Solid-state Timer H3FA CSM_H3FA_DS_E_2_1 Please read and understand this catalog before purchasing the products. Please consult OMRON representative if you have any questions or comments. Refer to Safety Precautions on page 9. DIP Model Timer for PC Board Use Provides Contact and Solid-state Output •Four time ranges are selectable. Models suffixed -@A@: 1 s, 10 s, 1 min, 10 min. Models suffixed -@B@: 6 s, 60 s, 6 min, 60 min. (cid:129)Timer operation may also be controlled through an external variable resistor. (cid:129)Timer can be cleaned while mounted on a PC Board with the sealing tape affixed. (cid:129)Twenty-four-pin IC socket can be used for mounting the Timer. (cid:129)Mountable on a 1-inch pitch rack. (H 19.5 × W 36.9 × D 17.75 mm) Model Number Structure Note:This model number legend includes combinations that are not available. Before ordering, please check the List of Models on page 2 for availability. H3FA- @ @ @ @ 1 2 3 4 1. Time-limit contact 4. Supply voltage None: Contact outputs (SPST-NO + SPST-NC) For contact output models S: Solid-state outputs 5DC: 5 V DC 2. Time range 6DC: 6 V DC A: 1 s to 10 min 12DC: 12 V DC B: 6 s to 60 min 24DC: 24 V DC 3. Operation/resetting system For solid-state output models None: Time-limit operation/power-OFF resetting and external 5/6DC: 5/6 V DC resetting, Integrating operation/power-OFF resetting and 12/24DC: 12/24 V DC external resetting U: Instantaneous operation, time-limit resetting/external resetting 1

H3FA Ordering Information ■ List of Models Item Model H3FA-A H3FA-B H3FA-SA H3FA-SB H3FA-AU H3FA-BU H3FA-SAU H3FA-SBU Operation/resetting Time-limit operation/power-OFF resetting and external Instantaneous operation, time-limit resetting/external system (See note.) resetting, resetting Integration operation/power-OFF resetting and external resetting Time-limit contact Contact output Solid-state output Contact output Solid-state output (SPST-NO + SPST-NC) (SPST-NO + SPST-NC) Instantaneous --- contact Mounting method Surface mounting (with IC socket or direct mounting on PC Board) Time range 1 s to 10 min 6 s to 60 min 1 s to 10 min 6 s to 60 min 1 s to 10 min 6 s to 60 min 1 s to 10 min 6 s to 60 min Supply 5 V DC H3FA-A 5DC H3FA-B 5DC --- --- H3FA-AU H3FA-BU --- --- voltage 5DC 5DC 6 V DC H3FA-A 6DC H3FA-B 6DC --- --- H3FA-AU --- --- --- 6DC 12 V DC H3FA-A H3FA-B --- --- H3FA-AU H3FA-BU --- --- 12DC 12DC 12DC 12DC 24 V DC H3FA-A H3FA-B --- --- H3FA-AU H3FA-BU --- --- 24DC 24DC 24DC 24DC 5/6 V DC --- --- H3FA-SA H3FA-SB --- --- H3FA-SAU H3FA-SBU 5/6DC 5/6DC 5/6DC 5/6DC 12/24 V DC --- --- H3FA-SA H3FA-SB --- --- H3FA-SAU H3FA-SBU 12/24DC 12/24DC 12/24DC 12/24DC Note:The desired operation/resetting system is selected by short-circuiting and opening the specified terminals. Specifications ■ Time Ranges Model Rated time Time setting range H3FA-A 1 s 0.1 to 1 s H3FA-AU 10 s 1 to 10 s H3FA-SA 1 min 0.1 to 1 min H3FA-SAU 10 min 1 to 10 min H3FA-B 6 s 0.6 to 6 s H3FA-BU 60 s 6 to 60 s H3FA-SB 6 min 0.6 to 6 min H3FA-SBU 60 min 6 to 60 min Note:1. The above timing ranges apply when the internal variable resistor of H3FA is used. 2. The external variable resistor may also be used by opening the terminal connected to the internal variable resistor. 3. Wire the appropriate terminal to select a time setting range. Refer to Rated Time and Terminal Connections on page 4 for details. 2

H3FA ■ Ratings Item H3FA-A/ H3FA-B H3FA-SA/ H3FA-SB H3FA-AU/ H3FA-BU H3FA-SAU/ H3FA-SBU Rated supply voltage 5 V DC, 6V DC, 12V DC, 24 V DC (See note 1.) 5/6 V DC (See note 1.) 12/24 V DC (See notes 1 and 2.) Operating voltage range 5 V DC: 90% to 110% of rated supply voltage 5/6 V DC: 90% to 110% of rated supply voltage 6, 12, 24 V DC: 85% to 110% of rated supply voltage 12/24 V DC: 85% to 110% of rated supply voltage Power consumption 5, 6 V DC: approx. 230 mW 5/6 V DC: approx. 80 mW 12 V DC: approx. 270 mW 12 V DC: approx. 100 mW 24 V DC: approx. 330 mW 24 V DC: approx. 240 mW Control outputs Contact output: SPST-NO + SPST-NC, Solid-state output: 150 mA max. at 30 V DC 3 A at 250 V AC with resistive load, Residual voltage: 1.0 V max. Minimum applied load: 10 mA at 5 V DC (Failure level: P, reference value) Ambient temperature Operating: −10°C to 55°C (with no icing) Storage: −25°C to 65°C (with no icing) Ambient humidity 35% to 85% Note:1. Permissible ripple: 20% max. (3% max. at 5, 6 V DC-operated models) Where, Mean X X/Mean value × 100 ≤ 20 (%) max. 2. Supply voltage can be selected by short-circuiting (12 V DC) or opening (24 V DC) the specified terminals. ■ Characteristics Accuracy of operating time ±0.5% FS max. (See note 1.) Setting error 0 to 30 % FS max. (at 20°C , at rated voltage) Reset time 10 ms max. Influence of voltage ±1% FS max. (2% FS max. for 5, 6, 5/6 V DC-operated models) Influence of temperature ±5% FS max. (See note 1.) Insulation resistance 100 MΩ min. (at 500 V DC) Dielectric strength 1,500 V AC, 50/60 Hz for 1 min (between control output and operating circuit) (See note 2.) 1,000 V AC, 50/60 Hz for 1 min (between contacts not located next to each other) (See note 2.) Vibration resistance Destruction: 10 to 55 Hz with 0.375-mm single amplitude in 3 directions for 1 hour each Malfunction: 10 to 55 Hz with 0.25-mm single amplitude in 3 directions for 10 minutes each Shock resistance Destruction: 1,000 m/s2 3 times each in 6 directions Malfunction: 100 m/s2 3 times each in 6 directions Life expectancy Mechanical: 10,000,000 operations min. (under no load at 1,800 operations/h) Electrical: 100,000 operations min. (3 A at 250 V AC, resistive load at 1,800 operations/h) Approved safety standards UL508, CSA C22.2 No.14 Weight Contact output models: approx. 15 g Solid-state output models: approx. 10 g Note:1. Add or subtract 10 ms to the ratings when using a timer with a rated time of 1 s. 2. Applicable to contact output models. ■ Life-test Curve (Reference Values) 0)4 1,000 ns (x1 750000 o ati 300 er p o g n hi Switc 10700 24 VDC L/R=7 ms 50 24 VDC cosφ=1 30 10 7 250 VAC cosφ=0.4 250 VAC cosφ=1 5 0 1 2 3 4 Load current (A) 3

H3FA Connections ■ Block Diagrams Note:All diagrams are views from the top. H3FA-A, H3FA-B, H3FA-SA, H3FA-SB When the input voltage is applied, the CR oscillator circuit in the The voltage across the H3FA-SA and -SB (solid-state output loads) Timer starts to oscillate via the power supply circuit, the counter is the load input voltage minus the residual voltage when the circuit counts up to the preset setting, and an output signal is transistor turns ON. produced. A transistor amplifies this signal to drive the load. Contact Output Solid-state Output For the external resistor Contact output (NO contact for For the external resistor Short for 12 V DC For the internal variable time-limit operation) For the internal variable Open for 24 V DC (See note.) resistor resistor Psuopwpelyr Power supplycircuit Voltage stabili-zer circuit CR oscillator circuit Counter circuit Output amplifiercircuit Psuopwpelyr Power supplycircuit Voltage stabili-zer circuit CR oscillator circuit Counter circuit Output amplifiercircuit Reset circuit Reset circuit Reset input Reset input Time range Contact output (NC contact for Time range selector Load selector time-limit operation) 5 to 24 V DC 10: Solid-state output terminal 12: Terminal for the internal load surge absorbing diode Note: When using 12/24 V DC-operated models. H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU Contact Output Solid-state Output For the external resistor For the external resistor Short for 12 V DC Open for 24 V DC (See note.) For the internal variable resistor For the internal variable resistor Psuopwpelyr Power supplycircuit Voltage stabili-zer circuit CR oscillator circuit Counter circuit Output amplifiercircuit Psuopwpelyr Power supplycircuit Voltage stabili-zer circuit CR oscillator circuit Counter circuit Output amplifiercircuit 150 mA max. Load surge- absorbing diode Reset circuit Start circuit Reset circuit Start circuit Load 5 to 24 V DC Note: When using a 12/24 V DC-operated model. ■ Rated Time and Terminal Connections Model Terminal connection 1 2 3 1 2 3 1 2 3 1 2 3 H3FA-A/-SA/-AU/-SAU 1 s 10 s 1 min 10 min H3FA-B/-SB/-BU/-SBU 6 s 60 s 6 min 60 min Note: 1. Short-circuit terminals 21 and 22 when using the internal variable resistor of H3FA. 2. An external resistor can also be used by opening terminals 21 and 22. When using an external resistor (1 MΩ for H3FA-A/-SA, 3 MΩ for H3FA-B/ -SB), connect it between terminals 21 and 23. 4

H3FA Operation ■ Timing Charts and External Connections Note:Do not apply voltage to any terminals other than the power supply terminals. Otherwise, the internal circuits may be damaged. H3FA-A, H3FA-B, H3FA-SA, H3FA-SB Standard Operation (ON-delay operation) Integration Operation When the power is turned ON and the set time has elapsed, an By opening the terminals connected to the internal variable resistor, output is produced. (Power turns ON when power terminals 1 and 24 Timer operation can be interrupted to enable the Timer to perform are shorted or when terminals 13 and 15 are shorted when using a time integration operations. Interrupt Timer operation by opening 12/24 V DC-operated model with a 12 V DC power supply.) terminals 21 and 22 when using the internal variable resistor or When connecting an external resistor to the Timer, connect it terminals 21 and 23 when using the external resistor. Timer between terminals 21 and 23, and open terminals 21 and 22. Refer operation can be resumed by reconnecting the terminals. to External Resistors and Operating Time (Reference Value) on page 7. When operating with an external reset input, short terminals 1 and 4. The Timer will start operating even if reset terminals 1 and 4 are open when the power is turned ON. In this case, the current flow is approximately 0.1 mA. If a contact is used for control, use a contact with high contact reliability, If a transistor is used for control, use an I of 10 μA and a V (sat) of ON OFFON CEO CE Power supply (terminals 1 and 24) 0.5 V or less. (See note.) ON OFF ON OFF For internal variable resistor ShortOpen Short Open Short Power supply (terminals 21 and 22) (terminals 1 and 24) For external resistor (See note.) 1m0in m.s Short Short (terminals 21 and 23) 1m0in m.s Reset input Open Reset input (terminals 1 and 4) (terminals 1 and 4) SPST-NO contact output SPST-NO contact output (terminals 13 and 16) (terminals 13 and 16) S(teorlimd-isntaaltse 1 o auntpdu 1t 0) Set time Set time Set time Set time S(teorlimd-isntaaltse 1 o auntpdu 1t 0) T1 T2 T3 T4 Tn SPST-NC contact output SPST-NC contact output (terminals 9 and 12) (terminals 9 and 12) Note:When using a 12/24 V DC-operated model with a 12 V DC Note:1. Control output is provided when the set time has elapsed power supply, short terminals 13 and 15. (T1 + T2 or T3 + T4). 2. When using a 12/24 V DC-operated model with a 12 V DC power supply, short terminals 13 and 15. Contact Output (Top View) Contact Output (Top View) Solid-state Output (Top View) Solid-state Output (Top View) When using the 12/24 V DC-operated model with a 24 V DC power When using the 12/24 V DC-operated model with a 24 V DC power supply, open terminals 13 and 15. supply, open terminals 13 and 15. 5

H3FA H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU One-shot Output Operation OFF-delay Operation Turn ON the power and apply a start input (short terminals 6 and 1). Turn ON the power and apply a start input (short terminals 6 and 1). (Power turns ON when power terminals 1 and 24 are shorted or (Power turns ON when power terminals 1 and 24 are shorted or when terminals 13 and 15 are shorted when using a 12/24 V DC- when terminals 13 and 15 are shorted when using a 12/24 V DC- operated model with a 12 V DC power supply.) An output is produced operated model with a 12 V DC power supply.) An output is produced immediately and is reset when the set time has elapsed. immediately. If the start input is applied constantly, however, the reset input can be applied until the set time elapses to stop time-limit If the reset input is applied (short terminals 4 and 1) with no start operation. (An output is produced when the start input is applied input (open terminals 6 and 1) while the Timer is operating, the Timer even when the constant reset input is ON prior to the start input.) stops operating and the output is reset. The time-limit operation starts when the reset input terminals are When operating with an external start or reset input, the current flow opened, and the output is reset when the set time has elapsed. from terminal 6 to terminal 1 (start input) or from terminal 4 to When operating with an external start or reset input, the current flow terminal 1 (reset input) is approximately 0.1 mA. A highly reliable is approximately 0.1 mA. A highly reliable contact is therefore contact is therefore recommended for the start and reset inputs. recommended for the start and reset inputs. Use an I of 10 μA Use an ICEO of 10 μA and a VCE (sat) of 0.5 V or less for transistor and a VCE (sat) of 0.5 V or less for transistor control. CEO control. When connecting an external resistor to the Timer, connect it between terminals 21 and 23, and open terminals 21 and 22. P(teowrmeirn saulsp p1l ya nd 24) ON P(teowrmeirn saulsp p1l ya nd 24) ON (See note 1.) (See note 1.) Short Open 10 ms min. Start input Start input (terminals 1 and 6) (terminals 1 and 6) (nSoetee 2.) 1m0in m.s Short Open Reset input Reset input (terminals 1 and 4) (terminals 1 and 4) SPST-NO contact output SPST-NO contact output (terminals 13 and 16) (terminals 13 and 16) Solid-state output Solid-state output (terminals 1 and 10) T T T t1 (terminals 1 and 10) T t1 T t2 T t3 SPST-NC contact output SPST-NC contact output (terminals 9 and 12) (terminals 9 and 12) Note:1. When using a 12/24 V DC-operated model with a 12 V DC Note:1. When using a 12/24 V DC-operated model with a 12 V DC power supply, short terminals 13 and 15. power supply, short terminals 13 and 15. 2. The start input is disabled during the time limit. 2. T denotes the set time. t1, t2, and t3 < T 3. T denotes the set time. t < T 1 Contact Output (Top view) Contact Output (Top view) Contact output (SPST-NC contact for time-limit operation) Solid-state Output (Top View) Solid-state Output (Top View) When using the 12/24 V DC-operated model with a 24 V DC power When using the 12/24 V DC-operated model with a 24 V DC power supply, open terminals 13 and 15. supply, open terminals 13 and 15. 6

H3FA ■ External Resistors and Operating Time (Reference Value) Refer to the following characteristics diagrams H3FA-A/-SA/-AU/-SAU H3FA-B/-SB/-BU/-SBU when using an external resistor. •U0.s1e W a/n1 eMxtΩe rfnoar lH re3sFiAst-oAr, r-aStAed, -aAtU a,b aonudt -SAU me (%) 120 me (%) 120 (cid:129)SDorBo 0 Un.1.o tW ru/3n MleΩad fso rp Har3aFllAel- Bto, -pSoBw,e -rB lUin,e asn adn -d Operating ti 10800 Operating ti 10800 keep the leads shorter than 2 m to minimize the effects of external noise. 60 60 (cid:129)The characteristics diagrams represent typical data. The factory set operating time may not always be uniform from one product 40 40 to another. A variable resistor is recommended if more precise time 20 20 adjustments are required. The operating time is slightly longer than the set time as the length of the lead increases. 0 0.5 1 1.5 0 1 2 3 4 External resistor (MΩ) External resistor (MΩ) ■ Extending the Reset Time DIP Timers have a shorter reset time than that of conventional timers Rated voltage Capacitor capacity for use in solid-state circuit applications. To extend the reset time to that of conventional timers, i.e., about 100 ms, during operation, 12 V DC 10 μF, 25 V connect the Timer to a capacitor from the table as shown in the 24 V DC 4.7 μF, 50 V following diagram. The reset time after the set time has elapsed will 5 and 6 V DC 22 μF, 16 V vary with the load relay, so select an appropriate capacitor for the load relay. 24 23 22 21 C 1 2 3 4 7

H3FA Dimensions Note:All units are in millimeters unless otherwise indicated. H3FA-A, H3FA-B, H3FA-SA, H3FA-SB Mounting holes (Top view) H3FA-A/-B Twelve, 1.0 dia. holes H3FA-SA/-SB Twelve, 1.0 dia. holes Applicable Connecting Socket Standard 24-pin IC socket can be used to mount the Timer. H3FA-AU, H3FA-BU, H3FA-SAU, H3FA-SBU Mounting holes (Top View) H3FA-AU/-BU H3FA-SAU/-SBU Applicable Connecting Socket Standard 24-pin IC socket can be used for mounting the Timer. 8

H3FA Safety Precautions ■ ■ Precautions for Safe Use Precautions for Correct Use Observe the following items to ensure the safe use of this product. (cid:129)Do not use excessive force to turn the time setting knob. Otherwise, it may be damaged. Environmental Precautions (cid:129)When more precise operating time settings are required, measure the operating time prior to use and adjust the time setting knob (cid:129)Store the H3FA within the specified ratings. If the H3FA has been accordingly. stored at a temperature of –10°C or lower, let it stand for 3 hours or (cid:129)Be very careful when handling terminal leads. longer at room temperature before turning ON the power supply. (cid:129)Do not touch terminals with hands or objects that may be statically (cid:129)Use the H3FA within the specified ratings for operating temperature charged from mounting, transport, or other activities. Otherwise, and humidity. the terminals may be damaged. Discharge static prior to handling (cid:129)Do not operate the H3FA in locations subject to sudden or extreme the Timers by touching a grounded object or by using another changes in temperature, or locations where high humidity may method. result in condensation. (cid:129)Refer to the following diagram for the set values for various (cid:129)Do not use the H3FA in locations subject to vibrations or shock. operating times. Extended use in such locations may result in damage due to stress. (cid:129)Do not use the H3FA in locations subject to excessive dust, e (%) 130 corrosive gas, or direct sunlight. m 120 Operating g ti range n Usage Precautions erati 100 p O (cid:129)Install a switch or circuit breaker that allows the operator to 80 immediately turn OFF the power, and label it to clearly indicate its function. 60 (cid:129)Be sure to wire the terminals correctly. (cid:129)Internal elements may be destroyed if a voltage outside the rated 40 voltage is applied. (cid:129)Maintain voltage fluctuations in the power supply within the 20 specified range. 0 10 20 30 40 50 60 70 80 90100 Set value (%) (cid:129)When cleaning the timer, confirm that the sealing tape is securely in place. Do not clean without this sealing tape affixed. Use alcohol type (IPA, ethanol) solvent, which are less chemically reactive. Note that use of other solvents may damage the materials used for the Timer. Clean the Timer in less than 2 minutes. The cleaning solution must be 50°C or less. The tails of the connecting leads are solder-plated with consideration given to temperature at the time of soldering. When soldering the leads, keep the temperature at 260°C±5°C and complete soldering within 10 s. Do not use ultrasonic cleaning. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 9

Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: • Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. • Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. • Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2008.12 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2008 All Right Reserved.