Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Description The HE700 is a miniature reed relay in a DIL package with a choice of normally open, normally open high voltage, normally closed or changeover contacts capable of switching up to 300Vdc at 10W. It is available with 5V, 12V, and 24V coils and diode suppression and also available with magnetic shield option. Features • External magnetic shield option • Miniature dual in-line package • Diode suppression option • Optional coil suppression diode to • RoHS Compliant protect coil drive circuits • UL Recognized to UL 508 as an Industrial Control Switch Benefits Agency Approvals • One relay, various contacts choices • Hermetically sealed switching reducing space and cost without contact is immune to the effects of Agency Agency File Number compromising flexibility its environment • Lower power coil consumption than • Transfer molded package gives competing electromechanical maximum component protection E47258 devices. Note: Not all parts are UL Recognized. Contact Littelfuse for specific parts and agency approval ratings. Applications • Security Systems • Industrial Equipments • Telecom Equipments • Instrumentation • Process Control Systems Dimensions Dimensions in mm (inch) 19.05 20.14 (.750) (.793) W H H 0.51 0.51 (.020) 10.16 NOM. (.020) 10.16 NOM. (.400) (.400) 0.25 NOM. 0.51NOM. 0.51NOM. (.020) 3.00 NOM. (.020) 3.00 NOM. (.010) 15.24 NOM. (.118) 15.24 NOM. (.118) 9.52 (.600) (.600) (.375) Fig. 1: HE700 Fig. 2: HE751 Fig. 3: HE700 (All) Table 1: Dimension Relay Type Body Type L W H Transfer Molded 19.05 (.750) 7.22 (.284) 5.50 (.217) HE700 External Shield 20.14 (.793) 7.62 (.300) 5.82 (.229) © 2019 Littelfuse Revised: 10/29/19 littelfuse.com Specifications are subject to change without notice.

Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Table 2: Electrical and Operating Characteristics @ 25°C Column Number 1 2 3 4 Form A Form C Form A Form B Contact Type SPST, DPST SPDT-CO SPST SPST-NC Standard Standard High Voltage Standard Relay Types HE721, HE722 HE721C/E/R HE751 HE721 Power, Switching Watt - max. 10 5 10 10 Voltage, Switching Vdc - max. 200 175 300 200 Contact Rating 1 Current, Switching A - max. 0.5 0.25 0.5 0.5 Current, Carry A - max. 1.2 1.5 1.2 1.5 Across Open Contacts Vdc - min. 250 200 450 250 Contacts to Coil Vac - min. 500 500 4000 500 Voltage Hold-off 4 Coil to E. Shield Vac - min. 150 150 N/A N/A Between Isolated Terminals Vac - min. 500 N/A N/A N/A Contact, Initial Ω max. 0.150 0.200 0.150 0.150 Insulation Across Open Contacts Resistance 5 Ω min. 1010 1010 1010 1010 Insulation Between Isolated Ω min. 1010 1010 1010 1010 Terminals Operate Time ms - max. 1.0 3.0 1.0 1.0 Timing Release Time ms - max. 1.0 3.0 1.0 1.0 Temperature, Operating °C -40 to +85 -40 to +85 -20 to +85 -40 to +85 Temperature, Storage °C -40 to +105 -40 to +105 -40 to +105 -40 to +105 Environmental Vibration Resistance G - max. 10-2000 Hz. 20 20 20 20 Shock Resistance G - max. 11 ms ½ sine 50 50 50 50 Part Numbering System HE7X - X - X - X - XX Model Number General Options HE72 - Standard 00 - No Options HE75 - High Voltage 10 - Coil Suppression Diode 20 - Electrostatic Shield Number of Contacts 30 - Coil Diode and E.S. Shield 1 and 2 40 - External Magnetic Shield Contact Type 50 - External Magnetic Shield and Diode A - Form A (SPST-NO or DPST-NO) Standard Coil B - Form B (SPST-NC) 05 - 5 Volt C - Form C (SPDT-CO) 12 - 12 Volt E - Form C (SPDT-CO) alternate foot print 1 24 - 24 Volt R - Form C (SPDT-CO) alternate foot print 2 Note: Not all combinations of Part Number suffixes are available. Contact Littelfuse for details. © 2019 Littelfuse Revised: 10/29/19 littelfuse.com Specifications are subject to change without notice.

Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Table 3: Coil Characteristics @ 25°C Electrical and Nominal Coil Must Must Maximum Top View 2.54mm (0.1") Grid Contact Operating Dimensions Part Number Coil Voltage Resistance Operate Release Coil Voltage Dot on Case: Pin 1 Form Characteristics Vdc ±10% Ohms Vdc Vdc Vdc Numbers not printed on case. HE721A0500 5 500 3.75 0.5 12 1A See Table 2 Figure 1 HE721A1200 12 1000 8.0 1.0 31 SPST-NO Column 1 HE721A2400 24 2150 16.0 2.0 46 Notes 1 and 2 HE721B0500 5 500 3.75 0.5 6.5 1B See Table 2 Figure 1 HE721B1200 12 500 9.0 1.0 14 SPST-NC Column 4 HE721B2400 24 2150 18.0 2.0 28 HE721C0500 5 200 3.75 0.5 14 1C See Table 2 Figure 1 HE721C1200 12 500 8.0 1.0 22 SPDT-CO Column 2 HE721C2400 24 2000 16.0 2.0 44 HE721E0500 5 200 3.75 0.5 14 1C See Table 2 Figure 1 HE721E1200 12 500 8.0 1.0 22 SPDT-CO Column 2 HE721E2400 24 2000 16.0 2.0 44 HE721R0500 5 200 3.75 0.5 14 1C See Table 2 Figure 1 HE721R1200 12 500 8.0 1.0 22 SPDT-CO Column 2 HE721R2400 24 2000 16.0 2.0 44 HE722A0500 5 200 3.75 0.5 12 2A See Table 2 Figure 1 HE722A1200 12 500 8.0 1.0 22 DPST-NO Column 1 HE722A2400 24 2150 16.0 2.0 46 1A HE751A0500 5 500 3.75 0.5 12 See Table 2 SPST-NO Figure 2 HE751A1200 12 1000 8.0 1.0 31 Column 3 High Voltage HE751A2400 24 2150 16.0 2.0 46 Notes: 1. HE721B - Exceeding recommended voltage may cause contact reclosure. 2. Optional external magnetic shield not available on Form B relays. HE700 PCB LAYOUT (Bottom View) Packaging Ø0.61 HOLE (.024) 2.54 (.100) Quantity & Packaging Packaging Taping Quantity Packaging Option Specification Width Code 12.70 (.500) 15.24 (.600) Bulk Bulk 1000/5000 N/A N/A 7.62 (.300) Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at http://www.littelfuse.com/disclaimer-electronics. © 2019 Littelfuse Revised: 10/29/19 littelfuse.com Specifications are subject to change without notice.

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: L ittelfuse: HE721A1240 HE721R1200 HE721A0520 HE721A1230 HE721A2420 HE721A1250 HE721R1210 HE722A2440 HE722A2450 HE721C1240 HE721C0550 HE722A1220 HE721R2400 HE722A2420 HE721C0530 HE722A1240 HE721A2440 HE721C0520 HE721A2430 HE721C1220 HE722A1230 HE751A2400 HE721C1250 HE722A0530 HE721C2440 HE721A0530 HE721C0540 HE722A1250 HE751A1200 HE722A0540 HE722A2430 HE721A1220 HE721R2410 HE722A0550 HE751A0500 HE721C1230 HE722A0520 HE721A0550 HE721A2450 HE721C2430 HE721C2420 HE721R0500 HE721A0540 HE721C2450 HE751A0510 HE721A0500 HE722A1200 HE722A2400 HE721A0510 HE722A0510 HE721A2410 HE722A2410 HE751A1210 HE721C1210 HE721C0500 HE722A1210 HE722A0500 HE721C0510 HE721C1200 HE721C2410 HE721C2400 HE721A1210 HE721R0510 HE721A2400 HE751A2410 HE721A1200 HE722A0600 HE722A0610 HE721B0510 HE721E0510 HE721E2400