Reed Relays SIL Packaged > HE3300 HE3300 Miniature Single In-line Reed Relay Description The HE3300 is a miniature reed relay in a SIL package with a choice of normally open, normally open high voltage or changeover contacts capable of switching up to 300Vdc at 10W. It is available with 5V, 12V, and 24V coils and has external magnetic shield options. Features • Miniature single in-line package • External magnetic shield option • High voltage switching version • RoHS Compliant • Normally open and change over • UL Recognized to UL 508 as an contact configurations available Industrial Control Switch Benefits Agency Approvals • Single in-line configuration allows • Hermetically sealed switching Agency Agency File Number high packing densities, minimizing contact is immune to its space and cost environment • Lower power coil consumption than • Transfer molded package gives E47258 competing electromechanical maximum component protection devices Note: Not all parts are UL Recognized. Contact Littelfuse for specific parts and agency approval ratings. Applications • Security Systems • Automatic Test Equipments Dimensions • Telecom Equipments • Instrumentation Dimensions in mm (inch) • Process Control Systems 24.13 24.90 W (.950) (.980) 0.51 3.00 NOM. 0.51 (0.020) (.118) (0.020) 3.0(0.1 N18O)M. H 0.51 NOM. 0.51 NOM. 10.16 NOM. 10.16 NOM. (0.020) (0.020) (.400) (.400) 2.54 NOM. 0.25 NOM. 20.32 NOM. 20.32 NOM. (.100) (.010) (.800) (.800) Fig. 1: HE3321A, HE3351A Fig. 2: HE3321C Fig. 3: HE3300 (All) Table 1: Dimension Relay Type Body Type L W H Transfer Molded 24.13 (.950) 7.00 (.276) 7.40 (.291) HE3300 External Shield 24.90 (.980) 7.60 (.299) 7.80 (.307) © 2019 Littelfuse Revised: 10/29/19 littelfuse.com Specifications are subject to change without notice.

Reed Relays SIL Packaged > HE3300 HE3300 Miniature Single In-line Reed Relay Table 2: Electrical and Operating Characteristics @ 25°C Column Number 1 2 3 Form A Form A Form C Contact Type SPST-NO SPST-NO SPST-CO Standard High Voltage Standard Relay Types HE3321A HE3351A HE3321C Power, Switching Watt - max. 10 10 5 Voltage, Switching Vdc - max. 200 300 175 Contact Rating 1 Current, Switching A - max. 0.5 0.5 0.25 Current, Carry A - max. 1.2 1.5 1.5 Across Open Contacts Vdc - min. 250 450 200 Voltage Hold-off 4 Contacts to Coil Vac - min. 2500 2500 2500 Contact, Initial Ω max. 0.150 0.150 0.200 Resistance 5 Insulation Across Open Contacts Ω min. 1010 1010 1010 Insulation Between Isolated Terminals Ω min. 1010 1010 1010 Operate Time ms - max. 1.0 1.0 3.0 Timing Release Time ms - max. 1.0 1.0 3.0 Temperature, Operating °C -40 to +85 -20 to +85 -40 to +85 Temperature, Storage °C -40 to +105 -40 to +105 -40 to +105 Environmental Vibration Resistance G - max. 10-2000 Hz. 20 20 20 Shock Resistance G - max. 11 ms ½ sine 50 50 50 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 and Type Characteristics Vdc ±10% Ohms Vdc Vdc Vdc Numbers not printed on case. HE3321A0400 5 500 3.75 0.5 22 1 2 3 4 1A See Table 2 See HE3321A1200 12 500 9.0 1.0 22 SPST-NO Column 1 Figure 1 HE3321A2400 24 2000 18.0 2.0 44 HE3321C0500 5 125 3.75 0.5 11 1 2 3 5 4 1C See Table 2 See HE3321C1200 12 500 9.0 1.0 22 SPDT-CO Column 3 Figure 2 HE3321C2400 24 2000 18.0 2.0 44 HE3351A0500 5 125 3.75 0.5 11 1 2 3 4 1A See Table 2 See SPST-NO HE3351A1200 12 500 9.0 1.0 22 Column 2 Figure 1 High Voltage HE3351A2400 24 2000 18.0 2.0 44 © 2019 Littelfuse Revised: 10/29/19 littelfuse.com Specifications are subject to change without notice.

Reed Relays SIL Packaged > HE3300 HE3300 Miniature Single In-line Reed Relay HE3300 PCB LAYOUT (Bottom View) Part Numbering System HE33XX - X - XX - XX HE3321A HE3351A HE3321C 0.80 HOLE Ø(.032) Model Number 5.08 TYP (.200) HE3321 - Standard HE3351 - High Voltage Contact Type 10.16 (.400) 20.32 (.800) A - Form A (SPST-NO) C - Form C (SPDT-CO) 2.54 (.100) Standard Coil 04 - 5 Volt 12 - 12 Volt 24 - 24 Volt General Options 00 - No Options 40 - External Magnetic Shield Note: Not all combinations of Part Number suffixes are available. Contact Littelfuse for details. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Bulk Bulk 500 N/A N/A © 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: HE3351A1200 HE3321C2400 HE3321A0400 HE3351A2400 HE3351A0500 HE3321C1200 HE3321A1200 HE3321A2400 HE3321C0500 HE3321C0400