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HE721A2400 Dataheets PDF



Part Number HE721A2400
Manufacturers Littelfuse
Logo Littelfuse
Description Miniature Dual In-line Reed Relay
Datasheet HE721A2400 DatasheetHE721A2400 Datasheet (PDF)

Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Agency Approvals Agency Agency File Number E47258 Note: Contact Littelfuse for specific agency approval ratings. Dimensions Dimensions in mm (inch) 19.05 (.750) 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 .

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Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Agency Approvals Agency Agency File Number E47258 Note: Contact Littelfuse for specific agency approval ratings. Dimensions Dimensions in mm (inch) 19.05 (.750) 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 • Miniature dual in-line package • Optional coil suppression diode to protect coil drive circuits • External magnetic shield option • Diode suppression option • RoHS Compliant Benefits • One relay, various contacts choices reducing space and cost without compromising flexibility • Lower power coil consumption than competing electromechanical devices. • Hermetically sealed switching contact is immune to the effects of its environment • Transfer molded package gives maximum component protection Applications • Security Systems • Telecom Equipments • Process Control Systems • Industrial Equipments • Instrumentation 20.14 (.793) W HH 0.51 (.020) 0.51NOM. (.020) 10.16 NOM. (.400) 15.24 NOM. (.600) Fig. 1: HE700 0.51 (.020) 3.00 NOM. (.118) 0.51NOM. (.020) Table 1: Dimension Relay Type Body Type 10.16 NOM. (.400) 15.24 NOM. (.600) Fig. 2: HE751 L HE700 Transfer Molded External Shield 19.05 (.750) 20.14 (.793) 3.00 NOM. (.118) 0.25 NOM. (.010) 9.52 (.375) Fig. 3: HE700 (All) W 7.22 (.284) 7.62 (.300) H 5.50 (.217) 5.82 (.229) © 2016 Littelfuse Revised: 03/04/16 Specifications are subject to change without notice. littelfuse.com Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Table 2: Electrical and Operating Characteristics @ 25°C Column Number 1234 Contact Type Relay Types Form A SPST, DPST Standard Form C SPDT-CO Standard HE721, HE722 HE721C/E/R Form A SPST High Voltage HE751 Contact Rating 1 Power, Switching Voltage, Switching Current, Switching Current, Carry Watt - max. 10 5 10 Vdc - max. 200 175 300 A - max. 0.5 0.25 0.5 A - max. 1.2 1.5 1.2 Voltage Hold-off 4 Across Open Contacts Contacts to Coil Coil to E. Shield Between Isolated Terminals Vdc - min. Vac - min. Vac - min. Vac - min. 250 200 450 500 500 4000 150 150 N/A 500 N/A N/A Resistance 5 Contact, Initial Insulation Across Open Contacts Insulation Between Isolated Terminals Ω max. Ω min. Ω min. 0.150 1010 1010 0.200 1010 1010 0.150 1010 1010 Timing Operate Time Release Time ms - max. ms - max. 1.0 3.0 1.0 1.0 3.0 1.0 Environmental Temperature, Operating Temperature, Storage Vibration Resistance Shock Resistance °C °C G - max. 10-2000 Hz. G - max. 11 ms ½ sine -40 to +85 -40 to +105 20 50 -40 to +85 -40 to +105 20 50 -20 to +85 -40 to +105 20 50 Form B SPST-NC Standard HE721 10 200 0.5 1.5 250 500 N/A N/A 0.150 1010 1010 1.0 1.0 -40 to +85 -40 to +105 20 50 Part Numbering System HE7X - X - X - X - XX Model Number HE72 - Standard HE75 - High Voltage Number of Contacts 1 and 2 Contact Type A - Form A (SPST-NO or DPST-NO) B - Form B (SPST-NC) C - Form C (SPDT-CO) E - Form C (SPDT-CO) alternate foot print 1 R - Form C (SPDT-CO) alternate foot print 2 Note: Not all combinations of Part Number suffixes are available. Contact Littelfuse for details. General Options 00 - No Options 10 - Coil Suppression Diode 20 - Electrostatic Shield 30 - Coil Diode and E.S. Shield 40 - External Magnetic Shield 50 - External Magnetic Shield and Diode Standard Coil 05 - 5 Volt 12 - 12 Volt 24 - 24 Volt © 2016 Littelfuse Revised: 03/04/16 Specifications are subject to change without notice. littelfuse.com Reed Relays DIL Packaged > HE700 HE700 Miniature Dual In-line Reed Relay Table 3: Coil Characteristics @ 25°C Contact Form 1A SPST-NO 1B SPST-NC Electrical and Operating Characteristics Dimensions See Table 2 Column 1 Figure 1 Part Number HE721A0500 HE721A1200 HE721A2400 See Table 2 Column 4 Figure 1 HE721B0500 HE721B1200 HE721B2400 Nominal Coil Voltage Vdc 5 12 24 5 12 24 Coil Resistance ±10% Ohms 500 1000 2150 500 500 2150 Must Operate Vdc Must Maximum Release Coil Voltage Vdc Vdc 3.75 0.5 8.0 1.0 16.0 2.0 12 31 46 3.75 9.0 18.0 Notes 1 and 2 0.5 6.5 1.0 14 2.0 28 Top View 2.54mm (0.1") Grid Dot on Case: Pin 1 Numbers not printed on case. 1C SPDT-CO See Table 2 Column 2 Figure 1 HE721C0500 HE721C1200 HE721C2400 1C SPDT-CO See Table 2 Column 2 Figure 1 HE721E0500 HE721E1200 HE721E2400 1C SPDT-CO See Table 2 Column 2 Figure 1 HE721R0500 HE721R1200 HE721R2400 2A DPST-NO See Table 2 Column 1 Figure 1 HE722A0500 HE722A1200 HE722A2400 1A SPST-NO High Voltage See Table 2 Column 3 Figure 2 HE751A0500 HE751A1200 HE751A2400 Notes: 1. HE721B - Exceeding recommended voltage may cause contact reclosure. 2. Optional external magnetic shield not available on Form B relays. 5 12 24 5 12 24 5 .


HE721A1200 HE721A2400 HE721B0500


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