Reed Relay Datasheet H3300 Miniture 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 & Benefits Single in-line configuration High voltage switching allows high packing densities, version minimizing space and cost Normally open and change Lower power coil over contact configurations consumption than competing available electromechanical devices External magnetic shield Hermetically sealed switching option contact is immune to its RoHS Compliant environment UL Recognized to UL 508 as Agency Approvals Transfer molded package an Industrial Control Switch gives maximum component Agency Agency File Number protection E47258 Miniature single in-line Note: Not all parts are UL Recognized. Contact Littelfuse for specific parts and agency approval ratings. package Applications Security Systems Automatic Test Equipments Telecom Equipments Instrumentation Process Control Systems Dimensions Dimensions in mm (inch) 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) Fig. 1: HE3321A, HE3351A Fig. 2: HE3321C Fig. 3: HE3300 (All) 24.13 24.90 W (.950) (.980) 0.51 0.51 3.00 NOM. 3.00 NOM. (0.020) (0.020) (.118) H (.118) 0.51 NOM. 0.51 NOM. 10.16 NOM. 10.16 NOM. (0.020) (0.020) (.400) (.400) 2.54 NOM. 0.25 NOM. (.100) (.010) 20.32 NOM. 20.32 NOM. (.800) (.800) 2020 Littelfuse, Inc. 1 Specifications are subject to change without notice. Revised: BA.12/16/20Reed Relay Datasheet H3300 Miniture Single In-line Reed Relay Table 2 Electrical and Operating Characteristics 25C Contact Type Form A SPST-NO Form A SPST-NO Form C SPST-CO Standard High Voltage Standard Characteristics Relay Types HE3321A HE3351A HE3321C Power, Switching Watt - max. 10 10 5 Vdc - max. 200 300 175 2 Voltage, Switching Vac - max. 140 265 120 1 Contact Rating Adc - max. 0.5 0.5 0.25 3 Current, Switching Aac - max. 0.35 0.35 0.18 Current, Carry Adc - max. 1.2 1.5 1.5 Across Open Contacts Vdc - min. 250 450 200 4 Voltage Hold-off Contacts to Coil Vac - min. 2500 2500 2500 Contact, Initial max. 0.150 0.150 0.200 10 10 10 Resistance Insulation Across Open Contacts min. 10 10 10 10 10 10 Insulation Between Isolated Terminals min. 10 10 10 Operate Time 1.0 1.0 3.0 Timing ms - max. Release Time 1.0 1.0 3.0 Temperature, Operating C -40 to +85 -20 to +85 -40 to +85 5 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 sine 50 50 50 Notes: 1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/lofe information. 2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A & AN107 for details. 3. Electrical Load Life Expectancy - Contact Littelfuse with voltage current values along with type of load. 4. Breakdown Voltage - Per MIL-STD-202, Method 301. 5. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads. Table 3 Coil Characteristics 25C Nominal Coil Top View 2.54mm (0.1 ) Contact Electrical & Must Must Maximum Part Coil Resistance Grid Dot on Case: Form Operating Dimensions Operate Release Coil Voltage Number Voltage 10% Pin 1 Numbers not & Type Characteristics Vdc Vdc Vdc Vdc Ohms printed on case. 12 34 HE3321A0400 5 500 3.75 0.5 22 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 12 35 4 HE3321C0500 5 125 3.75 0.5 11 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 12 34 1A HE3351A0500 5 125 3.75 0.5 11 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 2020 Littelfuse, Inc. 2 Specifications are subject to change without notice. Revised: BA.12/16/20