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 • High voltage switching version • Normally open and change over contact configurations available Benefits Agency Approvals Agency • External magnetic shield option • Single in-line configuration allows high packing densities, minimizing space and cost • Lower power coil consumption than competing electromechanical devices Agency File Number E47258 • Hermetically sealed switching contact is immune to its environment • Transfer molded package gives maximum component protection Note: Contact Littelfuse for specific agency approval ratings. Applications Dimensions in mm (inch) 24.13 (.950) 24.90 (.980) 0.51 (0.020) 3.00 NOM. (.118) 0.51 NOM. (0.020) • Automatic Test Equipments • Instrumentation • Security Systems • Telecom Equipments • Process Control Systems Dimensions 0.51 (0.020) 3.00 NOM. (.118) 0.51 NOM. (0.020) 10.16 NOM. (.400) 20.32 NOM. (.800) W 10.16 NOM. (.400) 20.32 NOM. (.800) Fig. 1: HE3321A, HE3351A 2.54 NOM. (.100) Fig. 2: HE3321C H 0.25 NOM. (.010) Fig. 3: HE3300 (All) Table 1: Dimension Relay Type HE3300 Body Type L W H Transfer Molded 24.13 (.950) 7.00 (.276) 7.40 (.291) External Shield 24.90 (.980) 7.60 (.299) 7.80 (.307) © 2016 Littelfuse Revised: 03/04/16 Specifications are subject to change without notice. littelfuse.com 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 Contact Type Form A SPST-NO Standard Form A SPST-NO High Voltage Form C SPST-CO Standard Relay Types HE3321A HE3351A HE3321C Contact Rating Voltage Hold-off Resistance 5 Power, Switching Voltage, Switching Current, Switching Current, Carry Watt - max. Vdc - max. A - max. A - max. 10 200 0.5 1.2 10 300 0.5 1.5 5 175 0.25 1.5 Across Open Contacts Contacts to Coil Vdc - min. Vac - min. 250 2500 450 2500 200 2500 Contact, Initial Insulation Across Open Contacts Insulation Between Isolated Terminals Ω max. Ω min. Ω min. 0.150 1010 1010 0.150 1010 1010 0.200 1010 1010 Operate Time Release Time ms - max. ms - max. 1.0 1.0 1.0 1.0 3.0 3.0 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 -20 to +85 -40 to +105 20 50 -40 to +85 -40 to +105 20 50 1 4 Timing Environmental Table 3: Coil Characteristics @ 25°C Contact Form and Type 1A SPST-NO 1C SPDT-CO 1A SPST-NO High Voltage Electrical and Operating Characteristics See Table 2 Column 1 See Table 2 Column 3 See Table 2 Column 2 Dimensions See Figure 1 See Figure 2 See Figure 1 © 2016 Littelfuse Revised: 03/04/16 Specifications are subject to change without notice. Part Number Nominal Coil Voltage Vdc Coil Resistance ±10% Ohms Must Operate Vdc Must Release Vdc Maximum Coil Voltage Vdc HE3321A0400 5 500 3.75 0.5 22 HE3321A1200 12 500 9.0 1.0 22 HE3321A2400 24 2000 18.0 2.0 44 HE3321C0500 5 125 3.75 0.5 11 HE3321C1200 12 500 9.0 1.0 22 HE3321C2400 24 2000 18.0 2.0 44 HE3351A0500 5 125 3.75 0.5 11 HE3351A1200 12 500 9.0 1.0 22 HE3351A2400 24 2000 18.0 2.0 44 Top View 2.54mm (0.1") Grid Dot on Case: Pin 1 Numbers not printed on case. 1 2 1 2 1 2 3 3 4 5 3 4 4 littelfuse.com Reed Relays SIL Packaged > HE3300 HE3300 Miniature Single In-line Reed Relay Part Numbering System HE3300 PCB LAYOUT (Bottom View) HE33XX - X - XX - XX HE3321A HE3351A HE3321C 0.80 HOLE Ø(.032) Model Number HE3321 - Standard HE3351 - High Voltage 5.08 TYP (.200) 10.16 (.400) Contact Type A - Form A (SPST-NO) C - Form C (SPDT-CO) 20.32 (.800) 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 Bulk © 2016 Littelfuse Revised: 03/04/16 Specifications are subject to change without notice. Bulk Quantity 500 Quantity & Packaging Code N/A Taping Width N/A littelfuse.com