Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

HB-2232 Reed Switch with High Breakdown

  • Drawing of HB-2232 Reed Switch
  • Drawing of HB-2232 Reed Switch for Soldering
  • Drawing of HB-2232 Reed Switch for SMD mounting
  • Drawing of HB-2232 Reed Switch for Horizontal mounting
  • Drawing of HB-2232 Reed Switch for Vertical mounting


Breakdown Voltage Configurable. Ruthenium contact. 22.0 mm Glass length. Normally Open. Inert gas filled. 4 types of Lead Formations.


Omni-polar. Does not require power for operation. Sputtered Contact. RoHS Compliant. Not ESD Sensitive.


This reed switch is designed with highly flexible blades to get maximum contact gap at lower AT ranges, and consequently having high break down characteristics. The two types of contacts options available provide breakdown at 350V or 500V minimum. Higher Ampere Turn groups will have even higher breakdown voltage values. Another added advantage is that these reed switches can be used in application with vibration as slight blade movement when using lower AT bands will not cause unwanted closures. The cropped version is suitable for smaller plastic housings and can be soldered to cables, the SMD version is suitable for reflow on PCBs, and the vertical and horizontal mount versions are suitable for mounting on through hole PCBs.


Breakdown Voltage Code   L H
Operate Range AT 20 – 60 30 – 60
Release Range AT 8 – 25 12 – 25
Contact Rating (max) W/VA 30 70
Switching Current (max) A 0.5 0.75
Carry Current (max) A 1.75 2.5
DC Switching Voltage (max) VDC 230 300
AC Switching Voltage (max) VAC 230 250
Breakdown Voltage (min) VDC 350 500
Contact Resistance (max) 100 100
Insulation Resistance (min) Ω 1011 1011
Capacitance (min) pF 0.2 0.2


Operate Time (max) ms 1.0
Bounce Time (max) ms 0.5
Release Time (max) ms 0.2
Resonance Frequency Hz >2000
Operating Frequency Hz 500
Operating Temperature °C -40 to +200
Shock Resistance (½Sin wave for 11ms) G 50
Vibration Resistance (10-2000Hz) G 20
Test Coil Code   717 102 002

Ordering Code

Breakdown Voltage Code L M
  350V 500V
Formation Code C S V H
  Cropped SMD Vertical Mount Horizontal Mount

HB-2232-(Breakdown Voltage Code)-(Operate AT Band)-(Lead Formation Code)

Ordering Code Examples

HB-2232-L-20-25 denotes 300 V breakdown voltage in 20-25 Operate AT band with unmodified leads
HB-2232-H-30-35-C denotes 500 V breakdown voltage in 30-35 Operate AT band with cropped leads

Product Handling

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Soldering Guide

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Ferro-magnetic parts

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Potting and Encapsulation

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Reed Contact Protection Circuits

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Magnet Information

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Other Special Configurations Available

Lower Static Contact Resistance
Dynamic Contact Resistance Limit
Higher Insulation Resistance
Special Release Limits
Gold plated leads


Although we can never restrict the use of a reed switch to a particular field, the following is a list of some of the applications that the HB-2232 reed switch is known to perform well.

Reed switches and Reed Sensors in Portable Defibrillators

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High Voltage Relays

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Reed sensors for Tamper-proofing Electricity Meters

tamper proof electricity meter Electric Companies use meters calibrated to measure 1 kilo-watt-hour and also measure maximum demand,...Continue reading ->

Thermal Reed Switches in Rice Cookers

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HB-2232 30W Reed Switches with High Breakdown
22.0mm x ø3.2mm, complete data sheet and technical specifications. This Reed Switch supersedes MRA 203, MRA 200 and MRA 2021 and can be considered a direct equivalent. Customers can safely use HB-2232 in place of HSR-105R.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: HB-2232
3.8 based on 4 reviews