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Datasheet

Version 01

Sep 2023

Page 1

ORD221 REED SWITCH

Applications

• Automotive electronic devices

• Control equipment

• Communication equipment

• Measurement equipment

• Household appliances

EXTERNAL DIMENSIONS (Unit: mm)

O R D221

Miniature offset-type



The ORD221 is a small single-contact reed switch designed for general

control of mediumlevel loads less than 100V. The contacts are sealed

within the glass tube with inert gas to maintain contact reliability.

Miniature offset-type



Hermetically sealed within a glass tube with inert gas,

reed contacts are not influenced by the external

atmospheric environment.



Quick response



Comprising of operating parts and electrical parts

arranged coaxially, reed switches are suited to high-

frequency applications.



Compact and light weight.



Superior corrosion resistance and wear resistance of the

contacts assures stable switching operation and long life.



Economically and easily becomes a proximity switch

when paired with a magnet.

FEATURES

ELECTRICAL CHARACTERISTICS

Parameter

Rated Value

Unit

Operate Time (max.)

0.4

ms

Bounce Time (max.)

0.5

ms

Release Time (max.)

0.05

ms

Resonant Frequency

2750±250

Hz

Operating Frequency (max.)

500

Hz

OPERATING CHARACTERISTICS

Parameter

Rated Value

Unit

Pull-in Value (PI)

10 to 30

AT

Drop-out Value (DO) (min.)

5

AT

Contact Resistance (CR) (max.)

100

mOhm

Breakdown Voltage (min.)

200 (PI≧20)

VDC

150 (10≦PI＜20)

VDC

Insulation Resistance (min.)

109

Ohm

Electrostatic Capacitance (max.)

0.3

pF

Contact Rating

10

VA

Maximum Switching Voltage (max.)

100DC/100AC

V

Maximum Switching Current (max.)

0.3

A

Maximum Carry Current (max.)

1.0

A