Miniature Standard Formations Test Coils Magnets Production Crosslink PC Cards Notes

Magnets
Test Coils
Lead Free

Protection
Formations
AT Band FAQ

Usage Notes

Reed Glossary

SM-1322 Sub Miniature Reed Switch

Release AT configurable from 40% to 90% of operate AT

Round glass and wire for maximum seal strength

Capable of switching 230V AC

RoHS Compliant and Lead-free

10-40 operate AT band

This form A reed switch is built with a 2.25 mm diameter glass with a higher wall thickness for better glass to metal seals, and is a good solution for general purpose, high volume applications with a little shock and vibration, such as toys. The centre contact also makes it suitable for coil applications. The three differential ranges available cover a wide range of release AT specific applications. A specially plated contact for 230 VAC line voltage switching is also available. This reed switch is completely Lead-free and conforms to the RoHS directive.

SM-1322 Sub Miniature Reed Switch Drawing

All dimensions in mm

Not to be cropped or formed, less than 2.0 mm from the seals

Download this data sheet

Lead Formations

SM-1322 reed switches can be supplied in the standard formations shown below. Do contact us for any other special formations or non-standard bending /forming pitches. More information on these formations and tolerances for the dimensions given below can be found here.

Applications

This reed switch is suitable for use in the following applications and in many others: copiers and scanners, coffee machines, flow sensing, inclination sensors, lake current measurement, power switches in explosive areas, ferrous metal detection sensors, gear speed and direction sensors...

Electrical

Sub Code		L	M	H	AC
Operate Range	AT	10 - 40	10 - 40	10 - 40	20 - 40
Release Range	AT	4 - 20	6 - 25	7.5 - 30	6 - 25
Contact Rating (max)	W / VA	10.0	10.0	10.0	10.0
Switching Current (max)	A	0.5	0.5	0.5	0.5
Carry Current (max)	A	1.5	1.5	1.5	1.5
DC Switching Voltage (max)	V DC	180	180	180	180
AC Switching Voltage (max)	V AC	130	130	130	230
Breakdown Voltage (min)	V DC	200	200	200	280
Initial Contact Resistance (max)	mΩ	100	120	150	150
Insulation Resistance (min)	Ω	10¹¹	10¹¹	10¹¹	10¹¹
Capacitance (min)	Pf	0.2	0.2	0.2	0.2

Miscellaneous

Operate Time (max)	ms	0.5
Bounce Time (max)	ms	0.15
Release Time (max)	ms	0.15
Resonance Frequency	Hz	> 2000
Operating Frequency (max)	Hz	500
Operating Temperature	°C	-40 to +200
Shock Resistance (½Sin wave for 11ms)	g	50
Vibration Resistance (10-2000Hz)	g	20
Measurement Test Coil		717 102 002