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Lead Contents

General-purpose Relay: Operating MY2 with a Transistor

FAQ No. FAQ02821

Primary Contents

Question

What should I be aware of when operating MY2 General-purpose Relays with a transistor?

Answer

When Relays turn OFF, counter electromotive force (surge) is generated. Counter electromotive force causes transistors to deteriorate or breakdown. Use Relays with a built-in diode for surge suppression.

Model

StructurePlug-in terminals
ClassificationNo. of polesWith indicatorWithout indicator
Coil surge absorbing diode
(coil for DC applications only)
2MY2N-D2MY2-D
3MY3N-D2MY3-D
4MY4N-D2MY4-D
DoubleMY4NZ-D2MY4Z-D

Note:

1.Make sure that the polarity is correct.

2.The reset time will be longer but it will still be within 20 ms.

3.Diode characteristics:
Withstand inverse voltage: 1,000 V
Forward current: 1 A