Built-in Zero-cross Circuit, High Noise Resistance Type Phototriac Coupler

❈Lead forming type of S21MD4V is also available. (S21MD4W)

❈❈TUV (DIN-VDE0884)approved type is also available as an option.

■Features

1. Built-in zero-cross circuit

2. High critical rate of rise of OFF-state volt-

age (dV/dt : MIN. 100V/µs)

3. High repetitive peak OFF-state voltage

(VDRM : MIN. 600V)

4. Isolation voltage between input and output

Viso : 5 000Vrms

5. UL recognized, file No. E64380 (S21MD4V/S21MD4W)

❈ S21MD4V is for 200V line

■Applications

1. For triggering medium/high power triac