4N37

Features 

• High isolation 5000 VRMS

• Patented coplanar structure DMC-Isolator®

• DC input with transistor output

• Operating temperature range - 55 °C to 110 °C

• External Creepage ≥ 7.0mm 

• Distance Through Isolation ≥ 0.4mm

• Clearance Distance ≥ 8.0mm (M Type)

• RoHS and REACH compliance

• Halogen Free compliance (Optional)

• Regulatory Approvals

✓ UL - UL1577 (E364000)

✓ VDE - EN60747-5-5(VDE0884-5)

✓ CQC – GB4943.1, GB8898 (14001105802)

✓ IEC62368 (FI/41119)

Description

The 4N25, 4N26, 4N27, 4N28, 4N35, 4N36, 4N37, 

4N38, H11A1, H11A2, H11A3, H11A4, H11A5 series

consist of a photo transistor optically coupled to an

Infrared-emitting diode in a 6-lead DIP DMC-Isolator®

package with different lead forming options.

Applications

• Microprocessor system interface

• Computer peripheral interface

• Switch mode power supplies