The PS9402 is an optically coupled isolator containing a GaAlAs LED on the input side and a photo diode, a signal processing circuit and a power output transistor on the output side on one chip. The PS9402 is designed specifically for high common mode transient immunity (CMR), high output current and high switching speed. The PS9402 includes desaturation detection and active miller clamping functions. The PS9402 is suitable for driving IGBTs and Power MOS FETs. The PS9402 is in a 16-pin plastic SSOP (Shrink Small Outline Package). And the PS9402 is able to high-density (surface) mounting.


  • Long creepage distance (8 mm MIN.)
  • Large peak output current (2.5 A MAX., 2.0 A MIN.)
  • High-Speed switching (tPLH, tPHL = 200 ns MAX.)
  • UVLO (Under Voltage Lock Out) protection with hysteresis
  • Desaturation detection
  • Miller clamping
  • High common mode transient immunity (|CMH|, |CML| = 25 kV/μs MIN.)
  • Embossed tape product: PS9402-E3: 850 pcs/reel
  • Pb-Free product
  • Safety standards UL approved: No. E72422 CSA approved: No. CA 101391 (CA5A, CAN/CSA-C22.2 60065, 60950) DIN EN60747-5-2 (VDE0884 Part2) approved: No. 40024069 (Option)

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type Buy Sample

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
PS9402 Data Sheet 日本語 Datasheet PDF 292 KB
Application Notes & White Papers
Photocouplers Applications Note Application Note PDF 957 KB
Industrial Automation Brochure 日本語, 简体中文 Brochure PDF 7.93 MB
Photocouplers Brochure Brochure PDF 4.39 MB
Photocouplers Brochure 日本語 Brochure PDF 3.16 MB
Photocouplers Selction Guide 日本語 Brochure PDF 4.34 MB
PHOTOCOUPLERS Catalog Brochure PDF 9.83 MB