FODM121DV

$0.16

Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
Series：-
Mfr：onsemi
Package：Box

SKU:b0f19ea2ed56 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
Series：-
Mfr：onsemi
Package：Box
Number of Channels：1
Voltage - Isolation：3750Vrms
Current Transfer Ratio (Min)：50% @ 5mA
Current Transfer Ratio (Max)：600% @ 5mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：3µs, 3µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：80V
Current - Output / Channel：80mA
Voltage - Forward (Vf) (Typ)：1.3V (Max)
Current - DC Forward (If) (Max)：50 mA
Vce Saturation (Max)：400mV
Operating Temperature：-40°C ~ 110°C
Mounting Type：Surface Mount
Package / Case：4-SMD, Gull Wing
Supplier Device Package：4-SMD

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FODM121DV

Overview

The FODM121DV is a single-channel optoisolator manufactured by onsemi, featuring a GaAs infrared LED coupled to an NPN phototransistor. It provides a high isolation voltage of 3750Vrms and operates within a temperature range of -40°C to 110°C. The device utilizes a compact 4-SMD (鸥翼) surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 80V, a DC forward current limit of 50mA, and a typical rise/fall time of 3µs. The current transfer ratio ranges from 100% to 300% at a forward current of 5mA.

Feature Summary

High isolation voltage capability for safe signal transmission between isolated circuits
Compact 4-pin surface-mount design suitable for space-constrained applications
Wide operating temperature range ensuring reliability in harsh environments

Applications

Industrial control systems requiring galvanic isolation
Consumer electronics with safety isolation requirements
Communication equipment signal interfacing

Procurement Notes

Verify the specific suffix 'DV' against official manufacturer documentation to confirm exact packaging and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm RoHS compliance status through the latest material declaration documents provided by onsemi before finalizing procurement plans.

Selection Notes

Select this component when a small form factor is required alongside standard transistor output characteristics. Consider the 3750Vrms isolation rating for safety-critical interfaces. Evaluate the 3µs switching speed against system timing requirements. Ensure the 80V collector voltage meets the load requirements of the isolated side circuitry.

Part Context

This part belongs to the FODM121 series of micro-miniature optocouplers. These devices are designed for general-purpose isolation tasks where size and performance are balanced. The series typically includes variants with different suffixes indicating packaging or reel configurations, all sharing the same core optical and electrical characteristics.