HMA121A

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

SKU:8903526017d8 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

HMA121A is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISO 3.75KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.

Transistor, Photovoltaic Output Optoisolators specifications for HMA121A

Description：OPTOISO 3.75KV 1CH TRANS 4-SMD
Series：-
Mfr：onsemi
Package：Box
Number of Channels：1
Voltage - Isolation：3750Vrms
Current Transfer Ratio (Min)：100% @ 5mA
Current Transfer Ratio (Max)：300% @ 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 ~ 100°C
Mounting Type：Surface Mount
Package / Case：4-SMD, Gull Wing
Supplier Device Package：4-SMD

Transistor, Photovoltaic Output Optoisolators datasheet and documents for HMA121A

HMA121A

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121A is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and operates within a temperature range of -40°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 80 mA, and a power dissipation of 150 mW. The device provides an isolation voltage of 3750 Vrms with a forward current rating of 50 mA and a typical current transfer ratio of 300%. It is housed in a compact SMD-4 package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

Provides high-voltage electrical isolation between input and output circuits
Utilizes an NPN phototransistor for signal transmission
Designed for surface-mount assembly in compact form factors

Transistor, Photovoltaic Output Optoisolators Applications

General-purpose digital signal isolation
Power supply feedback loops
Microcontroller interface circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Ensure storage conditions adhere to moisture sensitivity levels prior to reflow soldering processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Evaluate thermal management capabilities given the 150 mW power dissipation limit. Verify that the 80 V collector-emitter voltage meets circuit switching requirements. Consider the 3750 Vrms isolation rating for safety compliance in relevant applications.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the HMA121 series of optocouplers from onsemi. It shares functional similarities with other devices in the family but is distinguished by its specific packaging and electrical characteristics. The series targets general isolation needs in industrial and consumer electronics.