HMA121BV

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

SKU:d719b0ef9902 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

HMA121BV 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 HMA121BV

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)：150% @ 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 HMA121BV

HMA121BV

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121BV is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes SMD-4 surface-mount packaging. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 80 mA, and a forward voltage of 1.3 V at 50 mA forward current. The device provides an insulation voltage of 3750 Vrms and operates within a temperature range of -40°C to +100°C. Power dissipation is rated at 150 mW, with a maximum collector-emitter saturation voltage of 400 mV.

Transistor, Photovoltaic Output Optoisolators Feature Summary

Provides high-voltage isolation between input and output circuits via optical coupling
Features a compact four-pin surface-mount design for automated assembly
Utilizes an NPN phototransistor output stage for signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

General-purpose signal isolation in industrial control systems
Interface circuits for microcontrollers and logic gates
Power supply feedback loops requiring galvanic separation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distribution channels due to the part's obsolete status. Confirm RoHS compliance documentation and material composition declarations prior to integration. Ensure storage conditions maintain device integrity given the discontinuation. Validate pinout compatibility with existing PCB footprints during replacement planning.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output isolator is required with specific voltage ratings. Consider the SMD-4 package constraints for board space limitations. Evaluate the 3750 Vrms insulation requirement against system safety standards. Compare thermal performance characteristics within the specified operating temperature range.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the HMA121 series of optocouplers from onsemi. It represents a legacy product line designed for general-purpose isolation applications. The series typically offers standard transistor outputs with robust insulation capabilities suitable for various electronic interfaces.