HMA121

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

SKU:12bc1dbd4dab Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

HMA121 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 HMA121

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 ~ 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 HMA121

HMA121

Transistor, Photovoltaic Output Optoisolators Overview

The HMA121E is a single-channel transistor output optocoupler manufactured by onsemi. It integrates a gallium arsenide infrared emitting diode and an NPN silicon phototransistor within a compact 4-pin Mini-Flat surface-mount package (SMD-4). The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 80 mA, and a forward current rating of 50 mA. The typical current transfer ratio is specified at 300%, with a maximum collector-emitter saturation voltage of 400 mV. It operates within a temperature range of -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

Compact four-pin Mini-Flat surface-mount package design for space-constrained applications
High isolation capability with 3750 Vrms insulation voltage rating
Integrated NPN phototransistor output for digital signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

General-purpose digital signal isolation in industrial control systems
Power supply feedback loop isolation
Microcontroller interface circuits requiring galvanic separation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the obsolete lifecycle status. Confirm RoHS compliance details via official documentation before integration. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to maintain reliability during assembly processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a low-profile SMD optocoupler with high isolation voltage is required. Verify that the 80 V collector-emitter voltage and 80 mA output current meet circuit load requirements. Consider the 300% CTR specification for driving subsequent logic stages without additional amplification.

Transistor, Photovoltaic Output Optoisolators Part Context

The HMA121 belongs to the HMA121 series of full pitch mini-flat package optocouplers from onsemi. This series utilizes a gallium arsenide LED coupled to a silicon phototransistor. The family shares similar packaging dimensions and isolation characteristics, offering variations in current transfer ratio groups for different application needs.