HMHA281R4

onsemi

-55℃~+100℃ 1.3V 210mW 3.75kV 3us@2mA,100Ω 3us@2mA,100Ω 400mV@2.4mA,8mA 50% 50mA 50mA 600% 6V 80V DC Phototransistor - Transistor, Photovoltaic Output Optoisolators ROHS

Extended

Datasheetonsemi/HMHA281R4

Category: Transistor, Photovoltaic Output Optoisolators
Pins: 4

Overview

The HMHA281R4 is a transistor, Photovoltaic Output Optoisolator made by onsemi with 4 pins. -55℃~+100℃ 1.3V 210mW 3.75kV 3us@2mA,100Ω 3us@2mA,100Ω 400mV@2.4mA,8mA 50% 50mA 50mA 600% 6V 80V DC Phototransistor - Transistor, Photovoltaic Output Optoisolators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:BL3H7B, from EasyEDA) and its footprint (EasyEDA_Cloud:MFP-4_L4.4-W2.5-P1.27-LS7.8-BR, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C903773).

Symbol

EasyEDA_Cloud:BL3H7BFrom EasyEDA

Footprint

EasyEDA_Cloud:MFP-4_L4.4-W2.5-P1.27-LS7.8-BRFrom EasyEDA

Parameters

Current Transfer Ratio (CTR) Maximum/Saturation Value: 600%
Current Transfer Ratio (CTR) Minimum: 50%
Fall time: 3us@2mA,100Ω
Forward Current(If): 50mA
Input type: DC
Isolation Voltage(Vrms): 3.75kV
Load Voltage: 80V
Operating Temperature: -55℃~+100℃
Output Current: 50mA
Output Type: Phototransistor
Reverse Voltage: 6V
Rise time: 3us@2mA,100Ω
Total Power Dissipation(Pd): 210mW
Vce Saturation(VCE(sat)): 400mV@2.4mA,8mA
Voltage - Forward(Vf): 1.3V

Order codes

HMHA281R4LCSC C903773

Pinout

The pins of the HMHA281R4
Pin	Name	Type
1	AN	Unspecified
2	CAT	Unspecified
3	EM	Unspecified
4	COL	Unspecified

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A picture

<img src="https://pcbkit.io/embed/parts/onsemi/HMHA281R4.jpg" alt="HMHA281R4" width="1200" height="900">

A picture that opens the part, for a README

[![HMHA281R4](https://pcbkit.io/embed/parts/onsemi/HMHA281R4.jpg?size=s)](https://pcbkit.io/parts/onsemi/HMHA281R4)

Questions

Is there a KiCad symbol and footprint for the HMHA281R4?

Yes. The symbol is EasyEDA_Cloud:BL3H7B and the footprint EasyEDA_Cloud:MFP-4_L4.4-W2.5-P1.27-LS7.8-BR, both drawn on this page. PCBKit places them on a board for you when you design with it.

Where is the HMHA281R4 datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the HMHA281R4?

JLCPCB lists it as part C903773, with 0 in stock; the sellers' links on this page open their listings.

What can replace the HMHA281R4?

Parts like it in the library: the HMHAA280R2V by onsemi, the HMHA2801BR2 by onsemi, the HMHA281R4V by onsemi and the HMHA2801R2V by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.