BD681

$0.29

Description：TRANS NPN DARL 100V 4A TO-126
Series：-

SKU:91b334a2f9ba Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN DARL 100V 4A TO-126
Series：-
Mfr：onsemi
Package：Bulk
Transistor Type：NPN - Darlington
Current - Collector (Ic) (Max)：4:00 AM
Voltage - Collector Emitter Breakdown (Max)：100 V
Vce Saturation (Max) @ Ib, Ic：2.5V @ 30mA, 1.5A
Current - Collector Cutoff (Max)：500µA
DC Current Gain (hFE) (Min) @ Ic, Vce：750 @ 1.5A, 3V
Power - Max：40 W
Frequency - Transition：-
Operating Temperature：-55°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：TO-126
Grade：-
Qualification：-

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BD681

Overview

The BD681G is a single NPN power Darlington transistor manufactured by onsemi using planar base island technology. It features a monolithic configuration with an integrated antiparallel collector-emitter diode. Key electrical ratings include a maximum collector-emitter voltage (VCEO) of 100 V, a maximum DC collector current of 4 A, and a minimum DC current gain (hFE) of 750. The device operates within a temperature range of -55°C to +150°C and is housed in a TO-225AA package for through-hole mounting.

Feature Summary

Monolithic Darlington configuration with integrated antiparallel collector-emitter diode
High transition frequency (fT) performance
Good hFE linearity characteristics

Applications

High-speed switching applications
Power amplifier circuits
Motor control systems

Procurement Notes

Verify the specific suffix 'G' against the manufacturer's datasheet to confirm RoHS compliance status and exact pinout configuration. Ensure the ordering part number matches the required package type and thermal specifications for the intended application environment.

Selection Notes

Select this component for designs requiring high current gain and robust switching capabilities at moderate voltages. Consider the TO-225AA package constraints for thermal management and PCB layout. Verify that the 4 A current rating and 100 V voltage limits align with the circuit's peak operating conditions.

Part Context

The BD681 belongs to onsemi's portfolio of bipolar power transistors. It utilizes planar base island technology to achieve reliable performance in power switching roles. This series offers both NPN and PNP options with voltage ranges extending up to 400 V, catering to diverse industrial and consumer electronics needs.