BD679A

$0.88

Description：TRANS NPN DARL 80V 4A SOT-32-3
Series：-

SKU:d0ec66347004 Category: Single Bipolar Transistors Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：TRANS NPN DARL 80V 4A SOT-32-3
Series：-
Mfr：STMicroelectronics
Package：Tube
Transistor Type：NPN - Darlington
Current - Collector (Ic) (Max)：4:00 AM
Voltage - Collector Emitter Breakdown (Max)：80 V
Vce Saturation (Max) @ Ib, Ic：2.8V @ 40mA, 2A
Current - Collector Cutoff (Max)：500µA
DC Current Gain (hFE) (Min) @ Ic, Vce：750 @ 2A, 3V
Power - Max：40 W
Frequency - Transition：-
Operating Temperature：150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：SOT-32-3
Grade：-
Qualification：-

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BD679A

Overview

The BD679A is an active NPN power Darlington transistor manufactured by STMicroelectronics. It utilizes planar base island technology with a monolithic Darlington configuration. The device features good hFE linearity and high fT frequency performance. It includes an integrated antiparallel collector-emitter diode within the structure. The component is available in an SOT-32 package and is classified under the Industrial grade. It complies with Ecopack1 standards.

Feature Summary

Monolithic Darlington configuration with integrated antiparallel collector-emitter diode
Good hFE linearity
High fT frequency

Applications

Procurement Notes

Verify the specific part number BD679A against official STMicroelectronics documentation to confirm current production status and exact package details. Ensure compatibility with industrial grade requirements. Check for any specific ordering suffixes that may affect pinout or electrical characteristics. Confirm RoHS compliance status as listed in the most recent datasheet.

Selection Notes

Select this component when a high-gain NPN power transistor with integrated protection diode is required. The monolithic construction offers improved reliability compared to discrete solutions. Consider the SOT-32 package constraints for thermal management and board space. Verify that the high fT frequency meets the specific application bandwidth needs.

Part Context

The BD679A belongs to STMicroelectronics' portfolio of Darlington transistors, which offer voltage ranges up to 400 V in both NPN and PNP polarities. This specific model represents the NPN variant designed for power applications requiring high current gain and linear performance characteristics.