BD679G

$0.31

Description：TRANS NPN DARL 80V 4A TO-126
Series：-

SKU:c762277be436 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN DARL 80V 4A TO-126
Series：-
Mfr：onsemi
Package：Bulk,Bulk
Transistor Type：NPN - Darlington
Current - Collector (Ic) (Max)：4:00 AM
Voltage - Collector Emitter Breakdown (Max)：80 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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BD679G

Overview

The BD679G is a plastic medium-power silicon NPN Darlington transistor manufactured by onsemi. It features a monolithic construction with an integrated antiparallel collector-emitter diode. The device supports a maximum collector-emitter voltage of 80 Vdc and a continuous collector current of 4.0 Adc. It offers a minimum DC current gain of 750 at specified test conditions. The component operates within a junction temperature range of -55 to +150 °C and utilizes a TO-225 package.

Feature Summary

Monolithic Darlington configuration with integrated antiparallel collector-emitter diode
High DC current gain for efficient amplification
Good hFE linearity across operating ranges

Applications

Output devices in complementary general-purpose amplifier applications

Procurement Notes

Verify the specific ordering suffix and revision status before procurement, as datasheets indicate potential discontinuation or updates for certain variants in this series. Confirm RoHS compliance and Pb-Free packaging requirements align with project specifications. Ensure thermal management design accounts for the specified power dissipation derating curves to maintain reliability under operational loads.

Selection Notes

Select the BD679G when an 80 V collector-emitter voltage rating and 4 A continuous current capability are required. Consider its high DC current gain for driving loads with minimal base drive current. Evaluate the TO-225 package style against available board space and thermal constraints. Compare against complementary PNP counterparts if designing full bridge or push-pull amplifier stages.

Part Context

This component belongs to the BD675/BD677/BD679/BD681 series of plastic medium-power silicon NPN Darlingtons. These devices share similar monolithic construction techniques but differ primarily in their voltage ratings, which range from 45 V to 100 V. The series is designed for general-purpose amplification tasks requiring robust current handling capabilities.

Replacement Considerations

The BD679G is equivalent to the MJE 802. Designers may consider the MJE 802 as a direct substitute part number based on official equivalence documentation.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.