BD679AG

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

SKU:899c81080cc9 Category: Single Bipolar Transistors 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

Product Detailed Parameters

Description：TRANS NPN DARL 80V 4A TO-126
Series：-
Mfr：onsemi
Package：Bulk
Transistor Type：NPN - Darlington
Current - Collector (Ic) (Max)：4:00 AM
Voltage - Collector Emitter Breakdown (Max)：80 V
Vce Saturation (Max) @ Ib, Ic：2.8V @ 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：-55°C ~ 150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：TO-126
Grade：-
Qualification：-

Download product information

BD679AG

Overview

The BD679AG is an NPN power Darlington transistor manufactured by onsemi. It utilizes planar base island technology with a monolithic Darlington configuration and features an integrated antiparallel collector-emitter diode. The device supports a maximum continuous collector current of 4 A and a collector-emitter voltage of 80 V. It operates within a temperature range of -65 °C to +150 °C and is housed in a TO-220 package.

Feature Summary

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

Applications

General-purpose switching applications
Power amplifier circuits
Motor control systems

Procurement Notes

Verify the manufacturer marking and date code against official onsemi documentation. Confirm the package type matches the required thermal and mechanical specifications. Ensure the component meets the specific electrical tolerances defined in the datasheet for your application design.

Selection Notes

Select this component when high current gain and robust switching capability are required. The integrated diode simplifies circuit design for inductive loads. Consider the thermal management requirements associated with the TO-220 package and the specified operating temperature range.

Part Context

This part belongs to onsemi's portfolio of Darlington transistors, which offer high current gain and simplified drive requirements compared to standard bipolar junction transistors. The BD679 series is designed for applications requiring reliable performance in power handling scenarios.

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

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

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.