BD680AG

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

SKU:a79f3d650d83 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS PNP DARL 80V 4A TO-126
Series：-
Mfr：onsemi
Package：Bulk
Transistor Type：PNP - 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：-

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BD680AG

Overview

The BD680AG is a plastic, medium-power silicon PNP Darlington transistor manufactured by onsemi. It features monolithic construction with high DC current gain and an integrated antiparallel collector-emitter diode. The device operates within a collector-emitter voltage range of 80 Vdc and supports a continuous collector current of 4.0 Adc. Total device dissipation reaches 40 W at a case temperature of 25 °C, with a junction-to-case thermal resistance of 3.13 °C/W. The operating and storage junction temperature range spans from −55 to +150 °C.

Feature Summary

Monolithic Darlington configuration with integrated antiparallel collector-emitter diode
High DC current gain suitable for general-purpose amplifier applications
Complementary pairing available with NPN Darlington transistors

Applications

Output devices in complementary general-purpose amplifier circuits
Power switching applications requiring high current gain
Driver stages in audio or signal processing equipment

Procurement Notes

Verify the specific ordering suffix 'AG' against the manufacturer's current product status documentation. Confirm that the TO-225 package style matches the required mechanical constraints. Ensure compliance with RoHS standards if lead-free assembly is mandated. Cross-reference the datasheet revision number to validate electrical characteristics against the intended design specifications.

Selection Notes

Select this component when a PNP Darlington transistor with an 80 V collector-emitter breakdown voltage is required. The BD680AG offers a minimum DC current gain of 750 under specified test conditions. Consider the thermal management requirements given the 40 W power dissipation capability at 25 °C case temperature. Verify compatibility with complementary NPN devices in push-pull configurations.

Part Context

The BD680AG belongs to the BD676/BD678/BD680/BD682 series of plastic medium-power silicon PNP Darlingtons. This series provides complementary solutions with NPN variants like the BD679A. The devices are designed for robust performance in amplifier and switching roles, featuring planar base island technology for improved linearity and frequency response.

Replacement Considerations

The BD680AG is functionally equivalent to the MJE703 transistor. Designers may consider the MJE703 as a direct substitute, provided pinout and package dimensions align. Verify that alternative sources maintain the same electrical parameters and thermal characteristics.

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.