BD237

Description：TRANS NPN 80V 2A TO-126
Series：-

SKU:1df833665d97 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 80V 2A TO-126
Series：-
Mfr：onsemi
Package：Bulk
Transistor Type：NPN
Current - Collector (Ic) (Max)：2:00 AM
Voltage - Collector Emitter Breakdown (Max)：80 V
Vce Saturation (Max) @ Ib, Ic：600mV @ 100mA, 1A
Current - Collector Cutoff (Max)：100µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：25 @ 1A, 2V
Power - Max：25 W
Frequency - Transition：3MHz
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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BD237

Overview

The BD237G is an NPN plastic medium power bipolar junction transistor manufactured by onsemi. It features a collector-emitter sustaining voltage of 80 Vdc and a collector-base voltage of 100 Vdc. The device supports a continuous collector current of 2.0 Adc with a total device dissipation of 25 W at 25°C case temperature. Electrical characteristics include a minimum DC current gain of 40 at 0.15 Adc and 25 at 1.0 Adc, both measured at 2.0 Vce. The transition frequency is specified at 3.0 MHz under standard test conditions.

Feature Summary

Designed for use in audio amplifiers and drivers utilizing complementary or quasi-complementary circuits
High DC current gain performance across varying collector currents
Epoxy material meets UL 94 V0 flammability rating

Applications

Audio amplifier circuits
Driver stages in complementary configurations
Quasi-complementary circuit designs

Procurement Notes

Verify the specific ordering suffix to confirm package type and compliance status. Check the manufacturer's official documentation for current production status, as some variants may be discontinued. Confirm thermal resistance values match the intended mounting method and heat sink requirements before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring medium power handling within audio signal paths. Ensure the operating junction temperature remains within the specified -55°C to +150°C range. Verify that the required DC current gain meets the minimum thresholds defined in the electrical characteristics table for the specific load current conditions.

Part Context

This device belongs to the BD237 series of plastic medium power bipolar transistors produced by onsemi. The series includes complementary PNP counterparts such as the BD234G. These components are engineered specifically for medium-power audio applications where high current gain and reliable thermal performance are necessary for stable operation in amplifier stages.

Replacement Considerations

Consult the manufacturer's discontinuation notice for alternative recommendations if the BD237G is no longer recommended for new designs. Verify pinout compatibility and electrical parameters when considering cross-references from other manufacturers.

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.