BD438G

$0.29

Description：TRANS PNP 45V 4A TO-126
Series：-

SKU:c9e95480679b Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS PNP 45V 4A TO-126
Series：-
Mfr：onsemi
Package：Bulk,Bulk
Transistor Type：PNP
Current - Collector (Ic) (Max)：4:00 AM
Voltage - Collector Emitter Breakdown (Max)：45 V
Vce Saturation (Max) @ Ib, Ic：700mV @ 300mA, 3A
Current - Collector Cutoff (Max)：100µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：85 @ 500mA, 1V
Power - Max：36 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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BD438G

Overview

The onsemi BD438G is a plastic medium-power silicon PNP transistor housed in a TO-225 (CASE 77-09) package. It features a collector-emitter voltage (VCEO) of 45 Vdc and a collector-base voltage (VCBO) of 45 Vdc. The device supports a maximum continuous collector current (IC) of 4.0 Adc and a base current (IB) of 1.0 Adc. Total device dissipation is rated at 36 W at a case temperature of 25°C, with a thermal resistance junction-to-case of 3.5 °C/W. The emitter-base breakdown voltage (VEBO) is 5.0 Vdc. Operating and storage junction temperatures range from -55°C to +150°C.

Feature Summary

Complementary silicon power transistor designed for amplifier and switching applications
Pb-Free construction and RoHS compliant
High thermal efficiency with low junction-to-case thermal resistance

Applications

Medium power linear circuits
Switching applications
Audio amplifier output stages

Procurement Notes

Verify the specific part number against the official datasheet to ensure correct voltage rating and polarity. Confirm that the TO-225 package style matches the design requirements. Check for any recent product discontinuation notices or recommended new design alternatives provided by the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a 45V PNP power transistor with high current handling capabilities. Ensure adequate heat sinking is implemented to maintain the junction temperature within the specified operating range during high dissipation scenarios. Verify compatibility with complementary NPN types such as the BD437 for push-pull configurations.

Part Context

The BD438G belongs to a series of plastic medium-power silicon PNP transistors manufactured by onsemi. This series includes variants with different voltage ratings, specifically the BD436G, BD440G, and BD442G. These devices are intended for use in medium power linear and switching applications, offering a robust solution for general-purpose power amplification tasks.