BD438TG

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

SKU:ce61c07a0bfe 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：Tube
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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BD438TG

Overview

The BD438TG is a plastic medium-power silicon PNP transistor manufactured by onsemi. It features a collector-emitter voltage (VCEO) of 45 Vdc and a continuous collector current (IC) of 4.0 Adc. The device operates within a junction temperature range of -55 to +150 °C and has a total device dissipation of 36 W at 25°C case temperature. It utilizes the TO-225 package with Style 1 pin configuration: Pin 1 is Emitter, Pins 2 and 4 are Collector, and Pin 3 is Base.

Feature Summary

Designed for amplifier and switching applications
Complementary types include BD437 and BD441

Applications

Amplifier circuits
Switching applications

Procurement Notes

Verify that the specific part number matches the required voltage rating and package style. Confirm RoHS compliance status if environmental regulations apply to your design. Check for any discontinuation notices or recommended new design alternatives from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a 45 V PNP transistor with 4 A current capability is needed. Ensure thermal management meets the 36 W dissipation requirement at the expected operating temperature. Verify compatibility with complementary NPN devices like the BD437 for push-pull configurations.

Part Context

This device belongs to a series of plastic, medium-power silicon PNP transistors including BD436G, BD438G, BD440G, and BD442G. These components share similar packaging and application profiles but differ in their voltage ratings. The BD438 specifically provides a 45 V rating, positioned between the lower-voltage BD436 and higher-voltage BD440 models.