BD237STU

Description：TRANS NPN 80V 2A TO-126-3
Series：-

SKU:116ed3b42f29 Category: Single Bipolar Transistors Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：TRANS NPN 80V 2A TO-126-3
Series：-
Mfr：onsemi
Package：Tube
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：150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-225AA, TO-126-3
Supplier Device Package：TO-126-3
Grade：-
Qualification：-

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BD237STU

Overview

The BD237STU is a plastic medium power NPN bipolar transistor manufactured by onsemi. It is designed for use in audio amplifiers and drivers utilizing complementary or quasi-complementary circuits. The device features a DC current gain (hFE) of at least 40 at an collector current of 0.15 Adc. It includes epoxy molding that meets UL 94 V0 flammability standards. Electrostatic discharge ratings include Human Body Model 3B and Machine Model C with voltages exceeding 8000 V and 400 V respectively.

Feature Summary

Designed for 5.0 to 10 W audio amplifier applications
Epoxy case meets UL 94 V0 flammability rating
High electrostatic discharge protection capability

Applications

Audio amplifiers
Driver circuits
Complementary circuit designs
Quasi-complementary circuit designs

Procurement Notes

Verify the specific package suffix 'STU' against official onsemi documentation, as datasheets may reference generic BD237 variants or different packaging options like 'G'. Confirm lead times and availability directly with authorized distributors, as these details are not contained within the component specification sheet. Ensure the ordering part number matches the exact mechanical and electrical requirements for your design.

Selection Notes

Select this component for medium-power NPN switching or amplification tasks where high reliability and ESD protection are required. The specified hFE minimum ensures adequate gain for driver stages. Consider thermal management solutions appropriate for the intended power dissipation levels in audio applications. Verify compatibility with complementary PNP transistors if used in push-pull configurations.

Part Context

This component belongs to the family of plastic medium power bipolar transistors from onsemi. These devices are engineered for robust performance in consumer electronics and audio equipment. The BD237 series provides a balance of current handling and voltage blocking capabilities suitable for general-purpose power switching and linear amplification roles in compact form factors.