BCX54-16,135

Overview

The BCX54-16,135 is an NPN medium power transistor from the Nexperia BCX54 series, housed in a SOT89 (SC-62) flat lead Surface-Mounted Device plastic package. It supports a collector-emitter voltage of 45 V and a continuous collector current of 1 A, with a peak collector current capability of 2 A for single pulses up to 1 ms. The device offers three current gain selections; the -16 variant provides a DC current gain range of 100 to 250 at VCE = 2 V and IC = 150 mA. Total power dissipation reaches 1.35 W when mounted on an FR4 PCB with a 6 cm² collector pad.

Feature Summary

• High collector current capability for both continuous and pulsed operations
• Three distinct current gain selections available within the series
• High power dissipation capability facilitated by exposed die pad design

Applications

• Linear voltage regulators
• MOSFET drivers
• Low-side switches
• Battery-driven devices
• Power management circuits
• Amplifiers

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as standard distribution may vary between tape-and-reel or cut tape configurations. Confirm the revision status against the latest Nexperia datasheet to ensure compliance with current product specifications. Ensure the procurement channel sources genuine components to maintain reliability standards for linear regulator and switching applications.

Selection Notes

Select the BCX54-16 variant specifically when a higher DC current gain range of 100 to 250 is required compared to other series options. Evaluate thermal management requirements based on the target power dissipation level and the available copper area on the printed-circuit board. Consider the transition frequency characteristics if high-speed switching performance is critical for the intended amplifier or driver application.

Part Context

This component belongs to the BCX54 series of NPN medium power transistors manufactured by Nexperia. The series includes variants with different current gain ranges, such as the BCX54-10 and standard BCX54. All members share the same SOT89 package and fundamental electrical ratings, differing primarily in their hFE classification to suit various amplification and switching needs.

Replacement Considerations

Direct functional substitutes within the same family include the BCX54-10 and the generic BCX54, which share identical pinouts and maximum ratings but offer different current gain ranges.