BCX54-10,115

Overview

The Nexperia BCX54-10,115 is an NPN medium power transistor housed in a SOT89 (SC-62) surface-mount package. It supports a collector current of 1 A and withstands a collector-emitter voltage of 45 V. The device offers a DC current gain range of 63 to 160 at VCE = 2 V and IC = 150 mA. It features a peak collector current capability of 2 A for single pulses up to 1 ms. Thermal resistance from junction to ambient is 250 K/W in free air.

Feature Summary

• High collector current capability for both continuous and pulsed operation
• Three distinct current gain selections available within the series
• High power dissipation capability with exposed die pad for heat transfer

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 gain binning, as the BCX54-10 variant specifies a defined hFE range. Confirm the package type corresponds to the SOT89 footprint requirements for your PCB layout. Ensure design parameters remain within the absolute maximum ratings to prevent permanent damage. Check the most recent datasheet revision for any updates to thermal characteristics or marking codes before finalizing procurement.

Selection Notes

Select this component when a 45 V NPN transistor with 1 A continuous current handling is required in a compact SMD form factor. The BCX54-10 designation indicates a specific DC current gain bin (63 to 160), which differs from other variants in the series. Consider the thermal resistance values provided for different PCB mounting pad sizes to ensure adequate heat dissipation for the intended power load.

Part Context

This part belongs to the BCX54 series of NPN medium power transistors manufactured by Nexperia. The series includes variants with different current gain specifications, such as the standard BCX54 and the BCX54-16. All variants share the same SOT89 package and basic electrical limits but are distinguished by their hFE ranges and corresponding marking codes on the device body.

Replacement Considerations

Direct substitutes within the same family include the BCX54 and BCX54-16, though their current gain bins differ. For pin-compatible replacements with similar electrical characteristics, verify the collector current, voltage ratings, and package dimensions of alternative manufacturers' parts to ensure functional equivalence.