BC817-25QBZ

Overview

The Nexperia BC817-25QBZ is an NPN general-purpose transistor housed in a DFN1110D-3 (SOT8015) leadless surface-mounted package. It features a collector-emitter voltage of 45 V and a continuous collector current of 500 mA, with a peak pulse current capability of 1 A. The device offers a DC current gain range of 160 to 400 at 100 mA. Thermal resistance from junction to ambient is rated at 272 K/W in free air. The component operates within a temperature range of -55 °C to 150 °C and is qualified under the AEC-Q101 automotive standard.

Feature Summary

• High power dissipation capability suitable for thermal management
• Side-wettable flanks facilitate Automatic Optical Inspection of solder joints
• Ultra-thin profile with a low package height of 0.5 mm
• Automotive Electronics Council qualification for reliability

Applications

• General-purpose switching circuits
• Signal amplification stages
• Space-restricted electronic designs

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel packaging configuration. Confirm that the DFN1110D-3 footprint aligns with the intended PCB layout, particularly regarding side-wettable flank soldering requirements. Ensure compliance with RoHS directives and confirm the AEC-Q101 qualification status meets project specifications before finalizing procurement orders.

Selection Notes

Select this component when a compact form factor is critical due to its ultra-small DFN1110D-3 package dimensions. Choose the BC817-25QB variant specifically for applications requiring a moderate DC current gain between 160 and 400. Consider this part for designs needing robust thermal performance relative to its small physical size, while ensuring the circuit design accommodates the 45 V maximum collector-emitter voltage rating.

Part Context

This device belongs to the BC817QB series, which provides three distinct current gain options: 16, 25, and 40. All variants share identical electrical ratings and package dimensions but differ in their hFE ranges. The PNP complement for this series is the BC807-25QB. The series utilizes a leadless plastic thermal-enhanced package designed for high-volume automated assembly processes.

Replacement Considerations

Direct replacements include other BC817-25 variants in SOT23 packages, such as BC817-25,215 or BC817K-25R, provided the PCB allows for larger footprints. For space-constrained designs requiring identical package compatibility, verify availability of other manufacturers' DFN1110D-3 NPN transistors with matching 45V and 500mA ratings.