BC68-25PASX

Overview

The BC68-25PASX is an NPN medium power transistor from the BC68PAS series, rated for a collector-emitter voltage of 20 V and a continuous collector current of 2 A. It supports a peak collector current of 3 A with a pulse width up to 1 ms. The device features two DC current gain selections: standard BC68PAS ranges from 85 to 375, while the BC68-25PAS variant offers a higher range of 160 to 375 at VCE = 1 V and IC = 500 mA. Encapsulated in an ultra-thin DFN2020D-3 (SOT1061D) leadless SMD plastic package, it includes visible solderable side pads and an exposed heatsink for thermal management.

Feature Summary

• High collector current capability supporting both continuous and pulsed operation
• Two distinct current gain selections available within the series
• Leadless very small SMD plastic package with medium power capability
• Exposed heatsink designed for excellent thermal and electrical conductivity

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required current gain bin, as the BC68-25PAS designation indicates a specific hFE range compared to the general BC68PAS. Confirm the package type is DFN2020D-3 (SOT1061D) with side-wettable flanks. Ensure the design accounts for the non-automotive qualification status of this revision, as automotive-grade alternatives require different part numbers. Check thermal resistance values against the specific PCB copper layout intended for the application.

Selection Notes

Select the BC68-25PAS variant when a minimum DC current gain of 160 is required at 500 mA, whereas the standard BC68PAS suffices for gains starting at 85. Consider the DFN2020D-3 package dimensions (2 x 2 x 0.65 mm) for space-constrained designs requiring medium power dissipation. Evaluate the thermal resistance requirements based on the target PCB layer count and copper area, as junction-to-ambient resistance varies significantly with mounting conditions.

Part Context

This component belongs to the Nexperia BC68PAS series of NPN medium power transistors. It serves as the NPN complement to the BC69PAS PNP series. The series utilizes an ultra-thin DFN2020D-3 leadless package, distinguishing it from older plastic packages like SOT89 or SOT23. The product data sheet revision history notes a change from automotive qualification to non-automotive qualification in version 2.

Replacement Considerations

The official PNP complement is the BC69PAS series. For direct pin-compatible replacements within the same family, verify the specific current gain bin requirement (BC68PAS vs BC68-25PAS). No other cross-manufacturer substitutes are confirmed in the provided documentation.

FAQ

What is the difference between BC68PAS and BC68-25PAS?

The primary difference is the DC current gain (hFE) selection. The BC68PAS has a gain range of 85 to 375, while the BC68-25PAS has a higher gain range of 160 to 375, both measured at VCE = 1 V and IC = 500 mA.

Is the BC68-25PASX automotive qualified?

No. According to the product data sheet revision history, this specific series is not automotive qualified. Customers requiring automotive-grade components should consult Nexperia for alternative -Q product numbers.

What is the marking code for the BC68-25PAS?

The marking code for the BC68-25PAS type number is BZ. The standard BC68PAS uses the marking code BY.