BCV61B,235

Overview

The BCV61B,235 is an NPN general-purpose double transistor housed in a SOT143B surface-mounted plastic package. It features matched pairs with a DC current gain (hFE) range of 200 to 450 at VCE=5V and IC=2mA. The device supports a maximum collector current of 100 mA and peak currents of 200 mA. Voltage ratings include 30 V for both collector-base (VCBO) and collector-emitter (VCEO), with an emitter-base voltage limit of 6 V. Total power dissipation is rated at 250 mW at 25 °C ambient temperature.

Feature Summary

• Matched pairs ensure consistent current matching between transistors TR1 and TR2
• Low current capability suitable for small signal applications
• Low voltage operation optimized for general-purpose switching

Applications

• Applications requiring working points independent of temperature
• Current mirror circuits

Procurement Notes

Verify the specific ordering suffix matches the required production origin and packaging configuration. Confirm that the hFE binning aligns with circuit requirements, as the BCV61B variant specifies a gain range of 200 to 450. Ensure compatibility with SOT143B footprint dimensions during PCB layout verification.

Selection Notes

Select this component when precise current matching between two NPN transistors is required within a single package. The BCV61B offers a mid-range current gain compared to other variants in the BCV61 family. Consider the thermal resistance characteristics and total power dissipation limits when designing for high ambient temperatures or dense board layouts.

Part Context

This part belongs to the Nexperia BCV61 series of NPN general-purpose double transistors. It serves as the matched pair counterpart to the PNP BCV62 series. The device is designed for low-power analog and digital applications where space efficiency and parameter matching are critical design constraints.

Replacement Considerations

The BCV62B is the direct PNP complement within the same package and feature set. Other BCV61 variants (BCV61A, BCV61C) share the package but differ in current gain specifications.