BCM61B,215

Overview

The BCM61B,215 is an NPN/NPN matched double transistor manufactured by Nexperia. It utilizes a SOT143B small Surface-Mounted Device plastic package. The device features current gain matching and serves as the NPN equivalent to the PNP/PNP BCM62B. Key electrical parameters include a collector-emitter voltage (VCEO) of 45 V per transistor, a collector-base voltage (VCBO) of 50 V, and an emitter-base voltage (VEBO) of 6 V. Maximum continuous collector current is 100 mA per transistor, with peak current reaching 200 mA for single pulses up to 1 ms. Total power dissipation is limited to 390 mW at 25 °C ambient temperature. DC current gain (hFE) ranges from 200 to 450 at IC = 2 mA. Transition frequency (fT) is typically 250 MHz.

Feature Summary

• Current gain matching between transistors
• NPN/NPN matched double transistor configuration
• Small surface-mounted device plastic package

Applications

• Current mirror
• Differential amplifier

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when precise current gain matching between two NPN transistors is required in a compact footprint. It is suitable for designs needing low noise and stable biasing characteristics. Ensure thermal management accommodates the 390 mW total power dissipation limit. Consider the SOT143B pinout compatibility during PCB layout.

Part Context

The BCM61B is part of Nexperia's bipolar transistor portfolio, specifically designed as a matched pair. It is the NPN counterpart to the BCM62B (PNP/PNP). This series is engineered for applications requiring symmetry between transistors, such as analog signal processing circuits. The device is produced under the Nexperia brand following the separation from NXP Semiconductors.

Replacement Considerations

The BCV61 is listed as the general version of which the BCM61B is the matched variant. For direct replacement, verify if current gain matching is strictly necessary; if not, the BCV61 may suffice. No other specific substitute part numbers are documented in the provided datasheet.

FAQ

What is the marking code for the BCM61B?

The marking code is AC.

What is the maximum peak collector current?

The maximum peak collector current is 200 mA for single pulses with a duration tp ≤ 1 ms.

Is the BCM61B qualified for automotive applications?

The provided datasheet does not explicitly state AEC-Q qualification for the BCM61B. Other Nexperia matched pairs like the BCV62B are noted as AEC-Q101 qualified, but this specific data is absent for the BCM61B document.