Nexperia USA Inc. BCV61,215

Overview

BCV61,215 from Nexperia is an NPN general-purpose double transistor in SOT143B package, configured as a matched pair of monolithic NPN transistors (TR1 and TR2) for precision current mirroring and temperature-stable biasing. It supports ≤30 V VCEO, ≤100 mA IC per transistor, and delivers hFE = 110–800 at IC = 2 mA, with IC1/IE2 current matching ratio of 0.7–1.3 at 25 °C - used in analog front-ends and reference current generation.

For engineers reviewing the BCV61,215 datasheet, BCV61,215 pinout, BCV61,215 application, or BCV61,215 equivalent, this device is selected for dual-transistor functions requiring matched gain, low thermal drift, and compact SMD integration in current-sensing, bias networks, and differential amplifiers.

Technical Context

The BCV61,215 integrates two electrically isolated NPN transistors on a single die, sharing thermal coupling to minimize ΔT between TR1 and TR2 - enabling stable current mirror operation across −55 °C to +150 °C ambient. Its matched hFE and VBE characteristics reduce offset errors in precision analog circuits without external trimming.

Each transistor exhibits VCEsat ≤ 250 mV at IC = 10 mA/IB = 0.5 mA and fT ≥ 100 MHz at VCE = 5 V/IC = 10 mA, supporting moderate-speed switching and linear amplification. The absence of emitter resistors allows direct use in classic Wilson or Widlar configurations.

Key Specifications

Pinout & Package

SOT143B is a 4-pin surface-mount plastic package (3.0 × 1.4 mm footprint, 1.1 mm height) with gull-wing leads optimized for reflow soldering and high-density layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-NPN current mirror applications.

Compared with BCV61,215, BCV62,215 enables complementary current mirroring in mixed-polarity designs, while MBT3904DW1T1G trades guaranteed matching for wider voltage headroom - making BCV61,215 optimal for precision low-voltage analog references.

Availability

BCV61,215 is available at Aetrix Electronics and suitable for current mirror circuits, analog bias networks, differential pair drivers, and temperature-independent references requiring stable component supply and traceable sourcing.

Supply support for BCV61,215 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer applications.

The BCV61,215 belongs to Nexperia's general-purpose bipolar transistor family, engineered specifically for matched-pair analog functions including current mirroring, bias stabilization, and temperature-compensated reference generation.

FAQ

What is the maximum allowable power dissipation for BCV61,215?

The BCV61,215 has a total power dissipation limit of 250 mW at Tamb ≤ 25 °C when mounted on FR4 PCB. Derating is required above 25 °C at 2.0 mW/°C based on Rth(j-a) = 500 K/W. Exceeding this limit risks thermal runaway due to positive temperature coefficient of hFE.

Can BCV61,215 be used in place of discrete BC847BL transistors for current mirroring?

Yes, but only if matching performance is critical: BCV61,215 guarantees IC1/IE2 ratio of 0.7–1.3 at 25 °C, whereas two discrete BC847BLs typically show ±20% hFE mismatch and no thermal coupling. For precision applications, BCV61,215 reduces design margin requirements and eliminates manual binning.

Does BCV61,215 include built-in emitter resistors?

No - BCV61,215 has no integrated emitter resistors. Its pinout and electrical characteristics assume direct emitter connection, enabling classic Wilson, Widlar, and cascode mirror implementations without parasitic resistance. External resistors must be added separately if degeneration is required.

How does the BCV61,215 pinout differ from BCV61A/B/C variants?

Pinout is identical across BCV61, BCV61A, BCV61B, and BCV61C - all use SOT143B with pins 1–4 assigned to collector TR2/base TR1&TR2, collector TR1, emitter TR1, and emitter TR2. Differences lie solely in hFE grading: BCV61 (110–800), BCV61A (110–220), BCV61B (200–450), BCV61C (420–800).