Nexperia USA Inc. BCV61C,215

Overview

BCV61C,215 from Nexperia is an NPN general-purpose double transistor in SOT143B package, configured as a matched pair of monolithic NPN transistors for precision current mirroring and temperature-stable biasing. It delivers h_FE = 420–800 at I_C = 2 mA, V_CE = 5 V; V_CEsat ≤ 250 mV at I_C = 10 mA/I_B = 0.5 mA; and current matching ratio I_C1/I_E2 = 0.7–1.3 over −55 °C to +150 °C - used in analog front-ends of industrial sensor signal conditioners.

For engineers reviewing the BCV61C,215 datasheet, BCV61C,215 pinout, BCV61C,215 application, or BCV61C,215 equivalent, this device is selected for dual-transistor functions requiring matched gain, low saturation voltage, thermal tracking, and compact SMT integration in bias networks and current-source circuits.

Technical Context

The BCV61C,215 integrates two electrically isolated NPN transistors on a single die within a 4-pin SOT143B package, enabling precise current mirroring without external component matching. Its matched h_FE (420–800) and tight I_C1/I_E2 ratio (0.7–1.3) ensure stable operating points across temperature extremes.

Each transistor supports V_CEO = 30 V, I_C = 100 mA, and P_tot = 250 mW at T_amb ≤ 25 °C. The structure eliminates inter-device thermal gradients, critical for applications where working point independence from ambient drift is required.

Key Specifications

Pinout & Package

SOT143B is a 4-lead surface-mount plastic package (3.0 × 1.25 × 0.95 mm), optimized for thermal performance and board-space efficiency in high-density analog layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BCV61B,215 and MBT3904DW1T1G, the BCV61C,215 provides superior current matching and higher h_FE, directly enabling tighter mirror accuracy, lower base-drive overhead, and reduced thermal drift - making it optimal for precision analog current-mode circuits.

Availability

BCV61C,215 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, programmable current sources, and temperature-stable bias networks requiring stable component supply and long-term manufacturability.

Supply support for BCV61C,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 high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality standards.

The BCV61 series belongs to Nexperia's general-purpose bipolar transistor portfolio, engineered specifically for matched-pair analog functions including current mirroring, bias stabilization, and active load implementation in space-constrained SMT designs.

FAQ

What is the maximum allowable junction temperature for BCV61C,215?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation beyond this limit risks permanent degradation of h_FE and increased leakage. Derating is required above T_amb = 25 °C using R_th(j-a) = 500 K/W on FR4 PCB.

Can BCV61C,215 be used in a Widlar current source configuration?

Yes - its matched pair architecture, low V_CEsat, and high h_FE support Widlar implementations. Pin 4 (TR2 emitter) serves as the output node, while emitter degeneration resistors can be added externally to set precise current ratios per standard Widlar equations.

Is the base connection truly shared between both transistors?

Yes - Pin 1 is the common base terminal for both TR1 and TR2, confirmed in Table 2 "Pinning" and the graphic symbol. This shared base enables synchronized turn-on and inherent thermal tracking, distinguishing it from dual-transistor packages with independent bases.

How does BCV61C,215 differ from BCV62C?

BCV62C is the PNP complement of BCV61C, sharing identical SOT143B packaging and matching specifications but with opposite polarity. It is not interchangeable - BCV62C provides matched PNP current mirroring, used in complementary bias networks or level-shifting stages where sink capability is required.