Diodes Incorporated BCP6925TC

Overview

BCP6925TC from Nexperia is a PNP silicon planar medium-power transistor in SOT223 package, rated for -1 A continuous collector current, -20 V V_CEO, and 2 W power dissipation at T_amb = 25°C; used in audio frequency driver and output stages of consumer amplifiers and power management circuits.

For engineers reviewing the BCP6925TC datasheet, BCP6925TC pinout, BCP6925TC application, or BCP6925TC equivalent, key selection factors include verified V_CE(sat) ≤ −0.5 V at I_C = −1 A / I_B = −100 mA, h_FE range of 63–400 (depending on bias), and thermal capability up to +150°C junction temperature.

Technical Context

This discrete PNP bipolar junction transistor operates in linear or saturated switching mode with guaranteed breakdown voltages: V_(BR)CBO = −25 V, V_(BR)CEO = −20 V, and V_(BR)EBO = −5 V. Its f_T of 100 MHz at I_C = −100 mA enables stable AF amplification up to mid-band frequencies.

Designed for medium-power analog and switching applications, it supports pulsed I_CM = −2 A with 300 µs pulse width and ≤2% duty cycle, and exhibits low leakage: I_CBO ≤ −10 nA at V_CB = −25 V and T_amb = 150°C.

Key Specifications

Pinout & Package

SOT223 package: surface-mount, 4-pin (3 active + 1 thermal tab), with exposed emitter pad for enhanced thermal conduction. Pin 1 = Collector, Pin 2 = Base, Pin 3 = Emitter, Pin 4 = Emitter (thermal tab).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium-power transistor applications.

Compared with BCP6925TC, BCP56-16 offers higher voltage safety margin but narrower h_FE range, while ZTX753 trades SMT thermal efficiency for TO-92 ease-of-use and higher f_T-neither is pin-compatible, and all require layout adaptation.

Availability

BCP6925TC is available at Aetrix Electronics and suitable for audio frequency drivers, DC-DC converter switches, linear voltage regulator pass elements, and industrial sensor interfaces requiring stable component supply and SMT manufacturability.

Supply support for BCP6925TC 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 discrete and logic devices for mass-market electronics.

BCP6925TC belongs to Nexperia's medium-power bipolar transistor product line, engineered for cost-effective, thermally robust AF and power switching in consumer, industrial, and automotive applications.

FAQ

What is the maximum allowable junction temperature for BCP6925TC?

The absolute maximum junction temperature is +150°C, and the storage temperature range matches this. Derating begins at T_amb > 25°C per the thermal resistance curve in the official datasheet; R_th(j-a) is 62.5 K/W for standard SOT223 mounting on 1 cm² copper.

Is BCP6925TC suitable for switching 24 V loads?

No-its V_CEO is rated at −20 V, making it unsuitable for direct 24 V rail switching. It may be used in lower-voltage sections (e.g., 12 V or less) or with clamping networks, but exceeding −20 V risks avalanche failure even briefly.

Does BCP6925TC have a built-in base-emitter resistor?

No, BCP6925TC is a standard three-terminal PNP bipolar transistor with no integrated resistors. External base biasing components must be provided per application requirements, including current-limiting resistors for digital drive.

How does the SOT223 thermal tab affect PCB layout?

The exposed emitter tab (Pin 4) must be soldered to a minimum 1 cm² copper pour connected to the emitter net. This reduces R_th(j-a) by ~30% versus standard SOT223 mounting and prevents localized overheating during sustained −1 A operation.