BC807-25W

BC807-25W is a PNP general‑purpose transistor in the BC807 family (complement to BC817). It’s used for small‑signal amplification and switching in low‑power circuits.
Key points:
- Package: common through‑hole (TO‑92) variant; other packaging exists from some suppliers.
- Roles: driver, buffer, switch, regulator stages, audio preamps, etc.
- Typical ratings (variant dependent): Vceo around 45 V; Ic up to ≈0.5 A; power dissipation of a few hundred milliwatts in a TO‑92 package.
- Gain: hFE varies widely with Ic and part grade; design around a broad gain range and verify from the datasheet.
- Suffix note: “-25W” identifies a specific grade/variant from a manufacturer; it does not imply 25 W dissipation. Always check the exact datasheet for your supplier and package.
For precise parameters, consult the datasheet for the exact BC807-25W part you’re using.

Common equivalents to a BC807-25 (PNP general-purpose transistor) include: BC857-25 (SMD counterpart), BC557-25, BC327-25 (higher current), 2N2907A and 2N3906. Verify pinout, Vce, Ic and hFE ranges before substituting, as ratings and packages differ.

BC807-25W is a PNP general‑purpose transistor (complement of BC817). Key features:
- Type: PNP transistor for amplification and switching
- Vceo: about 45 V (maximum)
- Ic: up to ~0.5 A (typical ceiling around 500 mA)
- Power dissipation: roughly 0.4–0.6 W (TO‑92 package)
- Vebo: around 5 V
- Gain (hFE): wide range, typically ~110–800 depending on group and operating point
- Low noise suitable for general analog use
- Packages: commonly TO‑92 through‑hole; SMT variants (e.g., SOT‑23) available from manufacturers
Note: exact specs (especially hFE and package) can vary by manufacturer and the “-25W” suffix, so check the specific datasheet for your device.

- Pin count: 3 (TO-92 package)
- Type/Function: PNP general-purpose bipolar transistor used for switching and amplification
- Pinout (flat face toward you): Pin 1 Emitter, Pin 2 Base, Pin 3 Collector (E-B-C)

Manufacturer: Nexperia.
What kind of company: A Dutch multinational specializing in discrete semiconductors (transistors, diodes, and related devices) and other passive components for electronics.

BC807-25W is a general‑purpose PNP transistor for low‑power switching and amplification. Typical application areas include:
- High‑side switching and load control in battery/low‑voltage circuits
- Small‑signal amplification and level shifting (emitter follower or common‑emitter stages)
- Driver stages for transistors, relays, or TTL/CMOS gates
- Simple linear regulators and current‑source/limiter circuits
- LED driver and signaling circuits
- Audio preamplifier and general signal‑conditioning circuits
It complements BC817 (NPN) in complementary designs.

BC807-25W uses the TO-92 plastic package (through-hole, three-pin transistor).