BC816-16HR

BC816-16HR is a general-purpose small-signal transistor from the BC816 family, used for switching and amplification in low-power circuits. The “-16HR” suffix designates a specific gain class and a High-Reliability (HR) variant. Typical ratings (vary by manufacturer) include a collector-emitter voltage around 45 V, a collector current up to ~0.5 A, and a moderate current gain that depends on operating current and temperature. It is offered in common packages (SOT-23 for surface-mount or TO-92 for through-hole, depending on vendor). Applications include driver stages, signal amplification, and general switching. For exact electrical specs, pinout, and packaging, consult the supplier’s datasheet, as tolerances and packaging can differ between manufacturers.

Equivalent parts (NPN general‑purpose, similar to BC816-16HR in SOT-23):
- BC846B-16
- BC817-16
- MMBT3904
Note: Verify pinout and hFE range in the datasheets; these are close substitutes but not exact matches.

BC816-16HR is a general‑purpose NPN silicon transistor (high-reliability grade). Key features:
- NPN small-signal transistor for amplification and switching
- High voltage: Vceo ≈ 80 V
- Collector current: Ic up to ~0.5 A
- High-gain group: hFE around 110–320 (16 grade)
- Package: surface-mount (SOT‑23, 3 pins), RoHS-compliant
- HR version: screened for extended reliability/temperature suitable for rugged/automotive applications
- Suitable for audio, driver, and small-signal switching tasks
- Moderate switching speed; good for general-purpose use
Note: exact numbers vary by lot and packaging; always check the current datasheet for precise Vceo, Ic, hFE ranges, and temp range.

Pin count: 3 pins.
Function: A general-purpose small-signal bipolar junction transistor (BJT) used for amplification and switching in electronic circuits (BC816 family).

Manufacturer: Nexperia. Nexperia is a global semiconductor company that specializes in discrete devices (transistors, diodes), logic, and protection components; it originated from Philips/NXP’s standard-products business.

BC816-16HR is a general-purpose NPN small-signal transistor (high-reliability variant).
Common applications:
- Low-power switching and amplification in consumer, industrial, and automotive electronics
- Microcontroller interfaces, level shifting, and bias networks
- Driving relays, LEDs, and other small loads
- Audio, sensor, and instrumentation signal paths
- Oscillator/timer circuits and small-signal switching in power supplies

TO-92 (through-hole) package.