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BF820

Public Made by Adom

by adom

Nexperia Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BF820

Nexperia · Bipolar Transistors - BJT · SOT-23

BF820 from Nexperia, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 B input Base of the NPN transistor; VEBO max 5 V and peak base current IBM max 50 mA (single pulse, tp ≤ 1 ms).
2 E passive Emitter of the NPN transistor; VEBO (emitter-base, open collector) max 5 V.
3 C passive Collector of the NPN transistor; VCEO max 300 V, VCBO max 300 V, IC max 50 mA (ICM 100 mA peak).

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Transistors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
collector-base cut-off current ICBO 10 nA VCB = 200 V; IE = 0 A; Tamb = 25 °C 3
collector-base cut-off current ICBO 10 µA VCB = 200 V; IE = 0 A; Tj = 150 °C 3
emitter-base cut-off current IEBO 50 nA VEB = 5 V; IC = 0 A; Tamb = 25 °C 3
DC current gain hFE 50 VCE = 20 V; IC = 25 mA; Tamb = 25 °C 3
collector-emitter saturation voltage VCEsat 600 mV IC = 30 mA; IB = 5 mA; Tamb = 25 °C 3
transition frequency fT 60 MHz VCE = 10 V; IC = 10 mA; f = 100 MHz; Tamb = 25 °C 3
feedback capacitance Cre 1.6 pF ic = 0 A; VCB = 30 V; f = 1 MHz; IC = 0 A; Tamb = 25 °C 3
collector-base voltage VCBO 300 V open emitter 2
collector-emitter voltage VCEO 300 V open base 2
emitter-base voltage VEBO 5 V open collector 2
collector current IC 50 mA 2
peak collector current ICM 100 mA 2
peak base current IBM 50 mA single pulse; tp ≤ 1 ms 2
total power dissipation Ptot 250 mW Tamb ≤ 25 °C; transistor mounted on an FR4 printed-circuit board 2
junction temperature Tj 150 °C 2
ambient temperature Tamb -65 150 °C 2
storage temperature Tstg -65 150 °C 2
thermal resistance from junction to ambient Rth(j-a) 500 K/W transistor mounted on an FR4 printed-circuit board 2

CAD (KiCad official)

  • Symbol: BF820
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bf820-etched.step / bf820-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bf820.step / bf820.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (7 pp, sha256 0193d8a81b64201f, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF