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Contents

README

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MMBTSC3356W-3G

CBI · Bipolar (BJT) · SOT-323

MMBTSC3356W-3G from CBI, in a SOT-323. 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 3 V, collector-base voltage max 20 V (VCBO).
2 E passive Emitter of the NPN transistor; VEBO max 3 V relative to base.
3 C passive Collector of the NPN transistor; VCEO max 12 V, IC max 100 mA.

Key specifications

Parameter Value
Manufacturer CBI
Package SOT-323
Category Transistors/Thyristors
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
DC Current Gain, Group Q hFE 50 100 - VCE = 10 V, IC = 20 mA 1
DC Current Gain, Group R hFE 80 160 - VCE = 10 V, IC = 20 mA 1
DC Current Gain, Group S hFE 125 250 - VCE = 10 V, IC = 20 mA 1
Collector Cutoff Current ICBO 1 µA VCB = 10 V 1
Emitter Cutoff Current IEBO 1 µA VEB = 1 V 1
Feed-Back Capacitance Cre 0.55 1 pF VCB = 10 V, f = 1 MHz 1
Noise Figure NF 1.1 2 dB VCE = 10 V, IC = 7 mA, f = 1 GHz 1
Collector Base Voltage VCBO 20 V 1
Collector Emitter Voltage VCEO 12 V 1
Emitter Base Voltage VEBO 3 V 1
Collector Current IC 100 mA 1
Power Dissipation Ptot 200 mW 1
Junction Temperature Tj 150 °C 1
Storage Temperature Range TS -65 150 °C 1

CAD (KiCad official)

  • Symbol: MMBTSC3356W-3G
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: mmbtsc3356w-3g-etched.step / mmbtsc3356w-3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbtsc3356w-3g.step / mmbtsc3356w-3g.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 0db19422bf5af54e, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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