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MMSS8550-L-TP

MCC Micro Commercial Components · Bipolar (BJT) · SOT-23

MMSS8550-L-TP from MCC Micro Commercial Components, 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 PNP transistor; emitter-base breakdown V(BR)EBO is 6.0V min and emitter-base voltage VEB is 1.6V max at IE=1.5A.
2 E passive Emitter of the PNP transistor; IEBO is 0.1µA max at VEB=5.0V.
3 C passive Collector of the PNP transistor; V(BR)CBO is 40V min, V(BR)CEO is 25V min, collector current is 1.5A.

Key specifications

Parameter Value
Manufacturer MCC Micro Commercial Components
Package SOT-23
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
Collector-Base Breakdown Voltage V(BR)CBO 40 Vdc IC=100μAdc, IE=0 1
Collector-Emitter Breakdown Voltage V(BR)CEO 25 Vdc IC=0.1mAdc, IB=0 1
Emitter-Base Breakdown Voltage V(BR)EBO 6 Vdc IE=100μAdc, IC=0 1
Collector Cutoff Current ICBO 0.1 μAdc VCB=40Vdc, IE=0 1
Emitter Cutoff Current IEBO 0.1 μAdc VEB=5.0Vdc, IC=0 1
DC Current Gain hFE(1) hFE(1) 120 350 --- IC=100mAdc, VCE=1.0Vdc 1
DC Current Gain hFE(2) hFE(2) 40 --- IC=800mAdc, VCE=1.0Vdc 1
Collector-Emitter Saturation Voltage VCE(sat) 0.5 Vdc IC=800mAdc, IB=80mAdc 1
Base-Emitter Saturation Voltage VBE(sat) 1.2 Vdc IC=800mAdc, IB=80mAdc 1
Base-Emitter Voltage VEB 1.6 Vdc IE=1.5Adc 1
Transistor Frequency fT 100 MHz IC=50mAdc, VCE=10Vdc, f=30MHz 1
Operating and storage junction temperature range -55 150 °C Operating and storage junction temperature 1
Power Dissipation 0.625 W Tamb=25°C 1

CAD (KiCad official)

  • Symbol: MMSS8550-L-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmss8550-l-tp-etched.step / mmss8550-l-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmss8550-l-tp.step / mmss8550-l-tp.glb are the bare package body.

Provenance

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

  • Datasheet: MCC Micro Commercial Components datasheet (2 pp, sha256 b5660de139abf43d, retrieved 2026-10-18, 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