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Contents

README

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MMBTA56-7-F

Diodes Incorporated · Bipolar (BJT) · SOT-23

MMBTA56-7-F from Diodes Incorporated, 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; the datasheet's top-view pin-out shows it on the lower of the two same-side leads.
2 E passive Emitter of the PNP transistor; the datasheet states VEBO of -4.0 V maximum.
3 C passive Collector of the PNP transistor; the datasheet states IC of -500 mA continuous and VCEO of -80 V for the MMBTA56.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
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 BVCBO -80 V IC = -100µA, IE = 0 4
Collector-Emitter Breakdown Voltage BVCEO -80 V IC = -1.0mA, IB = 0 4
Emitter-Base Breakdown Voltage BVEBO -5 -4 V IE = -100µA, IC = 0 4
Collector Cut-Off Current ICBO -100 nA VCB = -80V, IE = 0 4
DC Current Gain hFE 100 IC = -10mA, VCE = -1.0V; IC = -100mA, VCE = -1.0V 4
Collector-Emitter Saturation Voltage VCE(sat) -0.25 V IC = -100mA, IB = -10mA 4
Base-Emitter Saturation Voltage VBE(sat) -1.2 V IC = -100mA, VCE = -1.0V 4
Current Gain-Bandwidth Product fT 50 MHz VCE = -1.0V, IC = -100mA, f = 100MHz 4
Collector-Base Voltage VCBO -80 V 2
Collector-Emitter Voltage VCEO -80 V 2
Emitter-Base Voltage VEBO -4 V 2
Collector Current - Continuous IC -500 mA 2
Power Dissipation PD 310 mW Note 5 (minimum recommended pad layout, 1oz copper, single-sided FR4) 2
Power Dissipation PD 350 mW Note 6 (15 mm x 15 mm 1oz copper) 2
Thermal Resistance, Junction to Ambient RθJA 403 °C/W Note 5 (minimum recommended pad layout, 1oz copper, single-sided FR4) 2
Thermal Resistance, Junction to Ambient RθJA 357 °C/W Note 6 (15 mm x 15 mm 1oz copper) 2
Thermal Resistance, Junction to Leads RθJL 350 °C/W Note 7 (junction to solder-point, at end of leads) 2
Operating and Storage Temperature Range TJ,TSTG -55 150 °C 2
Electrostatic Discharge - Human Body Model ESD HBM 4000 V JEDEC Class 3A 2
Electrostatic Discharge - Machine Model ESD MM 400 V JEDEC Class C 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Finish-Matte Tin Plated Leads. Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: MMBTA56-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbta56-7-f-etched.step / mmbta56-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbta56-7-f.step / mmbta56-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 8fc594a07927affc, 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