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MMBD4148CA RFG

Public Made by Adom

by adom

Taiwan Semiconductor Switching Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMBD4148CA RFG

Taiwan Semiconductor · Switching Diodes · SOT-23

MMBD4148CA RFG from Taiwan Semiconductor, 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 K1 passive Cathode of diode 1 in the MMBD4148CA common-anode dual (100V VRRM, 200mA IF per the datasheet).
2 K2 passive Cathode of diode 2 in the MMBD4148CA common-anode dual (100V VRRM, 200mA IF per the datasheet).
3 A passive Common anode of both diodes in the MMBD4148CA (common-anode configuration per the pin configuration drawing).

Key specifications

Parameter Value
Manufacturer Taiwan Semiconductor
Package SOT-23
Category Diodes
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
Forward voltage per diode VF 0.82 V IF = 10mA, TJ = 25°C 2
Reverse current per diode IR 25 nA VR = 20V, TJ = 25°C 2
Reverse current per diode IR 5 μA VR = 75V, TJ = 25°C 2
Reverse current per diode IR 50 μA VR = 20V, TA = 150°C 2
Reverse breakdown voltage per diode VBR 75 V IR = 5μA, TJ = 25°C 2
Reverse breakdown voltage per diode VBR 100 V IR = 100μA, TJ = 25°C 2
Junction capacitance per diode CJ 4 pF f = 1MHz, VR = 0V 2
Reverse recovery time per diode trr 4 ns IF = 10mA, IR = 1mA, RL = 100Ω, VR = 6V 2
Repetitive peak reverse voltage VRRM 100 V TA = 25°C 1
Forward current IF 200 mA TA = 25°C 1
Repetitive peak forward surge current IFRM 700 mA TA = 25°C 1
Non-repetitive peak forward surge current IFSM 2 A t = 1μs, TA = 25°C 1
Non-repetitive peak forward surge current IFSM 1 A t = 1s, TA = 25°C 1
Junction temperature range TJ -55 150 °C 1
Storage temperature range TSTG -55 150 °C 1
Junction-to-ambient thermal resistance RӨJA 357 °C/W 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 ● Terminal: Matte tin plated leads, solderable per J-STD-002 ● Meet JESD 201 class 1A whisker test 1

CAD (KiCad official)

  • Symbol: MMBD4148CA RFG
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbd4148ca-rfg-etched.step / mmbd4148ca-rfg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbd4148ca-rfg.step / mmbd4148ca-rfg.glb are the bare package body.

Provenance

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

  • Datasheet: Taiwan Semiconductor datasheet (5 pp, sha256 eddc7cdbd09d3cd6, 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