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Contents

README

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MBR120ESFT1G

Tokmas · Schottky Barrier Diodes (SBD) · SOD-123FL

MBR120ESFT1G from Tokmas, in a SOD-123FL. 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 K passive Cathode, identified by the cathode band polarity designator on the package; the diode blocks up to 20 V DC reverse voltage (VR).
2 A passive Anode; the diode conducts up to 1.0 A average rectified forward current (IO) at TL = 140°C.

Key specifications

Parameter Value
Manufacturer Tokmas
Package SOD-123FL
Category Diodes
Pins 2

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Peak Repetitive Reverse Voltage VRRM 20 V VRRM/VRWM/VR 2
Average Rectified Forward Current IO 1 A At Rated VR, TL = 140°C 2
Peak Repetitive Forward Current IFRM 2 A At Rated VR, Square Wave, 20 kHz, TL = 125°C 2
Non-Repetitive Peak Surge Current IFSM 40 A halfwave, single phase, 60 Hz 2
Storage Temperature Tstg -65 150 °C 2
Operating Junction Temperature TJ -65 150 °C 2
Voltage Rate of Change dv/dt 10000 V/s Rated VR, TJ = 25°C 2
Thermal Resistance Junction-to-Lead (Note 1) Rtjl 26 °C/W Minimum recommended pad, FR4 2
Thermal Resistance Junction-to-Lead (Note 2) Rtjl 21 °C/W 1 in. copper pad (700 mm2) 2
Thermal Resistance Junction-to-Ambient (Note 1) Rtja 325 °C/W Minimum recommended pad, FR4 2
Thermal Resistance Junction-to-Ambient (Note 2) Rtja 82 °C/W 1 in. copper pad (700 mm2) 2
Maximum Forward Voltage VF 0.455 V IF = 0.1 A, TJ = 25°C 2
Maximum Forward Voltage VF 0.53 V IF = 1.0 A, TJ = 25°C 2
Maximum Forward Voltage VF 0.595 V IF = 2.0 A, TJ = 25°C 2
Maximum Forward Voltage VF 0.36 V IF = 0.1 A, TJ = 100°C 2
Maximum Forward Voltage VF 0.54 V IF = 2.0 A, TJ = 100°C 2
Maximum Reverse Current IR 10 A VR = 20 V, TJ = 25°C 2
Maximum Reverse Current IR 1 A VR = 10 V, TJ = 25°C 2
Maximum Reverse Current IR 0.5 A VR = 5.0 V, TJ = 25°C 2
Maximum Reverse Current IR 1600 A VR = 20 V, TJ = 100°C 2
Maximum Reverse Current IR 500 A VR = 10 V, TJ = 100°C 2
Maximum Reverse Current IR 300 A VR = 5.0 V, TJ = 100°C 2

CAD (KiCad official)

  • Symbol: MBR120ESFT1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: mbr120esft1g-etched.step / mbr120esft1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mbr120esft1g.step / mbr120esft1g.glb are the bare package body.

Provenance

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

  • Datasheet: Tokmas datasheet (5 pp, sha256 4ff579793282326f, retrieved 2026-10-22, tier: lcsc)
  • 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