component

MMBF4093

Public Made by Adom

by adom

onsemi JFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorsmmbf4093factory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs mmbf4093: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers mmbf4093: viewers · Ray 1mo ago
mmbf4093-etched.fit.json mmbf4093: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbf4093-etched.glb mmbf4093: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbf4093-etched.step mmbf4093: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbf4093.glb Publish 0.1.0 · Ray 1mo ago
mmbf4093.kicad_mod Publish 0.1.0 · Ray 1mo ago
mmbf4093.kicad_sym Publish 0.1.0 · Ray 1mo ago
mmbf4093.lbr Publish 0.1.0 · Ray 1mo ago
mmbf4093.step Publish 0.1.0 · Ray 1mo ago
package.json mmbf4093: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
page.json mmbf4093: specified limits as data (metadata.characteristics, 20 rows from the datasheet) · Ray 23d ago
README.md mmbf4093: specified limits as data (metadata.characteristics, 20 rows from the datasheet) · Ray 23d ago

MMBF4093

onsemi · JFETs · SOT-23

MMBF4093 from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Drain passive Drain terminal (interchangeable with source); absolute maximum drain-gate voltage VDG 40V
2 Source passive Source terminal (interchangeable with drain); absolute maximum gate-source voltage VGS -40V
3 Gate input Gate terminal controlling channel conduction; gate-source cutoff voltage VGS(off) -1V to -5V; absolute maximum forward gate current IGF 50mA

Key specifications

Parameter Value
Manufacturer onsemi
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
Gate-Source Breakdown Voltage V(BR)GSS -40 V IG = 1 A, VDS = 0 2
Gate-Source Cut-Off Voltage VGS(off) -1 -5 V VDS = 20 V, ID = 1 nA 2
Drain-Gate Leakage Current IDGO -200 pA VDG = 20 V, IS = 0 2
Drain-Gate Leakage Current IDGO -400 nA VDG = 20 V, IS = 0, TA = 150°C 2
Drain Cutoff Leakage Current ID(off) 200 pA VDS = 20 V, VGS = −6 V 2
Drain Cutoff Leakage Current ID(off) 400 nA VDS = 20 V, VGS = −6 V, TA = 150°C 2
Zero-Gate Voltage Drain Current IDSS 8 mA VDS = 20 V, IGS = 0; Note 4 pulse test 2
Drain-Source On Voltage VDS(on) 0.2 V ID = 2.5 mA, VGS = 0 2
Drain-Source On Resistance rDS(on) 80 ID = 1 mA, VGS = 0 2
Input Capacitance Ciss 16 pF VDS = 20 V, VGS = 0 V, f = 1.0 MHz 2
Reverse Transfer Capacitance Crss 5 pF VDS = −20 V, f = 1.0 MHz 2
Turn-On Time tOn 60 ns ID(on) = 3.0 mA 2
Turn-Off Time tOff 80 ns VGS(off) = 3.0 V 2
Drain-Gate Voltage VDG 40 V 1
Gate-Source Voltage VGS -40 V 1
Forward Gate Current IGF 50 mA 1
Operating and Storage Junction Temperature Range TJ, TSTG -55 150 °C 1
Total Device Dissipation PD 350 mW TA = 25°C 1
Thermal Resistance, Junction to Ambient RJA 357 °C/W Note 3: device mounted on FR-4 PCB 1.6" x 1.6" x 0.06" 1
Derate above 25°C 2.8 mW/°C 1

CAD (KiCad official)

  • Symbol: MMBF4093
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbf4093-etched.step / mmbf4093-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbf4093.step / mmbf4093.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (4 pp, sha256 ed1bebb2b3b1714a, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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