component
MMBF4093
Public Made by Adomby adom
onsemi JFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMMBF4093
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbf4093.step/mmbf4093.glbare 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).