component
MMBFJ111
Public Made by Adomby adom
onsemi JFETs, SOT-23. Pinout reviewed by a person 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
markdownMMBFJ111
onsemi · JFETs · SOT-23
MMBFJ111 from onsemi, 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 | Gate | input | Gate control electrode for n-channel JFET; maximum gate-source breakdown voltage -35 V at VDS = 0; maximum forward gate current 50 mA; gate-source cut-off voltage -3.0 to -10.0 V for MMBFJ111. |
| 2 | Source | passive | Source terminal; interchangeable with drain per datasheet; carries maximum drain current 20 mA at VDS = 15 V with VGS = 0; operating junction temperature range -55 to 150°C. |
| 3 | Drain | passive | Drain terminal; interchangeable with source per datasheet; maximum drain-gate voltage 35 V; drain-source on-resistance 30 Ω at VGS = 0 for MMBFJ111; maximum device dissipation 350 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MMBFJ111 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbfj111-etched.step/mmbfj111-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbfj111.step/mmbfj111.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (10 pp, sha256
31bb42c5278ef581, retrieved 2026-09-29, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).