component
MMBF4391LT1G
Public Unreviewedby Ray
onsemi JFETs, SOT-23. Datasheet-verified pinout, 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
markdownMMBF4391LT1G
onsemi · JFETs · SOT-23
MMBF4391LT1G 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 | D | passive | Drain of the N-channel JFET. Absolute maximum VDS = 30 Vdc; IDSS = 50-150 mAdc at VDS = 15 V, VGS = 0. |
| 2 | S | passive | Source of the N-channel JFET. Reference for VGS (VGS max = 30 Vdc) and current return for the drain current. |
| 3 | G | input | Gate of the N-channel JFET. VGS(off) = -4 to -10 V (MMBF4391L). Forward gate current IG(f) max = 50 mAdc; V(BR)GSS min = 30 Vdc. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
MMBF4391LT1GMMBF4391LT1GSMMBF4391LT1G
CAD (KiCad official)
- Symbol:
MMBF4391LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (6 pp, sha256
766a0fa78de6bf92, retrieved 2026-08-17, 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).