component
BSS138DW
Public Made by Adomby adom
YFW MOSFETs, SOT-363. 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
markdownBSS138DW
YFW · MOSFETs · SOT-363
BSS138DW from YFW, in a SOT-363. 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 | S1 | passive | Source of MOSFET 1 (N-channel, VDS max 50V, ID 0.22A continuous). |
| 2 | G1 | input | Gate of MOSFET 1, with gate-source voltage limit of ±20V and threshold of 0.80 to 1.50V at ID=1mA. |
| 3 | D2 | passive | Drain of MOSFET 2 (VDS max 50V, ID 0.22A continuous, RDS(on) max 3.5Ω at VGS=10V). |
| 4 | S2 | passive | Source of MOSFET 2 (N-channel, VDS max 50V, ID 0.22A continuous). |
| 5 | G2 | input | Gate of MOSFET 2, with gate-source voltage limit of ±20V and threshold of 0.80 to 1.50V at ID=1mA. |
| 6 | D1 | passive | Drain of MOSFET 1 (VDS max 50V, ID 0.22A continuous, RDS(on) max 3.5Ω at VGS=10V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | SOT-363 |
| Category | Transistors/Thyristors |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS | 50 | V | 1 | |||
| Continuous Gate-Source Voltage | VGSS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | 0.22 | A | 1 | |||
| Power Dissipation | PD | 0.3 | W | 1 | |||
| Thermal Resistance from Junction to Ambient | RθJA | 417 | ℃/W | 1 | |||
| Operating Temperature | Tj | 150 | ℃ | 1 | |||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Drain-source breakdown voltage | V(BR)DSS | 50 | V | VGS = 0V, ID =250µA | 2 | ||
| Gate-body leakage | IGSS | -500 | 500 | nA | VDS =0V, VGS =±20V | 2 | |
| Zero gate voltage drain current | IDSS | 0.5 | µA | VDS =50V, VGS =0V | 2 | ||
| Zero gate voltage drain current | IDSS | 100 | nA | VDS =30V, VGS =0V | 2 | ||
| Gate-threshold voltage (note 1) | VGS(th) | 0.8 | 1.5 | V | VDS =VGS, ID =1mA | 2 | |
| Static drain-source on-resistance (note 1), VGS=10V | RDS(on) | 3.5 | Ω | VGS =10V, ID =0.22A | 2 | ||
| Static drain-source on-resistance (note 1), VGS=4.5V | RDS(on) | 6 | Ω | VGS =4.5V, ID =0.22A | 2 | ||
| Body diode forward voltage (note 1) | VSD | 1.4 | V | IS=0.44A, VGS = 0V | 2 |
CAD (KiCad official)
- Symbol:
BSS138DW - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
bss138dw-etched.step/bss138dw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bss138dw.step/bss138dw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (4 pp, sha256
1514ee98107d142b, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).