component

BSS138DWK-7

Public Made by Adom

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Diodes Incorporated MOSFETs, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttriode-mos tube-transistorbss138dwk-7factory-2.0.0extractor-text

Verified BSS138DWK-7

by Ray · last 9 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

9 Nov 2026RayPublished by the parts factory: tier mfr, 6 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BSS138DWK-7 · SOT-363 · 6 pins
  • ✓copper: 6 copper pads, none touching another net
  • ✓datasheet: all 6 pin names found in the 7-page datasheet
  • ✓distributor: lcsc C17217426, digikey 31-BSS138DWK-7TR-ND, mouser 621-BSS138DWK-7
  • ✓family: SOT-363_SC-70-6
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-akargry2/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 6 pins = 6 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 6 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bss138dwk-7.kicad_sym✓ bss138dwk-7.kicad_mod✓ bss138dwk-7.step
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Ray Publish 0.1.0 61cbcef 3d ago

BSS138DWK-7

Diodes Incorporated · MOSFETs · SOT-363

BSS138DWK-7 from Diodes Incorporated, 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, 50V VDSS, 310mA continuous drain current).
2 G1 input Gate of MOSFET 1, ESD protected with an internal gate protection diode, VGSS ±20V maximum.
3 D2 passive Drain of MOSFET 2 (50V VDSS, 310mA continuous drain current).
4 S2 passive Source of MOSFET 2 (N-channel, 50V VDSS, 310mA continuous drain current).
5 G2 input Gate of MOSFET 2, ESD protected with an internal gate protection diode, VGSS ±20V maximum.
6 D1 passive Drain of MOSFET 1 (50V VDSS, 310mA continuous drain current).

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-363
Category Triode/MOS Tube/Transistor
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 VDSS 50 V 2
Gate-Source Voltage VGSS -20 20 V 2
Continuous Drain Current (TA = +25°C) ID 310 mA VGS = 10V, steady state, TA = +25°C (Note 6) 2
Continuous Drain Current (TA = +70°C) ID 250 mA VGS = 10V, steady state, TA = +70°C (Note 6) 2
Maximum Continuous Body Diode Forward Current IS 310 mA Note 6 2
Pulsed Drain Current IDM 0.9 A 10µs pulse, duty cycle = 1% 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Total Power Dissipation PD 0.33 W Note 5 2
Total Power Dissipation PD 0.49 W Note 6 2
Thermal Resistance, Junction to Ambient RθJA 371 °C/W Steady state, Note 5 2
Thermal Resistance, Junction to Ambient RθJA 257 °C/W Steady state, Note 6 2
Drain-Source Breakdown Voltage BVDSS 50 V VGS = 0V, ID = 250µA 2
Zero Gate Voltage Drain Current IDSS 1 µA TJ = +25°C, VDS = 50V, VGS = 0V 2
Gate-Source Leakage IGSS -10 10 µA VGS = ±20V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) 0.5 1.5 V VDS = VGS, ID = 250µA 2
Static Drain-Source On-Resistance RDS(ON) 1.2 2.6 Ω VGS = 10V, ID = 0.2A 2
Static Drain-Source On-Resistance RDS(ON) 1.4 3.2 Ω VGS = 4.5V, ID = 0.2A 2
Static Drain-Source On-Resistance RDS(ON) 2.9 5.2 Ω VGS = 2.5V, ID = 0.2A 2
Diode Forward Voltage VSD 0.8 1.2 V VGS = 0V, ID = 0.2A 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe. Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: BSS138DWK-7
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: bss138dwk-7-etched.step / bss138dwk-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss138dwk-7.step / bss138dwk-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 7f6f23602ad0e03d, retrieved 2026-11-09, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF