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BSS138-13-F

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Diodes Incorporated MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BSS138-13-F

Diodes Incorporated · MOSFETs · SOT-23

BSS138-13-F from Diodes Incorporated, 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 G input Gate; shown at bottom left of the top view, with a continuous gate-source rating of ±20 V and a threshold of 0.5 V min to 1.5 V max at ID = 250 µA.
2 S passive Source; shown at bottom right of the top view, and the body diode anode connects here.
3 D passive Drain; shown at the top centre of the top view, with a drain-source voltage rating of 50 V and a continuous drain current of 200 mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Transistors
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
Drain-Source Breakdown Voltage BVDSS 50 75 V VGS = 0V, ID = 250µA 2
Zero Gate Voltage Drain Current IDSS 0.5 µA VDS = 50V, VGS = 0V 2
Gate-Body Leakage IGSS 100 nA VGS = 20V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) 0.5 1.2 1.5 V VDS = VGS, ID = 250µA 2
Static Drain-Source On-Resistance RDS(ON) 1.4 3.5 Ω VGS = 10V, ID = 0.22A 2
Forward Transconductance gFS 100 mS VDS = 25V, ID = 0.2A, f = 1.0KHz 2
Input Capacitance Ciss 50 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Output Capacitance Coss 25 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Reverse Transfer Capacitance Crss 8 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Turn-On Delay Time tD(ON) 20 ns VDD = 30V, ID = 0.2A, RGEN = 50Ω 2
Turn-Off Delay Time tD(OFF) 20 ns VDD = 30V, ID = 0.2A, RGEN = 50Ω 2
Drain-Source Voltage VDSS 50 V TA = +25°C 2
Drain-Gate Voltage VDGR 50 V RGS ≤ 20K 2
Gate-Source Voltage Continuous VGSS -20 20 V Continuous 2
Gate-Source Voltage Non Repetitive VGSS -40 40 V Pulse Width<50µs 2
Drain Current Continuous ID 200 mA TA = +25°C 2
Pulsed Drain Current IDM 1 A 10µs Pulse Duty Cycle = 1% 2
Power Dissipation PD 300 mW Note 5, TA = +25°C 2
Thermal Resistance, Junction to Ambient RθJA 417 °C/W Note 5 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 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 (Lead Free Plating). Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: BSS138-13-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bss138-13-f-etched.step / bss138-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss138-13-f.step / bss138-13-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 9880dc0c619083b1, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF