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BAT54SW-QX

Public Made by Adom

by adom

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

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BAT54SW-QX

Nexperia · Schottky Diodes · SOT-23

BAT54SW-QX from Nexperia, 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 A1 passive Anode of diode 1 (Schottky, 30 V max reverse voltage, 200 mA max forward current per diode).
2 K2 passive Cathode of diode 2 (Schottky, 30 V max reverse voltage, 200 mA max forward current per diode).
3 K1, A2 passive Common node joining the cathode of diode 1 and the anode of diode 2 (series configuration).

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Diodes
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
Reverse voltage VR 30 V Tj = 25 °C 2
Forward current IF 200 mA 2
Repetitive peak forward current IFRM 300 mA tp ≤ 1 s; δ ≤ 0.5 2
Non-repetitive peak forward current IFSM 600 mA tp < 10 ms; Tj(init) = 25 °C [1] 2
Total power dissipation Ptot 200 mW Per device; one diode loaded; Tamb ≤ 25 °C [2] 2
Junction temperature Tj 150 °C 2
Ambient temperature Tamb -55 150 °C 2
Storage temperature Tstg -65 150 °C 2
Thermal resistance from junction to ambient Rth(j-a) 625 K/W Per device; one diode loaded; in free air [1] 2
Forward voltage VF 240 mV IF = 0.1 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 320 mV IF = 1 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 400 mV IF = 10 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 500 mV IF = 30 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Forward voltage VF 800 mV IF = 100 mA; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Reverse current IR 2 µA VR = 25 V; tp ≤ 300 µs; δ ≤ 0.02; pulsed; Tamb = 25 °C 3
Diode capacitance Cd 10 pF VR = 1 V; f = 1 MHz; Tamb = 25 °C 3
Reverse recovery time trr 5 ns IF = 10 mA; IR = 10 mA; IR(meas) = 1 mA; RL = 100 Ω; Tamb = 25 °C 3

CAD (KiCad official)

  • Symbol: BAT54SW-QX
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bat54sw-qx-etched.step / bat54sw-qx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bat54sw-qx.step / bat54sw-qx.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (8 pp, sha256 8f2a0962dfaa94bc, retrieved 2026-10-18, tier: lcsc)
  • 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