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BAT54C-HAF

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ST Semtech Schottky Diodes, TO-236. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BAT54C-HAF

ST Semtech · Schottky Diodes · TO-236

BAT54C-HAF from ST Semtech, in a TO-236. 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 the first Schottky diode in the BAT54C dual common-cathode configuration (30 V VRRM, 200 mA IF(AV) per the datasheet ratings).
2 A2 passive Anode of the second Schottky diode in the BAT54C dual common-cathode configuration (30 V VRRM, 200 mA IF(AV) per the datasheet ratings).
3 K passive Common cathode of both Schottky diodes in the BAT54C configuration, which is the pin 3 top terminal of the TO-236 package.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package TO-236
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
Repetitive Peak Reverse Voltage VRRM 30 V 1
Average Rectified Forward Current IF(AV) 200 mA 1
Non-repetitive Peak Forward Surge Current IFSM 600 mA Pulse width = 1 second 1
Power Dissipation Ptot 290 mW 1
Operating Junction Temperature Range Tj -55 150 ℃ 1
Storage Temperature Range Tstg -55 150 ℃ 1
Thermal Resistance Junction to Ambient Air RθJA 430 ℃/W Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout 1
Forward Voltage VF 240 mV at IF = 0.1 mA 2
Forward Voltage VF 320 mV at IF = 1 mA 2
Forward Voltage VF 400 mV at IF = 10 mA 2
Forward Voltage VF 500 mV at IF = 30 mA 2
Forward Voltage VF 800 mV at IF = 100 mA 2
Reverse Current IR 2 μA at VR = 25 V 2
Reverse Breakdown Voltage V(BR)R 30 V at IR = 10 μA 2
Total Capacitance Ctot 10 pF at VR = 1 V, f = 1 MHz 2
Reverse Recovery Time trr 5 ns at IF = 10 mA, IR = 10 mA, IRR = 1 mA, RL = 100 Ω 2

CAD (KiCad official)

  • Symbol: BAT54C-HAF
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: TO-236 (KiCad packages3D, STEP)
  • 3D model files: bat54c-haf-etched.step / bat54c-haf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bat54c-haf.step / bat54c-haf.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (4 pp, sha256 01d1745de18eb844, retrieved 2026-10-16, 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