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BAT54T

Public Made by Adom

by adom

Tak Cheong Schottky Diodes, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BAT54T

Tak Cheong · Schottky Diodes · SOT-523

BAT54T from Tak Cheong, in a SOT-523. 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 A passive Anode of the single Schottky diode (BAT54T, marking L1); reverse voltage 30 V max and average rectified output current 200 mA.
2 NC unconnected Not connected internally in BAT54T; the symbol shows no diode on pin 2 (pin 2 is used only in the BAT54ST dual version).
3 K passive Cathode of the single Schottky diode (BAT54T, marking L1); reverse voltage 30 V max and average rectified output current 200 mA.

Key specifications

Parameter Value
Manufacturer Tak Cheong
Package SOT-523
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
Power Dissipation PD 150 mW 1
Storage Temperature Range TSTG -55 125 °C 1
Operating Junction Temperature TJ 125 °C 1
Reverse Voltage VR 30 V 1
Average Rectified Output Current IFO 200 mA 1
Reverse Breakdown Voltage V(BR) 30 Volts IR=100µA 1
Reverse Leakage Current IR 2 µA VR=25V 1
Forward Voltage VF 0.24 Volts IF=0.1mA 1
Forward Voltage VF 0.32 Volts IF=1mA 1
Forward Voltage VF 0.4 Volts IF=10mA 1
Forward Voltage VF 0.5 Volts IF=30mA 1
Forward Voltage VF 1 Volts IF=100mA 1
Total Capacitance CT 10 pF VR=1V, f=1MHz 1
Reverse Recovery Time Trr 5 nS IF= IR= 10mA, IRR=0.1x IR, RL=100Ω 1

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 ƒ Matte Tin(Sn) Lead Finish Electrical Symbol & Marking Codes: 1

CAD (KiCad official)

  • Symbol: BAT54T
  • Footprint: Package_TO_SOT_SMD:SOT-523
  • 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: bat54t-etched.step / bat54t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bat54t.step / bat54t.glb are the bare package body.

Provenance

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

  • Datasheet: Tak Cheong datasheet (4 pp, sha256 60049cca62a18db3, 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