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BAS40T

Public Made by Adom

by adom

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

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BAS40T

CBI · Schottky Diodes · SOT-523

BAS40T from CBI, 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 (printed as '1. BASE' in the package table); the BAS40T symbol connects the diode between pins 1 and 3, with VR and VRRM of 40 V and IF of 200 mA.
2 NC unconnected Not connected in the single-diode BAS40T symbol (printed as '2. EMITTER' in the package table); no diode is drawn on this pin.
3 K passive Cathode of the single Schottky diode (printed as '3. COLLECTOR' in the package table); the BAS40T symbol connects the diode between pins 1 and 3, with VR and VRRM of 40 V and IF of 200 mA.

Key specifications

Parameter Value
Manufacturer CBI
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
Repetitive Peak Reverse Voltage VRRM 40 V 1
DC Blocking Voltage VR 40 V 1
Forward Continuous Current IF 200 mA 1
Peak Forward Surge Current IFSM 600 mA tp < 1 s 1
Junction Temperature TJ 150 °C 1
Storage Temperature Range TS -55 150 °C 1
Forward Voltage VF 380 mV IF = 1 mA 1
Forward Voltage VF 1000 mV IF = 40 mA 1
Reverse Current IR 200 nA VR = 30 V 1
Reverse Breakdown Voltage V(BR)R 40 V IR = 10 μA 1
Reverse Recovery Time trr 5 ns from IF = 10 mA through IR = 10 mA to IR = 1 mA 1
Total Capacitance CT 5 pF VR = 0 V, f = 1 MHz 1

CAD (KiCad official)

  • Symbol: BAS40T
  • 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: bas40t-etched.step / bas40t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bas40t.step / bas40t.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (2 pp, sha256 788f90a08376369d, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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