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CDBA540-HF

Public Made by Adom

by adom

Comchip Schottky Barrier Diodes (SBD), SMA(DO-214AC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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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CDBA540-HF

Comchip · Schottky Barrier Diodes (SBD) · SMA(DO-214AC)

CDBA540-HF from Comchip, in a SMA(DO-214AC). 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Comchip
Package SMA(DO-214AC)
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Max. repetitive peak reverse voltage VRRM 40 V 1
Max. DC blocking voltage VDC 40 V 1
Max. RMS voltage VRMS 28 V 1
Forward rectified current IO 5 A see Fig.1 1
Forward surge current IFSM 380 A 8.3ms single half sine-wave superimposed on rate load (JEDEC method) 1
Max. instantaneous forward voltage VF 0.55 V @ 5.0A, TA=25°C 1
Reverse current IR 0.5 mA VR=VRRM TA=25°C 1
Reverse current IR 20 mA VR=VRRM TA=100°C 1
Storage temperature TSTG -50 175 °C 1
Operating temperature TJ -50 150 °C 1
Thermal resistance, junction to ambient RθJA 125 °C/W Junction to ambient 1
Diode junction capacitance CJ 24 pF f=1MHZ and applied 4V DC reverse Voltage 1

CAD (KiCad official)

  • Symbol: CDBA540-HF
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: cdba540-hf-etched.step / cdba540-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cdba540-hf.step / cdba540-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Comchip datasheet (4 pp, sha256 24cc618807a3b2bf, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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