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CDBA140-HF

Public Made by Adom

by adom

Comchip Schottky Barrier Diodes (SBD), SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CDBA140-HF

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

CDBA140-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 terminal, marked by the cathode band on the DO-214AC (SMA) body; the CDBA140-HF blocks up to 40 V DC (VRRM 40 V) and passes 1.0 A average forward current.
2 A passive Anode terminal, the end opposite the cathode band on the DO-214AC (SMA) body; maximum forward voltage for the CDBA140-HF is 0.50 V at 1.0 A, TA=25°C.

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 Ta=25°C 1
Max. DC blocking voltage VDC 40 V Ta=25°C 1
Max. RMS voltage VRMS 28 V Ta=25°C 1
Forward rectified current IO 1 A see Fig.1 1
Forward surge current IFSM 30 A 8.3ms single half sine-wave superimposed on rate load (JEDEC method) 1
Max. instantaneous forward voltage VF 0.5 V @1.0A, 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
Thermal resistance RθJA 88 °C/W Junction to ambient 1
Diode junction capacitance CJ 120 pF f=1MHZ and applied 4V DC reverse voltage 1
Operating temperature TJ -50 150 °C 1
Storage temperature TSTG -50 175 °C 1

CAD (KiCad official)

  • Symbol: CDBA140-HF
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: cdba140-hf-etched.step / cdba140-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cdba140-hf.step / cdba140-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Comchip datasheet (4 pp, sha256 a6c7dac01b0a2a72, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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