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Ray Publish 0.1.0 3ae6e67 6d ago

ACDBB540-HF

Comchip · Schottky Barrier Diodes (SBD) · SMB

ACDBB540-HF from Comchip, in a SMB. 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-214AA (SMB) body; reverse voltage rated 40 V (VRRM/VDC).
2 A passive Anode terminal of the Schottky rectifier, opposite the cathode band; average forward current 5 A with VF of 0.55 V max at IF = 5 A.

Key specifications

Parameter Value
Manufacturer Comchip
Package SMB
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
Repetitive peak reverse voltage VRRM 40 V 1
DC blocking voltage VDC 40 V 1
RMS voltage VRMS 28 V 1
Average forward rectified current IF 5 A 1
Peak forward surge current IFSM 100 A 8.3ms single half sine-wave superimposed on rate load (JEDEC method) 1
Operating temperature range TJ -55 125 °C 1
Storage temperature range TSTG -55 150 °C 1
Instantaneous forward voltage VF 0.55 V IF = 5A, TA=25°C 1
Reverse current IR 0.5 mA VR = VRRM, TA=25°C 1
Reverse current IR 10 mA VR = VRRM, TA=100°C 1
Junction capacitance CJ 300 pF f=1MHZ and applied 4V DC reverse Voltage 1
Thermal resistance junction to case RθJC 15 °C/W 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 - Terminals: Lead free plating (Tin finish). -Solderable per MIL-STD-202, Method 208. 1

CAD (KiCad official)

  • Symbol: ACDBB540-HF
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: acdbb540-hf-etched.step / acdbb540-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acdbb540-hf.step / acdbb540-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Comchip datasheet (4 pp, sha256 d05b8645e601a330, 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