component
CDBA140-HF
Public Made by Adomby adom
Comchip Schottky Barrier Diodes (SBD), SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCDBA140-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cdba140-hf.step/cdba140-hf.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).