# CDBA240LL-HF

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

CDBA240LL-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 |
|---|---|---|---|---|---|---|---|
| Peak repetitive reverse voltage | VRRM |  |  | 40 | V |  | 1 |
| DC blocking voltage | VRM |  |  | 40 | V |  | 1 |
| Forward rectified current | IO |  |  | 2 | A |  | 1 |
| Forward surge current | IFSM |  |  | 70 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) | 1 |
| Operating temperature range | TJ | -55 |  | 100 | °C |  | 1 |
| Storage temperature range | TSTG | -55 |  | 150 | °C |  | 1 |
| Forward voltage drop | VF |  |  | 350 | mV | IF = 2A, TJ = 25°C | 1 |
| Working peak reverse voltage | VRRM | 40 |  |  | V | IR=1mA, TJ=25°C | 1 |
| Junction to ambient thermal resistance | RθJA |  | 70 |  | °C/W |  | 1 |
| Junction to case thermal resistance | RθJC |  | 40 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `CDBA240LL-HF`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `cdba240ll-hf-etched.step` / `cdba240ll-hf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cdba240ll-hf.step` / `cdba240ll-hf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Comchip datasheet](docs/cdba240ll-hf-datasheet.pdf) (4 pp, sha256 `8f183f922d4965cd`, 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](docs/cdba240ll-hf-datasheet.pdf)