# 1.5SMBJ40CA

**BORN** · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMB)

1.5SMBJ40CA from BORN, in a DO-214AA(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 | A1 | passive | Bidirectional TVS terminal 1 (interchangeable with terminal 2, no polarity or cathode band on CA parts) with 40V reverse stand-off and 44.4V to 49.1V breakdown at 1mA. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (interchangeable with terminal 1, no polarity or cathode band on CA parts) with 64.5V max clamping at 23.3A peak pulse current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | DO-214AA(SMB) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1.5SMBJ40CA`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files: `1-5smbj40ca-etched.step` / `1-5smbj40ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1-5smbj40ca.step` / `1-5smbj40ca.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757247111073144832) (7 pp, sha256 `62ec162cfcc3666d`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/1-5smbj40ca-datasheet.pdf)