# SS1M

**EIC Semicon** · Diodes - Fast Recovery Rectifiers · DO-214AC(SMA)

SS1M from EIC Semicon, in a DO-214AC(SMA). 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, the end marked by the color band; the part is rated for 50-1000 V PRV across the series (1000 V for SS1M) and 1.0 A average forward current. |
| 2 | A | passive | Anode terminal at the end opposite the color band; maximum peak forward voltage is 0.95 V at IF = 1.0 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | EIC Semicon |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Recurrent Peak Reverse Voltage | VRRM |  |  | 1000 | V | SS1M | 1 |
| Maximum RMS Voltage | VRMS |  |  | 700 | V | SS1M | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 1000 | V | SS1M | 1 |
| Maximum Average Forward Current | IF(AV) |  |  | 1 | A | Ta = 55 °C | 1 |
| Maximum Peak Forward Surge Current | IFSM |  |  | 30 | A | 8.3 ms. Single half sine wave superimposed on rated load (JEDEC Method) | 1 |
| Junction Temperature Range | TJ | -65 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 1 |
| Typical Junction Capacitance | CJ |  | 50 |  | pf | Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC | 1 |

## CAD (KiCad official)

- Symbol: `SS1M`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `ss1m-etched.step` / `ss1m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ss1m.step` / `ss1m.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [EIC Semicon datasheet](docs/ss1m-datasheet.pdf) (2 pp, sha256 `96c7e4f093376272`, 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](docs/ss1m-datasheet.pdf)