component
UMW SS34A
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UMW Schottky Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# UMW SS34A++**UMW** · Schottky Diodes · SMA(DO-214AC)++UMW SS34A from UMW, 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 end marked by the color band on the SMA (DO-214AC) body. |+| 2 | A | passive | Anode terminal of the Schottky rectifier, opposite the color-band end. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| 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 |+|---|---|---|---|---|---|---|---|+| Maximum repetitive peak reverse voltage | VRRM | | | 40 | V | | 2 |+| Maximum RMS voltage | VRMS | | | 28 | V | | 2 |+| Maximum DC blocking voltage | VDC | | | 40 | V | | 2 |+| Maximum average forward rectified current | IF(AV) | | | 3 | A | | 2 |+| Peak forward surge current | IFSM | | | 100 | A | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) | 2 |+| Maximum instantaneous forward voltage | VF | | | 0.5 | V | at 3.0 A, pulse test PW=300 us, 1% duty cycle | 2 |+| Typical thermal resistance, junction to lead | RθJL | | 17 | | °C/W | | 2 |+| Typical thermal resistance, junction to ambient | RθJA | | 55 | | °C/W | | 2 |+| Junction temperature range | TJ | -55 | | 150 | °C | | 2 |++## CAD (KiCad official)++- Symbol: `UMW SS34A`+- Footprint: `Diode_SMD:D_SMA`+- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)+- 3D model files: `umw-ss34a-etched.step` / `umw-ss34a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `umw-ss34a.step` / `umw-ss34a.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757778876603224064) (6 pp, sha256 `1d5aee37d98864f5`, retrieved 2026-10-19, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/umw-ss34a-datasheet.pdf)
page.jsonadded+27@@ -0,0 +1,27 @@+{+ "schema_version": 1,+ "type": "component",+ "slug": "umw-ss34a",+ "title": "umw-ss34a",+ "brief": "UMW Schottky Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "version": "0.1.0",+ "author": {+ "handle": "ray",+ "name": "Ray"+ },+ "visibility": {+ "public": true+ },+ "component": {+ "mpn": "UMW SS34A",+ "manufacturer": "UMW",+ "package": "SMA(DO-214AC)",+ "pin_count": 2,+ "category": "Diodes",+ "subcategory": "Schottky",+ "parts": {},+ "distributor_links": {+ "lcsc": "C2758579"+ }+ }+}