component
SMF17CA
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Shandong Jingdao Microelectronics TVS, SOD-123FL. 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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Contents
README
markdownSMF17CA
Shandong Jingdao Microelectronics · TVS · SOD-123FL
SMF17CA from Shandong Jingdao Microelectronics, in a SOD-123FL. 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 | 1 | passive | Terminal 1 of the bidirectional (CA) TVS; the pinning table labels pin 1 as Cathode for the unipolar parts, but the bipolar symbol shows only terminals 1 and 2. |
| 2 | 2 | passive | Terminal 2 of the bidirectional (CA) TVS; the pinning table labels pin 2 as Anode for the unipolar parts, but the bipolar symbol shows only terminals 1 and 2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SOD-123FL |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage (minimum) | VBR | 18.9 | V | IT = 1 mA | 2 | ||
| Breakdown voltage (maximum) | VBR | 20.9 | V | IT = 1 mA | 2 | ||
| Reverse leakage current | IR | 1 | μA | VRWM = 17 V | 2 | ||
| Maximum clamp voltage | VC | 27.6 | V | IPP = 7.2 A | 2 | ||
| Peak pulse power dissipation | PPPM | 200 | W | TA=25°C (Note 1,2,5, Fig1) | 1 | ||
| Peak forward surge current | IFSM | 20 | A | (UNI), Note 3 | 1 | ||
| Steady state power dissipation | PM(AV) | 1 | W | Note 4; lead temperature TL (value garbled in source) | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Reverse stand-off voltage | VRWM | 17 | V | Note 6 | 2 | ||
| Typical thermal resistance, junction to ambient | RθJA | 180 | °C/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | 2. Mounted on 5mm copper pads to each terminal | 1 |
CAD (KiCad official)
- Symbol:
SMF17CA - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smf17ca-etched.step/smf17ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf17ca.step/smf17ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (4 pp, sha256
815402489fb37067, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).