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SMF51CA
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Shandong Jingdao Microelectronics TVS, SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMF51CA
Shandong Jingdao Microelectronics · TVS · SOD-123FL
SMF51CA 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 | Cathode | passive | Cathode terminal of the SOD-123FL TVS diode; the datasheet's PINNING table gives no voltage or current limit for this pin. |
| 2 | Anode | passive | Anode terminal of the SOD-123FL TVS diode; the datasheet's PINNING table gives no voltage or current limit for this pin. |
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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation | PPPM | 200 | W | TA=25°C, 10/1000 us waveform (Note 1,2,5) | 1 | ||
| Breakdown Voltage | VBR | 56.7 | 62.7 | V | @ IT (test current 1 mA) | 2 | |
| Reverse Leakage Current | IR | 1 | µA | @ VRWM (51 V) | 2 | ||
| Max. Clamp Voltage | VC | 82.4 | V | @ IPP | 2 | ||
| Peak Pulse Current | IPP | 2.4 | A | 10/1000 us waveform (Note 1), see Table 1 | 2 | ||
| Steady State Power Dissipation | PM(AV) | 1 | W | TL=75°C (Note 4) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 1 | ||
| 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:
SMF51CA - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smf51ca-etched.step/smf51ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf51ca.step/smf51ca.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).
# SMF51CA
**Shandong Jingdao Microelectronics** · TVS · SOD-123FL
SMF51CA 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 | Cathode | passive | Cathode terminal of the SOD-123FL TVS diode; the datasheet's PINNING table gives no voltage or current limit for this pin. |
| 2 | Anode | passive | Anode terminal of the SOD-123FL TVS diode; the datasheet's PINNING table gives no voltage or current limit for this pin. |
## 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power Dissipation | PPPM | | | 200 | W | TA=25°C, 10/1000 us waveform (Note 1,2,5) | 1 |
| Breakdown Voltage | VBR | 56.7 | | 62.7 | V | @ IT (test current 1 mA) | 2 |
| Reverse Leakage Current | IR | | | 1 | µA | @ VRWM (51 V) | 2 |
| Max. Clamp Voltage | VC | | | 82.4 | V | @ IPP | 2 |
| Peak Pulse Current | IPP | | | 2.4 | A | 10/1000 us waveform (Note 1), see Table 1 | 2 |
| Steady State Power Dissipation | PM(AV) | | | 1 | W | TL=75°C (Note 4) | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | | 150 | °C | | 1 |
| 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: `SMF51CA`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `smf51ca-etched.step` / `smf51ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf51ca.step` / `smf51ca.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shandong Jingdao Microelectronics datasheet](docs/smf51ca-datasheet.pdf) (4 pp, sha256 `815402489fb37067`, retrieved 2026-10-21, 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/smf51ca-datasheet.pdf)