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SMF7.5AQ
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Yangzhou Yangjie Elec Tech ESD And Surge Protection (TVS/ESD), SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMF7.5AQ
Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · SOD-123FL
SMF7.5AQ from Yangzhou Yangjie Elec Tech, 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 | K | passive | Cathode of the unidirectional TVS, marked by the band on the package; connect to the protected positive line (VRWM 7.5 V, breakdown 8.33 V min to 9.21 V max at 1 mA). |
| 2 | A | passive | Anode of the unidirectional TVS, the end opposite the cathode band; connect to ground or the return line (clamping 12.9 V max at IPP 15.50 A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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 power dissipation | PPPM | 200 | W | with a 10/1000us waveform | 1 | ||
| Power dissipation, on infinite heat sink | PD | 0.4 | W | Ta=55℃ | 1 | ||
| Peak forward surge current | IFSM | 20 | A | 8.3 ms single half sine-wave | 1 | ||
| Operating junction temperature | TJ | -55 | 175 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 175 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 26 | ℃/W | Between junction and lead | 1 | ||
| Thermal resistance junction to ambient | RθJA | 300 | ℃/W | Between junction and Ambient | 1 | ||
| Thermal resistance junction to case | RθJC | 40 | ℃/W | Between junction and Curve | 1 | ||
| Breakdown voltage | VBR | 8.33 | 9.21 | V | IT=1 mA | 2 | |
| Maximum reverse leakage | IR | 50 | μA | @ VRWM | 2 | ||
| Working peak reverse voltage | VRWM | 7.5 | V | 2 | |||
| Maximum reverse surge current | IPP | 15.5 | A | Surge waveform per Fig. 2 and derated per Fig.3 | 2 | ||
| Maximum clamping voltage | Vc | 12.9 | V | @ IPP | 2 |
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 |
|---|---|---|---|---|
| housing | black | 4. Body color: Black | 4 | |
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
SMF7.5AQ - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smf7-5aq-etched.step/smf7-5aq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf7-5aq.step/smf7-5aq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
ee5ec921bff683ff, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# SMF7.5AQ
**Yangzhou Yangjie Elec Tech** · ESD And Surge Protection (TVS/ESD) · SOD-123FL
SMF7.5AQ from Yangzhou Yangjie Elec Tech, 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 | K | passive | Cathode of the unidirectional TVS, marked by the band on the package; connect to the protected positive line (VRWM 7.5 V, breakdown 8.33 V min to 9.21 V max at 1 mA). |
| 2 | A | passive | Anode of the unidirectional TVS, the end opposite the cathode band; connect to ground or the return line (clamping 12.9 V max at IPP 15.50 A). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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 power dissipation | PPPM | | | 200 | W | with a 10/1000us waveform | 1 |
| Power dissipation, on infinite heat sink | PD | | | 0.4 | W | Ta=55℃ | 1 |
| Peak forward surge current | IFSM | | | 20 | A | 8.3 ms single half sine-wave | 1 |
| Operating junction temperature | TJ | -55 | | 175 | ℃ | | 1 |
| Storage temperature range | TSTG | -55 | | 175 | ℃ | | 1 |
| Thermal resistance junction to lead | RθJL | | | 26 | ℃/W | Between junction and lead | 1 |
| Thermal resistance junction to ambient | RθJA | | | 300 | ℃/W | Between junction and Ambient | 1 |
| Thermal resistance junction to case | RθJC | | | 40 | ℃/W | Between junction and Curve | 1 |
| Breakdown voltage | VBR | 8.33 | | 9.21 | V | IT=1 mA | 2 |
| Maximum reverse leakage | IR | | | 50 | μA | @ VRWM | 2 |
| Working peak reverse voltage | VRWM | | 7.5 | | V | | 2 |
| Maximum reverse surge current | IPP | | | 15.5 | A | Surge waveform per Fig. 2 and derated per Fig.3 | 2 |
| Maximum clamping voltage | Vc | | | 12.9 | V | @ IPP | 2 |
## 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 |
|---|---|---|---|---|
| housing | | black | 4. Body color: Black | 4 |
| contacts | | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
## CAD (KiCad official)
- Symbol: `SMF7.5AQ`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `smf7-5aq-etched.step` / `smf7-5aq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf7-5aq.step` / `smf7-5aq.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/smf7-5aq-datasheet.pdf) (5 pp, sha256 `ee5ec921bff683ff`, 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/smf7-5aq-datasheet.pdf)