component
SMF4751A
Public Made by Adomby adom
ZHIDE Zener Diodes, SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMF4751A
ZHIDE · Zener Diodes · SOD-123FL
SMF4751A from ZHIDE, 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, the end marked by the color band; the Zener voltage of the SMF4751A is 30.0 V nominal (28.50 to 31.50 V) at IZT = 8.5 mA. |
| 2 | A | passive | Anode, the end opposite the color band; maximum forward voltage is 1.2 V at IF = 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage minimum | VZ MIN | 28.5 | V | @IZT | 3 | ||
| Zener Voltage maximum | VZ MAX | 31.5 | V | @IZT | 3 | ||
| Maximum Zener Impedance | ZZT | 40 | Ω | @IZT | 3 | ||
| Maximum Zener Impedance at knee | ZZK | 1000 | Ω | @IZK | 3 | ||
| Maximum Reverse Leakage Current | IR | 0.5 | uA | @VR = 22.8 V | 3 | ||
| Maximum DC Zener Current | IZM | 30 | mA | 3 | |||
| DC Power dissipation | PD | 1 | W | TL = 75 °C | 1 | ||
| Maximum forward voltage | VF | 1.2 | V | if=200mA | 1 | ||
| Junction temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Nominal Zener Voltage | VZ AVE | 30 | V | @IZT | 3 | ||
| Test current | IZT | 8.5 | mA | 3 | |||
| Knee current | IZK | 0.25 | mA | 3 |
CAD (KiCad official)
- Symbol:
SMF4751A - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smf4751a-etched.step/smf4751a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf4751a.step/smf4751a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHIDE datasheet (3 pp, sha256
c1c1f3bc25a0feef, 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).
# SMF4751A
**ZHIDE** · Zener Diodes · SOD-123FL
SMF4751A from ZHIDE, 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, the end marked by the color band; the Zener voltage of the SMF4751A is 30.0 V nominal (28.50 to 31.50 V) at IZT = 8.5 mA. |
| 2 | A | passive | Anode, the end opposite the color band; maximum forward voltage is 1.2 V at IF = 200 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHIDE |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage minimum | VZ MIN | 28.5 | | | V | @IZT | 3 |
| Zener Voltage maximum | VZ MAX | | | 31.5 | V | @IZT | 3 |
| Maximum Zener Impedance | ZZT | | | 40 | Ω | @IZT | 3 |
| Maximum Zener Impedance at knee | ZZK | | | 1000 | Ω | @IZK | 3 |
| Maximum Reverse Leakage Current | IR | | | 0.5 | uA | @VR = 22.8 V | 3 |
| Maximum DC Zener Current | IZM | | | 30 | mA | | 3 |
| DC Power dissipation | PD | | | 1 | W | TL = 75 °C | 1 |
| Maximum forward voltage | VF | | | 1.2 | V | if=200mA | 1 |
| Junction temperature range | TJ, TSTG | -55 | | 150 | ℃ | | 1 |
| Storage temperature range | TJ, TSTG | -55 | | 150 | ℃ | | 1 |
| Nominal Zener Voltage | VZ AVE | | 30 | | V | @IZT | 3 |
| Test current | IZT | | 8.5 | | mA | | 3 |
| Knee current | IZK | | 0.25 | | mA | | 3 |
## CAD (KiCad official)
- Symbol: `SMF4751A`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `smf4751a-etched.step` / `smf4751a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf4751a.step` / `smf4751a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ZHIDE datasheet](docs/smf4751a-datasheet.pdf) (3 pp, sha256 `c1c1f3bc25a0feef`, 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/smf4751a-datasheet.pdf)