component
SMF4735A
Public Made by Adomby adom
amsem Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
SMF4735A
amsem · Zener Diodes · SOD-123
SMF4735A from amsem, in a SOD-123. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | amsem |
| Package | SOD-123 |
| 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 (Nom.V 6.2 V) | VZ | 5.9 | 6.2 | 6.5 | V | at IZT = 41 mA | 2 |
| Maximum zener impedance | ZZT | 2 | Ω | at IZT = 41 mA | 2 | ||
| Maximum zener impedance | ZZK | 700 | Ω | at IZK = 1.0 mA | 2 | ||
| Maximum leakage current | IR | 10 | µA | at VR = 3.0 V | 2 | ||
| Storage temperature range | TSTG | -55 | 175 | °C | 1 | ||
| Junction temperature range | TJ | -55 | 175 | °C | 1 | ||
| Maximum thermal resistance junction to ambient | RӨJA | 170 | K/W | junction to ambient in air (Note2: leads at ambient, 10 mm from case) | 1 | ||
| Peak pulse current wih a 10/1000μs waveform (value printed beside symbol VF) | VF | 1.2 | Volts | 1 |
CAD (KiCad official)
- Symbol:
SMF4735A - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
smf4735a-etched.step/smf4735a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf4735a.step/smf4735a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: amsem datasheet (5 pp, sha256
eb8bcc46788cafda, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# SMF4735A
**amsem** · Zener Diodes · SOD-123
SMF4735A from amsem, in a SOD-123. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | amsem |
| Package | SOD-123 |
| 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 (Nom.V 6.2 V) | VZ | 5.9 | 6.2 | 6.5 | V | at IZT = 41 mA | 2 |
| Maximum zener impedance | ZZT | | | 2 | Ω | at IZT = 41 mA | 2 |
| Maximum zener impedance | ZZK | | | 700 | Ω | at IZK = 1.0 mA | 2 |
| Maximum leakage current | IR | | | 10 | µA | at VR = 3.0 V | 2 |
| Storage temperature range | TSTG | -55 | | 175 | °C | | 1 |
| Junction temperature range | TJ | -55 | | 175 | °C | | 1 |
| Maximum thermal resistance junction to ambient | RӨJA | | 170 | | K/W | junction to ambient in air (Note2: leads at ambient, 10 mm from case) | 1 |
| Peak pulse current wih a 10/1000μs waveform (value printed beside symbol VF) | VF | | 1.2 | | Volts | | 1 |
## CAD (KiCad official)
- Symbol: `SMF4735A`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `smf4735a-etched.step` / `smf4735a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smf4735a.step` / `smf4735a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [amsem datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603117200278904832) (5 pp, sha256 `eb8bcc46788cafda`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/smf4735a-datasheet.pdf)