component
SML4745-E3
Public Made by Adomby adom
Vishay Intertech Zener Diodes, DO-214AC(SMA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
main
SML4745-E3
Vishay Intertech · Zener Diodes · DO-214AC(SMA)
SML4745-E3 from Vishay Intertech, in a DO-214AC(SMA). 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 | Vishay Intertech |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Dynamic resistance (max) | ZZ | 16 | Ω | at IZT1 = 15.5 mA | 2 | ||
| Dynamic resistance at IZT2 (max) | ZZK | 700 | Ω | at IZT2 = 0.25 mA | 2 | ||
| Reverse current (max) | IR | 5 | μA | at VR = 12.2 V | 2 | ||
| Surge current (max) | IRM | 285 | mApk | non-repetitive 8.3 ms pulse superimposed on IZT (Note 1) | 2 | ||
| Zener voltage tolerance (standard, no suffix A) | VZ | -10 | 10 | % | 1 | ||
| Nominal zener voltage | VZ | 16 | V | at IZT1 = 15.5 mA | 2 | ||
| Power dissipation | Ptot | 1000 | mW | TL = 75 °C | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SML4745-E3 - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
sml4745-e3-etched.step/sml4745-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sml4745-e3.step/sml4745-e3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
15b3fea9a6e65941, retrieved 2026-10-15, 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).
# SML4745-E3
**Vishay Intertech** · Zener Diodes · DO-214AC(SMA)
SML4745-E3 from Vishay Intertech, in a DO-214AC(SMA). 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 | Vishay Intertech |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Dynamic resistance (max) | ZZ | | | 16 | Ω | at IZT1 = 15.5 mA | 2 |
| Dynamic resistance at IZT2 (max) | ZZK | | | 700 | Ω | at IZT2 = 0.25 mA | 2 |
| Reverse current (max) | IR | | | 5 | μA | at VR = 12.2 V | 2 |
| Surge current (max) | IRM | | | 285 | mApk | non-repetitive 8.3 ms pulse superimposed on IZT (Note 1) | 2 |
| Zener voltage tolerance (standard, no suffix A) | VZ | -10 | | 10 | % | | 1 |
| Nominal zener voltage | VZ | | 16 | | V | at IZT1 = 15.5 mA | 2 |
| Power dissipation | Ptot | | | 1000 | mW | TL = 75 °C | 1 |
| Junction temperature | Tj | | | 150 | °C | | 1 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `SML4745-E3`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `sml4745-e3-etched.step` / `sml4745-e3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml4745-e3.step` / `sml4745-e3.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Vishay Intertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838349184757760) (5 pp, sha256 `15b3fea9a6e65941`, retrieved 2026-10-15, 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/sml4745-e3-datasheet.pdf)