component
SML4751-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.
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SML4751-E3
Vishay Intertech · Zener Diodes · DO-214AC(SMA)
SML4751-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 |
|---|---|---|---|---|---|---|---|
| Voltage tolerance (standard, no suffix A) | VZ | -10 | 10 | % | Standard tolerance; suffix A is ±5% | 1 | |
| Reverse current | IR | 5 | μA | at VR = 22.8 V | 2 | ||
| Dynamic resistance | ZZ | 40 | Ω | at IZT1 = 8.5 mA | 2 | ||
| Dynamic resistance (knee) | ZZK | 1000 | Ω | at IZT2 = 0.25 mA | 2 | ||
| Surge current | IRM | 150 | mApk | Non-repetitive 8.3 ms pulse, square wave or sine superimposed on IZT per JEDEC (note 1) | 2 | ||
| Power dissipation | Ptot | 1000 | mW | TL = 75 °C | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Nominal Zener voltage | VZ | 30 | V | at IZT1 = 8.5 mA (NOM. column) | 2 |
CAD (KiCad official)
- Symbol:
SML4751-E3 - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
sml4751-e3-etched.step/sml4751-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sml4751-e3.step/sml4751-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 2026-10-14, 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).
# SML4751-E3
**Vishay Intertech** · Zener Diodes · DO-214AC(SMA)
SML4751-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 |
|---|---|---|---|---|---|---|---|
| Voltage tolerance (standard, no suffix A) | VZ | -10 | | 10 | % | Standard tolerance; suffix A is ±5% | 1 |
| Reverse current | IR | | | 5 | μA | at VR = 22.8 V | 2 |
| Dynamic resistance | ZZ | | | 40 | Ω | at IZT1 = 8.5 mA | 2 |
| Dynamic resistance (knee) | ZZK | | | 1000 | Ω | at IZT2 = 0.25 mA | 2 |
| Surge current | IRM | | | 150 | mApk | Non-repetitive 8.3 ms pulse, square wave or sine superimposed on IZT per JEDEC (note 1) | 2 |
| Power dissipation | Ptot | | | 1000 | mW | TL = 75 °C | 1 |
| Junction temperature | Tj | | | 150 | °C | | 1 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 1 |
| Nominal Zener voltage | VZ | | 30 | | V | at IZT1 = 8.5 mA (NOM. column) | 2 |
## CAD (KiCad official)
- Symbol: `SML4751-E3`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `sml4751-e3-etched.step` / `sml4751-e3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sml4751-e3.step` / `sml4751-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/8603011815010295808) (5 pp, sha256 `15b3fea9a6e65941`, retrieved 2026-10-14, 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/sml4751-e3-datasheet.pdf)