component
1SMA4728AG
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Shikues Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1SMA4728AG
Shikues · Zener Diodes · SMA
1SMA4728AG from Shikues, in a 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 | Cathode | passive | Cathode terminal of the zener diode (pin 1 in the SMA pinning table); the zener voltage is 3.3 V nominal for the 1SMA4728AG. |
| 2 | Anode | passive | Anode terminal of the zener diode (pin 2 in the SMA pinning table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZT | 3.1 | 3.3 | 3.5 | V | at IZT = 75 mA, pulse 20 ms | 2 |
| Test Current | IZT | 75 | mA | 2 | |||
| Dynamic Impedance | ZZT | 10 | Ω | at IZT | 2 | ||
| Reverse Current | IR | 100 | μA | at VR = 1 V | 2 | ||
| Power Dissipation | PD | 1 | W | at Tc=75°C | 1 | ||
| Forward Voltage | VF | 1.2 | V | IF = 200 mA | 1 | ||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TS | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
1SMA4728AG - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma4728ag-etched.step/1sma4728ag-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4728ag.step/1sma4728ag.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shikues datasheet (3 pp, sha256
6d97a16d1a7af2a2, retrieved 2026-10-23, 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).
# 1SMA4728AG
**Shikues** · Zener Diodes · SMA
1SMA4728AG from Shikues, in a 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 | Cathode | passive | Cathode terminal of the zener diode (pin 1 in the SMA pinning table); the zener voltage is 3.3 V nominal for the 1SMA4728AG. |
| 2 | Anode | passive | Anode terminal of the zener diode (pin 2 in the SMA pinning table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shikues |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Zener Voltage | VZT | 3.1 | 3.3 | 3.5 | V | at IZT = 75 mA, pulse 20 ms | 2 |
| Test Current | IZT | | 75 | | mA | | 2 |
| Dynamic Impedance | ZZT | | | 10 | Ω | at IZT | 2 |
| Reverse Current | IR | | | 100 | μA | at VR = 1 V | 2 |
| Power Dissipation | PD | | | 1 | W | at Tc=75°C | 1 |
| Forward Voltage | VF | | | 1.2 | V | IF = 200 mA | 1 |
| Junction Temperature Range | TJ | -55 | | 150 | °C | | 1 |
| Storage Temperature Range | TS | -55 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `1SMA4728AG`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma4728ag-etched.step` / `1sma4728ag-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma4728ag.step` / `1sma4728ag.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shikues datasheet](docs/1sma4728ag-datasheet.pdf) (3 pp, sha256 `6d97a16d1a7af2a2`, retrieved 2026-10-23, 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/1sma4728ag-datasheet.pdf)