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1SMA4728A-MS
Public Made by Adomby adom
MSKSEMI Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1SMA4728A-MS
MSKSEMI · Zener Diodes · DO-214AC(SMA)
1SMA4728A-MS from MSKSEMI, 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 | Cathode | passive | Cathode of the zener diode; the datasheet pinning table lists pin 1 as Cathode, and the part has a max total power dissipation of 1 W. |
| 2 | A | passive | Anode of the zener diode; the datasheet pinning table lists pin 2 as Anode (printed as 'A node'), and forward voltage is 1.2 V max at IF = 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Power dissipation | PD | 1 | W | Tc=75°C | 3 | ||
| Forward voltage | VF | 1.2 | V | IF=200 mA | 3 | ||
| Junction temperature range | TJ | -55 | 150 | °C | 3 | ||
| Storage temperature range | TS | -55 | 150 | °C | 3 |
CAD (KiCad official)
- Symbol:
1SMA4728A-MS - Footprint:
Diode_SMD:D_SMA - 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files:
1sma4728a-ms-etched.step/1sma4728a-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4728a-ms.step/1sma4728a-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
779c5c0d81f9ab38, 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).