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1SMA4749_R1_00001
Public Made by Adomby adom
PANJIT International Zener Diodes, SMA(DO-214AC). 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
markdown1SMA4749_R1_00001
PANJIT International · Zener Diodes · SMA(DO-214AC)
1SMA4749_R1_00001 from PANJIT International, in a SMA(DO-214AC). 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, marked by the color band on the package, which denotes the cathode end. |
| 2 | Anode | passive | Anode terminal of the zener diode, located at the end opposite the color-band cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | SMA(DO-214AC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal zener voltage | VZ | 22.8 | 24 | 25.2 | V | IZT = 10.5 mA | 2 |
| Zener voltage tolerance | -5 | 5 | % | Standard tolerance on nominal zener voltage | 1 | ||
| Power dissipation | PD | 1 | W | TA = 50°C, mounted on 5mm2 land areas | 1 | ||
| Maximum zener impedance | ZZT | 25 | Ω | @ IZT = 10.5 mA | 2 | ||
| Maximum zener impedance (knee) | ZZK | 750 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 0.1 | µA | @ VR = 18.2 V | 2 |
CAD (KiCad official)
- Symbol:
1SMA4749_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
1sma4749-r1-00001-etched.step/1sma4749-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4749-r1-00001.step/1sma4749-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (8 pp, sha256
947ce785428cf345, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).