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1SMA4748_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
markdown1SMA4748_R1_00001
PANJIT International · Zener Diodes · SMA(DO-214AC)
1SMA4748_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 | K | passive | Cathode of the zener diode, marked by the color band on the package; operates at positive voltage relative to the anode in zener breakdown (1SMA4748 nominal 22 V at 11.5 mA). |
| 2 | A | passive | Anode of the zener diode, the end opposite the color band. |
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 | 20.9 | 22 | 23.1 | V | @ IZT = 11.5 mA | 2 |
| Zener Voltage Tolerance | -5 | 5 | % | standard tolerance on nominal zener voltage | 1 | ||
| Maximum Zener Impedance | ZZT | 23 | Ω | @ IZT = 11.5 mA | 2 | ||
| Maximum Zener Knee Impedance | ZZK | 750 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum Reverse Leakage Current | IR | 0.1 | uA | @ VR = 16.7 V | 2 | ||
| Zener Test Current | IZT | 11.5 | mA | 2 | |||
| Power Dissipation | PD | 1 | W | TA=50°C (Note A), reading uncertain | 1 |
CAD (KiCad official)
- Symbol:
1SMA4748_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
1sma4748-r1-00001-etched.step/1sma4748-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4748-r1-00001.step/1sma4748-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
b0cfed58932a36f3, 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).