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1SMA4750_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
markdown1SMA4750_R1_00001
PANJIT International · Zener Diodes · SMA(DO-214AC)
1SMA4750_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; the 1SMA4750 is a 27V nominal (25.65V to 28.35V at IZT 9.5mA) 1W zener. |
| 2 | A | passive | Anode of the zener diode; the 1SMA4750 has a 27V nominal zener voltage and 1W power dissipation rating. |
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 | 25.65 | 27 | 28.35 | V | @ IZT = 9.5 mA | 2 |
| Zener Test Current | IZT | 9.5 | mA | 2 | |||
| Maximum Zener Impedance | ZZT | 35 | Ω | @ IZT = 9.5 mA | 2 | ||
| Maximum Zener Knee Impedance | ZZK | 750 | Ω | @ IZK = 0.25 mA | 2 | ||
| Max Reverse Leakage Current | IR | 0.1 | uA | @ VR = 20.6 V | 2 | ||
| Zener Voltage Tolerance | -5 | 5 | % | standard tolerance on nominal zener voltage | 1 | ||
| Peak Power Dissipation | PD | 1 | W | TA = 50°C, Note A | 1 | ||
| Peak Forward Surge Current | IFSM | 10 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
CAD (KiCad official)
- Symbol:
1SMA4750_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
1sma4750-r1-00001-etched.step/1sma4750-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4750-r1-00001.step/1sma4750-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
c9a01615c783ac72, 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).