component
1SMA4743_R1_10001
Public Made by Adomby adom
PANJIT International Zener Diodes, 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
markdown1SMA4743_R1_10001
PANJIT International · Zener Diodes · SMA
1SMA4743_R1_10001 from PANJIT International, 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 surface mount silicon zener diode, marked by the color band at the cathode end of the body; the device is rated 1 W with a nominal zener voltage of 13 V for 1SMA4743. |
| 2 | Anode | passive | Anode terminal of the surface mount silicon zener diode, opposite the cathode end; the device has a peak forward surge current rating of 10 A (8.3 ms half sine-wave). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal zener voltage | VZ | 12.35 | 13 | 13.65 | V | 2 | |
| Zener voltage tolerance (standard, type number designation) | -5 | 5 | % | Standard tolerance on nominal zener voltage per Note C | 1 | ||
| Maximum zener impedance | ZZT | 10 | Ω | at IZT = 19 mA | 2 | ||
| Maximum zener impedance (knee) | ZZK | 700 | Ω | at IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 0.1 | uA | at VR = 9.9 V | 2 | ||
| Power dissipation | PD | 1 | W | on T=50°C (Notes A); derate above 50°C | 1 | ||
| Peak forward surge current | IFSM | 10 | A | 8.3ms single half sine-wave superimposed on rated load | 1 | ||
| Operating junction and storage temperature range | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 150 | °C/W | Notes D (minimum recommended pad layout) | 1 |
CAD (KiCad official)
- Symbol:
1SMA4743_R1_10001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma4743-r1-10001-etched.step/1sma4743-r1-10001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4743-r1-10001.step/1sma4743-r1-10001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (8 pp, sha256
d500ab292ff58520, retrieved 2026-10-14, 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).