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1SMA4742_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
markdown1SMA4742_R1_00001
PANJIT International · Zener Diodes · SMA(DO-214AC)
1SMA4742_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, identified by the color band on the package (the color band denotes the cathode end); the 1SMA4742 zener is rated 12 V nominal (11.4 V to 12.6 V) at 21 mA test current. |
| 2 | Anode | passive | Anode terminal, the end opposite the color band, forming the forward terminal of the zener diode. |
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 | 11.4 | 12 | 12.6 | V | 1SMA4742 row: Nom 12 V, Min 11.4 V, Max 12.6 V | 2 | |
| Zener voltage tolerance | -5 | 5 | % | Standard tolerance on nominal zener voltage (Note C) | 1 | ||
| Max Zener Impedance | ZZT | 9 | Ω | @ IZT 21 mA | 2 | ||
| Max Zener Impedance | ZZK | 700 | Ω | @ IZK 0.25 mA | 2 | ||
| Max Reverse Leakage Current | IR | 0.1 | uA | @ VR 9.1 V | 2 | ||
| Power dissipation (rated) | PD | 1 | Watt | Header 'POWER 1 Watt'; derating vs lead temperature per Figure 1 | 1 |
CAD (KiCad official)
- Symbol:
1SMA4742_R1_00001 - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
1sma4742-r1-00001-etched.step/1sma4742-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma4742-r1-00001.step/1sma4742-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
7325aff8943c38a0, retrieved 2026-10-13, 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).