component
1N4746A
Public Made by Adomby adom
LGE Zener Diodes, DO-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdown1N4746A
LGE · Zener Diodes · DO-41
1N4746A from LGE, in a DO-41. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | DO-41 |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage tolerance (A suffix, standard VZ tolerance) | VZ | -5 | 5 | % | Standard VZ tolerance is 5%; A suffix | 1 | |
| Maximum zener impedance | ZZT | 20 | Ω | @ IZT = 14 mA | 2 | ||
| Maximum zener impedance at knee | ZZK | 750 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 5 | µA | @ VR = 13.7 V | 2 | ||
| Max surge current (8.3 ms) | IZS | 250 | mA | 8.3 ms surge | 2 | ||
| Temperature coefficient | 0.06 | 0.09 | %/°C | Printed range 0.06 to 0.09 %/°C for 1N4746A | 2 | ||
| Power dissipation | Pd | 1 | W | Maximum Ratings @ TA = 25°C | 1 | ||
| Power dissipation derating | Pd | 6.67 | mW/°C | Derate above 50°C; leads kept at TL with lead length 9.5 mm (3/8 in) from case | 1 | ||
| Thermal resistance, junction to ambient air | RJA | 175 | °C/W | Junction to ambient air | 1 | ||
| Operating and storage temperature range | Tj,TSTG | -65 | 200 | °C | Operating and storage temperature range | 1 | |
| Forward voltage | VF | 1.2 | V | @ IF = 200 mA | 1 | ||
| Nominal zener voltage | VZ | 18 | V | @ IZT = 14 mA (test current) | 2 |
CAD (KiCad official)
- Symbol:
1N4746A - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (3 pp, sha256
cdb24074eada70f7, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).