component
1N4741A
Public Made by Adomby adom
LangJie Zener Diodes, DO-204AL(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
markdown1N4741A
LangJie · Zener Diodes · DO-204AL(DO-41)
1N4741A from LangJie, in a DO-204AL(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 | LangJie |
| Package | DO-204AL(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 |
|---|---|---|---|---|---|---|---|
| Nominal Zener voltage | VZ | 10.45 | 11 | 11.55 | V | @ IZT = 23.0 mA; VZT tested with pulses (20 ms) | 2 |
| Maximum Zener impedance | ZZT | 8 | Ω | @ IZT = 23.0 mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 700 | Ω | @ IZK = 0.25 mA | 2 | ||
| Maximum reverse leakage current | IR | 5 | uA | @ VR = 8.4 V | 2 | ||
| Maximum DC Zener current | IZM | 83 | mA | 2 | |||
| Maximum Zener surge current | IRM | 414 | mAPK | 2 | |||
| Power dissipation | Ptot | 1 | W | at Tc = 75°C | 1 | ||
| Forward voltage | VF | 1.2 | Volts | at IF = 200 mA | 1 | ||
| Junction temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
1N4741A - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-204AL(DO-41) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LangJie datasheet (5 pp, sha256
e779880c24a5a0eb, retrieved 2026-10-15, 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).