component
1N4734ATA
Public Made by Adomby adom
Tak Cheong 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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Contents
README
markdown1N4734ATA
Tak Cheong · Zener Diodes · DO-41
1N4734ATA from Tak Cheong, 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 | Tak Cheong |
| 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 | VZ | 5.32 | 5.6 | 5.88 | V | IZT = 45 mA | 2 |
| Leakage current | IR | 10 | µA | VR = 2 V | 2 | ||
| Zener voltage standard tolerance | -5 | 5 | % | Standard tolerance on nominal zener voltage VZ | 2 | ||
| Maximum steady state power dissipation | PD | 1 | W | TL≤50℃, Lead Length = 3/8” | 1 | ||
| Power derating above 50℃ | PD | 6.67 | mW/℃ | Derate above 50℃ | 1 | ||
| Operating and storage temperature range | TJ, Tstg | -65 | 200 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | § Solder Hot Dip Tin (Sn) Lead Finish Specification Features: | 1 |
CAD (KiCad official)
- Symbol:
1N4734ATA - 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: Tak Cheong datasheet (3 pp, sha256
20c61d98f60a9f32, retrieved 2026-10-26, 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).