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Contents

README

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1N4733A-TAP

Vishay Intertech · Zener Diodes · DO-204AL(DO-41)

1N4733A-TAP from Vishay Intertech, 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 Vishay Intertech
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
Zener voltage tolerance VZ -5 5 % Standard Zener voltage tolerance (A-suffix device) 1
Power dissipation Ptot 1300 mW Leads at 4 mm from case kept at ambient temperature 1
Junction temperature Tj 175 °C 1
Storage temperature range Tstg -65 175 °C 1
Forward voltage VF 1.2 V IF = 200 mA 1
Reverse leakage current IR 10 µA VR = 1 V 2
Dynamic resistance (at IZT1) ZZT 7 Ω IZT1 = 49 mA; f = 1 kHz 2
Dynamic resistance (at IZT2) ZZK 550 Ω IZT2 = 1 mA; f = 1 kHz 2
Surge current 890 mA tp = 10 ms (note 3) 2
Regulator current IZM 178 mA Electrodes at 4 mm from case kept at ambient temperature (note 2) 2
Zener voltage (nominal) VZ 5.1 V IZT1 = 49 mA; thermal equilibrium, TL = 30 °C ± 1 °C, 9.5 mm from body (note 1) 2
Thermal resistance junction to ambient air RthJA 110 K/W Leads at 4 mm from case kept at ambient temperature 1

CAD (KiCad official)

  • Symbol: 1N4733A-TAP
  • 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: Vishay Intertech datasheet (4 pp, sha256 77e4ed74836abf79, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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).

Datasheet PDF