component

1SMA4733

Public Made by Adom

by adom

amsem Zener Diodes, DO-214AC(SMA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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1SMA4733

amsem · Zener Diodes · DO-214AC(SMA)

1SMA4733 from amsem, in a DO-214AC(SMA). 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 amsem
Package DO-214AC(SMA)
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 (standard, no A suffix) -10 10 % Standard 10%; suffix A = 5% (not this MPN) 1
Peak Power Dissipation PD 1 Watts TA=50 °C, mounted on 5.0 mm2 land areas (Note 1) 1
Peak Forward Surge Current IFSM 10 Amps 8.3 ms single half sine-wave superimposed on rated load, JEDEC method (Note 2) 1
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 1
Maximum Forward Voltage VF 1.2 V IF = 200 mA 2
Nominal Zener Voltage Vz 5.1 V @ IZT = 49 mA 2
Maximum Zener Impedance ZZT 7 Ohms @ IZT = 49 mA 2
Maximum Zener Impedance (knee) ZZK 550 Ohms @ IZK = 1.00 mA 2
Maximum Reverse Leakage Current IR 10 uA @ VR = 1.0 V 2
Power derating above 50 °C PD 6.67 mW/°C Derate above 50 °C ambient (Note 1) 1

CAD (KiCad official)

  • Symbol: 1SMA4733
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: 1sma4733-etched.step / 1sma4733-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma4733.step / 1sma4733.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: amsem datasheet (5 pp, sha256 641fed809a9c0149, retrieved 2026-10-15, tier: lcsc)
  • 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