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1SMA4730A

Public Made by Adom

by adom

Shandong Jingdao Microelectronics Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1SMA4730A

Shandong Jingdao Microelectronics · Zener Diodes · SMA

1SMA4730A from Shandong Jingdao Microelectronics, in a 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 Cathode passive Cathode terminal of the zener diode, as listed in the PINNING table; the datasheet gives no separate electrical limit for this pin.
2 Anode passive Anode terminal of the zener diode, as listed in the PINNING table; the datasheet gives no separate electrical limit for this pin.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
Package 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 (min) VZT 3.7 V at IZT, tested with pulses (20 ms); 1SMA4730A row 2
Zener voltage (nominal) VZT 3.9 V at IZT = 64 mA; 1SMA4730A row 2
Zener voltage (max) VZT 4.1 V at IZT = 64 mA; 1SMA4730A row 2
Dynamic impedance ZZT 9 Ω at IZT = 64 mA 2
Reverse current IR 50 µA at VR = 1 V 2
Test current for VZT IZT 64 mA 1SMA4730A row 2
Power dissipation PD 1 W at Tc = 75°C 1
Forward voltage VF 1.2 V at IF = 200 mA 1
Junction temperature range TJ -55 150 °C 1
Storage temperature range TS -55 150 °C 1

CAD (KiCad official)

  • Symbol: 1SMA4730A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 1sma4730a-etched.step / 1sma4730a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma4730a.step / 1sma4730a.glb are the bare package body.

Provenance

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

  • Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256 296be0e2be372196, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (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