component

1SMA4761A

Public Made by Adom

by adom

TWGMC Zener Diodes, SMA(DO-214AC). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1SMA4761A

TWGMC · Zener Diodes · SMA(DO-214AC)

1SMA4761A from TWGMC, in a SMA(DO-214AC). 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 unipolar Zener diode; the datasheet gives no pin-specific electrical limits beyond the device ratings (PD 1 W at Tc=75°C, TJ and TS -55 to +150 °C).
2 Anode passive Anode terminal of the unipolar Zener diode; the datasheet gives no pin-specific electrical limits beyond the device ratings (PD 1 W at Tc=75°C, TJ and TS -55 to +150 °C).

Key specifications

Parameter Value
Manufacturer TWGMC
Package SMA(DO-214AC)
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/nom/max) at IZT VZT 71.2 75 78.8 V IZT = 3.3 mA; pulsed 20 ms 3
Dynamic impedance ZZT 175 Ω at IZT = 3.3 mA 3
Reverse current IR 1 μA at VR = 56 V 3
Admissible Zener current IZM 12 mA 3
Power dissipation PD 1 W Tc = 75 °C 1
Junction temperature range TJ -55 150 °C 1
Storage temperature range TS -55 150 °C 1

CAD (KiCad official)

  • Symbol: 1SMA4761A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: 1sma4761a-etched.step / 1sma4761a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma4761a.step / 1sma4761a.glb are the bare package body.

Provenance

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

  • Datasheet: TWGMC datasheet (4 pp, sha256 a0e1e0c1e7da0b66, 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