component

1SMA4757A-MS

Public Made by Adom

by adom

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

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1SMA4757A-MS

MSKSEMI · Zener Diodes · DO-214AC(SMA)

1SMA4757A-MS from MSKSEMI, 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 Cathode passive Cathode of the zener diode; the 1SMA4757A-MS has a 51 V nominal zener voltage (48.6 V to 54.0 V) and is rated at 1 W maximum power dissipation.
2 A passive Anode of the zener diode; connects to the lower potential side in normal reverse-biased zener operation.

Key specifications

Parameter Value
Manufacturer MSKSEMI
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
Forward voltage VF 1.2 V IF = 200 mA, Ta = 25 °C 3
Power dissipation PD 1 W Tc = 75 °C 3
Junction temperature range TJ -55 150 °C 3
Storage temperature range TS -55 150 °C 3

CAD (KiCad official)

  • Symbol: 1SMA4757A-MS
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: 1sma4757a-ms-etched.step / 1sma4757a-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma4757a-ms.step / 1sma4757a-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (6 pp, sha256 779c5c0d81f9ab38, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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