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1SMA5937B

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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1SMA5937B

Shandong Jingdao Microelectronics · Zener Diodes · SMA

1SMA5937B 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, identified in the PINNING table on page 1 with the SMA top view and symbol.
2 Anode passive Anode terminal of the Zener diode, identified in the PINNING table on page 1 with the SMA top view and symbol.

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 (nominal 33 V row) VZT 31.3 33 34.9 V At IZT; VZT tested with pulses (20 ms) 2
Zener voltage tolerance (suffix B) -5 5 % Suffix B indicates ±5% tolerance 2
Admissible Zener Current IZM 45 mA 2
Power Dissipation PD 1.5 W At TL=75°C; P.C.B. mounted with 1.0 X 1.0 in (2.54 X 2.54 cm) copper pad areas 1
Junction Temperature Range TJ -55 150 °C 1
Storage Temperature Range TS -55 150 °C 1

CAD (KiCad official)

  • Symbol: 1SMA5937B
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 1sma5937b-etched.step / 1sma5937b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5937b.step / 1sma5937b.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 9807a99f64c13b56, retrieved 2026-10-15, 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