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Contents

README

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1SMA5936BT3G

onsemi · Zener Diodes · SMA

1SMA5936BT3G from onsemi, 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 (polarity band) of the 30 V (28.5 V min to 31.5 V max at IZT = 12.5 mA) zener diode, which is positive relative to the anode in reverse zener regulation.
2 ANODE passive Anode of the zener diode; the datasheet gives a maximum forward voltage of 1.2 V at IF = 200 mA.

Key specifications

Parameter Value
Manufacturer onsemi
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 VZ 28.5 30 31.5 V @ IZT = 12.5 mA, TA = 25°C 2
Maximum Zener Impedance ZZT 26 Ω @ IZT = 12.5 mA 2
Maximum Zener Impedance at knee ZZK 750 Ω @ IZK = 0.25 mA 2
Reverse Leakage Current IR 0.5 µA @ VR = 22.8 V 2
Forward Voltage VF 1.2 V IF = 200 mA 2
Maximum DC Zener Current IZM 50 mA 2
DC Power Dissipation PD 1.5 W TL = 75°C, zero lead length, 1 in square copper pad FR-4 1
Derating above 75°C 20 mW/°C TL > 75°C 1
DC Power Dissipation PD 0.5 W TA = 25°C, FR-4 board, minimum recommended footprint 1
Derating above 25°C 4 mW/°C TA > 25°C 1
Operating and Storage Temperature Range TJ, Tstg -65 150 °C 1
Thermal Resistance, Junction-to-Lead RθJL 50 °C/W 1
Thermal Resistance, Junction-to-Ambient RθJA 250 °C/W FR-4 board, minimum recommended footprint 1
Zener Voltage Tolerance -5 5 % type number indicates ±5% 2

CAD (KiCad official)

  • Symbol: 1SMA5936BT3G
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 1sma5936bt3g-etched.step / 1sma5936bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5936bt3g.step / 1sma5936bt3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (6 pp, sha256 f462474d29a69587, retrieved 2026-10-22, tier: manufacturer)
  • 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