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1SMA5922BT3G

Public Made by Adom

by adom

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

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1SMA5922BT3G

onsemi · Zener Diodes · SMA

1SMA5922BT3G 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 of the 1.5 W Zener regulator, marked by the molded polarity notch or cathode band; the datasheet gives no pin-specific limit, so use the device ratings (DC power dissipation 1.5 W at TL = 75 °C, operating and storage range −65 to +150 °C).
2 ANODE passive Anode of the Zener regulator; forward conduction is specified at VF = 1.5 V maximum at IF = 200 mA for all types.

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
Reverse Zener Voltage (1SMA5922BT3G, 5% type) VZ 7.12 7.5 7.88 V @ IZT = 50 mA; VZ guaranteed at thermal equilibrium (Note 4) 2
Maximum Zener Impedance ZZT 3 Ω @ IZT = 50 mA 2
Maximum Zener Impedance ZZK 400 Ω @ IZK = 0.5 mA 2
Reverse Leakage Current IR 2.5 µA @ VR = 6.0 V 2
Forward Voltage VF 1.5 V @ IF = 200 mA, for all types 2
Maximum DC Zener Current IZM 200 mA 2
Voltage tolerance (type number designation) -5 5 % Type number listed indicates 5% tolerance (Note 3) 2
DC Power Dissipation PD 1.5 W TL = 75°C, measured zero lead length (Note 1) 1
Derating above TL PD 20 mW/°C Derate above TL = 75°C 1
DC Power Dissipation PD 0.5 W TA = 25°C (Note 2) 1
Derating above TA PD 4 mW/°C Derate above TA = 25°C 1
Operating and Storage Temperature Range TJ, Tstg -65 150 °C 1
Thermal Resistance, Junction-to-Lead RJL 50 °C/W Junction-to-lead, 1 in² copper pad, FR-4 (Note 1) 1
Thermal Resistance, Junction-to-Ambient RJA 250 °C/W Junction-to-ambient, FR-4, minimum recommended footprint (Note 2) 1

CAD (KiCad official)

  • Symbol: 1SMA5922BT3G
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 1sma5922bt3g-etched.step / 1sma5922bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5922bt3g.step / 1sma5922bt3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 1ca169f64a35c9ee, retrieved 2026-10-21, tier: manufacturer)
  • 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