component

1SMA5941BT3G

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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1SMA5941BT3G

onsemi · Zener Diodes · SMA

1SMA5941BT3G 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 terminal, indicated by the polarity band; for 1SMA5941BT3G the reverse Zener voltage VZ is 44.65 V min to 49.35 V max at IZT = 8.0 mA.
2 ANODE passive Anode terminal; forward voltage VF is 1.2 V max at IF = 200 mA for all types in this series.

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 VZ 44.65 47 49.35 V @ IZT 8.0 mA 2
Zener voltage tolerance (type number designation) -5 5 % Type number designation ±5% 2
Maximum Zener Impedance ZZT 67 Ω @ IZT 8.0 mA 2
Maximum Zener Impedance ZZK 1000 Ω @ IZK 0.25 mA 2
Reverse Leakage Current IR 0.5 µA @ VR 35.8 V 2
Maximum DC Zener Current IZM 32 mA Maximum DC zener current 2
Forward Voltage VF 1.2 V @ IF = 200 mA 2
DC Power Dissipation PD 1.5 W @ TL = 75°C, measured zero lead length (Note 1) 1
Thermal Resistance, Junction-to-Lead RJL 50 °C/W Junction-to-lead, 1 in square copper pad, FR-4 (Note 1) 1
DC Power Dissipation PD 0.5 W @ TA = 25°C (Note 2) 1
Thermal Resistance, Junction-to-Ambient RJA 250 °C/W Junction-to-ambient, FR-4 minimum recommended footprint (Note 2) 1
Operating and Storage Temperature Range TJ, Tstg -65 150 °C Operating and storage temperature range 1

CAD (KiCad official)

  • Symbol: 1SMA5941BT3G
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: 1sma5941bt3g-etched.step / 1sma5941bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5941bt3g.step / 1sma5941bt3g.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 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed (audit)), 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