component

SZ1SMA5923BT3G

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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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sz1sma5923bt3g-etched.step sz1sma5923bt3g: factory component page (tier=mfr) · Ray 2d ago
sz1sma5923bt3g-hero.glb sz1sma5923bt3g: hero GLB from the etched model (keeps the MPN mark) · Ray 2d ago
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SZ1SMA5923BT3G

onsemi · Zener Diodes · SMA

SZ1SMA5923BT3G 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 zener diode, marked by the polarity band/notch; operates at positive voltage relative to the anode in reverse zener regulation (VZ 7.79 V min, 8.2 V nom, 8.61 V max at IZT = 45.7 mA for the 5923B).
2 ANODE passive Anode of the zener diode; forward voltage VF is 1.2 V max 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 7.79 8.2 8.61 V @ IZT = 45.7 mA, TA = 25°C 2
Test Current IZT 45.7 mA TA = 25°C 2
Maximum Zener Impedance ZZT 3.5 Ω @ IZT = 45.7 mA 2
Maximum Zener Impedance ZZK 400 Ω @ IZK = 0.5 mA 2
Reverse Leakage Current IR 2.5 A @ VR = 6.5 V 2
Forward Voltage VF 1.2 V @ IF = 200 mA, all types 2
Maximum DC Zener Current IZM 183 mA 2
DC Power Dissipation PD 1.5 W TL = 75°C, zero lead length, 1 in square copper pad FR-4 1
Derate 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
Derate 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 in square copper pad, FR-4 board 1
Thermal Resistance, Junction-to-Ambient RθJA 250 °C/W FR-4 board, minimum recommended footprint 1
Zener Voltage Tolerance VZ -5 5 % type number indicates tolerance of ±5% 2

CAD (KiCad official)

  • Symbol: SZ1SMA5923BT3G
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA (KiCad packages3D, STEP)
  • 3D model files: sz1sma5923bt3g-etched.step / sz1sma5923bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sz1sma5923bt3g.step / sz1sma5923bt3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (6 pp, sha256 519ac27d44cbe205, 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