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DZL4738

LGE · Zener Diodes · SOD-123FL

DZL4738 from LGE, in a SOD-123FL. 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 K passive Cathode, marked by the laser band on the SOD-123FL package; the Zener voltage for DZL4738 is 7.79 V min, 8.2 V nom, 8.61 V max at IZT = 31 mA.
2 A passive Anode, the terminal opposite the cathode band; total power dissipation is 1.0 W with a junction temperature of 150 °C.

Key specifications

Parameter Value
Manufacturer LGE
Package SOD-123FL
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 (min/max) VZ 7.79 8.2 8.61 V @IZT 2
Zener test current IZT 31 mA 2
Zener impedance ZZT 4.5 Ω @IZT 2
Knee zener impedance ZZK 700 Ω @IZK = 0.5 mA 2
Leakage current IR 10 uA @VR = 6.0 V 2
Power dissipation PW 1 W TA = 25 °C 1
Junction temperature TJ 150 °C TA = 25 °C 1
Storage temperature range TSTG -55 150 °C TA = 25 °C 1

CAD (KiCad official)

  • Symbol: DZL4738
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: dzl4738-etched.step / dzl4738-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dzl4738.step / dzl4738.glb are the bare package body.

Provenance

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

  • Datasheet: LGE datasheet (2 pp, sha256 c6d82f84be6448d3, retrieved 2026-10-22, tier: lcsc)
  • 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