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DL4739A

LGE · Zener Diodes · MELF

DL4739A from LGE, in a MELF. 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 cathode band on the glass body; positive with respect to the anode in zener (reverse) operation, with a 9.1 V nominal zener voltage at 28 mA test current for the DL4739 type.
2 A passive Anode, the terminal opposite the cathode band; forward voltage is 1.2 V max at IF=200 mA.

Key specifications

Parameter Value
Manufacturer LGE
Package MELF
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: DL4739A
  • Footprint: Diode_SMD:D_MELF
  • 3D model: MELF (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LGE datasheet (3 pp, sha256 a224b6085d68189f, retrieved 2026-10-13, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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