component

DL5246B

Public Made by Adom

by adom

YONGYUTAI Zener Diodes, LL-34. Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, KiCad symbol/footprint/3D.

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package.json Brief: a diode is polarised (pin 1 = cathode); the "Unpolarised two-terminal part" sentence was wrong · Ray
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DL5246B

YONGYUTAI · Zener Diodes · LL-34

DL5246B from YONGYUTAI, in a LL-34. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer YONGYUTAI
Package LL-34
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
Power dissipation at Tamb=25 C Ptot 500 mW Tamb=25 C, Note 1: leads at 10mm from case kept at ambient temperature 1
Junction temperature Tj 200 C 1
Storage temperature range TSTG -65 200 C 1
Forward voltage VF 1.1 V IF=200mA 1
Maximum Zener impedance ZZT 17 Ohms @IZT 7.8 mA 2
Maximum Zener impedance (knee) ZZK 600 Ohms ZZK@IZK=0.25mA 2
Maximum reverse leakage current IR 0.1 µA @VR 12 V 2
Maximum regulator current IZM 28 mA 2
Zener voltage tolerance (suffix B) -5 5 % Note 1: suffix B indicates +5% tolerance 2
Nominal Zener voltage Vz 16 V @IZT 7.8 mA 2
Test current IZT 7.8 mA 2
Typical temperature coefficient 0.083 %/°C 2
Thermal resistance junction ambient RθJA 0.3 K/mW Note 1: leads at 10mm from case kept at ambient temperature 1

CAD (KiCad official)

  • Symbol: DL5246B
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: LL-34 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: YONGYUTAI datasheet (3 pp, sha256 d741924a98eeecea, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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