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1N5245BPF

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ST Semtech Zener Diodes, DO-35. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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1N5245BPF

ST Semtech · Zener Diodes · DO-35

1N5245BPF from ST Semtech, in a DO-35. 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 ST Semtech
Package DO-35
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 (VZT) at IZT VZT 14.25 15 15.75 V at IZT = 8.5 mA; tested with pulses tp = 20 ms; VZnom 15 V 2
Dynamic resistance ZZT ZZT 16 Ω at IZT = 8.5 mA 2
Dynamic resistance ZZK ZZK 600 Ω at IZK = 0.25 mA 2
Reverse current IR IR 0.1 µA at VR = 11 V 2
Temperature coefficient of Zener voltage TKVZ TKVZ 0.082 %/K 2
Forward voltage VF VF 1.1 V at IF = 200 mA 2
Zener voltage tolerance (suffix B) -5 5 % Suffix B = ±5% tolerance 1
Power dissipation Ptot Ptot 500 mW Ta = 25℃ 1
Junction temperature Tj Tj 175 ℃ 1
Storage temperature range Tstg Tstg -65 175 ℃ 1
Thermal resistance junction to ambient RθJA RθJA 300 ℃/W Leads kept at ambient temperature at a distance of 8 mm from case 1

CAD (KiCad official)

  • Symbol: 1N5245BPF
  • Footprint: Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal
  • 3D model: DO-35 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: ST Semtech datasheet (3 pp, sha256 ef97e3baf80e09cf, retrieved 2026-10-15, 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