component

1N5261B

Public Made by Adom

by adom

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.

componentdiodes1n5261bfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 8d ago
viewers 1n5261b: viewers · Ray 8d ago
1n5261b-hero.glb Publish 0.1.0 · Ray 8d ago
1n5261b-hero.overlay.json Publish 0.1.0 · Ray 8d ago
1n5261b.glb Publish 0.1.0 · Ray 8d ago
1n5261b.kicad_mod Publish 0.1.0 · Ray 8d ago
1n5261b.kicad_sym Publish 0.1.0 · Ray 8d ago
1n5261b.lbr Publish 0.1.0 · Ray 8d ago
1n5261b.step Publish 0.1.0 · Ray 8d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago

1N5261B

ST Semtech · Zener Diodes · DO-35

1N5261B 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 tolerance (suffix B) -5 5 % Suffix B = ±5% tolerance 1
Nominal Zener voltage VZnom 47 V 2
Zener voltage (min) VZT 44.65 V at IZT = 2.7 mA; tested with pulses tp = 20 ms 2
Zener voltage (max) VZT 49.35 V at IZT = 2.7 mA; tested with pulses tp = 20 ms 2
Dynamic resistance ZZT 105 Ω at IZT = 2.7 mA 2
Dynamic resistance (knee) ZZK 1000 Ω at IZK = 0.25 mA 2
Reverse current IR 0.1 µA at VR = 36 V 2
Temperature coefficient of Zener voltage TKVZ 0.095 %/K 2
Forward voltage VF 1.1 V at IF = 200 mA 1
Power dissipation (rated) Ptot 500 mW Leads kept at ambient temperature at a distance of 8 mm from case 1
Junction temperature Tj 200 °C 1
Storage temperature range Tstg -65 200 °C 1
Thermal resistance junction to ambient air RθJA 0.3 K/mW Leads kept at ambient temperature at a distance of 8 mm from case 1

CAD (KiCad official)

  • Symbol: 1N5261B
  • 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 145a2cc73d36c0da, retrieved 2026-10-14, 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