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1N5260BPF

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ST(Semtech) Zener Diodes, DO-35. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1N5260BPF

ST(Semtech) · Zener Diodes · DO-35

1N5260BPF 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, marked by the cathode band on the DO-35 glass case; this is the Zener voltage reference terminal (VZnom 43 V for 1N5260B, 40.85 to 45.15 V at IZT 3 mA).
2 A passive Anode, the lead opposite the cathode band on the DO-35 glass case; forward voltage VF max 1.1 V at IF = 200 mA.

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 (min/max) VZT 40.85 43 45.15 V at IZT = 3 mA, tested with pulses tp = 20 ms 2
Dynamic Resistance ZZT 93 Ω at IZT = 3 mA 2
Dynamic Resistance (knee) ZZK 900 Ω at IZK = 0.25 mA 2
Reverse Current IR 0.1 µA at VR = 33 V 2
Temperature Coefficient of Zener Voltage TKVZ 0.095 %/K printed <+0.095 2
Forward Voltage VF 1.1 V at IF = 200 mA 2
Zener Voltage Tolerance (B suffix) -5 5 % suffix B 1
Power Dissipation Ptot 500 mW Ta = 25℃ 1
Junction Temperature Tj 175 ℃ Ta = 25℃ 1
Storage Temperature Range Tstg -65 175 ℃ Ta = 25℃ 1
Thermal Resistance Junction to Ambient RθJA 300 ℃/W leads kept at ambient temperature at a distance of 8 mm from case 1

CAD (KiCad official)

  • Symbol: 1N5260BPF
  • 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 2026-10-22, 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