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Contents

README

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0501015.WR1

Littelfuse · Disposable Fuses · 1206

0501015.WR1 from Littelfuse, in a 1206. 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 1 passive Fuse termination (Ag/Ni/Sn) at one end of the 1206 ceramic body, 15 A rated at 32 V max, nominal resistance 0.00250 Ohm; non-polarized and interchangeable with the other terminal.
2 2 passive Fuse termination (Ag/Ni/Sn) at the opposite end of the 1206 ceramic body, 15 A rated at 32 V max, 150 A DC interrupting rating at 32 VDC; non-polarized and interchangeable with the other terminal.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 1206
Category Circuit Protection
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
Ampere rating (rated current) for amp code 015. 15 A Ampere rating, amp code 015. 1
Max. voltage rating 32 V 1
Nominal resistance 0.0025 Ohms Measured with < 10% rated current 1
Nominal melting I2t 36.1 A2Sec. Measured at 1 msec. opening time 1
Nominal voltage drop at rated current 0.04605 V Measured at rated current after temperature stabilized, fuse mounted on board with 3-oz Cu trace 1
Nominal power dissipation at rated current 0.6908 W At rated current 1
Opening time at 100% of ampere rating 4 hours 100% of ampere rating, 10A-20A range, at 25ºC; devices designed to carry rated current for 4 hours minimum 1
Opening time at 350% of ampere rating 5 seconds 350% of ampere rating, 10A-20A range, at 25ºC 1
Operating temperature -55 150 ºC 1
Recommended continuous operating current 80 % Continuous operation, percent of rated current 1
Peak reflow temperature 260 °C Pb-free reflow; do not exceed 260°C 2
Wave soldering temperature 260 °C Wave soldering, 10 seconds max 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass 3

CAD (KiCad official)

  • Symbol: 0501015.WR1
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: 0501015-wr1-etched.step / 0501015-wr1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 0501015-wr1.step / 0501015-wr1.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (3 pp, sha256 d5cc954818a4bbed, retrieved 2026-10-18, 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