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Contents

README

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12F.05000063AG12S1B02

Xucheng Elec · Disposable Fuses · 1206

12F.05000063AG12S1B02 from Xucheng Elec, 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 One end-cap terminal of the 1206 (3.2 x 1.6 mm) quick-blow SMD fuse; the element is non-polarized and rated per catalog current (e.g. 5A) with breaking capacity 50A at rated DC voltage.
2 2 passive Other end-cap terminal of the 1206 quick-blow SMD fuse; interchangeable with the first terminal, soldering limits are wave 260°C for 5 s or hand 360°C for 1 s.

Key specifications

Parameter Value
Manufacturer Xucheng Elec
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
Operating time at 100% of rated current (12F quick-blow) 4 h 100% In; 12F series time-current table 4
Operating time at 250% of rated current (12F quick-blow) 5 s 250% In; column printed as 250% (250mA-3A); mapping of the 12F row cells is ambiguous 4
Operating time at 350% of rated current (12F quick-blow) 5 s 350% In; column printed as 350% (4A-20A); mapping of the 12F row cells is ambiguous 4
Maximum temperature rise 135 K 1 x In applied for 1 h, measured after thermal equilibrium within 2 h 4
Storage temperature 5 35 °C Storage conditions 6
Storage humidity 25 75 % Storage conditions 6
Wave solder temperature 260 °C Wave solder (RoHS) 6
Wave solder time 5 s Wave solder (RoHS) 6
Hand solder temperature 360 °C Hand solder (RoHS) 6
Hand solder time 1 s Hand solder (RoHS) 6

CAD (KiCad official)

  • Symbol: 12F.05000063AG12S1B02
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: 12f-05000063ag12s1b02-etched.step / 12f-05000063ag12s1b02-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 12f-05000063ag12s1b02.step / 12f-05000063ag12s1b02.glb are the bare package body.

Provenance

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

  • Datasheet: Xucheng Elec datasheet (9 pp, sha256 4b1968f45e8af532, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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