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Contents

README

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R12.100.20

Reomax · Disposable Fuses · 1206

R12.100.20 from Reomax, 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 terminal 1 (silver over-plated with tin end cap) of the 3.20 x 1.60 mm 1206 body; the two terminals are interchangeable, and the part is rated 20A for the R12.100.20.
2 2 passive Fuse terminal 2 (silver over-plated with tin end cap) of the 3.20 x 1.60 mm 1206 body; the two terminals are interchangeable, and the part is rated 20A for the R12.100.20.

Key specifications

Parameter Value
Manufacturer Reomax
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 temperature -55 125 °C Consult temperature rerating curve chart 2
Rated current 20 A R12.100.20 rated current 1
Opening time at 100% of amp rating 4 hours 100% of amp rating, rated current, 4 hours min 1
Opening time at 350% of amp rating 5 s 6A~30A, 350% of amp rating, 5.0 s max 1
Opening time at 1000% of amp rating 0.2 20 ms 250mA~30A, 1000% of amp rating 1
Preheat temperature Ts(min) Ts(min) 150 °C Pb-free reflow 2
Preheat temperature Ts(max) Ts(max) 200 °C Pb-free reflow 2
Preheat time ts ts 60 120 seconds Pb-free reflow, 60, 120 seconds 2
Liquidus temperature TL TL 217 °C Pb-free reflow 2
Time above liquidus tL tL 60 150 seconds Pb-free reflow, 60, 150 seconds 2
Peak temperature TP TP 260 °C Pb-free reflow, printed as 260+0/-5 °C 2
Time within 5°C of peak temperature tp tp 30 seconds Pb-free reflow, within 5°C of actual peak 2
Time 25°C to peak temperature 8 minutes Pb-free reflow, 8 minutes max 2
Hand-solder iron temperature 280 °C Solder iron temperature 280±5°C, hand-soldering not generally recommended 2
Hand-solder heating time 5 seconds Heating time 5 seconds min 2
Solder pot temperature 260 °C Solder pot temperature 260°C max 2
Solder dwell time 10 seconds Solder dwell time 10 seconds max 2

CAD (KiCad official)

  • Symbol: R12.100.20
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: r12-100-20-etched.step / r12-100-20-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); r12-100-20.step / r12-100-20.glb are the bare package body.

Provenance

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

  • Datasheet: Reomax datasheet (4 pp, sha256 c1f560e2a821a924, retrieved 2026-10-17, 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