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Contents

README

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SMD1206P200TF

RUILON Shenzhen Ruilongyuan Elec · Resettable Fuses · 1206

SMD1206P200TF from RUILON Shenzhen Ruilongyuan 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 Non-polarized PTC terminal; device holds 2.00 A (Ihold) and trips at 3.50 A (Itrip) in 25°C still air, with Vmax 6 VDC and Imax 8.00 A.
2 2 passive Non-polarized PTC terminal; interchangeable with the other terminal, with Ri min 0.015 Ω and R1max 0.08 Ω (one hour post reflow).

Key specifications

Parameter Value
Manufacturer RUILON Shenzhen Ruilongyuan 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
Hold current (Ihold), 25°C still air Ihold 2 A 25°C still air; footnote: maximum current device will not trip 3
Trip current (Itrip), 25°C still air Itrip 3.5 A 25°C still air; footnote: minimum current at which device always trips 3
Maximum operating voltage Vmax 6 VDC at rated current (Imax); maximum operating voltage the device can withstand without damage 3
Max. time to trip Tmax 8 S 3
Maximum fault current Imax 35 A at rated voltage (Vmax) 3
Minimum device resistance prior to tripping (Ri min) Ri min 0.015 Ω prior to tripping, 25°C 3
Maximum device resistance one hour post reflow (R1max) R1max 0.08 Ω measured one hour post reflow 3
Resistance change after passive aging -5 5 % +85℃, 1000 hrs; printed as ±5% typical 1
Resistance change after humidity aging -5 5 % +85℃, 85%R.H., 168 hours; printed as ±5% typical 1
Resistance change after thermal shock -33 33 % +85℃ to -40℃, 20 times; printed as ±33% typical 1
Ambient operating temperature -40 85 °C ambient operating conditions 1
Maximum surface temperature in tripped state 125 °C device in tripped state 1
Peak reflow temperature (TP) TP -5 260 0 °C Pb-free reflow; printed as 260 +0/-5°C; do not exceed 260°C 5
Power dissipation in tripped state (Pd) Pd 0.8 W tripped state, 25°C still air, at rated voltage 3
Hold current derating (Ih) at ambient -40 ºC Ih 2.88 A ambient -40 ºC 5
Hold current derating (Ih) at ambient -20 ºC Ih 2.63 A ambient -20 ºC 5
Hold current derating (Ih) at ambient 0 ºC Ih 2.34 A ambient 0 ºC 5
Hold current derating (Ih) at ambient 25 ºC Ih 2 A ambient 25 ºC 5
Hold current derating (Ih) at ambient 40 ºC Ih 1.74 A ambient 40 ºC 5
Hold current derating (Ih) at ambient 50 ºC Ih 1.58 A ambient 50 ºC 5
Hold current derating (Ih) at ambient 60 ºC Ih 1.42 A ambient 60 ºC 5
Hold current derating (Ih) at ambient 70 ºC Ih 1.17 A ambient 70 ºC 5
Hold current derating (Ih) at ambient 85 ºC Ih 0.93 A ambient 85 ºC 5

CAD (KiCad official)

  • Symbol: SMD1206P200TF
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: smd1206p200tf-etched.step / smd1206p200tf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smd1206p200tf.step / smd1206p200tf.glb are the bare package body.

Provenance

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

  • Datasheet: RUILON Shenzhen Ruilongyuan Elec datasheet (10 pp, sha256 359769cf8456c150, 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