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JK-SMD1210-200L-12

Jinrui Electronic Materials Co · Resettable Fuses · 1210

JK-SMD1210-200L-12 from Jinrui Electronic Materials Co, in a 1210. 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 terminal of the non-polarized resettable PPTC fuse (tin-plated nickel-copper end termination); IH 2.0 A, IT 4.0 A, VMAX 12.0 V, IMAX 50.0 A for the -12 variant.
2 2 passive Second terminal of the non-polarized PPTC fuse, interchangeable with the other terminal; device resistance is 0.006 Ω min to 0.035 Ω max (R1MAX) at 25°C.

Key specifications

Parameter Value
Manufacturer Jinrui Electronic Materials Co
Package 1210
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
Maximum voltage (VMAX), -12 variant VMAX 12 V Maximum continuous voltage at rated current 2
Maximum fault current (IMAX) IMAX 50 A Maximum fault current at rated voltage 2
Hold current (IH) IH 2 A 30 min at IH, 25℃ still air, no trip 2
Trip current (IT) IT 4 A 25℃ still air 2
Maximum time to trip 3 Sec At specified current 8.0 A, VMAX, 25℃ 2
Minimum device resistance (RiMIN) RiMIN 0.006 Ω In still air at 25℃, prior to tripping 2
Maximum device resistance (R1MAX) R1MAX 0.035 Ω In still air at 25℃, measured one hour post reflow 2
Typical power dissipation (PD) PD 0.8 W 25℃ still air 2
Passive aging resistance change -10 10 % 85℃, 1000 hours; typical 5
Humidity aging resistance change -5 5 % 85℃/85%RH, 100 hours; typical 5
Thermal shock resistance change -30 % MIL-STD-202 Method 107G, +85℃/-40℃, 20 times; typical 5
Operating temperature range -40 85 ℃ Operating temperature 1
Maximum storage ambient temperature 40 ℃ Storage; higher storage temperatures may deform packaging 8

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 copper tin Terminal Materials Tin-Plated Nickle-copper 5

CAD (KiCad official)

  • Symbol: JK-SMD1210-200L-12
  • Footprint: Fuse:Fuse_1210_3225Metric
  • 3D model: 1210 (KiCad packages3D, STEP)
  • 3D model files: jk-smd1210-200l-12-etched.step / jk-smd1210-200l-12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); jk-smd1210-200l-12.step / jk-smd1210-200l-12.glb are the bare package body.

Provenance

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

  • Datasheet: Jinrui Electronic Materials Co datasheet (8 pp, sha256 c9d3ae5bba577b21, 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