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JK-SMD1210-260L-12
Public Made by Adomby adom
Jinrui Electronic Materials Co Resettable Fuses, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownJK-SMD1210-260L-12
Jinrui Electronic Materials Co · Resettable Fuses · 1210
JK-SMD1210-260L-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 of two interchangeable, non-polarized terminals of the PPTC (tin-plated nickel-copper); rated 12 V VMAX, 50 A IMAX, 2.6 A hold / 5.2 A trip current. |
| 2 | 2 | passive | Second interchangeable, non-polarized terminal of the PPTC (tin-plated nickel-copper); rated 12 V VMAX, 50 A IMAX, 2.6 A hold / 5.2 A trip current. |
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 V variant | VMAX | 12 | V | 3 | |||
| Maximum fault current (IMAX) | IMAX | 50 | A | 3 | |||
| Hold current (IH) | IH | 2.6 | A | Maximum current that does not interrupt; 30 min at IH, 25℃ still air, no trip | 4 | ||
| Maximum time to trip at 13.0 A | 2 | Sec | Specified current 13.0 A, VMAX, 25℃ | 4 | |||
| Operating temperature range | -40 | 85 | ℃ | 1 | |||
| Maximum ambient storage temperature | 40 | ℃ | Storage | 8 | |||
| Maximum relative humidity for storage | 70 | % | Storage | 8 | |||
| 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 | |||
| Hold current derating at -40℃ ambient | IH | 3.85 | A | Maximum ambient operating temperature -40℃ | 4 | ||
| Hold current derating at -20℃ ambient | IH | 3.47 | A | Maximum ambient operating temperature -20℃ | 4 | ||
| Hold current derating at 0℃ ambient | IH | 3.02 | A | Maximum ambient operating temperature 0℃ | 4 | ||
| Hold current derating at 25℃ ambient | IH | 2.6 | A | Maximum ambient operating temperature 25℃ | 4 | ||
| Hold current derating at 40℃ ambient | IH | 2.29 | A | Maximum ambient operating temperature 40℃ | 4 | ||
| Hold current derating at 50℃ ambient | IH | 2.01 | A | Maximum ambient operating temperature 50℃ | 4 | ||
| Hold current derating at 60℃ ambient | IH | 1.84 | A | Maximum ambient operating temperature 60℃ | 4 | ||
| Hold current derating at 70℃ ambient | IH | 1.59 | A | Maximum ambient operating temperature 70℃ | 4 | ||
| Hold current derating at 85℃ ambient | IH | 1.25 | A | Maximum ambient operating temperature 85℃ | 4 | ||
| Peak classification reflow temperature (TP) | TP | 260 | ℃ | Pb-free reflow profile, peak classification temperature | 6 |
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-SMD1210-260L-12 - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
jk-smd1210-260l-12-etched.step/jk-smd1210-260l-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jk-smd1210-260l-12.step/jk-smd1210-260l-12.glbare 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 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).