component
JK-SMD0805-300L
Public Made by Adomby adom
Jinrui Electronic Materials Co Resettable Fuses, 0805. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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-SMD0805-300L
Jinrui Electronic Materials Co · Resettable Fuses · 0805
JK-SMD0805-300L from Jinrui Electronic Materials Co, in a 0805. 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 | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| Package | 0805 |
| 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), 6V-rated variant | VMAX | 6 | V | Maximum continuous voltage at rated current, per electrical specification definition | 3 | ||
| Maximum fault current (IMAX) | IMAX | 50 | A | At rated voltage (6.0 V variant) | 3 | ||
| Maximum time-to-trip | 2 | sec | At 15.0 A maximum time-to-trip current, 6.0 V variant | 3 | |||
| Minimum initial resistance (RiMIN) | RiMIN | 0.003 | Ω | In still air at 25℃, prior to tripping | 3 | ||
| Maximum resistance one hour post reflow (R1MAX) | R1MAX | 0.03 | Ω | Measured one hour post reflow | 3 | ||
| Passive aging resistance change | -10 | 10 | % | 85℃, 1000 hours; typical | 4 | ||
| Humidity aging resistance change | -5 | 5 | % | 85℃/85%RH, 100 hours; typical | 4 | ||
| Operating temperature range | -40 | 85 | ℃ | Operating temperature | 1 | ||
| Maximum reflow peak temperature (Pb-free) | TP | 260 | ℃ | Pb-free reflow profile, peak/classification temperature; time within 5℃ of peak 30 seconds max | 5 | ||
| Hold current (IH) | IH | 3 | A | Maximum current that does not interrupt, 25℃ still air | 2 | ||
| Trip current (IT) | IT | 6 | A | 25℃ still air | 2 | ||
| Typical power dissipation (PD) | PD | 0.8 | W | 25℃ still air | 2 | ||
| Maximum time-to-trip test current | 15 | A | Time-to-trip test current for 2.0 sec maximum trip time | 2 | |||
| Thermal shock resistance change | -30 | % | MIL-STD-202 Method 107G, +85℃/-40℃, 20 times; typical | 4 | |||
| Thermal derating hold current IH at -40℃ ambient | IH | 4.29 | A | Maximum ambient operating temperature -40℃ | 3 | ||
| Thermal derating hold current IH at -20℃ ambient | IH | 3.75 | A | Maximum ambient operating temperature -20℃ | 3 | ||
| Thermal derating hold current IH at 0℃ ambient | IH | 3.53 | A | Maximum ambient operating temperature 0℃ | 3 | ||
| Thermal derating hold current IH at 25℃ ambient | IH | 3 | A | Maximum ambient operating temperature 25℃ | 3 | ||
| Thermal derating hold current IH at 40℃ ambient | IH | 2.65 | A | Maximum ambient operating temperature 40℃ | 3 | ||
| Thermal derating hold current IH at 50℃ ambient | IH | 2.5 | A | Maximum ambient operating temperature 50℃ | 3 | ||
| Thermal derating hold current IH at 60℃ ambient | IH | 2.4 | A | Maximum ambient operating temperature 60℃ | 3 | ||
| Thermal derating hold current IH at 70℃ ambient | IH | 1.94 | A | Maximum ambient operating temperature 70℃ | 3 | ||
| Thermal derating hold current IH at 85℃ ambient | IH | 1.36 | A | Maximum ambient operating temperature 85℃ | 3 |
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 | 4 |
CAD (KiCad official)
- Symbol:
JK-SMD0805-300L - Footprint:
Fuse:Fuse_0805_2012Metric - 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files:
jk-smd0805-300l-etched.step/jk-smd0805-300l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jk-smd0805-300l.step/jk-smd0805-300l.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
d39da45649722a68, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).