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JK-NSMD125-6
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Jinrui Electronic Materials Co Resettable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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JK-NSMD125-6
Jinrui Electronic Materials Co · Resettable Fuses · 1206
JK-NSMD125-6 from Jinrui Electronic Materials Co, 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 | Terminal pad of the non-polarized PPTC, rated Vmax 6.0 Vdc, Ihold 1.25 A and Itrip 2.50 A at 25 ℃, interchangeable with pin 2. |
| 2 | 2 | passive | Terminal pad of the non-polarized PPTC, rated Imax 100 A, with resistance 0.040 Ω min to 0.200 Ω max, interchangeable with pin 1. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| 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 |
|---|---|---|---|---|---|---|---|
| Initial resistance, minimum (Rimin) | Rimin | 0.04 | Ω | Table 2 performance ratings, model JK-nSMD125 | 1 | ||
| Maximum resistance after trip (R1max) | R1max | 0.2 | Ω | Table 2 performance ratings, model JK-nSMD125 | 1 | ||
| Initial resistance at 25℃ | 0.06 | 0.2 | Ω | Table 3 test conditions, 25℃, initial resistance | 1 | ||
| Time to trip | 1 | s | Maximum time to trip at 8.0 A, 25℃ | 1 | |||
| Maximum voltage rating | Vmax | 6 | Vdc | Table 2, model JK-nSMD125 | 1 | ||
| Maximum interrupt current | Imax | 100 | A | Table 2; trip endurance test at 6.0 V, 100 A, 1 hr, no arcing or burning | 1 | ||
| Hold current at 25℃ | Ihold | 1.25 | A | 25℃; Table 3: 1.25 A, 60 min, no trip | 1 | ||
| Trip current at 25℃ | Itrip | 2.5 | A | 25℃, Table 2 | 1 | ||
| Power dissipation | Pd | 0.6 | W | Table 2, typical value as printed | 1 | ||
| Operating temperature range | -40 | 85 | ℃ | Table 3, operating temperature -40℃ to 85℃ | 1 |
CAD (KiCad official)
- Symbol:
JK-NSMD125-6 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
jk-nsmd125-6-etched.step/jk-nsmd125-6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jk-nsmd125-6.step/jk-nsmd125-6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jinrui Electronic Materials Co datasheet (3 pp, sha256
0ecd9752411c4ab4, retrieved 2026-10-13, 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).
# JK-NSMD125-6
**Jinrui Electronic Materials Co** · Resettable Fuses · 1206
JK-NSMD125-6 from Jinrui Electronic Materials Co, 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 | Terminal pad of the non-polarized PPTC, rated Vmax 6.0 Vdc, Ihold 1.25 A and Itrip 2.50 A at 25 ℃, interchangeable with pin 2. |
| 2 | 2 | passive | Terminal pad of the non-polarized PPTC, rated Imax 100 A, with resistance 0.040 Ω min to 0.200 Ω max, interchangeable with pin 1. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| 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 |
|---|---|---|---|---|---|---|---|
| Initial resistance, minimum (Rimin) | Rimin | 0.04 | | | Ω | Table 2 performance ratings, model JK-nSMD125 | 1 |
| Maximum resistance after trip (R1max) | R1max | | | 0.2 | Ω | Table 2 performance ratings, model JK-nSMD125 | 1 |
| Initial resistance at 25℃ | | 0.06 | | 0.2 | Ω | Table 3 test conditions, 25℃, initial resistance | 1 |
| Time to trip | | | | 1 | s | Maximum time to trip at 8.0 A, 25℃ | 1 |
| Maximum voltage rating | Vmax | | | 6 | Vdc | Table 2, model JK-nSMD125 | 1 |
| Maximum interrupt current | Imax | | | 100 | A | Table 2; trip endurance test at 6.0 V, 100 A, 1 hr, no arcing or burning | 1 |
| Hold current at 25℃ | Ihold | | 1.25 | | A | 25℃; Table 3: 1.25 A, 60 min, no trip | 1 |
| Trip current at 25℃ | Itrip | | 2.5 | | A | 25℃, Table 2 | 1 |
| Power dissipation | Pd | | 0.6 | | W | Table 2, typical value as printed | 1 |
| Operating temperature range | | -40 | | 85 | ℃ | Table 3, operating temperature -40℃ to 85℃ | 1 |
## CAD (KiCad official)
- Symbol: `JK-NSMD125-6`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `jk-nsmd125-6-etched.step` / `jk-nsmd125-6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jk-nsmd125-6.step` / `jk-nsmd125-6.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Jinrui Electronic Materials Co datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590227458013093888) (3 pp, sha256 `0ecd9752411c4ab4`, retrieved 2026-10-13, 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](docs/jk-nsmd125-6-datasheet.pdf)