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SMD1210-150-12
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hongjiacheng Resettable Fuses, 1210. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SMD1210-150-12
hongjiacheng · Resettable Fuses · 1210
SMD1210-150-12 from hongjiacheng, 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 | Non-polarized PTC terminal; device holds 1.50 A (Ihold) and trips at 3.00 A (Itrip) at 25°C, rated 12 V max at 40 A max fault current. |
| 2 | 2 | passive | Non-polarized PTC terminal; interchangeable with the other terminal, mounted on 1.2±0.1 mm x 1.9±0.1 mm pads at 1.9±0.1 mm spacing. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (Ihold), 25℃ still air | Ihold | 1.5 | A | 25℃ still air; max current passed without tripping | 2 | ||
| Trip current (Itrip), 25℃ still air | Itrip | 3 | A | 25℃ still air; min current at which the device trips | 2 | ||
| Maximum voltage (Vmax) | Vmax | 12 | V | At rated current (Imax) | 2 | ||
| Maximum fault current (Imax) | Imax | 40 | A | At rated voltage (Vmax) | 2 | ||
| Typical power dissipated in tripped state (Pdtyp) | Pdtyp | 0.8 | W | Tripped state, 25℃ still air | 2 | ||
| Time-to-trip | 0.5 | S | Column headed 'Max. Time-to-trip'; test condition not printed | 2 | |||
| Minimum resistance in initial (un-soldered) state (Ri min) | Rmin | 0.03 | Ω | Initial un-soldered state | 2 | ||
| Maximum resistance at 25℃ after trip or reflow (R1 max) | R1max | 0.11 | Ω | 25℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 2 | ||
| Operating / storage temperature | -40 | 85 | ℃ | Operating / storage temperature | 3 | ||
| Maximum device surface temperature in tripped state | 125 | ℃ | Tripped state | 3 |
CAD (KiCad official)
- Symbol:
SMD1210-150-12 - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
smd1210-150-12-etched.step/smd1210-150-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smd1210-150-12.step/smd1210-150-12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (4 pp, sha256
28e0d29454c1cefe, 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).
# SMD1210-150-12
**hongjiacheng** · Resettable Fuses · 1210
SMD1210-150-12 from hongjiacheng, 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 | Non-polarized PTC terminal; device holds 1.50 A (Ihold) and trips at 3.00 A (Itrip) at 25°C, rated 12 V max at 40 A max fault current. |
| 2 | 2 | passive | Non-polarized PTC terminal; interchangeable with the other terminal, mounted on 1.2±0.1 mm x 1.9±0.1 mm pads at 1.9±0.1 mm spacing. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (Ihold), 25℃ still air | Ihold | | 1.5 | | A | 25℃ still air; max current passed without tripping | 2 |
| Trip current (Itrip), 25℃ still air | Itrip | 3 | | | A | 25℃ still air; min current at which the device trips | 2 |
| Maximum voltage (Vmax) | Vmax | | | 12 | V | At rated current (Imax) | 2 |
| Maximum fault current (Imax) | Imax | | | 40 | A | At rated voltage (Vmax) | 2 |
| Typical power dissipated in tripped state (Pdtyp) | Pdtyp | | 0.8 | | W | Tripped state, 25℃ still air | 2 |
| Time-to-trip | | | | 0.5 | S | Column headed 'Max. Time-to-trip'; test condition not printed | 2 |
| Minimum resistance in initial (un-soldered) state (Ri min) | Rmin | 0.03 | | | Ω | Initial un-soldered state | 2 |
| Maximum resistance at 25℃ after trip or reflow (R1 max) | R1max | | | 0.11 | Ω | 25℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 2 |
| Operating / storage temperature | | -40 | | 85 | ℃ | Operating / storage temperature | 3 |
| Maximum device surface temperature in tripped state | | | | 125 | ℃ | Tripped state | 3 |
## CAD (KiCad official)
- Symbol: `SMD1210-150-12`
- Footprint: `Fuse:Fuse_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `smd1210-150-12-etched.step` / `smd1210-150-12-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd1210-150-12.step` / `smd1210-150-12.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [hongjiacheng datasheet](docs/smd1210-150-12-datasheet.pdf) (4 pp, sha256 `28e0d29454c1cefe`, retrieved 2026-10-17, 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/smd1210-150-12-datasheet.pdf)