component
1206L150SLYR
Public Made by Adomby adom
Littelfuse Resettable Fuses, 1206. 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
markdown1206L150SLYR
Littelfuse · Resettable Fuses · 1206
1206L150SLYR from Littelfuse, 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 | Unpolarized PPTC terminal (solder-plated copper end terminal) with Ihold 1.50 A, Itrip 3.90 A, Vmax 6 Vdc and Imax 50 A for the device. |
| 2 | 2 | passive | Unpolarized PPTC terminal (solder-plated copper end terminal), interchangeable with the other terminal, with R1max 0.065 ohm after trip or reflow. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current (maximum current without tripping, 20°C still air) | I hold | 1.5 | A | 20°C still air; 1206L150SL row | 2 | ||
| Trip current (minimum current at which device trips, 20°C still air) | I trip | 3.9 | A | 20°C still air; 1206L150SL row | 2 | ||
| Maximum voltage device can withstand without damage | V max | 6 | Vdc | at rated current (I max); 1206L150SL row | 2 | ||
| Maximum fault current device can withstand without damage | I max | 50 | A | at rated voltage (V max); 1206L150SL row | 2 | ||
| Power dissipated in tripped state | P d | 0.8 | W | tripped state, 20°C still air; typ. | 2 | ||
| Maximum time-to-trip time | 0.3 | Sec. | at 8.00 A fault current | 2 | |||
| Minimum resistance in initial (un-soldered) state | R min | 0.01 | Ω | initial un-soldered state | 2 | ||
| Maximum resistance at 20°C one hour after tripping or reflow soldering | R 1max | 0.065 | Ω | 20°C, measured one hour after tripping or reflow soldering of 260°C for 20 sec | 2 | ||
| Operating temperature | -40 | 85 | °C | Environmental specifications | 4 | ||
| Maximum device surface temperature in tripped state | 125 | °C | tripped state | 4 | |||
| Passive aging resistance change | -10 | 10 | % | +85°C, 1000 hours; typical resistance change | 4 | ||
| Humidity aging resistance change | -15 | 15 | % | +85°C, 85% R.H., 100 hours; typical resistance change | 4 | ||
| Thermal shock resistance change | -30 | % | MIL-STD-202 Method 107, +85°C/-40°C 20 times; typical resistance change | 4 | |||
| Reflow peak classification temperature (Pb-free) | TP | 260 | °C | printed tolerance +0/-5 °C; Pb-free assembly profile | 4 | ||
| Hold current rerating at ambient -40°C (reference only) | I hold | 2.67 | A | ambient -40°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient -20°C (reference only) | I hold | 2.32 | A | ambient -20°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 0°C (reference only) | I hold | 1.95 | A | ambient 0°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 20°C (reference only) | I hold | 1.5 | A | ambient 20°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 40°C (reference only) | I hold | 1.15 | A | ambient 40°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 60°C (reference only) | I hold | 0.78 | A | ambient 60°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 70°C (reference only) | I hold | 0.64 | A | ambient 70°C; temperature rerating reference only | 3 | ||
| Hold current rerating at ambient 85°C (reference only) | I hold | 0.52 | A | ambient 85°C; temperature rerating reference only | 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 | Terminal Material Solder-Plated Copper | 4 |
CAD (KiCad official)
- Symbol:
1206L150SLYR - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
1206l150slyr-etched.step/1206l150slyr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1206l150slyr.step/1206l150slyr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (7 pp, sha256
4299de209bcfb317, retrieved 2026-10-18, 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).