component
0603L050SLYR
Public Made by Adomby adom
Littelfuse Resettable Fuses, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdown0603L050SLYR
Littelfuse · Resettable Fuses · 0603
0603L050SLYR from Littelfuse, in a 0603. 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 solder-plated copper terminal of the 0603L050SL PPTC (Ihold 0.50 A, Itrip 1.00 A, Vmax 6 Vdc, Imax 50 A); in series with the protected load. |
| 2 | 2 | passive | Second non-polarized solder-plated copper terminal of the 0603L050SL PPTC (Ihold 0.50 A, Itrip 1.00 A, Vmax 6 Vdc, Imax 50 A); in series with the protected load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum resistance (un-soldered state) | R min | 0.07 | Ω | Initial (un-soldered) state | 2 | ||
| Maximum resistance at 20°C after trip or reflow | R 1max | 0.35 | Ω | 20°C, measured one hour after tripping or reflow soldering of 260°C for 20 sec | 2 | ||
| Trip current | I trip | 1 | A | 20°C still air | 2 | ||
| Maximum voltage device can withstand | V max | 6 | Vdc | At rated current I max | 2 | ||
| Maximum fault current device can withstand | I max | 50 | A | At rated voltage V max | 2 | ||
| Maximum time-to-trip | 0.1 | Sec. | At 8.00 A | 2 | |||
| Hold current | I hold | 0.5 | A | 20°C still air | 2 | ||
| Power dissipated in tripped state | P d | 0.6 | W | Tripped state, 20°C still air | 2 | ||
| 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 | |||
| Operating temperature | -40 | 85 | °C | 4 | |||
| Maximum device surface temperature in tripped state | 125 | °C | Tripped state | 4 | |||
| Pre-heat minimum temperature | Ts(min) | 150 | °C | Pb-free assembly, pre-heat | 4 | ||
| Pre-heat maximum temperature | Ts(max) | 200 | °C | Pb-free assembly, pre-heat | 4 | ||
| Average ramp-up rate (Ts(max) to TP) | 3 | °C/second | Pb-free assembly | 4 | |||
| Ramp-down rate | 6 | °C/second | Pb-free assembly | 4 | |||
| Time 25°C to peak temperature | 8 | min | Pb-free assembly | 4 |
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:
0603L050SLYR - Footprint:
Fuse:Fuse_0603_1608Metric - 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files:
0603l050slyr-etched.step/0603l050slyr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);0603l050slyr.step/0603l050slyr.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).