1206L025YR LITTELFUSE Resettable Fuse (Fuses Chip) In Stock
Littelfuse 1206L025YR is a resettable PTC fuse in a 1206 SMD package with a 0.25 A hold current and 0.50 A trip current for overcurrent protection. It features a compact 3.4 mm × 1.8 mm footprint and surface mount assembly compatibility. Available worldwide with in-stock shipping.
- Manufacturer
- LITTELFUSE
- Package
- Fuses Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 1206L025YR Datasheet PDF
- Category
- Resettable Fuse
- Price
- From $0.1358(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.25 A hold current and 0.50 A trip current in compact 1206 SMT package (3.4 mm × 1.8 mm × 1 mm) for board-level overcurrent protection
- Resettable PTC technology automatically restores normal operation after a fault is cleared, eliminating the need to replace blown fuses
- RoHS compliant and REACH compliant construction with tape-and-reel (7-inch) packaging for automated SMT assembly
Applications
The 1206L025YR is used for overcurrent protection in USB ports, battery packs, and portable electronic devices where resettable protection eliminates manual fuse replacement. Its 0.25 A hold current and 1206 surface mount form factor are well suited for laptop accessories, IoT devices, and consumer electronics power rails. The automatic reset feature ensures minimal downtime in field-deployed equipment after transient overcurrent events.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 8.25 |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 1mm |
| Package Length | 3.4mm |
| Package Style | SMT |
| Package Width | 1.8mm |
| Packing Method | TR, 7 INCH |
| Reference Standard | CUL; TUV; UL |
| Resistance | 0.55Ω |
| Resistor Type | PTC RESETTABLE FUSE |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Thermistor Application | OVERCURRENT PROTECTION |
| Working Voltage | 16V |
| Package | Fuses Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.40.80.70 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 1206L025YR:
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Frequently Asked Questions
What are the hold and trip current ratings of the 1206L025YR, and how do they define protection thresholds?
The 1206L025YR has a 0.25 A hold current, meaning it passes this current without tripping under normal conditions, and a 0.50 A trip current, at which it switches to a high-resistance state to limit fault current. This 2:1 ratio between hold and trip current ensures robust protection for low-current circuits such as USB interfaces and sensor power rails.
How does the resettable PTC mechanism of the 1206L025YR differ from a one-time blow fuse in a battery protection circuit?
Unlike a one-time blow fuse that must be physically replaced after a fault, the 1206L025YR automatically resets to its low-resistance state once the overcurrent condition is removed and the device cools. This resettable behavior is critical in battery protection circuits and consumer devices where field replacement is impractical, reducing maintenance costs.
What PCB footprint does the 1206L025YR require, and does it support automated SMT assembly?
The 1206L025YR uses a standard 1206 SMT footprint measuring 3.4 mm × 1.8 mm × 1 mm. It is supplied in 7-inch tape-and-reel packaging, fully compatible with automated pick-and-place and reflow soldering equipment, enabling seamless integration into high-volume SMT production lines without special tooling.
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About LITTELFUSE
LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1358 | $0.14 |
In Stock · 24h Response · Worldwide Shipping
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