1812L010DR LITTELFUSE Resettable Fuse (Other) In Stock
Littelfuse 1812L010DR is a resettable PPTC fuse in a 1812 SMT package rated for 0.10 A hold current and overcurrent protection. Key specs: 4.73 mm x 3.41 mm x 1.25 mm package, Pb-free, REACH compliant surface mount chip. Available from stock with worldwide shipping.
- Manufacturer
- LITTELFUSE
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 1812L010DR Datasheet PDF
- Category
- Resettable Fuse
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Resettable PPTC fuse in 1812 SMT package (4.73 mm x 3.41 mm) providing 0.10 A hold current overcurrent protection without fuse replacement
- Pb-free and REACH-compliant construction meeting global RoHS and environmental standards for consumer and industrial electronics
- Surface mount chip design enabling automated PCB assembly for reliable overcurrent protection in space-constrained applications
Applications
The Littelfuse 1812L010DR resettable PPTC fuse is used in USB port protection, battery pack overcurrent protection, and low-power supply rails in consumer electronics and IoT devices requiring automatic recovery after fault conditions. Its 0.10 A hold current rating makes it ideal for protecting circuits in handheld devices, wearables, and low-current sensor interfaces. After an overcurrent event, the 1812L010DR resets automatically when power is removed, eliminating the need for manual fuse replacement in field-deployed equipment.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 8.25 |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 1.25mm |
| Package Length | 4.73mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 3.41mm |
| Packing Method | TR, 7 INCH |
| Reference Standard | CUL; TUV; UL |
| Resistance | 1.6Ω |
| Resistor Type | PTC RESETTABLE FUSE |
| Surface Mount | YES |
| Terminal Finish | MATTE TIN |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Thermistor Application | OVERCURRENT PROTECTION |
| Working Voltage | 30V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.40.80.70 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What hold current rating does the Littelfuse 1812L010DR provide for overcurrent protection?
The 1812L010DR has a 0.10 A (100 mA) hold current rating, meaning it maintains low resistance below this threshold and trips to high resistance when current exceeds this level. Its trip current is typically 0.20 A, providing a 2:1 margin that protects sensitive circuits operating at 50 mA to 90 mA continuously.
Which applications benefit most from the resettable nature of the 1812L010DR PPTC fuse?
The resettable PPTC design is especially valuable in USB port protection, battery charger circuits, and IoT sensor nodes where manual fuse replacement is impractical. After removing the fault and cycling power, the 1812L010DR resets within 10 seconds to 60 seconds, restoring normal 0.10 A current capacity without any field service intervention.
What are the physical dimensions of the 1812L010DR and how does the 1812 package compare to smaller SMT fuse formats?
The 1812L010DR measures 4.73 mm x 3.41 mm x 1.25 mm in its 1812 rectangular SMT package. Compared to the 0603 SMT fuse package (1.55 mm x 0.85 mm), the 1812 package is approximately 9 times larger in area, which provides higher thermal mass for more stable trip thresholds in ambient temperatures from -40°C to +85°C.
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About LITTELFUSE
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