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Littelfuse Resettable Fuse Radial Lead 0.33A Hold Current 4.5A Rating 240V dc LVR033K
Specifications
| Country of Origin | India |
|---|---|
| Voltage | 240V dc |
| Brand | Littelfuse |
| Height | 19mm |
| Length | 11.4mm |
| Model | LVR033K |
| Width | 3.8mm |
| Current Rating | 4.5A |
| Series | LVR |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -40°C |
| Trip Current | 740mA |
| Power Dissipation | 1.7W |
| Standards/Approvals | UL, TUV, RoHS, CSA |
| Time to Trip | 21s |
| Hold Current | 0.33A |
| Minimum Resistance | 0.77Ω |
| Maximum Resistance | 2.6Ω |
| Lead Orientation | Radial |
Key Features
- The fuse has a hold current of 0.33 amperes for circuit protection.
- Rated current of 4.5 amperes with a trip current of 740mA.
- Fast time to trip in approximately 21 seconds ensures quick response to faults.
- Compact radial lead design measuring 11.4mm length, 19mm height, and 3.8mm width.
- Operates safely within temperature range of -40°C to 60°C with power dissipation of 1.7 watts.
- Complies with UL, TUV, RoHS, and CSA standards for quality and safety.
- Maintenance-free polymeric PPTC device suitable for multiple industrial applications.
Product Description
Littelfuse LVR033K Resettable Fuse is a polymeric positive temperature coefficient (PPTC) device designed for protection of electrical and electronic circuits against overcurrent and short circuit faults. It is rated for a maximum voltage of 240V dc and a hold current rating of 0.33A with a 4.5A current rating, ensuring effective safeguarding of sensitive components.
This radial lead fuse features a fast time-to-trip of 21 seconds, allowing rapid switching from a low resistance state to a high resistance state when exposed to fault conditions. The compact dimensions (11.4mm length, 19mm height, 3.8mm width) make it suitable for PCB mounting in space-constrained environments.
Constructed with polymeric materials, the device is maintenance-free and capable of automatically resetting thousands of times without requiring replacement or fuse holders.
Typical applications include medical equipment, motors, fans, security and fire alarm systems, test and measurement instruments, transformers, and computer peripherals. The fuse complies with UL, TUV, RoHS, and CSA safety standards, reinforcing its reliability and quality.
The fuse provides excellent overcurrent protection while maintaining low resistance under normal conditions. Its fast response prevents damage from electrical surges and excessive currents. Suitable for industrial, laboratory, HVAC, manufacturing, and commercial electrical protection needs.
The radial lead orientation facilitates easy installation on printed circuit boards. Enables safer operation of various electronic devices by automatically resetting after fault correction.
The Littelfuse LVR series represents a trusted solution for durable and efficient circuit protection, designed to enhance safety in a broad range of industrial and commercial electrical systems.
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Frequently Asked Questions
The hold current rating of this resettable fuse is 0.33 amperes.
It is rated for a maximum voltage of 240V dc.
The trip current for this model is 740mA.
It has a fast time-to-trip of approximately 21 seconds, allowing for rapid switching during fault conditions.
The dimensions are 11.4mm in length, 19mm in height, and 3.8mm in width.
It operates safely within a temperature range of -40°C to 60°C.
This resettable fuse features a radial lead orientation, facilitating easy installation on printed circuit boards.
It complies with UL, TUV, RoHS, and CSA safety standards.
The power dissipation is 1.7 watts.
Typical applications include medical equipment, motors, fans, security systems, and test instruments.
The current rating for this resettable fuse is 4.5 amperes.
This maintenance-free device is capable of automatically resetting thousands of times without requiring replacement.
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