30R185UU

The 30R185UU series of PPTC devices from Littelfuse are resettable fuses designed to protect electronic circuits from overcurrent conditions. PPTC devices are also known as resettable fuses, polyfuses, or multifuse devices. They provide overcurrent protection by rapidly increasing resistance when an overcurrent condition is detected, effectively limiting the current flow to protect the circuit components.

Key Features:

• Resettable Protection: The PPTC devices automatically reset after the fault condition is removed, allowing the circuit to return to normal operation once the fault is cleared. This eliminates the need for manual replacement of fuses, reducing downtime and maintenance costs.

• Polymeric Material: The device is made of a polymeric material that exhibits a positive temperature coefficient (PTC) of resistance. When the current exceeds the rated threshold, the PTC material heats up, causing its resistance to increase rapidly, thereby limiting the current flow through the circuit.

• Surface-Mount Package: The 30R185UU series is available in a surface-mount package, which facilitates easy and compact integration onto printed circuit boards (PCBs). This makes them suitable for applications with space constraints.

• Low Profile: These PPTC devices have a low profile design, allowing for space-efficient placement on PCBs and in electronic devices.

• Fast Response Time: The devices have a fast response time to overcurrent conditions, providing effective protection to sensitive electronic components.

• Wide Operating Temperature Range: They operate reliably over a wide temperature range, ensuring consistent performance in various environmental conditions.

• RoHS Compliance: The 30R185UU series complies with the Restriction of Hazardous Substances (RoHS) directive, ensuring that they meet environmental standards for the elimination of hazardous materials in electronic components.

Applications:

• Consumer Electronics: Used in electronic devices such as smartphones, tablets, laptops, and digital cameras to protect against overcurrent events caused by short circuits or excessive load conditions.

• Telecommunications: Integrated into telecommunications equipment and networking devices for overcurrent protection in power distribution circuits, interface ports, and communication lines.

• Automotive Electronics: Employed in automotive electronics systems for overcurrent protection in vehicle control units, infotainment systems, and power distribution networks.

• Industrial Equipment: Used in industrial automation systems, machinery, and equipment for overcurrent protection in control circuits, motor drives, and power supplies.

• Medical Devices: Integrated into medical equipment and instruments to protect sensitive electronic components from damage due to overcurrent events.

• Power Adapters and Chargers: Employed in power adapters, battery chargers, and power supply units to safeguard against overcurrent conditions during charging or operation.

• LED Lighting: Used in LED lighting fixtures and drivers to protect against overcurrent events that may occur due to short circuits or voltage spikes.