Littelfuse, Inc., a global leader in circuit protection, has launched the PolySwitch® LoRho Series SMD PPTC, a smart solution designed to safeguard charging cables and connectors from overheating caused by faulty connections or internal issues. As connectors become smaller with tighter pin spacing, the risk of contamination—such as dust, moisture, or debris—between contacts increases, potentially leading to electrical failures. These failures can generate excessive heat, damaging both the cable and the connected device, and even posing a risk to users.
By integrating the LoRho Series PPTC into the Vbus line of a connector, the system can detect rising temperatures and automatically halt the charging process until the issue is resolved. Once the problem is addressed, the device will reset itself, ensuring a safe and reliable charging experience.
The LoRho SMD Series PPTC is ideal for applications where small pin spacing is common, such as microUSB and USB-C ports. This makes it especially valuable for fast-charging devices like smartphones, tablets, laptops, TVs, set-top boxes, cameras, and gaming consoles, which operate at higher voltages and currents.
Vincent Wu, Global Product Manager at Littelfuse, emphasizes that the LoRho Series offers more than just overcurrent protection. “Not all faults are due to current spikes,†he explains. “This device provides both overcurrent and overtemperature protection, ensuring user safety. Before this, there wasn’t a product that combined low resistance, compact size, voltage compatibility, and self-resetting capabilities.â€
Key advantages of the LoRho Series SMD PPTC include:
- **Surface Mount Design:** Compatible with reflow soldering, reducing assembly time and cost compared to through-hole components.
- **Compact 1206 and 1210 Packages:** Save PCB space and ensure compliance with USB-IF size standards for USB-C connectors.
- **High Performance:** Suitable for fast charging applications with up to 12Vdc and 4.5A hold current.
The LoRho Series SMD PPTC is available in 1206 and 1210 surface mount tape and reel packages, with a minimum order quantity of 15,000 units. Free samples are available through authorized Littelfuse distributors worldwide. For a full list of dealers, visit [Littelfuse.com](http://www.littelfuse.com).
For more details, check out the [PolySwitch® LoRho Series SMD PPTC product page](http://www.littelfuse.com). If you have technical questions, feel free to reach out to Vincent Wu, Global Product Manager at Littelfuse.
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