RS31340B

Hot Swap Controllers Overview

The RS31340B is a single-channel hot swap controller and small-size eFuse protection switch manufactured by Reed Semiconductor Corp. Designed for motherboard applications, it integrates an active circuit protection mechanism with an internal MOSFET to limit current and voltage during fault conditions. The device operates within a supply voltage range of 2.97V to 16.5V and supports a maximum output current of 10A. It is housed in a compact 10-QFN (2x2) package and functions reliably across an operating temperature range of -40°C to 125°C.

Hot Swap Controllers Feature Summary

• Integrates active circuit protection with an internal MOSFET to restrict current and voltage levels during fault states
• Provides thermal shutdown and overcurrent protection capabilities for system safety
• Features a compact 10-QFN package design suitable for space-constrained motherboards

Hot Swap Controllers Applications

• Industrial systems requiring robust power management
• PCI® and PCIe® expansion slot interfaces
• Motherboard peripheral power distribution

Hot Swap Controllers Procurement Notes

Verify the specific manufacturer part number against official Reed Semiconductor documentation to ensure authenticity. Confirm that the component matches the required 10-QFN package dimensions and electrical specifications for your design. Check for any ordering suffixes that may indicate variations in tape-and-reel packaging or temperature grades. Ensure the supplier provides valid traceability records for quality assurance purposes.

Hot Swap Controllers Selection Notes

Select this component when designing circuits that require precise control over inrush current and short-circuit protection for high-speed interfaces. The integrated MOSFET eliminates the need for external pass transistors, simplifying the bill of materials. Consider the 10A current rating and wide input voltage range when matching power delivery requirements for downstream loads.

Hot Swap Controllers Part Context

This component belongs to the category of power management integrated circuits, specifically functioning as a hot swap controller. It serves as an electronic fuse solution, replacing traditional discrete protection components. The device is engineered to protect sensitive motherboard circuits from damage caused by insertion errors or short circuits.

Hot Swap Controllers Replacement Considerations

Consult official Reed Semiconductor substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully before integrating any substitute parts into existing designs.