ChipApex | Global Electronic Components Supplier
MF-USMD110-2
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：PTC RESET FUSE 6V 1.1A 1210
- Series：Multifuse®, MF-USMD
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：1.1 A
- Current - Trip (It)：2.2 A
- Current - Max：40 A
- Time to Trip：1 s
- Resistance - Initial (Ri) (Min)：50 mOhms
- Resistance - Post Trip (R1) (Max)：210 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1210 (3225 Metric)
- Size / Dimension：0.127" L x 0.102" W (3.22mm x 2.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.019" (0.48mm)
- Lead Spacing：-
Download product information
Overview
The Bourns MF-USMD110-2 is a surface-mount PPTC resettable fuse from the Multifuse USMD series, designed for overcurrent protection in compact electronic circuits. It features a hold current of 1.1 A and a trip current of 2.2 A, operating at a maximum voltage of 6 VDC. The device offers a high fault current rating of up to 40 A and maintains a low resistance of 210 mOhms. Housed in a 0603 (1608 metric) package, it supports SMD/SMT installation and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Provides automatic circuit recovery after fault clearance without manual replacement
- Offers reliable overcurrent protection against short circuits and thermal damage
- Designed for space-constrained applications with a compact surface-mount footprint
Applications
- Portable consumer electronics such as mobile phones and tablets
- USB peripheral devices and data cables
- Battery packs and power management modules
- Automotive infotainment and sensor systems
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer part number and date codes with official Bourns documentation. Ensure the specific suffix matches the required electrical characteristics. Confirm RoHS compliance status through the latest datasheet before integration into production lines.
Selection Notes
Select this component when designing low-voltage circuits requiring rapid response to overcurrent conditions. The 1.1 A hold current suits moderate load applications, while the 6 VDC rating limits usage to low-voltage domains. Consider the 0603 package size for board density constraints and verify ambient temperature derating requirements for high-heat environments.
Part Context
This part belongs to the Multifuse USMD series, which focuses on ultra-small form factor protection. It complements larger packages like the USMF and PSMF series by providing similar functionality in a reduced footprint suitable for modern miniaturized electronics.
Replacement Considerations
Direct substitutes include other Bourns USMD series variants with matching hold and trip currents. Cross-brand replacements require careful verification of voltage ratings, package dimensions, and tripping characteristics to ensure circuit compatibility.
