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MF-USMD035-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 6V 350MA 1210
- Series：Multifuse®, MF-USMD
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：350 mA
- Current - Trip (It)：750 mA
- Current - Max：40 A
- Time to Trip：200 ms
- Resistance - Initial (Ri) (Min)：200 mOhms
- Resistance - Post Trip (R1) (Max)：1.3 Ohms
- 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)：0.024" (0.62mm)
- Lead Spacing：-
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Overview
The MF-USMD035-2 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc., designed for surface mount applications in the 1210 (3225 Metric) package. It features a maximum voltage rating of 6V and a hold current of 350 mA, with a trip current of 750 mA. The component offers an initial resistance minimum of 300 mOhms and a post-trip resistance maximum of 1.2 Ohms. It operates within a temperature range of -40°C to 85°C and has a time to trip of 100 ms.
Feature Summary
- Provides overcurrent protection through self-resetting polymeric technology
- Designed for surface mount integration in compact electronic circuits
- Maintains stable electrical characteristics across specified operating temperatures
Applications
- Automotive circuit protection systems
- Consumer electronics power management
- Industrial control board safeguarding
Procurement Notes
Verify that the ordered components match the exact part number MF-USMD035-2 to ensure correct voltage and current ratings. Confirm RoHS compliance status as required by project specifications. Check packaging details such as tape and reel configuration for automated assembly compatibility. Ensure storage conditions maintain component integrity prior to installation.
Selection Notes
Select this component when low voltage operation near 6V is required alongside precise current limiting capabilities. Consider the 1210 footprint constraints during PCB layout planning. Evaluate thermal environment requirements against the -40°C to 85°C operating range. Compare reset times and resistance values against system recovery needs.
Part Context
This device belongs to Bourns' family of Polymeric PTC Resettable Fuses, which offer reusable overcurrent protection solutions. These components serve as alternatives to traditional fuses by automatically restoring conductivity after fault conditions clear. The series supports various package sizes to accommodate different density requirements in modern electronics manufacturing.
Replacement Considerations
The MF-NSMF035-2 serves as a verified substitute option within the same manufacturer lineup. Both parts share identical electrical ratings including 6V voltage and 350 mA hold current. Verify package dimension compatibility before substitution to ensure proper solder joint formation.
