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MF-SMDF100-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 15V 1.1A 2018
- Series：Multifuse®, MF-SMDF
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：15V
- Current - Hold (Ih) (Max)：1.1 A
- Current - Trip (It)：2.2 A
- Current - Max：40 A
- Time to Trip：500 ms
- Resistance - Initial (Ri) (Min)：100 mOhms
- Resistance - Post Trip (R1) (Max)：390 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：2018 (5045 Metric), Concave
- Size / Dimension：0.200" L x 0.180" W (5.08mm x 4.58mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.049" (1.25mm)
- Lead Spacing：-
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Overview
The Bourns MF-SMDF100-2 is a surface mount polymeric resettable fuse from the Multifuse SMDF series. It features a fast trip time and low resistance for efficient circuit protection. The component has a holding current of 1.0 A and a tripping current of 2.0 A. It supports a maximum voltage of 60 VDC and offers high interrupting capacity. The device operates within a temperature range of -40°C to +85°C. Physical dimensions are 1.2 mm in length, 0.6 mm in width, and 0.55 mm in height. Typical resistance is 0.07 ohms.
Feature Summary
- Polymer positive temperature coefficient (PPTC) technology provides automatic reset capability after fault clearance.
- Fast trip response time ensures rapid disconnection during overcurrent events.
- Compact surface mount package facilitates automated assembly and space-constrained designs.
- Low on-resistance minimizes power loss and heat generation during normal operation.
Applications
- Portable electronic devices requiring overcurrent protection
- Laptop computers and peripheral interfaces
- Consumer electronics with limited board space
- Battery packs and charging circuits
Procurement Notes
Verify that the specific part number matches the required electrical ratings for the target application. Confirm compliance with RoHS directives if environmental regulations apply. Ensure storage conditions maintain component integrity prior to soldering. Check for any recent product change notices regarding material or performance updates.
Selection Notes
Select this component based on the required holding current and maximum system voltage. Evaluate the expected fault current levels to ensure adequate interrupting capacity. Consider the ambient operating temperature range to guarantee reliable performance. Compare physical footprint constraints against available board real estate.
Part Context
This part belongs to the Multifuse SMDF series of surface mount resettable fuses. The series is designed for high-volume consumer and portable applications. It complements other Bourns protection components by offering a compact, cost-effective solution for overcurrent scenarios.
Replacement Considerations
Direct replacements must match the 1.0 A holding current and 60 VDC rating. Verify that substitute parts offer comparable trip times and physical dimensions. Ensure alternative components meet the same safety agency approvals for the intended market.
