Overview
The Bourns MF-SM050-2 is a polymeric Positive Temperature Coefficient (PTC) resettable fuse designed for surface mount applications. This component is part of the MF-SM series and is known for its high reliability and automatic reset capabilities. It is widely used in various electronic circuits to protect against overcurrent conditions, making it a crucial component in ensuring the safety and longevity of electronic devices.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage - Max | 60 V |
| Current - Hold (Ih) (Max) | 500 mA |
| Current - Trip (It) | 1 A |
| Current Rating Max | 40 A |
| Time to Trip | 4 seconds |
| Resistance - Initial (Ri) (Min) | 350 mOhms |
| Resistance - Post Trip (R1) (Max) | 1.4 Ohms |
| Operating Temperature | -40°C to 85°C |
| Package / Case | 2-SMD, 7.98 x 5.44 x 3.18 mm |
| Ratings | AEC-Q200 |
| Mounting Type | Surface Mount |
| RoHS Compliance | Yes |
Key Features
- Wide selection of hold currents and maximum voltages.
- Surface mount package for automated assembly.
- Fully compatible with current industry standards.
- High power rating.
- RoHS compliant and halogen free.
- Agency recognition: cUL, TÜV.
- Automatic reset after fault condition is removed.
Applications
The Bourns MF-SM050-2 is suitable for a variety of applications, including:
- Automotive systems: Due to its AEC-Q200 rating, it is often used in automotive electronics for overcurrent protection.
- Consumer electronics: Protects against overcurrent in devices such as smartphones, tablets, and other portable electronics.
- Industrial control systems: Provides reliable protection in industrial control circuits.
- Telecommunications: Used in telecommunications equipment to ensure safe and reliable operation.
Q & A
- What is the maximum voltage rating of the MF-SM050-2?
The maximum voltage rating is 60 V. - What is the hold current and trip current of the MF-SM050-2?
The hold current is 500 mA, and the trip current is 1 A. - How long does it take for the MF-SM050-2 to trip?
The time to trip is approximately 4 seconds. - What is the operating temperature range of the MF-SM050-2?
The operating temperature range is -40°C to 85°C. - Is the MF-SM050-2 RoHS compliant?
Yes, the MF-SM050-2 is RoHS compliant and halogen free. - What are the dimensions of the MF-SM050-2 package?
The package dimensions are 7.98 x 5.44 x 3.18 mm. - What is the resistance of the MF-SM050-2 after tripping?
The resistance after tripping (R1) is a maximum of 1.4 Ohms. - What certifications does the MF-SM050-2 have?
The MF-SM050-2 has cUL and TÜV certifications. - What is the typical application of the MF-SM050-2 in automotive systems?
In automotive systems, it is used for overcurrent protection due to its AEC-Q200 rating. - Can the MF-SM050-2 be used in consumer electronics?
Yes, it is commonly used in consumer electronics to protect against overcurrent conditions.
