MF-SM260-2 Allicdata Electronics
Allicdata Part #:

MF-SM260TR-ND

Manufacturer Part#:

MF-SM260-2

Price: $ 0.20
Product Category:

Circuit Protection

Manufacturer: Bourns Inc.
Short Description: PTC RESET FUSE 6V 2.6A 2SMD
More Detail: Polymeric PTC Resettable Fuse 6V 2.6A Ih Surface M...
DataSheet: MF-SM260-2 datasheetMF-SM260-2 Datasheet/PDF
Quantity: 2000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
2000 +: $ 0.17640
4000 +: $ 0.17325
6000 +: $ 0.17010
10000 +: $ 0.16380
Stock 2000Can Ship Immediately
$ 0.2
Specifications
Series: Multifuse®, MF-SM
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Type: Polymeric
Voltage - Max: 6V
Current - Max: 100A
Current - Hold (Ih) (Max): 2.6A
Current - Trip (It): 5.2A
Time to Trip: 20s
Resistance - Initial (Ri) (Min): 25 mOhms
Resistance - Post Trip (R1) (Max): 75 mOhms
Operating Temperature: -40°C ~ 85°C
Ratings: AEC-Q200
Mounting Type: Surface Mount
Package / Case: 2-SMD
Size / Dimension: 0.287" L x 0.214" W (7.31mm x 5.44mm)
Height - Seated (Max): --
Thickness (Max): 0.118" (3.00mm)
Lead Spacing: --
Approvals: cURus, TUV
Description

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PTC resettable fuses, also known as polymeric positive temperature coefficient (PPTC) fuses, are electronic fuses that reset after the overcurrent is cleared. PTC resettables are used in a wide range of applications that require circuit protection ranging from, consumer electronics, medical equipment, industrial applications and telecommunications. MF-SM260-2 is a popular model of PTC resettable fuse, designed to have an open and short circuit protection, eliminating the need for replacements after operation. This article discusses the applications and working principle of the MF-SM260-2 resettable fuse.

Applications of MF-SM260-2

The MF-SM260-2 is a low cost solution for electronic circuit protection. Its wide operating temperature range (from -40 °C to +85 °C) makes it suitable for a variety of applications. Additionally, there is no firing delay, it switches on instantly in the event of an overcurrent.

The MF-SM260-2 is widely used in consumer electronics, medical equipment, industrial applications and telecommunications. In consumer electronics, it is used in small electronic products to safeguard them from accidental overcurrents. In medical equipment, it is used to protect sensitive equipment from unexpected and dangerous current overloads. In industrial applications, it is used to shield against power spikes and surges, protecting expensive and sensitive equipment from irreversible damage. In telecommunications, it can be used to protect equipment from sharp power fluctuations.

Working Principle of MF-SM260-2

The working principle of the MF-SM260-2 PTC resettable fuse is based on the principle of redirecting current away from the primary circuit when an overcurrent occurs. This is done using a temperature sensing element that switches on when the temperature rises above a certain point. When an overcurrent is detected, the temperature sensing element will respond by diverting the excessive current away from the main circuit and into a secondary circuit. This secondary circuit then dissipates the excess current, while at the same time raising the temperature. If the temperature continues to increase, the PTC resettable fuse will switch off the primary circuit. Once the temperature falls, the PTC resettable fuse will reset and allow the current to flow in the primary circuit.

The key advantage of this type of design is that it eliminates the need for replacing the fuse after operation. It also provides superior current limiting abilities, allowing it to limit current over short periods of time and to remain functional over long time periods.

Conclusion

The MF-SM260-2 PTC resettable fuse is a versatile and cost-effective circuit protection device. It is used in a wide range of applications, from consumer electronics to industrial applications, and medical equipment to telecommunications. Its working principle is based on a temperature sensing element, which switches on when the temperature rises above a certain point, diverting excessive current from the main circuit, while at the same time allowing the current to flow once the temperature falls again. This eliminates the need for replacement after operation, increases reliability and provides superior current limiting abilities.

The specific data is subject to PDF, and the above content is for reference

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