TRF250-120T-RG-B-0.5

Resistance - Initial (Ri) (Min):	8.5 Ohms
Approvals:	CSA, TUV, UL
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.433" (11.00mm)
Size / Dimension:	0.256" L x 0.181" W (6.50mm x 4.60mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	16 Ohms
Series:	PolySwitch®, TRF250
Time to Trip:	750ms
Current - Trip (It):	240mA
Current - Hold (Ih) (Max):	120mA
Current - Max:	3A
Voltage - Max:	60V (250V Int)
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses

PTC resettable fuses are considered a key component of many electronic products. TRF250-120T-RG-B-0.5 is a prime example of such a fuse commonly used in various applications. This article will discuss the application field and working principle of the TRF250-120T-RG-B-0.5 PTC resettable fuse.

Application Field

The TRF250-120T-RG-B-0.5 PTC resettable fuse has a wide range of application fields. In general, such fuses are used when a steady state current or power is needed from an electronic device or circuit. It is also suitable for devices or circuits which need power surge protection, or slow power up and down. Such fuses can be used in digital cameras, game consoles, tablets, set top boxes, laptops, mobile phones, and many other electronic products. The TRF250-120T- RG-B-0.5 PTC resettable fuse has a wide temperature range, ranging from -55℃ to 65℃. This wide temperature range ensures the application of the fuse in various operating environments, making it suitable for a variety of consumer electronics, industrial machinery, power supplies, lighting, heating, medical equipment, and automotive circuits.

Working Principle

The TRF250-120T-RG-B-0.5 PTC resettable fuse works on a simple principle: when excessive current surges through the fuse, it heats up and trips, cutting off the circuit. This feature prevents the circuit from being damaged and provides the needed surge protection. The TRF250-120T-RG-B-0.5 PTC resettable fuse is thermally protected, meaning the fuse is designed to limit the temperature of a heated portion of the fuse above a certain limit. This function ensures that the fuse can trip even when the over-current is very small, which makes it a reliable fuse for protecting circuits against high current surges. In addition, the fuse can be reset manually and the process is straightforward.This PTC resettable fuse is also designed to self-reset after the over-current situation has been rectified, meaning the fuse will re-establish the circuit when the over-current disappears. This self-resetting capability is one of the important advantages of this type of fuse, for it eliminates the need for manual intervention.

Conclusion

The TRF250-120T-RG-B-0.5 PTC resettable fuse is one of the most popular types of fuses used in various applications, and it offers numerous advantages over ordinary fuses. Its wide temperature range and surge protection capabilities make the TRF250-120T-RG-B-0.5 PTC resettable fuse suitable for various applications. Moreover, its self-resetting feature is crucial for eliminating the need for manual intervention.

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

Part Number	Manufacturer	Price	Quantity	Description