RTE120-2

Resistance - Initial (Ri) (Min):	74 mOhms
Approvals:	CSA, TUV, UR
Lead Spacing:	0.199" (5.05mm)
Thickness (Max):	--
Height - Seated (Max):	0.480" (12.20mm)
Size / Dimension:	0.291" L x 0.118" W (7.40mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	--
Resistance - Post Trip (R1) (Max):	180 mOhms
Series:	PolySwitch®
Time to Trip:	3.5s
Current - Trip (It):	2.3A
Current - Hold (Ih) (Max):	1.2A
Current - Max:	40A
Voltage - Max:	33V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction on PTC Resettable Fuses

PTC Resettable Fuses are one of the common Over-Current Protection Devices (OCPDs) used in industry. They are a special type of fuses that can provide over-current protection while having the capability to be reset after the fault is cleared. This type of fuse offers several advantages over standard circuit fuses in that it can be used in applications that require multiple reset operations and offers a much longer service life than traditional fuses. They can be used for both AC and DC circuits and can also be used in low-voltage and high-voltage applications. RTE120-2 Application Field and Working Principle

The RTE120-2 series of PTC Resettable Fuses is designed to provide effective over-current protection for DC and AC applications. The low current rating is from 3A to 6A, making the fuse suitable for use in low-power applications. The fuses work on a temperature-based principle and use a PTC (Positive Temperature Coefficient) element to detect the current level and trigger the reset function. When the current exceeds the rating, the PTC element will heat up and trigger the reset function. Upon the fault being cleared, the PTC element will cool down and the fuse will reset itself. The maximum operating voltage of the RTE120-2 series is 32V and the fuse is UL Recognized and RoHS compliant. They are UL Recognized to UL 248 Fuses and RoHS compliant. Other features include the ability to provide over-current protection while withstanding high currents for up to 10 minutes, flexibility for repeat trips, and superior long-term stability. The main application fields for the RTE120-2 series are LED lighting, security, telecom, networking, industrial control, and military. They are suitable for use in applications where multiple reset operations are required, as well as low-voltage and high-voltage applications. The fuses are designed to protect against short circuit, over-voltage, over-current, and surges, and offer high reliability and safety. Conclusion

The RTE120-2 series of PTC Resettable fuses are a reliable and effective way to protect circuits from over-current. Their flexible design allows for repeat trips and high-currents to be withstood for up to 10 minutes. They are ideal for applications where multiple reset operations are required, are UL Recognized to UL 248 Fuses and RoHS compliant, and offer superior long-term stability. The main application fields are LED lighting, security, telecom, networking, industrial control, and military, and they are suitable for use in low-voltage and high-voltage applications.

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