30R600UMR Circuit Protection

Resistance - Initial (Ri) (Min):	5 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.402" (10.20mm)
Thickness (Max):	--
Height - Seated (Max):	1.055" (26.80mm)
Size / Dimension:	0.650" L x 0.118" W (16.50mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	40 mOhms
Series:	POLY-FUSE®, 30R
Time to Trip:	16s
Current - Trip (It):	12A
Current - Hold (Ih) (Max):	6A
Current - Max:	40A
Voltage - Max:	30V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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PTC Resettable Fuses

PTC (Positive Temperature Coefficient) Resettable fuses are a relatively new type of circuit protection device that are becoming increasingly popular. They offer the benefits of improved safety, longer lifetime and improved reliability. The 30R600UMR is a PTC resettable fuse designed for automotive, industrial and consumer applications.

Application Field and Working Principle

The 30R600UMR is a polymeric positive temperature coefficient (PPTC) resettable fuse that is designed to offer overcurrent protection in a variety of applications, especially in automotive, industrial and consumer electronics. The device has a stable and consistent overcurrent protection performance and can quickly reset itself after the fault condition is removed.When no external current is applied to the fuse, the component\'s temperature remains low and its resistance remains low. This allows current to flow through the device. However, when an overcurrent is applied to the device, the temperature of the component will rise and cause its resistance to increase. This increases the resistance of the device and limits the current flow. The increased resistance restricts the amount of current that can pass through the device, thereby preventing damage to the circuit. When the fault current is removed, the device is able to cool down and reset itself automatically, allowing current to flow through the component.This type of protection provides many advantages compared to traditional fuse designs. The temperature-regulated resetting working principle eliminates the need to replace the fuse after a fault condition is removed, which in turn reduces repair costs, increases reliability and eliminates maintenance costs. The 30R600UMR also offers improved protection in applications where a traditional fuse could easily be damaged or destroyed due to high transient voltages or inrush currents.

Advantages

The 30R600UMR PTC resettable fuse offers many other advantages compared to traditional fuse designs, such as:

• Wide operating temperature range (-40℃ to 85℃)
• Low temperature coefficient
• High current holding capacity up to 6A
• High surge current capability
• Wide trip voltage range up to 32V AC/DC
• Rapid reset time
• High insulation resistance
• Small size and light weight, easy to install

The PTC Resettable fuse offers a range of other benefits, such as easy installation, reduced cost and enhanced reliability. The device can be suitable placed in a wide variety of applications, including automotive and consumer electronic applications.

Conclusion

The 30R600UMR is a PTC Resettable Fuse designed for automotive, industrial and consumer applications. The device has a stable and consistent overcurrent protection performance and can quickly reset itself after the fault condition is removed. This type of protection offers numerous benefits, such as improved safety, longer lifetime and improved reliability. It is ideal for use in a variety of applications, providing surge protection, overcurrent protection and circuit protection.

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