RLD30P900UF

Series:	POLY-FUSE®, RLD30
Packaging:	Tape & Box (TB)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Voltage - Max:	30V
Current - Max:	40A
Current - Hold (Ih) (Max):	9A
Current - Trip (It):	18A
Time to Trip:	20s
Resistance - Initial (Ri) (Min):	5 mOhms
Resistance - Post Trip (R1) (Max):	20 mOhms
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Disc
Size / Dimension:	0.949" L x 0.118" W (24.10mm x 3.00mm)
Height - Seated (Max):	1.169" (29.70mm)
Thickness (Max):	--
Lead Spacing:	0.402" (10.20mm)
Approvals:	cURus, TUV

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Introduction

PTC Resettable Fuses are widely used in industrial and consumer applications. As a form of protection, they provide an excellent level of safety with a high degree of current limiting capability. Activation is by direct absorption of excessive or continuous current, where the current heats the element within the device, causing it to expand and de-energize the circuit. The fuse resets itself on subsequent cooling, providing protection throughout the next cycle.The RLD30P900UF is a resettable fuse developed by Raychem Corporation, which has become one of the leading brands in the industry. This high quality fuse provides excellent current protection and high reliability.

Application Field

The RLD30P900UF can be used in a wide range of applications including consumer products, computer accessories, automotive electronics, and a variety of industrial applications. It is suitable for protecting circuit boards, LEDs, motors, and other sensitive electronics from the detrimental effects of over-currents.In appliance applications, the RLD30P900UF provides a cost-effective solution to protecting power supplies, motors, and other sensitive components from damage. It is designed to be used as part of a larger circuit protection system, offering short-term, high-current protection in the event of an overload or mechanical failure.The RLD30P900UF’s wide range of current ratings, low resistance, and quick response time make it ideal for use in high power applications, such as motors, power supplies, and motors in automotive applications. It is also suitable for use in lighting systems, audio systems, computers, and other consumer electronics.

Working Principle

The RLD30P900UF contains an electrical consuming element that heats in response to an over-current situation. The element expands and blocks the flow of current, thus de-energizing the circuit. The over-current situation must remain in order for the element to retain its heat and block the current flow. Once the over-current situation is eliminated, the element cools and returns the circuit to a functional state.The RLD30P900UF has a wide range of current ratings and maximum temperatures, helping to provide reliable protection in a variety of applications. This fuse is designed to quickly react to over-current conditions and provide protection during the peak of the over-current condition, while allowing normal operating current to pass.

Conclusion

The RLD30P900UF is a versatile resettable fuse that can be used in a wide variety of applications. It has a wide range of current ratings, low resistance, and a quick response time, offering excellent protection for circuit boards, LEDs, motors, and other sensitive electronics. Its ability to quickly reset after an over-current situation is an excellent feature, making it suitable for use in high power application, such as motors, power supplies, and automotive applications.

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