PTGL09AR390M9C61B0

Resistance - 25°C (Typ):	39 Ohms
Approvals:	UL
Lead Spacing:	0.256" (6.50mm)
Thickness (Max):	--
Height - Seated (Max):	0.630" (16.00mm)
Size / Dimension:	0.394" Dia x 0.256" W (10.00mm x 6.50mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-10°C ~ 60°C
Series:	POSISTOR®, PTGL
Current - Trip (It):	210mA
Current - Hold (Ih) (Max):	130mA
Current - Max:	1.2A
Voltage - Max:	265V
Type:	Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

PTC Resettable Fuses have become an integral part of many industrial and consumer applications. The series PTGL09AR390M9C61B0, specifically, are a kind of resettable fuse that offers reliable over-current protection for a broad range of applications. They are highly reliable, safe and efficient, providing a great degree of flexibility and cost savings for their users.

Application Field

The PTGL09AR390M9C61B0 series is used in a wide range of applications. Most notably, they are used in consumer electronics, including cell phones, computers, tablets and portable audio systems. They are also used in automotive, industrial and medical applications. In automotive applications, these components are used in lighting, power mirrors, fuel injector circuits, brake systems and air conditioning systems. In industrial applications, the components are used in heating systems, motor drives and robotics. In medical applications, they are used in vital sign monitors, diagnostic instruments and laboratory analyzers.

Working Principle

The PTGL09AR390M9C61B0 series offers a unique over-current protection solution. These components use a Positive Temperature Coefficient design which enables them to act as both a fuse and a Resistor depending on the voltage applied. When the current flowing through the fuse exceeds an established threshold, the Nickel-Metal Hydride elements in the fuse will heat up and cause the PTC to open. This rapid heat up and cooling cycle is referred to as a “thermal trip”. When the PTC is in the tripped state, it will act as a resistor, dramatically reducing the amount of current passing through the circuit. Once the over-current condition is removed, the PTC will cool down and return to its normal low resistance state. This feature effectively shuts off the current to the downstream components while allowing power to continue flowing to the rest of the circuit.

Conclusion

The PTGL09AR390M9C61B0 series of PTC Resettable Fuses are highly reliable and efficient components that offer a great degree of flexibility and cost savings for their users. They provide over-current protection to a broad range of applications, including consumer electronics, automotive, industrial and medical applications. The components are easily reset and capable of providing a high level of protection with minimal costs.

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