PTGL09AS2R2K3B51A0

Resistance - 25°C (Typ):	2.2 Ohms
Approvals:	UL
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.563" (14.30mm)
Size / Dimension:	0.366" Dia x 0.138" W (9.30mm x 3.50mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-30°C ~ 85°C
Series:	POSISTOR®, PTGL
Current - Trip (It):	694mA
Current - Hold (Ih) (Max):	522mA
Current - Max:	4A
Voltage - Max:	51V
Type:	Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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PTC Resettable Fuses are an important type of protection device designed to limit overcurrent and overvoltage conditions for a variety of circuits and applications. The PTGL09AS2R2K3B51A0 is a small form factor PTC Resettable Fuse with a broad range of applications in medical, automotive, consumer and industrial markets.In most applications, the device is used as part of a system to provide short circuit and overcurrent protection. Once the overcurrent or overvoltage condition is detected, the device will open the circuit and reset when the condition is no longer present. This safe, cost-effective protection of equipment and circuits is critical for protecting against damage by high current and voltage.The PTGL09AS2R2K3B51A0 is designed to provide reliable, effective protection for a variety of AC or DC applications. The device features a low voltage drop, low static power and low temperature coefficient. It has an ignition temperature of 130°C, a trip range of 8-16 amps, and a power dissipation of 0.3 watts.In order to understand the working principle of the PTGL09AS2R2K3B51A0, it is necessary to have a basic understanding of PTC Resettable Fuses. This type of fuse is made up of two parts: a resistor and a PTC thermistor. The resistor provides the current-limiting function, while the PTC thermistor acts as an active circuit breaker.When the current or voltage exceeds the preset trip level, the PTC thermistor heats up and acts as an open switch. This creates an open circuit between the power and load, cutting off the flow of current and protecting the circuit from further damage. When the fault condition is no longer present, the PTC thermistor cools down and its resistance returns to a low level, restoring the original flow of current.The PTGL09AS2R2K3B51A0 Resettable Fuse has a broad range of applications in medical, automotive, consumer and industrial devices. Its low voltage drop, low static power and low temperature coefficient make it a reliable choice for protection against overcurrent and overvoltage conditions in consumer electronics, automotive equipment, medical equipment, industrial electronics, LED lighting, power supplies, motor controllers, and more. The device also features reverse voltage protection, which can help protect against damage if the voltage is accidentally reversed.The PTGL09AS2R2K3B51A0 Resettable Fuse is a reliable, cost-effective solution for providing overcurrent and overvoltage protection for a range of applications. Its design and feature set make it a reliable choice for protecting valuable equipment and circuits against harm.

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