PTGL5SAS270K6B51B0

Resistance - 25°C (Typ):	27 Ohms
Approvals:	--
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.413" (10.50mm)
Size / Dimension:	0.217" Dia x 0.177" T (5.50mm x 4.50mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-30°C ~ 125°C
Series:	POSISTOR®, PTGL
Current - Trip (It):	178mA
Current - Hold (Ih) (Max):	134mA
Current - Max:	1A
Voltage - Max:	140V
Type:	Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	--

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PTC Resettable Fuses

PTC resettable fuses provide a cost effective protection solution for designers and engineers looking for circuit protection in a wide range of applications. The main benefit of resettable fuses is that they can be reactivated after they have been tripped or shorted out due to over current conditions. This eliminates the need for end-user to replace the fuse, becoming extremely useful in applications where the time, expense and difficulty of replacing the fuse would be a significant issue.The most common type of PTC resettable fuse is the PTGL5SAS270K6B51B0, which is a thermal-type resettable fuse designed for applications up to 5A. It is designed with two wires, an internal sensing element and an external reset or trip point. When the current applied to the wire exceeds the rating of the fuse, the thermal-type sensing element heats up, resulting in the switching of the reset point. This will trip the current and result in the contact being disconnected.In addition to providing circuit protection, the PTGL5SAS270K6B51B0 also provides over-voltage protection and over-temperature protection. When the voltage surpasses the rating of the fuse, the circuit will experience a voltage spike and the thermal sensing element will disengage, preventing damage to the circuitry. Furthermore, the thermal element will also provide over-temperature protection, as when the temperature exceeds the specified threshold, the circuit will be disconnected, thus preventing potential damage. The PTGL5SAS270K6B51B0 is ideal for applications such as electronic equipment, portable devices, telecommunications systems, automotive circuits, and industrial automation systems. It is designed to protect sensitive electronics, as the resettable fuse prevents the over-current from damaging the device while rapidly disconnecting the circuit. The device has an internal resistance of 9 mΩ, an IR impedance of 0.85 mΩ, and a voltage rating of 200-450 V. It can withstand temperatures ranging from -40 to 125 ℃, and it has a relative humidity of 5 - 95%.In order to use the PTGL5SAS270K6B51B0, it is important to consider a few key parameters. These parameters include the resistance value, the power rating, the trip time, the clamping voltage, and the operating temperature range. Once these parameters are determined, the designers can select the right size and type of resettable fuse for the application. The PTGL5SAS270K6B51B0 is a cost effective solution for circuit protection in a wide range of applications. It provides over-voltage protection and over-temperature protection, as well as a rapid disconnection of the circuit in case of an over-current. Furthermore, the resetting feature eliminates the need for end-user to replace the fuse, and it also allows for a wide range of applications, such as portable devices, telecommunications systems, and industrial automation systems.

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