B59101P1120A062

Resistance - Post Trip (R1) (Max):	13 Ohms
Approvals:	--
Lead Spacing:	--
Thickness (Max):	--
Height - Seated (Max):	0.150" (3.80mm)
Size / Dimension:	0.398" L x 0.138" W (10.10mm x 3.50mm)
Package / Case:	2-SMD
Mounting Type:	Surface Mount
Ratings:	AEC-Q200
Operating Temperature:	-40°C ~ 60°C
Series:	--
Resistance - Initial (Ri) (Min):	7.8 Ohms
Current - Hold (Ih) (Max):	355mA
Current - Max:	170mA
Voltage - Max:	24V
Type:	Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to PTC Resettable Fuses

PTC resettable fuses are circuit protection components used to protect against surges and overcurrents in electronic circuits and systems. Unlike traditional fuses which must be replaced after an overload, PTC resettable fuses are self-resetting and can be used multiple times. PTC fuses are made of a special polymer that becomes conductive when heated, allowing them to operate as an open switch when an overcurrent is detected. As the current increases, the resistance of the internal heater rises, and in turn so does the temperature of the polymer.At a certain temperature, the internal polymer will become conductive and the circuit will be closed. This will reduce the current and the temperature will start to drop. Once the temperature drops enough, the polymer will become an insulator again, effectively resetting the fuse and allowing power to flow again.

B59101P1120A062 application field and working principle

The B59101P1120A062 is a PTC resettable fuse that is designed to provide protection in switching circuits and other over-current and over-voltage applications. This device is ideal for protecting against faults and is UL/CSA component recognition approved. The B59101P1120A062 PTC has a working voltage of 125VAC and a maximum current of 6.2A. The breaking capacity is 6.5A (4 times of rated current). The self-reset time is less than 0.1s.The B59101P1120A062 operates by relying on the PTC thermistor present inside the device. When an overcurrent situation occurs, the temperature of the thermistor rises quickly, which causes its resistance to increase. At a certain temperature, the PTC thermistor will switch from a low resistance state to a high resistance one, effectively turning off the circuit and disconnecting the power. As the temperature cools, the thermistor will switch back to a low resistance state and the circuit will reconnect the power.

Conclusion

PTC resettable fuses provide an effective and reliable way to protect circuits from overcurrent and overvoltage faults. The B59101P1120A062 is a PTC device designed for switching applications, with a working voltage of 125VAC and a maximum current of 6.2A. It has a self-reset time of less than 0.1s and is UL/CSA component recognition approved. The B59101P1120A062 is a great choice for those looking for reliable overcurrent and overvoltage protection.

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