SMD1210P020TSA

Series:	POLY-FUSE®, SMD1210
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Voltage - Max:	30V
Current - Max:	10A
Current - Hold (Ih) (Max):	200mA
Current - Trip (It):	400mA
Time to Trip:	20ms
Resistance - Initial (Ri) (Min):	800 mOhms
Resistance - Post Trip (R1) (Max):	5 Ohms
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	1210 (3225 Metric), Concave
Size / Dimension:	0.127" L x 0.102" W (3.22mm x 2.58mm)
Height - Seated (Max):	--
Thickness (Max):	0.032" (0.80mm)
Lead Spacing:	--
Approvals:	cURus, TUV

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SMD1210P020TSA Application Field and Working Principle - PTC Resettable Fuses

PTC Resettable Fuses, also known as polymeric positive temperature coefficient (PPTC) resettable fuses, are self-resetting fuses that protect against electrical surges, current overloads, and short-circuits. The SMD1210P020TSA is a popular PTC resettable fuse among those suitable for power distribution applications. It is designed with a unique Post-Assures Response Time feature to provide reliable and safe performance.The SMD1210P020TSA is an UL certified 6.7Vdc device with a hold current of 20A and a trip current of 22.5A. It is packaged in a 1210 (3.2mm x 2.5mm x 1.25 mm) package, which is easier to solder than other similar PTCs. This PTC fuse is humidity-resistant and robust in operation, providing a high current interrupting capacity of up to 30A.The working principle of the SMD1210P020TSA is based on the PTC effect, which is a unique semiconductor phenomenon. The device is activated when it reaches a set temperature, causing it to transition from a high to a low resistance. This resistance change triggers the PTC to trip and open the circuit, thereby protecting against current overloads and short-circuits. After the fault condition has cleared, the PTC will self-reset and return to its high-resistance state.The SMD1210P020TSA is suitable for a range of applications, including DC power distribution, battery charging systems, solar cell and wind turbine protection, and industrial machinery. It is even popular in automotive systems, particularly in applications requiring the protection of sensitive or low-voltage electronics.The primary benefit of PTC Resettable Fuses is their ability to quickly limit high current surges, while their self-resetting feature eliminates the need to replace the fuse elements after they have operated. Additionally, their slim package size allows them to fit into limited space applications.In conclusion, the SMD1210P020TSA, a Post-Assured Response Time PTC resettable fuse, is an ideal solution for a variety of power distribution applications. Its self-resetting feature is a big advantage, eliminating the need to frequently replace blown fuses. Its slim package size makes it suitable for limited space area applications, while its robust and humidity-resistant construction ensures reliable performance.

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