PFUF.035.2 Circuit Protection

Resistance - Initial (Ri) (Min):	200 mOhms
Approvals:	cURus, TUV
Lead Spacing:	--
Thickness (Max):	0.028" (0.70mm)
Height - Seated (Max):	--
Size / Dimension:	0.127" L x 0.102" W (3.22mm x 2.58mm)
Package / Case:	1210 (3225 Metric), Concave
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	1.3 Ohms
Series:	PFUF
Time to Trip:	200ms
Current - Trip (It):	750mA
Current - Hold (Ih) (Max):	350mA
Current - Max:	40A
Voltage - Max:	6V
Type:	Polymeric
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PTC Resettable Fuses

PTC (positive temperature coefficient) resettable fuses are a type of fuse designed to protect electrical circuits from damage caused by overcurrents, both from internal or external sources. Unlike traditional fuse elements, which must be replaced after a single fault, PTC resettable fuses can be reset after an overcurrent event. PTC resettable fuses are often used in consumer and industrial electronic applications to protect against excessive current, overvoltage, and transient voltages.The PFUF.035.2 resettable fuse is a popular PTC resettable fuse which is designed for low-voltage applications. The device offers fast and reliable protection against excessive currents and overvoltages, and can tolerate transient voltages up to 250 Vac. The operating voltage range of the device is wide, ranging from 16 VDC to 28 VDC, and the hold-current range is from 35 mA to 200 mA. The PFUF.035.2 resettable fuse is also RoHS compliant, making it an ideal choice for environmentally-friendly applications.The working principle of the PFUF.035.2 resettable fuse is based on the PTC effect, in which the resistance of the device increases exponentially when the current through the fuse exceeds the device\'s pre-defined trip current. This increase in resistance causes a drop in voltage, which effectively \'trips\' the fuse and stops current flow. Upon a reduction in current flow, the resistance of the device returns to its normal level. This allows the fuse to be reset, allowing normal operation to resume.The PFUF.035.2 resettable fuse is particularly well-suited to applications involving cordless or portable electrical equipment, as well as any application involving long-term or continuous overcurrent protection. In addition, due to its compact size and the fact that it does not require replacement after every overcurrent event, the PFUF.035.2 is also cost-effective in comparison to traditional fuses.PTC resettable fuses are a reliable and cost-effective option for applications in need of excellent overcurrent protection. The PFUF.035.2 resettable fuse is a suitable choice for applications involving portable equipment or those which require long-term protection. The device offers fast response times and high current interrupting capacity, in addition to being RoHS compliant. With its wide operating voltage range and hold-current range, the PFUF.035.2 resettable fuse is ideally suited for both consumer and industrial applications.

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