en.Wedoany.com Reported - Vishay Intertechnology, Inc. expands its overcurrent protection product portfolio with the introduction of six new series of surface-mount polymer positive temperature coefficient (PTC) thermistors, designed to save board space and enhance efficiency in computer, industrial, and consumer applications.

The PPTC0603E3, PPTC0805E3, PPTC1206E3, PPTC1210E3, PPTC1812E3, and PPTC2920E3 series from Vishay BCcomponents provide resettable overcurrent protection for low-voltage circuits such as USB-C ports in computers, computer peripherals, Power over Ethernet (PoE) applications in telecom equipment, battery-powered industrial tools and consumer devices and appliances, industrial automation systems, and home automation heating controls.

For these applications, the new thermistors combine a hold current of up to 5.0 A with a fast trip time as low as 50 ms, while a low resistance as low as 5 mΩ reduces voltage drop and improves efficiency. To minimize board space requirements, the devices are offered in six compact case sizes from 0603 to 2920, with heights as low as 0.3 mm to 2 mm.

The RoHS-compliant and halogen-free PPTC0603E3, PPTC0805E3, PPTC1206E3, PPTC1210E3, PPTC1812E3, and PPTC2920E3 series are compatible with lead-free soldering processes up to 260°C. SPICE and 3D models of these thermistors are available for designers during development.

Device specifications for each series are as follows: PPTC0603E3 case size 0603, hold current 0.02 to 0.5 A, trip current 0.06 to 1.0 A, maximum voltage 6 to 60 VDC, maximum current 40 A, typical power dissipation 0.5 W, maximum trip time 0.08 to 1.0 s, minimum resistance 0.1 to 12 Ω, maximum resistance 0.68 to 70 Ω; PPTC0805E3 case size 0805, hold current 0.05 to 0.75 A, trip current 0.15 to 1.5 A, maximum voltage 6 to 30 VDC, maximum current 40 to 100 A, typical power dissipation 0.5 to 0.6 W, maximum trip time 0.10 to 1.5 s, minimum resistance 0.09 to 3.6 Ω, maximum resistance 0.35 to 20 Ω; PPTC1206E3 case size 1206, hold current 0.05 to 1.1 A, trip current 0.15 to 2.2 A, maximum voltage 8 to 60 VDC, maximum current 10 to 100 A, typical power dissipation 0.6 to 0.8 W, maximum trip time 0.1 to 1.5 s, minimum resistance 0.04 to 3.6 Ω, maximum resistance 0.21 to 20 Ω; PPTC1210E3 case size 1210, hold current 0.05 to 1.5 A, trip current 0.15 to 3.0 A, maximum voltage 6.0 to 90 VDC, maximum current 10 to 100 A, typical power dissipation 0.6 to 1.5 W, maximum trip time 0.1 to 1.5 s, minimum resistance 0.04 to 3.6 Ω, maximum resistance 0.11 to 50 Ω; PPTC1812E3 case size 1812, hold current 0.14 to 2.6 A, trip current 0.34 to 5 A, maximum voltage 8 to 60 VDC, maximum current 10 to 100 A, typical power dissipation 0.8 to 1 W, maximum trip time 0.15 to 2.5 s, minimum resistance 0.015 to 1.5 Ω, maximum resistance 0.047 to 6 Ω; PPTC2920E3 case size 2920, hold current 0.5 to 5.0 A, trip current 1 to 10 A, maximum voltage 15 to 60 VDC, maximum current 10 to 40 A, typical power dissipation 1.5 to 2 W, maximum trip time 0.30 to 20 s, minimum resistance 0.005 to 4.0 Ω, maximum resistance 0.025 to 1.4 Ω.

Samples and production quantities of the new PTC thermistors are available now, with a lead time of 12 weeks.