Electronic Design
Protection Device Is Capable Of 30A Hold Currents

Protection Device Is Capable Of 30A Hold Currents

The company’s latest Metal Hybrid PPTC (MHP) technology finds employment in high-rate-discharge battery applications at ratings above 30 Vdc/30A. The MHP technology uses a hybrid circuit protection approach that combines a bimetal protector in parallel with a polymeric positive temperature coefficient (PPTC) device. This provides resettable over-current protection and utilizes the low resistance of the PPTC device to help prevent arcing in the bimetal protector at higher currents while also heating the bimetal to keep it open and in a latched position. The initial component, the MHP30-36, has a 36-Vdc/100A maximum rating and a time-to-trip under 5s at 100A (at +25°C). Hold current is 30A and the initial resistance is under 2 m?. TYCO ELECTRONICS LTD., Menlo Park, CA. (800) 227-7040.

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