Vishay/Thin Film's PHP series of precision high-power thin film chip resistors feature a low absolute TCR of ±25 ppm/°C, tolerances down to ±0.1 percent, and high power ratings from 1.0 to 2.5 W over a wide temperature range of -55°C to 125°C. With stable film and performance characteristics of 1000 ppm at 70°C for 2000 hours, these devices are optimized for high-precision medical imaging, industrial and telecommunications equipment, and test and measurement instrumentation.
Featuring a high-purity ceramic substrate, the PHP series chip resistors are designed with enlarged backside terminations to reduce the thermal resistance between the topside resistor layer and the solder joint on the end users’ circuit board.
Offered in the 1206 and 2512 case sizes, the PHP series offers a resistance range from 100 Ω to 10 kΩ, with non-standard values available. The resistors feature twice the power rating over traditional thin film chip resistors in the same case sizes, low noise of < -30 dB, low voltage coefficients of 0.1 ppm/V, and voltage ratings from 100 V to 200 V. Available with lead (Pb)-free or lead terminations, the devices are RoHS-compliant and flame-resistant in accordance to UL 94 V-0.
PHP Series Thin Film Chip Resistors