Malvern, Pa. Vishay Intertechnology, Inc. offers three new series of axial-leaded wirewound/metal oxide resistors that come competitively priced for high-volume applications. The new devices deliver power ratings from 1 to 20 watts (W), and resistance values from 0.1 ohms to 50 kohms. They are intended for applications that require capacitive discharge, short term pulsing, high power dissipation, voltage division, and dc-to-dc conversion in a variety of products including white goods, home entertainment systems, power tools, and power supplies.
The new CA wirewound resistor is auto-insertable for easy integration into kitchen appliances, automotive devices, and entertainment/consumer devices. Available in two models with power ratings of 1 W and 2 W, the new devices deliver a resistance range of 0.1 ohms to 1 kohms with tolerances of ±5% and ±10%, and a temperature coefficient of ±350 ppm/°C. The series has an operating temperature range of -65°C to 275°C. A high-temperature coating provides environmental protection.
The new Vishay Dale CP wirewound/metal oxide resistor offers a high power-to-size ratio with a power rating range of 2 W to 20 W and length-by-width dimensions that range from 18 x 7 mm to 60 x 14 mm with heights from 7 to 13.5 mm. Depending on resistance value, the CP resistors are available with a wirewound element on a woven fiberglass core or with a metal oxide element on a ceramic core.
Resistance values for the CP resistors range from 0.1 ohms to 1 kohms in the wirewound technology and 83 ohms to 50 kohms in the metal oxide technology, both with tolerances of ±5% and ±10%. The devices feature a temperature coefficient of ±400 ppm/°C and an operating temperature range of -65 °C to 275°C. The resistor's ceramic case is available with circuit board standoffs. The cement-potting compound and ceramic case provide high thermal conductivity in a fireproof package that can be used in applications that require UL approval.
The CPCC and CPCF resistors are space-saving solutions that mount vertically on the printed-circuit board. Combining power ratings from 3 W to 10 W and length-by-width dimensions from 12 x 8 mm to 16 x 12 mm with heights from 25 mm up to 35 mm, respectively, these resistors also deliver a high power-to-size ratio. Resistance values range from 0.1 ohms to 50 kohms. Like the CP resistors, the CPCC and CPCF devices utilize wirewound and metal oxide technology and feature a temperature coefficient of ±400 ppm/°C and an operating temperature range of -65°C to 275°C, as well as the thermal benefits of a ceramic casing and cement potting compound.
Pricing for U.S. delivery ranges from $0.04 to $0.15 per piece depending on model, size and resistance value, in quantities of 10,000. Samples are available now, with lead times of 8 to 10 weeks for production quantities.
Call (402) 564-3131