BI Technologies Debuts BPC and BPR Series Resistors
The SMT Division of BI Technologies (Fullerton, CA), a subsidiary of TT electronics plc (Patterson, NJ), debuted its BPC and BPR Series of non-inductive planar power resistors with power ratings from 3 W to 50 W at 70 °C. The BPC and BPR Series are vertically oriented, through-hole, planar power devices with thick-film-resistive elements on ceramic substrates that are designed to dissipate power above the circuit board. They are suitable for withstanding shock-prone and/or vibration-prone environments.
The vertical orientation of the devices provides more flexibility in PC board design and eliminates the need for high-temperature soldering to PCBs. The BPC Series resistors are available in 3 W, 5 W, 7 W and 10 W power ratings at 70 °C, with resistance ranges from 0.1 Ω to 200 kΩ, and standard tolerances of ±1%, ±2%, ±5% and ±10%. TCRs are 100 ppm/°C, and the operating temperature range is from -55 °C to +125 °C. The maximum operating voltage is 300 Vac/500 Vdc.
The BPR Series resistors are available in 3 W, 5 W, 7.5 W, 10 W, 20 W, 30 W, 40 W and 50 W power ratings at 70 °C, with resistance ranges from 0.1 Ω to 200 kΩ, and standard tolerances of ±1%, ±2%, and ±5%. TCRs are 100 ppm/°C, and the operating temperature range is from -55 °C to +125 °C. The maximum operating voltage is 500 Vdc, with a dielectric strength of 750 V.
The BPC Series resistors have standard copper-alloy, through-hole leads, while the BPR Series devices feature heavy-duty phosphor-bronze double leads. Both series are RoHS-compliant. Low-volume pricing starts at $0.31 for the BPC Series and $1.03 for the BPR Series, with lead times from stock to six weeks. Samples are available for customer prototypes.
