Romoland, Calif. Supporting a wide range of data collection and communications equipment for industrial and military applications, the low-profile, rugged 4256-1003 series of dual data bus interface transformers from Datatronics Romoland Inc. is packaged in a small 23.62 x 16.00 x 3.94-mm footprint.
Fully encapsulated to protect its circuitry, the surface-mount transformers offers a minimum input impedance of 4,000 or 7,200 Ω over the full temperature range of -55°C to 130°C, and frequency range (no load) of 75 kHz to 1 MHz. Other key specifications include an overshoot of 1-volt maximum, common mode rejection at 45dB minimum, and droop at less than 20 percent.
Up to 10 standard turns ratios are available. They range from a 1:1 (primary 1-3, secondary 16-13) to 1.4:1 (primary 1-3, secondary 16-13). Accuracy is within +3 percent.
The data bus transformers support Mil-Std 981, Class S applications, as well as Mil-Std-1553 A/B and MAC AIR Specifications A3818, A5232 and A45690.
In addition to the gull wing surface-mount package, Model 4256-1003 is available in through-hole and flat pack configurations, and is compatible with dip or wave soldering.
Available in tape-and-reel packaging, the transformers are priced at $40.00 each in small quantities of 100 pieces. Delivery is from stock to eight weeks.
Call (909) 928-7700