B41 4-Channel RF Relays Ball Grid Array 4-Channel Relays The B41 is four independent form A channels in one planar quad package. Coto’s Ball Grid Array (BGA) construction offers a breakthrough in reed relay performance. This patented technology1 allows for shorter RF paths in a controlled 50 Ω environment to minimize signal attentuation. The designer is now able to switch or pass signals with wider bandwidth and faster rise time than alternative technologies. This is particularly important in Mixed Signal IC testers. This four-inone BGA packaging allows relays to be integrated easily on boards designed for surface mount processing. Series Features Applications Planar BGA Surface Mount IC Testers Ability to pass GHz signals In-Line Relay Testers Rise time < 45 ρSec Memory Testers ~50 Ω Characteristic Impedance Mixed Signal Testers Low Capacitance High Bandpass Applications 1 Patented Design Top View Top View Schematic Top View Ball Pattern Dimensions in Inches (mm) * METRIC DIMENSIONS GOVERN General Dimensional Tolerance: ± .006 ( 0.15) * Dimensions shown are before soldering. B41 RECEIVER BOARD PAD LAYOUT Notes: 1 Protected by one or more of the following US Patents: 6025768, 6052045, 6294971, 6683518, RE38381 and other foreign patents. 50 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216 B41 4-Channel RF Relays NOTES: 1 All parameters specified per EIA/NARM standards for dry reed relays, # RS-421 and RS-436, if a suitable parametric standard exists. 2 Unless otherwise noted, all parameters are specified at 25°C and 40% RH. 3 Life expectancies based on characteristic life (63.2% failure) calculated from the 2-parameter Weibull distribution. Contact resistance >2.0Ω defines end of life. 4 Frequency at which the difference between output and input signal amplitude exceeds -3dB. 5 Maximum increase in operate voltage for any channel when all channel coils are driven at nominal coil voltage and with the same drive polarity. ENVIRONMENTAL RATINGS: Storage Temperature: -35°C to +100°C. Operating Temperature: -20°C to +85°C. Vibration: sinusoidal vibration with an amplitude of 10G over a 10Hz to 2000Hz frequency range shall neither cause a closed channel activated at the nominal coil voltage to open, nor an open channel to close. Max Soldering Temperature: 438°F(226°C) for 1 minute dwell time. Temperature measured at a relay ball termination. Moisture sensitive component. Handle as J-STD-020B level 5a. For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com 6 E-mail: [email protected] 51