42 COTO TECHNOLOGY (USA) Tel: (401) 943-2686 / Fax (401) 942-0920 6 (Europe) Tel: +31-45-5439343 / Fax +31-45-5427216
B40 4-Channel RF Relays
Ball Grid Array 4-Channel Relays
The B40 is four independent form A channels in one 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 4-in-one
BGA packaging allows relays to be integrated easily on boards designed
for surface mount processing.
Series Features Applications
BGA Surface Mount IC Testers
Ability to pass GHz signals In-Line Relay Testers
Rise time < 40ρSec Memory Testers
50Ω Characteristic Impedance Mixed Signal Testers
Low Capacitance High Bandpass Applications
Patented Design1
Dimensions in Inches
(Millimeters)
Notes:
1 Protected by one or more of the following
U.S. patents or patents pending: 6025768,
6052045, 6294971; and other foreign patents.
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43
For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com 6 E-mail: info@cotorelay.com
B40 4-Channel RF Relays
NOTES:
1All parameters specified per EIA/NARM
standards for dry reed relays, # RS-421 and
RS-436, if a suitable parametric standard exists.
2Unless otherwise noted, all parameters are
specified at 25°C and 40% RH.
3Life expectancies based on characteristic life
(63.2% failure) calculated from the 2-parameter
Weibull distribution. Contact resistance >2.0Ω
defines end of life.
4Frequency at which the difference between output
and input signal amplitude exceeds -3dB. (Direct
wired using 50Ω coaxial cable.)
5Maximum 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
not cause a closed channel activated at the nominal
coil voltage to open, not an open channel to close.
Max Soldering Temperature: 226°C (438°F) max for
1 minute dwell time. Temperature measured at a
relay ball termination.
B40
Te st Pa ramet er s Condit io ns
1,2
Min Typ Max Units
Coil Resistance 49.5 55.0 60.5
Ω
Nominal Voltage 3.3V Coil 3.3 4.0 Volts DC
Must Operate Voltage 2.4 Volts DC
Must Release Voltage B40-0002 0.4 Volts DC
Coil Resistance 149.4 166.0 182.6
Ω
Nominal Volta ge 5V Co il 5 .0 6.0 Volts DC
Must Operate Voltage 3.8 Volts DC
Must Release Voltage B40-0003 0.4 Volts DC
Switching Voltage Max DC/Peak AC 125 Volts
Switching Current 0.25 Amps
Carry Current (Continuous) Switch and Shield 0.5 Amps
Contact Rating (Resistive Load) Resistive Load 3.0 Watts
Life Expectancy Signal Switching
3
1VDC / 10mA 1000 x 10
6
Ops
Resistive Load
3
12VDC / 10mA 1 x 10
6
Ops
Other Load Conditions
3
Consult Factory
Static Contact Resistance (initial) 0.05VDC / 10mA 0.125
Ω
Dynamic Contact Resistance (initial) 0.5V / 50mA 100 Hz, 1.5 mSec 0.150
Ω
Insulation Res All Isolated Pins 100VDC 10!
10
10 12
Ω
Capacitance Across Contacts Shield Guarding 0.2 pF
Capacitance Open Contact to Coil Shield Guarding 0.3 pF
Capacitance Closed Contact to Coil Shield Guarding 0.5 pF
Operate Time (including bounce) Nominal Voltage coil drive @ 30 Hz, 100 200 µSec
Release Time (Si diode damped) square wave 30 50 µSec
RF Insertion Loss
4
-3 dB roll-off frequency 11.0 GHz
Signal Rise Time (10% - 90%) Corrected for measurement 40 pSec
system response time
Magnetic Interaction
5
Between Adjacent Channels 16 %
V
(
DC/Pk AC
)
V
(
DC/Pk AC
)
V (DC/Pk AC)
Across Contacts
Contact to Coil
Contact To Shield
Dielectric
Strength
100 µA
100 µA
100 µA
150
1000
1000
