Coto Banner
B41

Top View
B41

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 W 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
u BGA Surface Mount
u Ability to pass GHz signals
u Rise time < 40pSec
u ~50 W Characteristic Impedance
u Low Capacitance
u Patented Design1

Applications
u IC Testers
u In-Line Relay Testers
u Memory Testers
u Mixed Signal Testers
u High Bandpass Applications

* Dimensions shown are before soldering.

Top View
Ball Pattern

Top View
Schematic
PDF Logo
B41mech
B41pad02

Dimensions in Inches (mm)
METRIC DIMENSIONS GOVERN
General Dimensional Tolerance: ± .006 ( 0.15)

Notes:
 1 Protected by one or more of the following
 US Patents: 6025768, 6052045, 6294971,
 6683518, RE38381 and other foreign patents.
B41ordinfo02

B41 RF Relays Specifications Table

 

 

 

B41

 

 

Test Parameters

Conditions1,2

Min

Typ

Max

Units

Coil Resistance

3.3V Coil

49.5

55.0

60.5

W

Nominal Voltage

3.3V Coil

 

3.3

4.0

Volts DC

Must Operate Voltage

3.3V Coil

 

 

2.4

Volts DC

Must Release Voltage

3.3V Coil (B41-0002)

0.4

 

 

Volts DC

Coil Resistance

5V Coil

144.0

160.0

176.0

W

Nominal Voltage

5V Coil

 

5.0

6.0

Volts DC

Must Operate Voltage

5V Coil

 

 

3.8

Volts DC

Must Release Voltage

5V Coil (B41-0001)

0.4

 

 

Volts DC

Switching Voltage

Max DC/Peak AC

 

 

125

Volts

Switching Current

 

 

 

0.40

Amps

Carry Current (Continuous)

Switch and Shield

 

 

0.5

Amps

Contact Rating (Resistive Load)

Resistive Load

 

 

3.0

Watts

Life Expectancy:

 

 

 

 

 

Signal Switching3
Resistive Load3
Other Load Conditions3

1VDC / 10mA
12VDC / 10mA
Consult Factory

 

1000
1
-

 

x 109 Ops
x 106 Ops
-

Static Contact Resistance (initial)

0.05VDC / 10mA

 

 

0.125

W

Dynamic Contact Resistance (initial)

0.5V / 50mA 100 Hz, 1.5 mSec

 

 

0.150

W

Insulation Res - All Isolated Pins

100VDC

1010

1012

 

W

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

Dielectric Strength:

 

 

 

 

 

Across Contacts
Contact to Coil
Contact to Shield
Between Contacts of Adjacent Channels

100 µA
100 µA
100 µA
100 µA

 

150
1000
1000
1000

 

V (DC/Pk AC)
V (DC/Pk AC)
V (DC/Pk AC)
V (DC/Pk AC)

Operate Time - (including bounce)

Nominal Voltage coil drive
@ 30 Hz, square wave

 

100

200

µSec

Release Time - (Si diode damped)

Nominal Voltage coil drive
@ 30 Hz, square wave

 

30

50

µSec

RF Insertion Loss4

-3 dB roll-off frequency

8.0

 

 

GHz

RF Inter-Channel Isolation

Signal isolation between adjacent
closed channels, 1 GHz test signal

40.0

 

 

dB

Signal Rise Time - (10% - 90%)

 

 

 

45

pSec

Magnetic Interaction5

Between adjacent channels

 

 

16

%

Get It In .PDF Format

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 >2.0W defines end of life.
4Frequency at which the difference between output and input signal amplitude exceeds -3dB.
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 neither cause a closed channel activated at the nominal coil voltage to open, nor 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.
Moisture sensitive component.  Handle as J-STD-020B level 5a.
[Home] [Relays] [Switches] [Sales] [Literature] [Contact Us]

Coto Technology
171 Service Road, Suite 301
Warwick, RI 02886-1015
401-943-2686
FAX: 401-942-0920


 
Coto Logo

Coto Technology BV
Jan Campertstraat 11
6416 SG Heerlen, The Netherlands
+31 45 5439345
FAX: +31 45 5427216