Hi-Density Filtered Adapter
for Telecommunications
Within the telecommunications industry, it has been
standard practice to use an adapter (male/female) type
of EMI filtered connector as the interface between the
switching system electronics and the premise wiring.
These filtered adapters provide effective containment
of EMI compared to either D-subminiature or 50-position
“ribbon” contact type connectors.
The following several factors have mandated the
development of a new generation of filtered adapters.
Mechanical Specifications
Shell
. . . . . . . . . . . . Zinc diecast, nickel plated
. . . . . . . . . . . . . . . .
150 µ inches
(3.81 µm)
min.
Insulators
. . . . . . . . Thermoplastic, UL94V-0
Contacts
. . . . . . . . . One-piece, screw machined
. . . . . . . . . . . . . . . .
Copper alloy, contact area plated
. . . . . . . . . . . . . . . .
50 µ inches
(1.27 µm)
gold
. . . . . . . . . . . . . . . .
over 50 µ inches
(1.27 µm)
nickel
Ground Plane
. . . . . Brass, solder plated
Grounding
Springs
. . . . . . . . . . Beryllium copper, tin plated per
. . . . . . . . . . . . . . . .
MIL-T-10727
Operating
Temperature.
. . . . . . -55°C to +125°C
Capacitor.
. . . . . . . . High performance ceramic
. . . . . . . . . . . . . . . .
feed-thru utilizing ultra low
. . . . . . . . . . . . . . . .
ESR design
Special Requirements
s
s
s
s
Higher density wiring
The need for more contacts, usually
a multiple of 16
Higher reliability contact geometries
Bellcore TR-NWT-001089 requirements
s
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1000 volts AC withstand for one minute
2500 volts spike surge testing
s
Improved flammable resistant plastic insulators
Spectrum Control, in response to these unique
requirements of the telecommunication industry,
has developed a new Hi-Density filtered adapter.
Features
s
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Electrical Specifications
Rated Voltage.
. . . . . 100 VDC
Current
Rating
. . . . . . . . . . . 3 Amps
DC Resistance
. . . . . 15 milliohm max.
Dielectric
Withstanding
Voltage
. . . . . . . . . . 1000 VRMS (FCC Part 68 test)
Capacitance
. . . . . . . 1000 pF, ±25%
Voltage Surge
. . . . . meets 2500 volts surge (10/1000)
. . . . . . . . . . . . . . . .
(See Wave form figure on
. . . . . . . . . . . . . . . .
next page)
New ceramic technology and filter element
construction to accept higher voltages
Improved reliability compared to “ribbon”
type connectors
Integral ground plane and one-piece diecast
housing for the highest level of EMI integrity
More contacts/wires per square inch of panel space
through Hi-Density arrangements
64 contact positions standard, with 78 positions
available by request in any filter combination
Filtered Connectors
147
s
s
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SPECTRUM CONTROL INC.
• 8031 Avonia Rd. • Fairview, PA 16415 • Phone: 814-474-2207 • Fax: 814-474-2208 • Web site: www.spectrumcontrol.com
SPECTRUM CONTROL GmbH
• Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
Hi-Density Filtered Adapter
for Telecommunications
Insertion Loss (dB)
Typical Insertion Loss
50
40
30
Filter Performance
Minimum Insertion Loss
20 MHz
50 MHz
100 MHz
500 MHz
1 GHz
2 GHz
5 GHz
. . . . . . . . . . . . . . . . . . . . . . 7 dB
. . . . . . . . . . . . . . . . . . . . . 14 dB
. . . . . . . . . . . . . . . . . . . . . 20 dB
. . . . . . . . . . . . . . . . . . . . . 32 dB
. . . . . . . . . . . . . . . . . . . . . 35 dB
. . . . . . . . . . . . . . . . . . . . . 41 dB
. . . . . . . . . . . . . . . . . . . . . 39 dB
20
10
0
1MHz
10MHz
100MHz
Frequency
1GHz
5GHz
Above curves represent application of proper
grounding fundamentals, for assistance consult
with Spectrum Control.
Insertion loss measured per MIL-STD-220, no load, 50 ohm source
and load. Above data represents guaranteed minimum.
Part Number for Ordering: #56-645-002
Peak Pulse Voltage, % Vpp
.520
(13.21)
.050
(1.27)
100
Pulse Wave Form* (10 x 1000)
tr
Peak Value – Vpp
Hall Value –
50
10 x 1000 Waveform
Vpp
2
Test Waveform
Parameters
tr = 10μsec
tp = 1000μs
.243
(6.17)
#4-40 UNC - 2B
Locking Inserts
4 plcs.
21
.440
(11.18)
41
60
2
1.000
(25.40)
Side View
2.079
(52.81)
.238
(6.05)
et
0
0
tp
1
2
3
4
t - - Time - - msec
5
6
38
19
*
Reference Bellcore TR-NWT-1089, Vpp = 1000V
77
Pin Face
58
Position numbers
shown for reference
2.635
(66.93)
2.062
(52.37)
.082
(2.08)
.190
(4.83)
.190
(4.83)
.615
(15.62)
.041
(1.04)
.0475
(1.21)
.095
(2.41)
2.406
(61.11)
Socket Face
Dimensions in inches
(mm)
.416
(10.57)
SPECTRUM CONTROL INC.
• 8031 Avonia Rd. • Fairview, PA 16415 • Phone: 814-474-2207 • Fax: 814-474-2208 • Web site: www.spectrumcontrol.com
SPECTRUM CONTROL GmbH
• Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
148
Filtered Connectors
NXP MCU
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