True 75 Ohm BNC Straight Cabled Plug 3 Piece Solder or Crimp Captivated Contact
PART NUMBER
CABLE TYPE
CPMC-68-2
RG-59, 140, 302,
Belden 9209A, 8279, 8241, 8263,
Commscope 5563
Gepco VJ59U
CONTACT I.D.
BODY I.D.
FERRULE I.D.
.028 (0.71)
.152 (3.86)
.252 (6.40)
CPMC-68-3
Belden 8281, 9231, 9141, 735A
Commscope 7501
VP618PVC
.036 (0.91)
.203 (5.16)
.330 (8.38)
CPMC-68-5
RG-6
Belden 8215
.033 (0.84)
.191 (4.85)
.355 (9.01)
CPMC-68-10
Belden 82108, 89108
Coleman 99969
.036 (0.91)
.149 (3.78)
.234 (5.94)
CPMC-68-18
Belden 8218
.021 (0.53)
.105 (3.81)
.180 (4.57)
CPMC-68-20
RG-179, 187
Belden 1520A
.016 (0.41)
.067 (1.70)
.128 (3.25)
CPMC-68-33
Belden 735A
Commscope 735,
Helex/Hitemp 735
BT3002, TZC75024
.021 (0.53)
.082 (2.08)
.160 (4.06)
CPMC-68-34
Belden 1855A, 720A
Commscope 7538,
Gepco 7538
.028 (0.71)
.105 (3.81)
.180 (4.57)
CPMC-68-35
Belden 1505A, 734A
Commscope 5565,
Gepco VPM2000
.036 (0.91)
.152 (3.86)
.252 (6.40)
CPMC-68-36
Belden 1695A
Gepco VSD2001TS
.044 (1.12)
.176 (4.47)
.265 (6.73)
CPMC-68-45
Belden 1694A, 9248,
Commscope 5765
Gepco VSD2001
.044 (1.12)
.187 (4.75)
.290 (7.37)
CPMC-68-50
Belden 1506A, 82259, 89259,
Gepco VPM2000TK, VPM2000TS
.036 (0.91)
.138 (3.51)
.234 (5.94)
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
Cambridge Products, P.O. Box 1732, Waseca, MN 56093-0832 • 1-800-243-8814 • Fax: 507-833-6287 • www.cambridgeproducts.com
BNC Connectors - True 75 Ohm
Specifications
INCHES (MILLIMETERS)
CUSTOMER DRAWINGS AVAILABLE UPON REQUEST
Electrical Characteristics
Impedance: 75 Ohm
Frequency range: 0-3 GHz
VSWR:
BNC Cabled Plugs (except CPMC-68-18) ....... 1.10 + .03 F (F in GHz)
CPMC-68-18 .................................................... 1.22 + .01 F (F in GHz)
BNC Adapters (In-series and Between-series) 1.03 + .02 F (F in GHz)
Working voltage: BNC Cabled Plugs and Adapters
(except CPMC-88-18, 20 and 33) ............ 500 VRMS at sea level
CPMC-88-18, 20 and 33 ......................... 335 VRMS at sea level
Dielectric withstanding voltage:
BNC Cabled Plugs and Adapters
(except CPMC-88-18, 20 and 33) .......... 1500 VRMS at sea level
CPMC-88-18, 20 and 33 ........................ 1000 VRMS at sea level
Insulation resistance: 5000 megohms minimum
Contact resistance:
Outer - Nickel plated initial 1.0 milliohm max,
after environmental 1.5 milliohm max
Center - Initial 3 milliohm max,
after environmental 4 milliohm max
Braid to Body - 2.5 milliohm max (nickel plated), after environmental not applicable
Corona level: 375 volts minimum at 70,000 feet
RF High Potential Withstanding Voltage: 700 VRMS at 4 MHz
Operating temperature: -65O C to 165O C
Corrosion: MIL-STD-202, Method 101, Condition B
Shock: MIL-STD-202, Method 213, Condition B
Vibration: MIL-STD-202, Method 204, Condition B
Moisture resistance: MIL-STD-202, Method 106
Mechanical Characteristics
Durability: 500 cycles min
Force to engage/disengage: 5 lbs. max, after durability 5 lbs max; 1
lb. min.
Coupling nut retention: 75 lbs. min
Contact retention: 6 lbs. min axial force
Material Specifications
Body: Brass, nickel plated .0001 min over copper plated .00005 min
Contact: Brass, gold plated .00005 min over nickel plated .00005
min over copper plated .00005 min
Crimp Sleeve: Copper, nickel plate .0001 min over copper plated
.00005 min
Nut: Zinc, nickel plated over copper plated
Insulator: Teflon
Spring Washer: Beryllium Copper (unplated)
Flat Washer: Steel, nickel plated
Gasket: Silicone rubber
Environmental Characteristics
(meets or exceeds the applicable paragraph of MIL-C-39012)
Thermal shock: MIL-STD-202, Method 107
True 75 Ohm BNC Plug and Jack Mating Engagement
Cambridge Products, P.O. Box 1732, Waseca, MN 56093-0832 • 1-800-243-8814 • Fax: 507-833-6287 • www.cambridgeproducts.com