Dimensions are shown in mm (inch)
Dimensions subject to change
90-K 90-C
90
PDFINFO R F - 00090
RF Coaxial Connectors QTTM BNC
Introduction
This totally new termination technique provides a
high pressure, gas tight center conductor joint of
exceptional mechanical integrity, without crimping
the center contact. The QT BNC is a pre-assembled
connector with an integral center contact and rear
crimp ferrule. This connector may be terminated
onto cable in under 20 seconds, significantly
reducing installation costs. With only two parts to
handle, the assembly is simple and has no loose
contact to drop or lose. The plastic rear cap on the
connector body is color coded for easy
identification of cable type.
The optional Assembly Tool allows even faster and
easier connector assembly. In one squeeze of the
tool handles the center contact is terminated to the
center conductor and the rear ferrule is crimped at
the same time.
The 75 VQT BNC is available for use with popular
cables used in telecommunication and broadcast
systems.
Mating Interface
PLUG
Dimensions are shown in mm (inch)
Dimensions subject to change
91-K 91-C
91
PDFINFO R F - 00091
QT BNC
RF Coaxial Connectors QTTM BNC
Specifications
ELECTRICAL Impedance 75 Vnominal
Frequency Range DC to 2.0 GHz
Voltage Rating At sea level = 500 Vrms.
Insulation Resistance 5000 MVminimum
Contact Resistance Outer contact = 1.0 mVmaximum
Braid to body = 1.0 mVmaximum
Voltage Standing Wave Ratio (VSWR) DC - 1 GHz: 1.2 maximum. 1 - 2 GHz: 1.3 maximum
Contact Current Rating 1.5 A dc maximum
Insertion Loss 0.2 dB maximum @ 2 GHz
RF Leakage −60 dB typical up to 2 GHz
Dielectric Withstanding Voltage (DWV) 1500 Vrms @ sea level
Corona Level 375 Vrms minimum @ 21 km (70k feet)
Termination Resistance (QT centre contact) 3 mVmaximum (excluding pole resistance)
MECHANICAL Insertion Force 22.3 N (5 lbs.) maximum
Coupling Mechanism Retention 445 N (100 lbs.) minimum
Contact/Insulator Retention 22.3 N (5 lbs.) minimum axial force
Materials Body: Phosphor bronze. Contact: Beryllium copper. Insulators: Polymers rated to UL94VO
Finish/Plating Ferrule: Annealed copper alloy. Center contact: Gold plated. Other metal parts nickel plated.
ENVIRONMENTAL Temperature Rating −40°C to 85°C
Vibration (a) Frequency range from 10 Hz to 500 Hz. (b) Displacement: 0.75 (.029) (c) Acceleration: 98 m/S2
(d) Duration: 6 hours
Shock 490 m/S2for 11 mS
Bump 4000 total at 390 m/S2
GENERAL Connector Durability 200 matings minimum
Cable Retention Force Cable Axial Force Torque
M17/29-RG59/U 133 N (30 lbs.) minimum 0.9 Nm (8.0 in. lbs.)
734 type 133 N (30 lbs.) minimum 0.9 Nm (8.0 in. lbs.)
735A type 45 N (10 lbs.) minimum 0.45 Nm (4.0 in. lbs.)
1694A 133 N (30 lbs.) minimum 0.9 Nm (8.0 in. lbs.)
QT BNC Plug
Assembly Instruction BBAI-1243 (Page 139)
Straight Crimp Plug
Part Number Cap Color Cable Number
W58-124-9019C90 Red 735A
W58-124-9029C90 Dk. Blue 734
W58-124-9039C90 Lt. Blue M17/29-RG59/U
W58-124-9049C90 Black 1694A
