Smiths Connectors is now Smiths Interconnect


MarketID in (1,3,4,6,7,8,11)
  • Ultraminiature triax connectors in threaded and quick disconnect formats
  • Offered in straight, right angle, cable and PCB mount configurations
  • Designed for numerous low loss twinaxial cables and concentric triax cables

The triax connector line features our ultraminiature NDL connector in both the threaded (NDL-T) and quick disconnect (NDL-Q) versions. The series includes straight and right angle cable and PCB mount connectors and in-series and between series adapters. Cable mount connectors are designed for numerous low-loss twinaxial cables and concentric triaxial cables available in a variety of impedance values. These cables are designed for all types of data-bus and video interconnect systems including MIL-STD-1553B, ARINC 429, 100 Base-T, Ethernet, high speed video hot-link and Fiber Channel data links.  

Mechanical & Environmental Specifications

Durability 1000 Mate/Unmate cycles min.
Corrosion MIL-STD-202 Method 101, Test Condition B
Temperature Rating -65˚C to + 165˚C
Shock MIL-STD-202 Method 213, Test Condition B
Vibration MIL-STD-202 Method 204, Test Condition B
Thermal Shock MIL-STD-202 Method 107, Test Condition B
Coupling Nut Torque (NDL-T)
Recommended Proof Torque
2.3 in-lbs min
7.0 in-lbs
Jam Nut Recommended
4-5 in-lbs
Mating Torque (NDL-T)  2.5 in-lbs
Engagement Disengagement
Force (NDL-Q)
3.0 lbs min

Materials and Finishes

Shell & Center/Intermediate Contacts Brass per ASTM-B16, Alloy UNS C36000
or BeCu per ASTM-B196, Alloy UNS C17200, C17300
Gold plate per MIL-DTL-45204, Type II, Class 1
Shell Plating  
Insulator PTFE per ASTM-D 1710
O-Ring Silicone rubber per A-A-59588


Contact Current Rating 2.0 Amps max.
DWV Center contact to intermediate contact: 1000 Vrms min
Intermediate contact to outer contact: 400 Vrms min.
Insulation Resistance 5.000 Mega-Ohms min.
Center contact to intermediate contact: 250 VDC
Intermediate contact to outer contact: 125 VDC
RH Hi Potential Withstanding Voltage Center contact to intermediate contact:
500 vrms @ 5MHz
Intermediate contact to outer contact:
125 vrms @ 5 MHz
Corona Level @ 70,000 Center contact to intermediate contact: 125 VAC
Permeability 2.0 max.
Risetime Degradation 800 ps @ 1MHz
All specifications subject to change without notice.