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Home » NEWEST Products » New by Manufacturer » Emerson Connectivity Solutions » Johnson / Cinch Connectivity SMA Self Fixture End Launch Connectors
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Johnson / Cinch Connectivity


Johnson / Cinch Connectivity
SMA Self Fixture End Launch Connectors

Johnson / Cinch Connectivity product line of SMA Self Fixture End Launch Connectors overcome the problematic gaps and RF path discontinuities associated with inconsistent soldering processes. Featuring a proprietary design, SMA Self Fixture End Launch Connectors accurately align and hold the center contact to the circuit board plane without the need for special fixtures. Special connector legs tightly grip the center contact to the circuit board plane through the complete soldering process and allow for consistent soldering work on a variety of PCB thicknesses. These connectors also eliminate poor connections that degrade signal quality. SMA Self Fixture End Launch Connectors' contacts and insulator material form an optimized connection point. The contact maintains proper impedance under aggressive torque and axial stresses, while the insulator acts as a seal by compressing itself into the board edge during soldering. This creates a barrier between the inner and outer conductors and protects against solder bridging. The design allows the connectors to offer optimal return loss values for frequencies between 0-26.5 GHz. SMA Self Fixture End Launch Connectors are an ideal option for design engineers who want to reduce complexity of circuit board systems and manufacturing costs by eliminating the need for mounting screws, adapters, aftermarket tools, ad hoc devices.

Features
  • Designed to overcome inconsistencies in the soldering process
  • Enhanced end launch design with legs that align the center contact to the circuit board plane without the need for special fixtures
  • Provide for consistent soldering work on a variety of PCB thicknesses
  • The terminals can provide circuit board support
  • Save time and improve quality in your assembly process
  • Return loss between 0-18 GHz (26.5 GHz for high frequency model) 
  • Decreases manufacturing costs and complexity in circuit board design
Applications
  • Automated Test Equipment
  • Broadband MMIC Power Amplifiers
  • Cellular Linear Power Amplifiers
  • DBS Low-Noise Block Down Convertors
  • Global Positioning Satellite Antennas
  • GPS
  • Phased Array Antennas
  • High Speed Routers and Switches
  • Microwave Filters, Mixers, and Combiners
  • Radar Systems
  • Remote Sensing and Metering
  • RFID (Radio Frequency Identification) Tags
  • Wireless Antennas
Mechanical Specifications
  • Engagement/Disengagement Torque: MIL-PRF-39012, Series SMA Engagement/Disengagement Force: 2 inch-pounds max.
  • Mating Torque: 7-10 inch-pounds
  • Contact Retention: 6 lbs. min. axial force on mating end; 4 oz.-in. min. radial torque
  • Durability: 500 cycles min.
Electrical Specifications
  • Impedance: 50 OHMS
  • Frequency Range: 0-26.5 GHz
  • Working Voltage: 335 VRMS max. at sea level, 85 @70K feet
  • Dielectric Withstanding Voltage: 1000 VRMS min. at sea level
  • Insulation Resistance: 5000 megohms min.
  • Contact Resistance: 3.0 milliohms max. initial; 4.0 milliohms max after environmental
  • RF High Potential Withstanding Voltage: 670 VRMS min. at 4 and 7 MHz
Environmental Specifications
Meets or exceeds the applicable paragraph of MIL-PRF-39012
  • Thermal Shock: MIL-STD-202, Method 107, Condition B
  • Operating Temperature: -65ºC TO 165ºC
  • Corrosion: MIL-STD-202, Method 101, Condition B
  • Shock: MIL-STD-202, Method 213, Condition I
  • Vibration: MIL-STD-202, Method 204, Condition D
  • Moisture Resistance: MIL-STD-202, Method 106
Part Number PCB Board Thickness Freq (max.) Contact Style Datasheet
142-0791-801 .062" 18 GHz Round   Datasheet
142-0791-811 .042" 18 GHz Tab   Datasheet
142-0791-821 .062" 18 GHz Tab   Datasheet
142-1701-821 .062" 26.5 GHz Round   Datasheet
142-1701-831 .059" 26.5 GHz Round   Datasheet

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