SGMC Microwave

4343 Fortune Place, Suite A
W. Melbourne, Florida  32904

(321) 409-0509  ~  Fax (321) 409-0510

 

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ASSMA SERIES DESIGN FEATURES & SPECIFICATIONS

With the electronic industry's increased demand for bandwidth and higher frequencies, combined with the need for smaller packaging and reduced cost, SGMC Microwave introduces the ASSMA series. The ASSMA Series is a rugged, sub-miniature connector that operates from DC to 50 GHz and is mechanically compatible with SSMA connectors. ASSMA connectors area available for both semi-rigid and flexible coaxial cable, panel mount and spark plug launchers, and in-series and between-series adapters.

DESIGN FEATURES:  The ASSMA Series are precision sub-miniature connectors designed for broadband microwave applications. ASSMA connectors provide excellent performance up to 50 GHz and have electrical and mechanical compatibility with standard #10-36 UNS thread connectors such as the SSMA. ASSMA Series connectors are rugged, sub-miniature in size, and offer the following features: 

  • Frequency Range - DC-50 GHz
  • Mechanically Compatible with SSMA & ASSMA Connector Series
  • Ruggedized Construction for Repeatability and Reliability
  • Air Dielectric
  • Captivated Center Contact

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1.85mm Specifications
ELECTRICAL: MECHANICAL:
Frequency: DC-50 GHz Coupling Nut  Not applicable for jack connectors
Nominal Impedance: 50 Ohms Retention Torque: For plug connectors, the axial force is 60 pounds minimum
Temperature Rating: -55°C to +85°C Recommended Mating Torque: 8-10 inch-pounds
VSWR: DC-18.0 GHz 1.10 Max Coupling Proof Torque: 15 inch-pounds
VSWR: 18.0 - 26.5 GHz 1.12 Max Force to Engage: 2 inch-pounds
VSWR: 26.5 - 50.0 GHz 1.25 Max Contact Torque: 4.0 inch-ounces minimum
Dielectric Withstanding Voltage @ Sea Level 500 Volts RMS Durability 500 Cycles minimum
RF Leakage -(90-f(GHz)) dB Fully Mated
ENVIRONMENTAL: MATERIAL:
Corrosion:  (Salt Spray) Method 101, Condition B,  Body & Coupling Nut: Corrosion resistant steel 
MIL-STD-202 (5% Salt Solution) Type 303 (STAINLESS) 
Non-Magnetic, 
per ASTM-A-484 & AST-A-582
Vibration: Method 204,  Condition D, Center Contact: Beryllium Copper, per ASTM-B-196
 20G's, MIL-STD-202
Shock: Method 213, Condition I,  Dielectric: Oxide-Noryl ™
100G's, MIL-STD-202  per MIL-P-46129
Temperature Cycling: Method 107, Condition B,   Gasket: Silicon R, per ZZ-R-765, 
MIL-STD-202 Class IIB, Grade 65-67
Moisture Resistance: Method 106, MIL-STD-202
FINISH:
Body & Coupling Nut: Passivated per ASTM-A-967, 
QQ-P-35, Type II
Center Contact: Gold Plated per MIL-G-45204 
Type II, Grade C, Class 1                over Nickel plate per QQ-N-290
 

1.85mm Interface Mating Dimensions 
FEMALE / JACK MALE / PLUG
LTR MAX   INCHES   MIN mm LTR MAX   INCHES   MIN mm
A .1268 .1250 3.2 F .154 .150 3.9
B .0950 .0940 2.4 G .1282 .1272 3.25
C .0205 .0195 0.5 H .0950 .0940 2.4
D .060 .050 1.4 I .0415 .0405 1.0
E .095 .092 2.4 J .1077 .075 1.9