Product Overview

BMA Series Connector

The Aptiv Interconnect BMA Series RF connector is a high-performance, slide-on/blind-mate coaxial connector designed for rack-and-panel applications up to 18 GHz. This connector allows for quick and reliable connections without the need for threading or visual alignment. Its unique spring-loaded outer conductor compensates for axial and radial misalignment, ensuring consistent contact and performance in modular systems, test fixtures, and high-density packaging. The BMA series is ideal for telecommunications, military, aerospace, and test & measurement applications

BMA Series Connector product image

Features and Benefits

  • Blind-Mate Design: Enables quick, easy connections without visual alignment.
  • High Performance: Operates reliably up to 18 GHz.
  • Misalignment Compensation: Accommodates significant axial and radial misalignment.
  • High Density Capability: Ideal for modular, high-density systems.
  • Durable Construction: Made from robust materials for long-term reliability.
  • Low Insertion Force: Reduces stress on PCBs and components.
  • 50 Ohm Impedance: Standardized for broad system compatibility.
  • Broad Application Scope: Used in cellular base stations, radar, and test equipment.

Specifications, Parts, and Filters

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Impedance
50 Ohms
Frequency Range
DC to 18 GHz
Voltage Rating
Typically 335 VRMS (max. typical)
Dielectric Withstanding Voltage
1000 VRMS (min. typical)
Contact Resistance
Center Contact
≤ 3.0 mΩ (typical)
Outer Contact
≤ 2.0 mΩ (typical)
VSWR (Voltage Standing Wave Ratio - Straight Connectors)
Typical
≤ 1.30 @ 18 GHz
Insertion Loss
≤ 0.15 dB x f(GHz)​ (typical)

Coupling Mechanism
Slide-on / Blind-mate
Mating Cycles
≥ 500 cycles
Axial Mating Tolerance
Typically ± 0.030 inches (± .75 mm)
Radial Mating Tolerance
Typically ± 0.010 inches (± 0.25 mm)
Mating Force
Typically 1-5 lbs (0.45-2.25 kg) per connector
Unmating Force
Typically 1-5 lbs (0.45-2.25 kg) per connector
Body Material
Stainless Steel or Brass
Center Contact Material
Beryllium Copper or Phosphor Bronze
Insulator Material
PTFE (Polytetrafluoroethylene)
Interface Dimensions
Conforms to MIL-STD-348, Interface 320 for BMA.

Temperature Range
-65°C to +165°C
Thermal Shock
MIL-STD-202, Method 107, Test Condition B
Vibration
MIL-STD-202, Method 204, Test Condition D
Shock
MIL-STD-202, Method 213, Test Condition I
Moisture Resistance
MIL-STD-202, Method 106
Corrosion (Salt Fog)
MIL-STD-202, Method 101, Test Condition B

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