This product line offers Mini-75 Ohm SMB connectors, designed for 75-ohm impedance applications. These connectors are intermateable with standard 50 Ohm SMB series and are suitable for use with various coaxial cable types including RG-179, RG-59, and Belden 735A. They are available in straight and right-angle configurations for cabled applications, as well as uncabled receptacles, adapters, loads, and matching pads. The connectors are built for durability, meeting MIL-C-39012 specifications, and are designed for reliable performance across a wide temperature range.
| Specification | Details |
|---|---|
| Impedance | 75 ohms |
| Frequency Range | 0-2 GHz |
| VSWR (f = GHz) |
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| Working Voltage (Vrms maximum) |
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| Dielectric Withstanding Voltage (VRMS minimum at sea level) |
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| Corona Level (Volts minimum at 70,000 feet) |
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| Electrical Length |
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| Insertion Loss (dB maximum, tested at 1.5 GHz) |
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| Insulation Resistance | 1000 megohms minimum |
| Contact Resistance (milliohms maximum) |
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| RF Leakage (dB minimum tested at 2.5 GHz) |
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| RF High Potential Withstanding Voltage (Vrms minimum, tested at 4 and 7 MHz) |
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| Power Rating (Loads and matching pad only) | 1.0 watt at +25C derated linearly to .5 watt at +125C |
| Engagement/Disengagement Force | 2 pounds minimum to 14 pounds maximum axial force |
| Contact Retention | 4 lbs. minimum axial force (captivated contacts) / 1 inch-ounce minimum torque (uncabled receptacles) |
| Cable Retention |
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| Durability | 500 cycles minimum |
| Temperature Range |
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| Material - Bodies | Brass per QQ-B-626, gold plated** or nickel plated per QQ-N-290 |
| Material - N Type Adapters Bodies | Stainless steel per QQ-S-763, passivated per MIL-F-14072 |
| Material - Contacts | Beryllium copper per QQ-C-530, gold plated per MIL-G-45204 .00003" min. |
| Material - Insulators | PTFE fluorocarbon per ASTM D 1710 and ASTM D 1457 |
| Material - Expansion Caps | Brass per QQ-B-613, gold plated** or nickel plated per QQ-N-290 |
| Material - Crimp Sleeves | Copper per WW-T-799, gold plated or nickel plated per QQ-N-290 |
| Material - Mounting Hardware | Brass (nuts) per QQ-B-626 or phosphor bronze (lockwashers) QQ-B-750, gold plated** or nickel plated per QQ-N-290 |
| Cable Types Supported | RG-179, RG-187, RG-316, RG-161, RG-174, RG-188, RG-59, Belden 735A |
| Crimp Hex Size | .128" (3.25 mm) for RG-179/u, 187, 316, 161, 174, 188 |
| Model Numbers (Example) | 131-8403-011 (Gold Plated), 131-8403-016 (Nickel Plated) |
All gold plated parts include a .00005" min. nickel underplate barrier layer.
Note: Customer drawings available upon request.
