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Mini 75 Ω SMB RF Connector
RF Connectors > Mini 75 Ohm RF Connectors
Description
Amphenol’s Mini 75 Ω SMB connector family. Mini 75 Ω SMB provides broadband capability through 2 GHz. Its snap-on design utilizes die cast components on non-critical areas to provide a low cost solution.
The Mini 75 Ω SMB offers snapfit mating for quick connect/disconnect. The reduced housing allows circuit miniaturization and efficient"real estate" utilization. Built in accordance with requirements of Mil-C-39012, the interface is in compliance with Mil-STD 348 and is interchangeable with Industry Standard for Miniature 75 Ω SMB.
Features & Benefits
- 75 Ω snap-on coupling allows for quick installation
- Same interface as 50 Ω SMB
- Product interchangeable with competitors
- Diecast components which offers low cost solution
Applications
- Telecommunication
- Switching
- Equipment Networking
| Mini 74 ohm SMB Specifications | |
| Impedance | 75 Ω |
|---|---|
| Frequency Range | 0-2 GHz with low reflection |
| Voltage rating for RG-188/U cables | Sea level: 335 volts 70,000 ft: 85 volts |
| Dielectric Withstanding voltage | 750 VRMS for RG-179 type |
| VSWR RG-179/U Series cables | Straight connectors 1.33 max. Rt. angle connectors 1.43 max. |
| Contact Resistance Center contact Outer contact |
Initial 6.0 mΩ After environmental, 8.0 After environmental, 1.5 initial, 1.0 mΩ |
| Braid to body | After environmental N/A |
| Insulation Resistance | 1000 MΩ minimum |
| RF leakage | -55 dB minimum @ 2GHz |
| Insertion Loss | Straight connectors 0.30 dB @ 1.5 GHz Rt. angle connectors 0.60 dB @ 1.5 GHz |
| Mating | Mini 75 ohm snap on coupling |
| Engagement forces | Initial 14 lbs. max. engagement. After 500 mating, 14 lbs. max engagement and disengagement. 2 lbs. min. disengagement. |
| Connector affixment to cable | Braid and jacket; hex crimp. |
| Cable affixment to center contact | Solder |
| Cable retention | Equal to breaking strength of cable employed |
| Connector durability | 500 mating and unmating cycles min. |
| Bodies | Brass per QQB-626 or zinc per ASTM B86-71 as specified, nickel (or gold) plated as listed |
| Center Contact | Male: Brass, nickel plate |
| Insulators | TFE |
| Crimp ferrules | Annealed copper alloy |
| Temperature range | -65° C to +165° C |
| Thermal Shock | MIL-STD 202, Method 107 (test cond. B) except high temperature test @ +200°C |
| Vibration | MIL-STD 202, Method 204, snap-on (test cond. B)(15 G’s) |
| Shock | MIL-STD 202, Method 213, snap-on (test cond. B) 75 G’s @ 6 milliseconds 1/2 sine |
| Corrosion | MIL-STD 202, Method 101, (test cond. B 5% salt solution. |
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