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
|
| 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. |
