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SMB connectors are
semi-precision, subminiature devices that provide
repeatable electrical performance DC to 4 GHz. The
SMB family of connectors provides a means of a quick-connect
and disconnect through a snap-on type coupling and
utilizes die cast components on non-critical areas
to provide a low-cost solution. It's available in
50 Ω and 75 Ω impedance.,
The smaller physical size and snap-on Coupling make
the SMB an ideal general purpose connector where
packaging density, ease of mating/unmating and economy
are prerequisites, crimp, clamp and receptacle types
are available in right angle, printed circuit board
and straight body styles.
Typical application for SMB connectors are telecommunications,
test equipment, instrumentation and GPS. |
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| • Interface
Dimensions: |
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PLUG
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Letter |
Millimeters(Inches) |
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Minimum |
Maximum |
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A |
— |
2.06(.081) |
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B |
3.58(.141) |
— |
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C |
3.58(.141) |
— |
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D |
0.18(.007) |
— |
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E |
0.18(.007) |
0.94(.037) |
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F |
2.97(.117) |
— |
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G |
— |
1.63(.064) |
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JACK
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Letter |
Millimeters(Inches) |
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Minimum |
Maximum |
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A |
— |
0.25(.010) |
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B |
0.48(.019) |
0.53(.021) |
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C |
2.08(.082) |
— |
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D |
— |
3.71(.146) |
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E |
0.00(.000) |
— |
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F |
3.33(.131) |
3.58(.141) |
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G |
— |
0.18(.007) |
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H |
— |
0.18(.007) |
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I |
— |
2.97(.117) |
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J |
0.69(.027) |
0.94(.037) |
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K |
1.65(.065) |
— |
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| Electrical: |
| Impedance |
50 ohm |
| Frequency Range |
0 to 4.0 GHz |
| VSWR |
| 178U→ |
1.3+0.04 f max (Straight)
1.45+0.06 f max (Right Angle) |
| 316U→ |
1.25+0.04 f max (Straight)
1.35+0.04 f max (Right Angle) |
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| Working Voltage |
250 volts rms max, at sea level |
| Dielectric Withstanding
Voltage |
750 volts rms max, at sea level |
| Contact Resistance |
center contact=6.0 Milliohms
max
outer contact=1.0 Milliohms max |
| Insertion Loss |
0.3 dB max @ 1.5GHz (Straight)
0.6 dB max @ 1.5GHz (Right Angle) |
| Insulation Resistance |
1,000 Megohms min |
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| Mechanical
& Environmental: |
| Mating |
Snap-on coupling |
| Durability |
500 matings |
| Cable Retention |
RG-174,188,316 →20 lbs min
RG-178,196→6 lbs min |
| Temperature Range |
-65°C to 165°C |
| Vibration |
MIL-STD-202 Method 204 Test Cond. D. |
| Salt Spray |
MIL-STD-202 Method 101 Test Cond. B. |
| Thermal shock |
MIL-STD-202 Method 107 Test Cond. B. |
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| Materials
/ Finish: |
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Material |
Plating |
| Connector Body |
Brass |
Nickel or gold |
| Center Contact |
Male:Brass
Female :Beryllium Copper |
30 µ " gold over 100 µ " nickel
30 µ " gold over 100 µ " nickel |
| Insulation |
Teflon |
None |
| Crimp Ferule |
Annealed Copper |
Same as Body |
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