RF Coax Connectors
QMA Connectors
Snap-On SMA Series of
RF Connectors
Product Facts
■
Positive snap-on interface
facilitates assembly
■
Intermateable with
competitor product
■
Excellent RF performance to
6 GHz
■
Ideal for Communications
and Industrial Applications
Material and Finish
Shells and Bodies — Brass, nickel
plated
Collars — Phosphor bronze, white
bronze plated
Outer Contacts — Beryllium copper,
nickel plated
Center Contacts — Beryllium copper,
gold plated
Dielectrics — PTFE
Electrical Characteristics
Tyco Electronics’ next generation high performance
RF products QMA (Snap-On
SMA) connectors series
offers the same high quality
and performance currently
found in the standard
Tyco Electronics SMA series
but does not require the
coupling nut torque.
By integrating a snap-on
feature to the design,
denser packaging can be
achieved, and the overall
applied cost is dramatically
reduced. The QMA connector series is excellent for
communications as well as
industrial applications. The
QMA offering is designed
for 100 mating cycles, operates through 6 GHz, and is
completely intermateable
with competitive QMA offerings. This new QMA product is not intermateable with
standard SMA interfaces.
QMA connectors are available in a broad range of
standard configurations,
including PCB and panel
mount, flexible and semirigid cable, and adapters.
Other options can be
reviewed as well, including
additional cable sizes, PCB
surface mounting, and tape
and reel packaging.
The QMA connector series
is a cost effective solution
for the challenging demands
of today’s commercial marketplace, with applications
including cellular base station, handsets, and test and
measurement. Call your
local sales office or authorized distributor for additional
information or samples of
the QMA connector series.
Tyco Electronics is a leading supplier of RF and
Microwave connectors and
cable assemblies, and provides advanced technology
products from well known
and industry leading
brands, including AMP and
M/A-COM.
Frequency — dc – 6 GHz
Nominal Impedance — 50 ohms
Voltage Rating — 335 Volts (VRMS
max.) @ Sea Level
VSWR — 1.15 : 1 max. @ 6 GHz
Insulation Resistance —
5,000 megohms min.
Insertion Loss — .25 dB Max @ 6 GHz
Dielectric Withstanding Voltage —
1000 Volts (VRMS max.) @ Sea Level
Contact Resistance —
Center Contact — 5 milliohms max.
Outer Contact — 4 milliohms max.
Mechanical Characteristics
Connector Durability —
100 mating cycles
Force to Engage — 27 Newtons
Force to Disengage — 20 Newtons
Retention Force (mated pair) —
60 Newtons min.
Cable Retention — Dependent upon
cable type
Environmental Characteristics
Temperature Rating —
-40 to +125°C
Vibration — EIA-364-28,
Test Condition VII, Condition D
Shock — EIA-364-27, Method H
Moisture Resistance — EIA-364-31,
Method III
Thermal Shock — EIA-364-32
Note: Performance specifications
are typical, but may not apply to all
connector types.
Related Product Data
QMA
Snap-On
Interface
SMA
Threaded
Interface
Product Specifiation — 108-2087
Sample Kit — 1654882
Board
124
Catalog 1307191
Revised 3-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
RF Coax Connectors
QMA Connectors (Continued)
Semi-Rigid Cable —
Direct Solder Attachment
Straight Cable Plug
20.50
Ref.
[0.81]
Cable
RG 402
Part Number
1408346-1
Cable
RG 402
Part Number
1408347-1
Cable
RG 402
Part Number
1408348-1
Cable
RG 402
Part Number
1408349-1
Ø 10.50
[0.41]
Right-Angle Cable Plug
15.10
Ref.
[0.60]
18.70
Ref.
[0.74]
8.71
[0.34]
Ø 10.50
[0.41]
10.24
[0.40]
14.60
Ref.
[0.57]
23.05
[0.91]
Straight Cable Jack
18.05
[0.71]
Ø 8.00
[0.31]
Ø 5.60
[0.22]
16.05
[0.63]
3.20
Max. Panel
[0.13]
Bulkhead Cable Jack
7.00
[0.28]
2.00
[0.08]
Ø 7.20
Min.
[0.28]
Ø 5.60
[0.22]
6.46
Across Flat
[0.25]
9.50
Hex.
[0.38]
9.50
Hex.
[0.38]
6.50
[0.26]
Min.
Recommended Mounting Hole
Note: Part Numbers are RoHS compliant except: Indicates non-RoHS compliant.
125
Catalog 1307191
Revised 3-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
RF Coax Connectors
QMA Connectors (Continued)
Flexible Cable — Crimp
Attachment
A Ref.
Cable
RG 174,
188, 316
Straight Cable Plug
Dim. A
22.90
0.90
22.90
0.90
25.20
0.99
25.20
0.99
RD 316
RG 400
Ø 10.50
[0.41]
RG 58
18.70
Ref.
[0.74]
15.10
Ref.
[0.60]
9.10
Ref.
[0.36]
Plane
Right-Angle Cable Plug
Cable
RG 174,
188, 316
RD 316
RG 400
RG 58
Dim. A
17.20
0.68
17.20
0.68
19.50
0.77
19.50
0.77
Dim. B
13.10
0.52
13.10
0.52
15.40
0.61
15.40
0.61
Part Number
Part Number
1408333-1
1408333-3
1408333-5
1408333-7
8.71
[0.33]
Ø 10.50
[0.41]
A Ref.
1408336-1
B
1408336-3
1408336-5
1408336-7
Straight Cable Jack
A Ref.
18.05
[0.71]
Cable
RG 174,
188, 316
Dim. A
25.90
1.02
25.90
1.02
28.20
1.11
28.20
1.11
RD 316
RG 400
RG 58
Bulkhead Cable Jack
Part Number
1408338-1
1408338-3
Ø 8.00
[0.31]
Ø 5.60
[0.22]
1408338-5
1408338-7
16.05
[0.63]
3.20
Max. Panel
[0.13]
Cable
RG 174,
188, 316
A Ref.
2.00
[0.08]
RD 316
RG 400
Ø 5.60
[0.22]
RG 58
6.46
Across Flat
[0.25]
9.50
Hex.
[0.38]
Dim. A
9.90
0.39
9.90
0.39
12.20
0.48
12.20
0.48
Part Number
1408339-1
1408339-3
1408339-5
1408339-7
9.50
Hex.
[0.38]
6.50
Min.
[0.26]
Ø 7.20
[0.28]
Note: Part Numbers are RoHS
compliant except: Indicates
non-RoHS compliant.
Recommended Mounting Hole
126
Catalog 1307191
Revised 3-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
RF Coax Connectors
QMA Connectors (Continued)
Printed Circuit Board
15.10
[0.60]
Straight Jack Receptacle
6.35
[0.25]
Sq.
5.08
[0.20]
Typ.
11.00
[0.43]
Ø 1.27
[0.05]
Ø 5.60
[0.22]
Part Number
1408332-1
1.02
Sq. Typ.
[0.04]
15.60
[0.61]
Recommended Mounting Hole
6.35
[0.25]
Sq.
5.08
[0.20]
Typ.
13.60
[0.54]
9.50
[0.37]
Right-Angle Jack Receptacle
Part Number
1408337-1
5.08
[0.20]
Typ.
Ø 1.70
Typ.
[0.07]
5.08
[0.20]
Typ.
Ø 1.70
5 Plcs.
[0.07]
1.02
Sq. Typ.
[0.04]
12.40
[0.49]
Recommended Mounting Hole
5.60
[0.22]
Dia.
9.95
[.392]
Straight Terminal
Press-In Jack
5.00
[.197]
0.75 ± 0.05
[.030 ± .002]
4.50
[.177]
2.00
[.079]
1.20
[.047]
4.00
[.157]
Body Material
& Finish
Brass, Gold
Contact
Captivation
Mechanical
RF Leakage
db min.
N/A
Ø 6.83 ± 0.03
[.269 ± .001]
Temperature
Range
–65 to 125° C
Part
No.
619215-1
Note: Part Numbers are RoHS compliant except: Indicates non-RoHS compliant.
127
Catalog 1307191
Revised 3-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
RF Coax Connectors
QMA Connectors (Continued)
Straight Terminal
4-Hole Flange Mount
Jack Receptacle
12.70
Sq.
[0.50]
8.64
Typ.
[0.34]
17.90
[0.70]
13.55
[0.53]
15.00
[0.60]
1.53
[0.06]
Ø 5.60
[0.22]
Ø 1.27
[0.05]
Ø 4.06
[0.16]
Part Number
1408341-1
Ø 2.60
[0.10]
4 Plcs.
20.00
[0.79]
Screw-In Front Mount
Jack Receptacle
10.70
[0.42]
1.50
[0.59]
4.10
[0.16]
1.90
[0.07]
Part Number
1408340-1
Ø 1.27
[0.05]
Ø 5.60
[0.22]
Ø 4.06
[0.16]
8.00
Hex.
[0.31]
Adapters — In Series
.250 - 36 UNS-24
27.70
Ref.
[1.09]
QMA Plug to QMA Jack
Part Number
1408342-1
QMA Jack
QMA Plug
Adapters — Between Series
30.60
Ref.
[1.20]
QMA Plug to SMA Plug
Part Number
1408393-1
SMA Plug
QMA Plug
7.90
Hex.
[0.31]
8.70
Hex.
[0.34]
21.50
Ref.
[0.85]
QMA Jack to SMA Plug
Part Number
1408343-1
SMA Plug
QMA Jack
Note: Part Numbers are RoHS
compliant except: Indicates
non-RoHS compliant.
6.35
Hex.
[0.25]
7.90
Hex.
[0.31]
128
Catalog 1307191
Revised 3-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 44-8706-080-208
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