1200 Series
Coax Combo D-Sub - Vertical PCB Type

Material:
Shell: Steel w/ Tin Plated (optional Zinc plating)
Signal Contacts: Berylium Copper
Coaxial Contacts: Brass
Signal Contact Plating: 5u" Gold
Coaxial Contact Plating: 15u" Gold
Contact Underplating: 100u" min. Nickel
Insulation: PBT & 30% glass fiber reinforced thermo plastic
                : UL94V-O
UL File# E107536, material D202G30

Electrical:
Signal Contact Rating: 7.5 Amp
Coax Impedance: 50 ohm or 75 ohm
Coax VSWR: Less than 1.3 - 1.0 up to 500 MHZ
Coax Insertion Loss: 0.1 dB loss at 55 MHZ
Dielectric Withstanding: 1500V at sea level
Operation Temperature: -55oC to +105oC


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Mechanical Specification and Mounting Option:


Option Mea.
" e "
Part Number
(Suffix)
3.0 dia Hole - (Standard)
Fixed Jack Screw - -2NA
Clinch Nut - -2N
Standoff 6.0 -2NB
6.4 -3NB
7.62 -7NB
Standoff Boardlock 6.0 -2ND
6.4 -3ND
7.62 -7ND
Standoff Boardlock
with Jackscrews
6.0 -2NJ
6.4 -3NJ
7.62 -7NJ

Ordering Part Numbers

Effective Apr. 15, 2001 part numbers for this series have changed. The part numbers below are the current P/N.

Click Here to see a cross reference of the new P/N to the old P/N. For assistance E-Mail us at sales@hochien-connectors.com

Shell
Size
Contact Arrangements
(Front view of Plug/ Rear view of Recept)
Plug \
Recept
Part Number Dimensions mm
50 ohm 75 ohm A B C D
E
2W2
Plug 1250-22T 1270-22T 30.81 16.92 24.88 8.36
Recept 1251-22T 1271-22T 16.33 7.87

5W1
Plug 1250-51T 1270-51T 16.92 8.36
Recept 1251-51T 1271-51T 16.33 7.87
A
3W3
Plug 1250-33T 1270-33T 39.14 25.25 33.32 8.36
Recept 1251-33T 1271-33T 24.66 7.87
spec-coax-3V3.gif
3V3
Plug
1250-23T
1270-23T
25.25
8.36
Recept
1251-23T
1271-23T
24.66
7.87

7W2
Plug 1250-72T 1270-72T 25.25 8.36
Recept 1251-72T 1271-72T 24.66 7.87

11W1
Plug 1250-11T 1270-11T 25.25 8.36
Recept 1251-11T 1271-11T 24.66 7.87
B
5W5
Plug 1250-55T 1270-55T 53.04 38.96 47.04 8.36
Recept 1251-55T 1271-55T 38.38 7.87

13W3
Plug 1250-13T 1270-13T 38.96 8.36
Recept 1251-13T 1271-13T 38.38 7.87

17W2
Plug 1250-12T 1270-12T 38.96 8.36
Recept 1251-12T 1271-12T 38.38 7.87

21W1
Plug 1250-21T 1270-21T 38.96 8.36
Recept 1251-21T 1271-21T 38.38 7.87
C
8W8
Plug 1250-88T 1270-88T 69.32 55.42 63.50 8.36
Recept 1251-88T 1271-88T 54.84 7.87

21W4
Plug 1250-24T 1270-24T 55.42 8.36
Recept 1251-24T 1271-24T 54.84 7.87
D
36W4
Plug 1250-34T 1270-34T 66.93 52.81 61.11 11.07
Recept 1251-34T 1271-34T 52.43 10.74
* Part Numbers includes Housing, and Preloaded Signal Contacts and Coaxial Contacts (Preloaded).
* Housing with Preloaded Signal Contacts and Coaxial Contacts may be ordered seperately. Contact Ho Chien to Order.
* To order Coaxial Contacts only sperately, see table below for Part Numbers.
* Economic stamp pin type on signal contacts available.
* Zinc shell, Insulation color and gold on contact options are available. Contact Ho Chien for more info.
Coaxial Contacts - Vertical PCB Type

Part Number
( For Ordering Individual Contacts )
ohm Plug Coax Recept Coax
50 1250-00 1251-10
75 1270-00 1271-10


No. Description Material Coments
1 Center
Contact
Brass 0.000015" Gold over
0.000050" min. Nickel
2 Outside
Contact
Brass 0.000015" Gold over
0.000050" min. Nickel
3 Insulator Teflon UL94V-O; White
4 Lock Link Copper Alloy Nickel Plated
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