Information

48
MTA-156
.156 [3.96]
Material and Finish
Housing — UL94V-0 rated, polyester,
white
Posts — Copper alloy, tin plated,
.000030 [0.00076] or .000015
[0.00038] gold over nickel
Notes:
1. Post(s) can be omitted for keying
purposes. Specify the desired
post(s) to be omitted using the
figure to identify Post No. 1.
2. Gold headers are duplex plated,
gold on mating end of post and
tin on the solder tail.
3. .125 [3.18] solder tail lengths are
for .062 [1.57] thick printed circuit
boards and .175 [4.45] solder tail
lengths are for .093-.125 [2.36-
3.18] thick printed circuit boards.
4. To determine header overall
length (Dim. A), multiply .156 x
the number of posts. Example:
.156 x 10 posts equals 1.560
inches [39.62 mm].
For mateability options, see
matrix on pages 34, 35, 54
and 58.
For mating half visuals, use
connectors with a locking ramp
for polarization/retention pur-
poses, see pages 36 thru 39,
55, 60 and 62.
For polarizing purposes only
use connectors without a lock-
ing ramp. See pages 36 thru
39, 55, 60 and 62.
Header Ordering
Information
The “Base Part Numbers”
Chart at right shows the base
part number and number of
posts available for the
described headers.
Prefixes and suffixes are deter-
mined by the number of post
positions in the header. For
example, the complete part
number for a 10-position header
with square posts and a .125
[3.18] solder tail length would be:
Base number 641208 plus
prefix-and-suffix
4- — -0
The correct ordering number is
4-641208-0
The part numbers in bold
face are the RoHS equivalent
version. Example:
No. of Standard
Lead Free
Pos. Prefix/Suffix
RoHS
Prefix/Suffix
2 641208–2 3-641208–2
thru
24 2-641208-4 5-641208-4
See page 15 for an explanation of
RoHS lead free equivalents.
.156
[3.96]
.125
[3.18]
.450
[11.43]
Solder tail
Length
(See Chart)
.300
[7.62]
A
.156
[3.96]
.045
[1.14]
.180
[4.57]
.078
[1.98]
Post No. 1
.175
[4.45]
Min.
Edge of Board
Y
.425
[10.8]
Ref.
Typ.
Typ.
Recommended Mounting Hole Pattern for
.062 [1.57] Thk. PC Board
Y = .068 [1.73] Max. 2-8
position tin plated and
2–24 position gold
plated headers.
Y = .073 [1.85] 9-24 position
tin plated headers.
PC Board Hole Diameters
Square Round
Post Post
.080/.070 .070/.060
[2.03/1.78] [1.78/1.52]
Note: Consult Product Drawing for details
on placing headers onto PC boards.
Note: All RoHS equivalent part numbers may not be available upon catalog release. If the number you need is not
available, please contact Product Engineering to expedite your request.
Note:
Select load headers (omitted pin headers) and tube loaded product are available upon request. Please contact product
engineer or product manager for details.
Base Part Numbers
Square Posts Round Posts
Retentive .125 [3.18] .175 [4.45] .125 [3.18] .175 [4.45]
Leg Solder tail Solder tail Solder tail Solder tail
Header RoHS Header RoHS Header RoHS Header RoHS Header RoHS
Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv.
Standard UL94V-0, Tin Plated
1744017 2-12 640445 2–24 644752 2–24 640388 2–24 644753 2–24
Standard UL94V-0, .000030 [0.00076] Gold Plated
——641208 32–54 644759 32–54 641209 32–54 644760 32–54
Standard UL94V-0, .000015 [0.00038] Gold Plated
——641119 32–54 644766 32–54 641120 32–54 644767 32–54
.068
[1.7]
.400
[10.16]
16°
± 3°
Retentive Leg
MTA-156 Friction Lock Headers—Straight
MTA, CST-100 II, SL-156 and
AMP Economy Power (EP) Connectors
Catalog 82056 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-2103-6000
Revised 6-08 millimeters unless otherwise reference purposes only. Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. Values in brackets Specifications subject Mexico: 52-55-1106-0800 Japan: 81-44-844-8013
www.tycoelectronics.com are metric equivalents. to change. C. America: 57-1-254-4444 UK: 44-208-420-8341