53
MTA-156
.156 [3.96]
Material and Finish
Housing — UL94V-0 rated, polyester,
black
Posts — Copper alloy, tin plated; or
.000030 [0.00076] or .000015
[0.00038] gold over nickel
Notes:
1. Post(s) can be omitted for keying pur-
poses. 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. Peg holes are not required in PC boards
when headers without pegs are used.
4. One peg only on a 2 position header,
other position sizes have two pegs.
5. Right-angle front and rear bend headers
with retention pegs can be made avail-
able upon request. Minimums may apply.
For mateability options, see
matrix on pages 34, 35, 54
and 58.
For mating half visuals, see
pages 36 thru 39 and 55.
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 straight, square
posts and with pegs would be:
Base number 647127 plus
prefix-and-suffix
4- — -0
The correct ordering number is
4-647127-0
No. of Dim.
RoHS
Pos. A
Prefix/
Suffix
2
.406
2--2
10.31
3
.562
2--3
14.27
4
.718
2--4
18.24
5
.874
2--5
22.20
6
1.030
2--6
26.16
7
1.186
2--7
30.12
8
1.342
2--8
34.09
9
1.498
2--9
38.05
10
1.654
3--0
42.01
11
1.810
3--1
45.97
12
1.966
3--2
49.94
Note: All RoHS equivalent part num-
bers may not be available upon cat-
alog release. If the number you
need is not available, please contact
Product Engineering to expedite
your request.
Straight Post (.045 [1.14] Square or Round) Right-Angle (.045 [1.14] Square)
Polarized
Retention Peg
.125
[3.18]
.045
[1.14]
Post
No. 1
.156
[3.96]
.550
[13.97]
.525
[13.34]
.300
[7.62]
.125
[3.18]
.100
[2.54]
.167
[4.24]
.210
[5.33]
.066/062
[1.68/1.58]
Dia.
.156
[3.96]
.078
[1.98]
.167
[4.24]
.245
[6.22]
Edge of Board
Min.
.066/062
[1.68/1.58]
Dia.
.156
[3.96]
.078
[1.98]
.239
[6.07]
.350/.700
[8.89/17.78]
.069/.065
[1.75/1.65]
Edge of Board
Dia.
Recommended Mounting Hole Pattern for .062 [1.57] Thick
PC Board Using a Straight Post Header
Recommended Mounting Hole Pattern for .062 [1.57] Thick
PC Board Using a Right-Angle Header
Front Bend
Rear Bend
Post
No. 1
.156
[3.96]
Typ.
.045
[1.14]
.525
[13.34]
Ref.
.300
[7.62]
Ref.
.455
[11.56]
.210
[5.33]
.205
[5.21]
.125
[3.18]
Post
No. 1
.156
[3.96]
Typ.
.045
[1.14]
.525
[13.34]
Ref.
.300
[7.62]
Ref.
.455
[11.56]
.210
[5.33]
.205
[5.21 ]
± .002
± 0.05
.125
[3.18 ]
± .010
± 0.25
PC Board Hole Diameters
Square Post Round Post
.069/.065 .054/.050
[1.75/1.65] [1.37/1.27]
Base Part Numbers
Straight Square Posts Straight Round Posts
Without Pegs With Pegs Without Pegs With Pegs
Header RoHS Header RoHS Header RoHS Header RoHS
Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv.
Standard UL94V-0, Tin Plated
647123 22–32 647127 22–32 647124 22–32 647128 22–32
Standard UL94V-0, .000030 [0.00076] Gold Plated
647131 22–32 647135 22–32 647132 22–32 647136 22–32
Standard UL94V-0, .000015 [0.00038] Gold Plated
647139 22–32 647143 22–32 647140 22–32 647144 22–32
Square Posts
Right-Angle Posts, Front Bend Right-Angle Posts, Rear Bend
Without Pegs Without Pegs
Header RoHS Header RoHS
Part Nos. Equiv. Part Nos. Equiv.
Standard UL94V-0, Tin Plated
647125 22–32 647126 22–32
Standard UL94V-0, .000030 [0.00076] Gold Plated
647133 22–32 647134 22–32
Standard UL94V-0, .000015 [0.00038] Gold Plated
647141 22–32 647142 22–32
Note: Select load headers (omitted pin headers) are available upon request. Please contact product engineer or prod-
uct manager for details.
Note: Consult Product Drawing for details
on placing headers onto PC boards.
MTA-156 Shrouded Headers—Straight and Right-Angle
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
