Information

47
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, 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 641204 plus
prefix-and-suffix
4- — -0
The correct ordering number is
4-641204-0
The part numbers in bold face
are the RoHS equivalent ver-
sion. Example:
No. of
Lead Free
Pos.
RoHS
Prefix/Suffix
2 3-641204–2
thru
24 5-641204-4
See page 15 for an explanation of
RoHS lead free equivalents.
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.
.125
[3.18]
A
A
.045
[1.14]
Sq.
.156
[3.96]
Typ.
.078
[1.98]
Typ.
.250
[6.35]
.156
[3.96]
.080/.070
[2.03/1.78]
Solder tail
Length
(See Chart)
.390
[9.91]
Edge of Board
X
Post No. 1
.125
[3.18]
.100
[2.54]
Recommended Mounting Hole Pattern for
.062 [1.57] Thk. PC Board
Recommended Mounting Hole Pattern for .063 [1.60]
Thk. PC Board for Retentive Leg Header
Y = .140 [3.56] Min., .430 [10.92] Max. when mated with
MTA Connector.
Retentive Leg
X = .140 [3.56] Min., .430 [10.92] Max.
when mated with MTA Connector.
X = .140 [3.56] Min. when mated with
SL-156 Wire-to-Board Connector.
Note: Consult Product Drawing
for details on placing headers
onto PC boards.
Note:
Select load headers (omitted pin
headers) are available upon request.
Please contact product engineer or
product manager for details.
Base Part Numbers
Square Posts
Retentive Leg .125 [3.18] Solder tail .175 [4.45] Solder tail
Header RoHS Header RoHS Header RoHS
Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv.
Standard UL94V-0, Tin Plated
647646 2–12 640385 2–24 644751 2–24
Standard UL94V-0, .000030 [0.00076] Gold Plated
—— 641204 32–54 644758 32–54
Standard UL94V-0, .000015 [0.00038] Gold Plated
—— 641115 32–54 644765 32–54
.390
± .015
[9.91
± 0.38
]
.125
[3.18]
16°
Edge of Board
.156
[3.96]
Y
Typ.
Ø .063
± .002
[1.60
± 0.05
]
Typ.
MTA-156 Flat Headers—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