Information

51
MTA-156 .156 [3.96]
Polarized
Retention Peg
Material and Finish
Housing — UL94V-0 rated, polyester,
white
Posts — Copper alloy, tin plated or
.000030 [0.00076] 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. Peg holes are not required in PC
Boards when headers without
pegs are used.
3. One peg only on a 2 position
header, other position sizes have
two pegs.
4. Headers with .00015 [0.00038]
gold plated post are available
upon request. Minimums may
apply.
5. 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
only connectors with a locking
ramp for polarization/retention
purposes, 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, 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 front bend and
with pegs would be:
Base number 644617 plus
prefix-and-suffix
4- — -0
The correct ordering number is
4-644617-0
The part numbers in bold
face are the RoHS equivalent
version. Example:
No. of
Lead Free
Pos.
RoHS
Prefix/Suffix
2 3-644617–2
thru
18 4-644617-8
See page 15 for an explanation of
RoHS lead free equivalents.
Recommended Mounting Hole Pattern
for .062 [1.57] Thk. PC Board
.125
[3.18]
.156
[3.96]
.076
[1.93]
Typ.
.045
[1.14]
.210
[5.33]
Typ.
Ref.
.450
[11.43]
.545
[13.84]
.156
[3.96]
Edge of Board
Dia.
.239
[6.07]
Reg. Hole
.066/.062
[1.68/1.57]
.078
[1.98]
.069/.065
[1.75/1.65]
90° Ref.
Typ.
Retention Tabs
4 Plc.
Post No. 1
A
.100
[2.54]
.425
[10.80]
Front Bend Rear Bend
.205
[5.21]
Typ.
.073
[1.85]
Typ.
.125
[3.18]
.200
[5.08]
Typ.
.125
[3.18]
x
Typ.
Sq.
Front Bend
X = .350 [8.89] Min., .825 [20.96]
Max., when mated with
MTA Connector.
X = .350 [8.89] Min. when mated
with SL-156 Connector.
Rear Bend
X = .500 [12.7] Min., .700 [17.78]
Max., when mated with
MTA Connector.
X = .500 [12.7] Min., when
mated with SL-156
Connector.
Note: Consult Product Drawing
for details on placing headers
onto PC boards.
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.
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
Front Bend Rear Bend
Without Pegs With Pegs Without Pegs
Header RoHS Header RoHS Header RoHS
Part Nos. Equiv. Part Nos. Equiv. Part Nos. Equiv.
Standard UL94V-0, Tin Plated
644613 32–48 644617 32–48 644614 32–48
Standard UL94V-0, .000030 [0.00076] Gold Plated
644629 32–48 644633 32–48 644630 32–48
MTA-156 Polarized Lock 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