640468 datasheet(43/66 Pages) TEC

43 / 66 page

PAGE 43

MTA, CST-100 II and SL-156 Connectors

MTA-156 Polarized Lock Headers—Straight

Material and Finish

Housing—UL94V-0 rated, polyester, white

Posts—Copper alloy, tin plated .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), mul-

tiply .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 27, 28, and 47.

For mating half visuals, use connectors

with a locking ramp for polarization/

retention purposes, see pages 29 thru

32, 53 and 55.

For por polarizing purposes only use

connectors without a locking ramp. See

pages 29 thru 32, 49 and 51.

Header Ordering Information

The “Base Part Numbers” Chart at right

shows the base part number and num-

ber of posts available for the described

headers.

Prefixes and suffixes are determined

by the number of post positions in the

header. For example, the complete part

number for a 10-position header with

square posts with pegs would be::

Base number

644615 plus

prefix-and-suffix

4- — -0

The correct ordering number is

4-644615-0

All part numbers in

bold face are the

RoHS equivalent version. Example:

No. of

Lead Free

Pos.

RoHS

Prefix/Suffix

3-644615-2

thru

4-644615-8

See page 8 for an explanation of RoHS lead free

equivalents.

Recommended Mounting Hole Pattern

for .062 [1.57] Thk. PC Board

.210

[5.33]

.125

.425

[3.18]

.156

[3.96]

.076

[1.93]

.045

[1.14]

[10.80]

.100

[2.54]

[3.18]

.450

[11.43]

.545

[13.84]

.073

[1.85]

.156

[3.96]

.066/.062

[1.68/1.57]

Edge of Board

Dia.

.167

[4.24]

.225

[5.72]

Min.

.078

[1.98]

90° Ref.

Typ.

Retention Tabs

4 Plc.

Post No. 1

Polarized

Retention Peg

Typ.

Peg Hole

Polarized

Retention Peg

PC Board Hole Diameters

Square

Round

Post

.069/.065

.054/.050

[1.75/1.65]

[1.37/1.27]

Note: Consult Product Drawing

for details on placing headers

onto PC boards.

Base Part Numbers

Square Posts

Round Posts

Without Pegs

With Pegs

Without Pegs

With Pegs

Standard UL94V-0, Tin Plated

644611

32–35

644615

32–48

Standard UL94V-0, .000030 [0.00076] Gold Plated

644627

32–48

644631

32–35

Header

Part Nos.

RoHS

Equiv.

Header

Part Nos.

RoHS

Equiv.

Header

Part Nos.

RoHS

Equiv.

Header

Part Nos.

RoHS

Equiv.

—

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) are available upon request. Please contact product engineer or product

manager for details.

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