MTA-156 .156 [3.96] 50 tyco MTA, CST-100 II, SL-156 and AMP Economy Power (EP) Connectors ANP Flectronics 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 pur- poses. 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 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, 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 with pegs would be: Base number 644615 plus prefix-and-suffix 1- -0 The correct ordering number is 1-644615-0 The set of numbers in bold face are the RoHS equivalent version of the standard prod- uct. Example: Lead Free No. of | Standard ROHS Pos. Prefix/Suffix Prefix/Sutfix 2 644615-2 3-644615-2 thru 18 1-644615-8 4-644615-8 See page 15 for an explanation of RoHS lead free equivalents. MTA-156 Polarized Lock HeadersStraight [5.33] 90 Ref. BEE Ax foo-a Typ. | Retention Tabs y Y 4Plc.