56
MTA-156
.156 [3.96]
.170
[4.32]
.156
[3.96]
Typ.
A
B
C
.161
[4.09]
.094
[2.39]
.380
[9.65]
.075
[1.91]
.677
[17.2]
.440
[11.18]
Ref.
.300
[7.62]
.125
[3.18]
Dia.
.312
[7.92 ]
± .005
± 0.13
.015
[0.38 ]
± .005
± 0.13
.100
[2.54]
Min.
.100
[2.54]
Min.
Circuitry
side
.090
[2.29]
Min.
.156
[3.96]
Typ.
x 45° Cham.
Both sides
D
[ ]
± .005
± 0.13
Recommended PC Board Layout
for .062 [1.57] Thk. PC Board
B
E
.145
[3.68]
.375
[9.53]
.138
[3.51]
.075
[1.91]
R.
.130
[3.3]
Typ.
Recommended Panel Cutout
Material and Finish
Housing — UL94V-0 rated, polyester,
see chart for color
Contacts — Phosphor bronze, post tin
plated
Note: Refer to pages 70 thru 74 for
approved wire listings.
Color Coding by Wire Size for
UL94V-0 Connectors
26 AWG — Blue
24 AWG — White
22 AWG — Red
20 AWG — Yellow
18 AWG — Orange
Connector Ordering
Information
The “Base Part Numbers”
Chart at right shows the
base part number and num-
ber of circuits available for
the described connectors.
Prefixes and suffixes are
determined by the number
of circuit positions in the
connector. For example, the
complete part number for a
12-position closed end con-
nector without mounting ears
for 18 AWG wire would be:
Base number 640859 plus
prefix-and-suffix
1- — -2
The correct ordering num-
ber is
1-640859-2
See page 15 for an explanation of
RoHS lead free equivalents.
Performance Data
Voltage Rating — 600 vac
Current Rating —5 amp max.
Low-Level Resistance —
7 m⍀ max. initial
Dielectric Withstanding Voltage —
1250 vac/1 min.
Insulation Resistance —
5000 M⍀ min. initial
Operating Temperature —
⫺55⬚ C to ⫹105⬚ C
Technical Documents
Product Specification
108-1058 MTA-156 Card Edge
Connectors
Application Specification
114-1020 MTA-156 Connectors,
Posted Connectors and
Card Edge Connectors
Base Part Numbers
Closed End Feed-Thru
Connector Type
Without With Without With
& Wire Size
Mounting Ears Mounting Ears Mounting Ears Mounting Ears
No. of No. of No. of No. of
Connector Circuits/ Connector Circuits/ Connector Circuits/ Connector Circuits/
Part Nos. RoHS Part Nos. RoHS Part Nos. RoHS Part Nos. RoHS
Equiv. Equiv. Equiv. Equiv.
Standard UL94V-0, Tin Plated
3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12,
18 AWG
640859
15,18, 20-24
640864
15,18, 20-24
641283
15,18, 20-24
641288
15,18, 20-24
0.8-0.9 mm
2
33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42,
45, 48, 50-54 45, 48, 50-54 45, 48, 50-54 45, 48, 50-54
3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12,
20 AWG
640860
15,18, 20-24
640865
15,18, 20-24
641284
15,18, 20-24
641289
15,18, 20-24
0.5-0.6 mm
2
33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42,
45, 48, 50-54 45, 48, 50-54 45, 48, 50-54 45, 48, 50-54
3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12,
22 AWG
640861
15,18, 20-24
640866
15,18, 20-24
641285
15,18, 20-24
641290
15,18, 20-24
0.3-0.4 mm
2
33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42,
45, 48, 50-54 45, 48, 50-54 45, 48, 50-54 45, 48, 50-54
3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12,
24 AWG
640862
15,18, 20-24
640867
15,18, 20-24
641286
15,18, 20-24
641291
15,18, 20-24
0.2 mm
2
33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42,
45, 48, 50-54 45, 48, 50-54 45, 48, 50-54 45, 48, 50-54
3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12,
26 AWG
640863
15,18, 20-24
640868
15,18, 20-24
641287
15,18, 20-24
641292
15,18, 20-24
0.12-0.15 mm
2
33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42, 33, 36, 39, 42,
45, 48, 50-54 45, 48, 50-54 45, 48, 50-54 45, 48, 50-54
No. of
Dimensions
Prefix/
Circuits
ABCDE
Suffix
3 .500 [12.70] .926 [23.52] 1.248 [31.70] .484 [12.29] .650 [16.51] -3
6 .968 [24.59] 1.394 [35.41] 1.716 [43.59] .952 [24.18] 1.118 [28.40] -6
9 1.436 [36.47] 1.862 [47.29] 2.184 [55.47] 1.420 [36.07] 1.586 [40.28] -9
12 1.904 [48.36] 2.330 [59.18] 2.652 [67.36] 1.888 [47.96] 2.054 [52.17] 1- -2
15 2.372 [60.25] 2.798 [71.07] 3.120 [79.25] 2.356 [59.84] 2.522 [64.06] 1- -5
18 2.840 [72.14] 3.266 [82.96] 3.588 [91.14] 2.824 [71.73] 2.990 [75.95] 1- -8
20 3.152 [80.06] 3.578 [90.88] 3.900 [99.06] 3.136 [79.65] 3.302 [83.87] 2- -0
21 3.308 [84.02] 3.734 [94.84] 4.056 [103.02] 3.292 [83.62] 3.458 [87.83] 2- -1
22 3.464 [87.99] 3.890 [98.81] 4.212 [106.98] 3.448 [87.58] 3.614 [91.80] 2- -2
23 3.620 [91.95] 4.046 [102.77] 4.368 [110.95] 3.604 [91.54] 3.770 [95.76] 2- -3
24 3.776 [95.91] 4.202 [106.73] 4.524 [114.91] 3.760 [95.50] 3.926 [99.72] 2- -4
MTA-156 IDC Card Edge Connectors—Closed End and Feed-Thru
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
