746
SERIES
Press-Fit Card Edge Connectors 0.125” (3.175mm) Pitch
Features:
•
•
•
•
•
•
•
•
•
0.125” (3.175mm) contact spacing x 0.250” (6.35mm) row spacing
Accepts 0.062” (1.57mm) nominal thickness P.C. board
High profile insulator body, 0.645”(16.38mm) with notched ends option
Contact termination options include P.C. tail, and 0.025” (0.64mm) square wire wrap
Press-fit compliant section for gas tight reliable connection in plated through holes eliminates soldering
operations
Single or dual row configurations
Accepts between contact and in-contact polarizing keys (special features if requested)
Tools available for insulator and contact removal. Simple “flat rock” tooling is used for connector installation
RoHS Compliant & UL Certified
Specifications:
Insulator Material
Contact Material
Contact Plating
Current Rating
Contact Resistance
Dielectric Withstanding Voltage
Insulation Resistance
Operating Temperature
Insertion Force
Withdrawal Force
Contact insertion into Hole
Contact Retention in Hole
Re-Insertability in same Hole
UL 94V-0 Thermoplastic Polyester, Black
Copper Alloy
30µ” Gold Plating on mating area and Tin Plating on tails with Nickel underplating all over
3 amps
10 milliohms Maximum
1500 V AC rms at sea level between adjacent contacts
5000 megaohms Minimum
-40°C to +105°C
16 oz (4.45 N) maximum per contact pair when tested with .070” (1.78mm) thick gauge
1 oz (0.28 N) minimum per contact pair when tested with .054” (1.37mm) thick gauge
20 lbs (89 N) Maximum
10 lbs (44 N) Minimum
3 Times Minimum
Example Part Number:
Series
Total Number of Contacts
Contact Code
746-070-520-206
Contact Rows:
1
2
5
6
Insulator Options:
01
Description:
Single Row
Dual Row
Single Row
Dual Row
Description:
Card slot Depth:
.515 (13.08) Slot Depth
.515 (13.08) Slot Depth
.340 (8.64) Slot Depth
.340 (8.64) Slot Depth
Contact Rows & Card Slot Depth
Insulator Options
.645”(16.38mm) Full Height Ends
.550”(13.97mm) Notched Ends
Series:
746
Total Number of Contacts:
005, 006, . . . . 060
010, 012, . . . . 120
Contact Code:
520
525
527
540
541
545
553
560
Contact Rows:
Single Row
Dual Row
Description:
P.C. Tail
P.C. Tail
P.C. Tail
Wire Wrap
Wire Wrap
Wire Wrap
Wire Wrap
Contact Point:
Regular Point
High Point
High Point
Regular Point
Regular Point
High Point
High Point
Tail Length “G”:
.190 (4.83)
.190 (4.83)
.375 (9.53)
.560 (14.22)
.750 (19.05)
.190 (4.83)
.702 (17.83)
.190 (4.83)
06
IN-CONTACT
POLARIZING KEY
P/N 745-240-328
BETWEEN CONTACT
POLARIZING KEY
P/N 306-240-318
Make Before Break (MBB) Contacts
Ordering Code Notes:
1) All connector sizes up to 60 contacts single row / 120 contacts dual row
are available upon request.
2) Make-Before-Break switching contacts, assembled in specific contact
positions are available upon request.
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customerservice@edac.net
746
SERIES
Press-Fit Card Edge Connectors 0.125” (3.175mm) Pitch
SECTION "Y" - "Y"
CONTACT ROWS & INSULATOR OPTIONS
MBB CONTACTS
MUST BE USED IN PAIRS AND IN
INSULATOR AND CARD
SLOT DEPTH OPTION SHOWN
NOT AVAILABLE FOR 726 SERIES
"C"
"D"
.390
(9.91)
CARD SLOT ACCEPTS .054(1.37) TO
.070 (1.78) THICK P.C. BOARD
"Y"
.160 (4.06)
CODE 506
& 606
.245
(6.22)
.550
(13.97)
.550
(13.97)
.515
(13.08)
.420
CARD
(10.67) SLOT
.420
(10.67) .550
(13.97)
CODE 106
& 206
.260 (6.60) REGULAR
POINT OR
.335 (8.51) HIGH
POINT CONTACTS
CODE 206
(MBB) CONTACTS
HIGH POINT CONTACTS.
.645
(16.38)
.100
(2.54)
"G" ± 0.020"
.025 (0.64) SQUARE
P.C. & WIRE WRAP TAILS
.125 (3.18)
"E"
REGULAR POINT
CONTACTS NOT
RECOMMENDED.
"Y"
.340 (8.64)
CARD SLOT
.515
(13.08)
CARD SLOT
CODE 501 & 601
CODE 101 & 201
CODE 201
(MBB) CONTACTS
.250
(6.35)
.340
(8.64)
EDAC
Single Row Versions May Require
Backup Springs Depending upon
the Application.
RECOMMENDED DAUGHTER BOARD
INSULATOR BOARD
CODES
TAB
101 & 201 - .535 (13.59)
106 & 206 - .440 (11.18)
501 & 601 - .360 (9.14)
506 & 606 - .265 (6.73)
.080 (2.03) CUT OUT
FOR IN-CONTACT
POLARIZING KEY
( "D"
.050 (1.27) CUT OUT
FOR BETWEEN CONTACT
POLARIZING KEY
MINUS .012 (0.30) +.000 (0.38)
-.015
CARD SLOT
DEPTH PLUS
.020 (0.51)
.250 (6.35) ROW SPACING
.040 (1.02) DIA ± .003 (0.08)
SEE NOTE BELOW
.008 (0.20) DIA
"E"
RECOMMENDED MOTHER BOARD HOLE PATTERN
TO OBTAIN OPTIMUM COMPLIANT SECTION PERFORMANCE,
DRILL HOLES .0453 ± .001 (1.15 ± 0.03) DIAMETER
COPPER PLATE, .001 (25.4 MICRONS) MINIMUM THICKNESS,
FOLLOWED BY TIN PLATE TO PROVIDE FINISHED
HOLES .040 ± .003 (1.02 ± 0.08) DIAMETER
.125 (3.18)
NUMBER OF CONTACTS
Single
5
6
15
18
22
25
28
30
35
36
40
43
50
60
Double
10
12
30
36
44
50
56
60
70
72
80
86
100
120
Inch
0.910
1.035
2.160
2.535
3.035
3.410
3.785
4.035
4.660
4.785
5.285
5.660
6.535
7.785
"C"
mm
23.11
26.29
54.86
64.39
77.09
86.61
96.14
102.49
118.36
121.54
134.24
143.76
165.99
197.74
Inch
0.750
0.875
2.000
2.375
2.875
3.250
3.625
3.875
4.500
4.625
5.125
5.500
6.375
7.625
"D"
mm
19.05
22.23
50.80
60.33
73.03
82.55
92.08
98.43
114.30
117.48
130.18
139.70
161.93
193.68
Inch
0.500
0.625
1.750
2.125
2.625
3.000
3.375
3.625
4.250
4.375
4.875
5.250
6.125
7.375
"E"
mm
12.70
15.88
44.45
53.98
66.68
76.20
85.73
92.08
107.95
111.13
123.83
133.35
155.58
187.33
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customerservice@edac.net
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