2478,2578,2878 KK Series Datasheet by Molex

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E-68 990
Sockets and Edge Connectors
E
FEATURES AND SPECIFICATIONS
Features and Benefits
Crimp wire sizes 18 to 26 AWG
Patented double cantilever design
Complete line of terminal crimping equipment available
2878 bifurcated terminal offers 2 points of contact for
increased reliability
Reference Information
Packaging: Bag or reel
UL File No.: E29179
CSA File No.: LR19980
Use With: 2574 housing
Designed In: Inches
Electrical
Voltage: 250V
Current: Use table
Contact Resistance: 20m
max.
Dielectric Withstanding Voltage: 1500V
Insulation Resistance: 50,000 M
min.
Mechanical
Contact Insertion Force: 1.36kg (3 lb) max.
Contact Retention to Housing: 3.63kg (8 lb) min.
when pulled in an axial direction
Normal Force: 0.75kg (1.65 lb)
Physical
Contact: Brass/Phosphor Bronze
Plating: See Table
Temperature: 0 to +50˚C
AWG
18 20 22 24 26
Phosphor Bronze
(Amperes max.)
7.00 6.25 5.50 5.00 4.50
Brass
(Amperes max.)
5.00 4.75 4.50 4.25 4.00
3.96mm (.156") Pitch
KK
®
Single-Sided Terminals
2478/2578/2878
• US Standard Product, available through Molex franchised distributors
Recommended wire range assumes stranded wire
Plating No. 1: 20
µ
" min. Gold in contact area with a flash overall
Plating No. 2: 15
µ
" min. Gold in contact area only
Wire Size Maximum Insulation
Outside Diameter Series Material Tin Plating Gold Plating No. 1 Gold Plating No. 2
Bag Reel Bag Reel Bag Reel
18-20 2.79 (.110) 2478 Phosphor Bronze • 08-52-0072 • 08-52-0071 • 08-58-0122 • 08-58-0121 • 08-65-0115 • 08-65-0114
18-20 2.79 (.110) 2478 Brass
08-50-0106 08-50-0105 08-56-0106 08-56-0105 08-55-0104 08-55-0103
18-20 2.79 (.110) 2878 Phosphor Bronze • 08-52-0127 • 08-52-0126 • 08-58-0128 • 08-58-0127 • 08-65-0119 • 08-65-0118
18-20 2.79 (.110) 2878 Brass 08-50-0116 08-50-0115 • • • •
22-26 1.65 (.065) 2578 Phosphor Bronze • 08-50-0134 • 08-50-0133 • 08-58-0126 • 08-58-0125 • 08-65-0117 • 08-65-0116
22-26 1.65 (.065) 2578 Brass 08-50-0108 08-50-0107 08-56-0108 08-56-0107 08-55-0106 08-55-0105
Terminal Engineering No.
Hand Tools Crimp Machine
Crimping Order and Engineering No. Extraction Order and Engineering No. Bench Order and Engineering No. Automatic Type
(JHTR-2445-A) (HTA-2174) (TM-40D)
2478
11-01-0026 11-03-0016
11-04-0418
KM40S2578(a) 11-04-0420
2878 11-04-0418
ORDERING INFORMATION AND DIMENSIONS
Note: 2478 shown

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