Molex Incorporated MOLEX - KK® Connectors and Terminals


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Molex KK® Connectors and Terminals
3.96(.156") Pitch KK® Crimp Terminals 2478/2578

Above Drawing For Reference Only

Ordering Information and Dimensions   Top
Wire Size Maximum Insulation Outside Diameter Series Material Tin Plating Gold Plating No. 1 Gold Plating No. 2
Loose Chain Loose Chain Loose Chain
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*
Brass 08-50-0106 08-50-0105 08-56-0106 08-56-0105 08-55-0104 08-55-0103
18-22 2878 Phosphor Bronze 08-52-0127* 08-52-0126* 08-58-0128* 08-58-0127* 08-65-0119* 08-65-0118*
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*
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 KM40S
2578(a) 11-04-0420
2878 11-04-0418

* US Standard Product available through Molex franchised distributors.
Recommended wire range assumes stranded wire.
Plating No.1: 20µ" min. Gold in contact area with a flash overall
Plating No.2: 15µ" min. Gold in contact area only.