Package List: 4 Pin Male and Famale Connectors 20 Set, Crimp Pins and Crimp Sockets 80 Pairs.
JRN011 SERIES CONNECTOR: 4.2mm pitch connector is made of PA66, Flame retardant grade is UL94-V0. The operating temperature range is from -40℃ to +105℃. Under environmental conditions of 23℃ ± 5℃, the temperature rise at 9A current is no more than 30℃. The connector can be mated and unmated over 50 times. Exposure to air may result in slight color differences, but it doesn't affect the performance of the product.
CONNECTOR DESIGN: Connectors are ideal for power applications up to 9 amps per circuit, and feature fully isolated terminals, positive housing locks, low engagement forces, and polarized housings. The receptacle housing can be connected with a variety of plug options, including panel mount and free hanging plugs, or vertical and right angle headers.
CONTACTS DESIGN: The 18-24AWG contact is made of tin-plated brass. Locking tangs on the crimp contacts secure them firmly in the connector housing.The kit includes a large quantity of terminals for crimping practice or as spares, providing a great user experience, especially for beginners.
JRREADY TOOL for JRN011 SERIES CONNECTOR: The crimper: ACT-SY-JRN011S-H. Pin removal tool：JRconDRK-D173P: enhanced for a superior grip with an enlarged size and protective cover; JRDDS-D173: high strength and hardness, magnetic deburring and polishing ,upgrades metal handle; DAP-D173: Hardened alloy steel and innovative push rod design. 
COMPATIBLE with MOLEX MODELS:4pin connector: 39013049 / 39012045 ;Contacts pin: 39-00-0040/39-00-0041，socket: 39-00-0038/39-00-0039.