BUY B4B-PH-K-S(LF)(SN) https://www.utsource.net/itm/p/8931317.html

The JST B4B-PH-K-S(LF)(SN) is a 4-pin, single-row, surface-mount connector. It is designed for use in a variety of applications, including automotive, industrial, and consumer electronics. The connector features a low-profile design and a secure locking mechanism. It is rated for a current of up to 5A and a voltage of up to 250VAC. The connector is also RoHS compliant. This connector is ideal for use in applications where space is limited, such as in small electronic devices. (For reference only)