RXSY MX3.0 series 3.0mm pitch dual-row locking straight through-hole pin header features anti-loosening locking structure with dual-row design providing higher wiring density. UL94V-0 flame-retardant PA66 high-temperature resistant plastic and tin-plated copper alloy conductive pins offer excellent soldering performance with reliable contact and strong vibration resistance. Locking mechanism ensures wire harness retention under vibration and shock conditions, compatible with MX3.0 dual-row locking housings as a direct replacement for JST original equivalent products. Suitable for high-reliability multi-circuit connections in industrial automation equipment, power supplies, new energy control boards, and automotive electronics. RoHS compliant with support for rapid prototyping and bulk customization.