DJ621-1.8A (ST730495-3)

The DJ621-1.8A series (P/N: ST730495-3) provides reliable signal transmission for automotive control systems:

• ‌1.8mm phosphor bronze contacts‌ with selective gold plating (3μm) for low-resistance circuits
• ‌Dual-spring contact architecture‌ maintains <5mΩ resistance under 15G vibration (ISO 16750-3 certified)
• ‌Self-cleaning contact edges‌ reduce fretting corrosion by 50% compared to standard designs
• ‌High-temperature nylon housing‌ withstands 175°C peak temperatures in engine bay applications
• ‌Color-coded polarization ribs‌ (white/red) prevent mis-mating during harness assembly

Key applications: ‌TCU (Transmission Control Unit) connectors and electric parking brake modules‌. Compatible with Delphi 15328856 receptacles.