FLAG TYPE FEMALE INSULATED TERMINAL | 1.5MM 2.5MM 4-6MM

Flag Type Female Insulated Terminal | 1.5mm 2.5mm 4-6mm

Flag Type Female Insulated Terminal | 1.5mm 2.5mm 4-6mm

Blog Article

Flag-Type Female Insulated Terminals (1.5mm, 2.5mm, 4-6mm) – Complete Guide


Flag-type female insulated terminals (also called flanged spade terminals) are crimp connectors with a flat, flag-shaped contact end and a plastic insulator. They are commonly used in automotive, industrial, and appliance wiring for secure, removable connections.






???? Key Features


✅ Material:





  • Terminal: Tin-plated copper for conductivity & corrosion resistance.




  • Insulation: PVC or nylon (color-coded by size).
    ✅ Sizes:




  • 1.5mm² (16 AWG), 2.5mm² (14 AWG), 4-6mm² (12-10 AWG).




  • Blade Size: Fits standard male quick-disconnect tabs (e.g., 4.8mm, 6.3mm).
    ✅ Voltage Rating: Typically 300V–600V.
    ✅ Temperature Range: -40°C to +105°C (depends on insulation).







???? Why Use Flag-Type Terminals?


✔ Secure Connection – Prevents accidental disconnection.
✔ Insulated – Reduces short-circuit risks.
✔ Removable – Easy maintenance/replacement.
✔ Vibration-Resistant – Better than bare wire in screw terminals.






???? Common Applications




  • Automotive wiring (fuse boxes, relays, sensors).




  • Industrial control panels (contactors, switches).




  • Home appliances (washing machines, refrigerators).




  • Battery & solar connections.







???? How to Crimp Flag-Type Terminals?




  1. Strip Wire (~8–10mm).




  2. Insert Wire into the terminal barrel.




  3. Crimp using a ratchet crimper (e.g., HX50B for 1.5–6mm²).




  4. Tug Test to ensure a secure connection.




  5. Slide Insulation over the crimped terminal (if not pre-insulated).




⚠ Warning:





  • Do not solder alone – Crimping is required for mechanical strength.




  • Match terminal size to wire gauge (1.5mm² for thin wires, 6mm² for thicker).







???? Sizing Guide (Wire vs. Terminal)
































Wire Size (mm²) AWG Blade Size (mm) Typical Color
1.5mm² 16 AWG 4.8mm (0.187") Red
2.5mm² 14 AWG 4.8mm or 6.3mm Blue
4-6mm² 12-10 AWG 6.3mm (0.25") Yellow





???? Where to Buy?




  • Amazon (Search "flag type female insulated terminal").




  • Auto parts stores (for automotive use).




  • Electrical suppliers (e.g., RS Components, TE Connectivity).







???? FAQ


❓ Can I use uninsulated flag terminals?
→ Yes, but add heat shrink tubing for insulation.


❓ Are these the same as spade terminals?
→ Similar, but flag types have a wider base for better stability.


❓ What crimper should I use?
→ Ratchet crimper (HX50B) for 1.5–6mm², hydraulic crimper for larger sizes.





Need recommendations? Tell me:



Report this page