| Housing | Zinc alloy diecast |
| Contacts | Bronze & Brass |
| Contacts plating | Tin or Gold |
| Order Code | Description |
| RJ3FD-NT | Chassis 6.3mm jack female socket, Nickel plated housing, Tin plated contact |
| RJ3FD-BG | Chassis 6.3mm jack female socket, Black housing, Gold plated contact |