Mini ISO Automotive Relays - F4 Series TE Connectivity F4 series Mini ISO automotive relays are available with quick connect plug-in terminals or as PCB mount relays. Protected against dust to IP54, the F4 series are designed for a variety of automotive applications. Features and Benefits Integrated components Various contact arrangements and materials Non-latching (monostable) Applications: Ignition lock Lamp load (headlamps) Exhaust emission control ABS Fuel pump Electric Power Steering Wiper Control Car Alarm Blower Fans