Relay Applications for Automotive Industry (including EV/PHV)
Relays used in automotive electronics must be highly reliable and meet IATF16949 requirements.
Relays by load
Battery charge | Lamp control | Motor control | Heater control | Solenoid control
Battery charge
| Applications | Rated current | Relay (example) | ( )=Contact configuration |
|---|---|---|---|
| EV/PHV battery,
On board charger (DC) | 20A/30A | 450VDC operation | FTR-E1 (1a) |
| 60A | 400VDC operation | FTR-E1-HC (1a) | |
| EV/PHV battery,
On board charger (AC) | 32A | 250VAC operation | FTR-K5 (1a) |
Lamp control
| Applications | Rated current | Relay (example) | ( )=Contact configuration |
|---|---|---|---|
| Head lamp | 25A | 1 Form U, Inrush current 60A | FBR53 (1a) |
| 40A | 1 Form U, inrush current 80A | FBR53-HW (1a) | |
| Blinker, Room light
Tail lamp Hazard lamp | 25A | Compact slim | FTR-P3 (1c) |
Motor control
| Applications | Rated current | Relay (example) | ( )=Contact configuration |
|---|---|---|---|
| Heater blower,
Slide door, Starter, Fuel pump, EPS, Air conditioner | 25A | 1 Form U, max.current 30A
Compact slim, inrush current 60A Twin relay |
FBR53 (1a)
FTR-P3 (1c) FTR-P4 (1cx2) |
| 40A | Compact, max. current 40A | FBR53-HW (1a) | |
| Wiper,
Door lock, Power window, Automatic seat belt | 25A | Compact slim
Compact quiet Compact semi-quiet (60dB) Twin, quiet (50dB) Compact twin | FTR-P3 (1c)
FTR-P5 (1c)、FTR-P7 (1c) FTR-G1 (1a) FTR-P2 (1cx2) FTR-P4 (1cx2) |
| Mirror | 1A | Compact slim | SY (1c) |
| 25A | Twin, quiet (50dB) | FTR-P2 (1cx2) |
Heater control
| Applications | Rated current | Relay (example) | ( )=Contact configuration |
|---|---|---|---|
| Seat heater | 25A | Compact quiet (50dB) | FTR-P5 (1c), FTR-P7 (1c) |
| Defogger | 25A | 1 Form U, Max. current 30A | FBR53 (1a) |
| 40A | 1 Form U, Max. current 40A | FBR53-HW (1a) |
Solenoid control
| Applications | Rated current | Relay (example) | ( )=Contact configuration |
|---|---|---|---|
| Car horn,
Trunk opener | 25A | Compact slim
Compact twin | FTR-P3 (1c)
FTR-P4 (1cx2) |