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Relay Applications for Automotive Industry (including EV/PHV)

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Automotive relay applications

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)
150A 450VDC operation FTR-E3 (1a)
EV/PHV battery, 
On board charger (AC)
32A 250VAC operation FTR-K5 (1a)
EV/PHV battery junction box 150A 450VDC operation FTR-E3 (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
Compact flat SMD
FBR53 (1a)
FTR-P3 (1c)
FTR-P4 (1cx2)
FTR-P6 (1c)
40A Compact, max. current 40A FBR53-HW (1a)
Wiper,
Door lock, 
Power window, 
Automatic seat belt
25A Compact slim
Compact quiet
Compact flat SMD
Compact semi-quiet (60dB)
Twin, quiet (50dB)
Compact twin
FTR-P3 (1c)
FTR-P5 (1c)、FTR-P7 (1c)
FTR-P6 (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)

Automotive Relay Line-up >>