CT Series Relays

Panasonic's CT Series Relay is a super miniature Automotive Relays with SPDT (1FormC) and twin type (1FormC x 2) available. The twin-type contact arrangement is a single relay that can control forward and reverse directions of a DC motor using an H-bridge circuit. The CT Relay has a simple PCB through-hole footprint with coil terminals on one side and contact terminals on the other side to enable an easier PCB layout.

This relay has an SPDT (1FormC) contact arrangement and uses a 12VDC coil with a maximum pick-up voltage of 7.2VDC and 800mW nominal operating power. With a nominal resistive load switching of 20A @ 14VDC (10A @ 14VDC for normally closed contact), this relay can also carry 30A for up to 2 minutes or 20A for 1 hour continuously at 85 Degrees Celsius.

Features and Benefits of CT Series Relays

Sound Pressure Reduced By Approx. 20 dB
Space-Saving
Adopting Standard Terminal Pitch (For Compact Relays)
Wiper Load Models Are Listed

CT Series Relays - Applications

Powered Windows, Mirrors, Sunroof, And Seats
Automatic Door Locks
Lift Gates
Slide Door Closers

Models table for series CT Series Relays
Part No.	Rated Coil Voltage	Contact Arrangement	Protective Construction	Terminal Type	Operating Function	Operate (Set) Voltage (at20°C) (Initial)	Release (Reset) voltage (at20°C) (Initial)	Rated Operating Current [±10%] (at 20°C)	Coil Resistance (At 20oC)	Rated Operating Power (at 20°C)	Usable Voltage Range	Contact Resistance (Initial)	Contact Material	Nominal Switching Capacity (Resistive Load)	Contact Data: Max. Carrying Current	Min. Switching Load (Resistive)	Insulation Resistance (Min. MΩ)(Initial)	Dielectric Strength (Between Open Contacts) (Initial)	Dielectric Strength (Between Contacts and Coil) (Initial)	Operate (Set) Time<br>(At Rated Coil Voltage) (At 20oC) (Initial)	Release (Reset) Time<br>(at Rated Coil Voltage) (at 20°C) (Initial)	Shock Resistance: Functional	Shock Resistance: Destructive	Vibration Resistance: Functional	Vibration Resistance: Destructive	Expected Life: Mechanical Life	Expected Life: Electrical	Conditions	Weight (Typ.)	Packing Quantity	Inner Carton (Pieces)	Outer Carton (Pieces)
ACT112	12V DC	1 Form C	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 4 g .14 oz	Tube	30	1,500
ACT512	12V DC	1 Form C x 2 (10 pins)	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 8 g .28 oz	Tube	30	900
ACT212	12V DC	1 Form C x 2 (8 pins)	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 8 g .28 oz	Tube	30	900

Models table for series CT Series Relays
Part No.	Rated Coil Voltage	Contact Arrangement	Protective Construction	Terminal Type	Operating Function	Operate (Set) Voltage (at20°C) (Initial)	Release (Reset) voltage (at20°C) (Initial)	Rated Operating Current [±10%] (at 20°C)	Coil Resistance (At 20oC)	Rated Operating Power (at 20°C)	Usable Voltage Range	Contact Resistance (Initial)	Contact Material	Nominal Switching Capacity (Resistive Load)	Contact Data: Max. Carrying Current	Min. Switching Load (Resistive)	Insulation Resistance (Min. MΩ)(Initial)	Dielectric Strength (Between Open Contacts) (Initial)	Dielectric Strength (Between Contacts and Coil) (Initial)	Operate (Set) Time<br>(At Rated Coil Voltage) (At 20oC) (Initial)	Release (Reset) Time<br>(at Rated Coil Voltage) (at 20°C) (Initial)	Shock Resistance: Functional	Shock Resistance: Destructive	Vibration Resistance: Functional	Vibration Resistance: Destructive	Expected Life: Mechanical Life	Expected Life: Electrical	Conditions	Weight (Typ.)	Packing Quantity	Inner Carton (Pieces)	Outer Carton (Pieces)
ACT112	12V DC	1 Form C	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 4 g .14 oz	Tube	30	1,500
ACT512	12V DC	1 Form C x 2 (10 pins)	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 8 g .28 oz	Tube	30	900
ACT212	12V DC	1 Form C x 2 (8 pins)	Sealed	PC board type	Single side stable	Max. 7.2V DC	Min. 1.0V DC	66.7 mA	180Ω	800 mW	10 to 16V DC	Max. 100mΩ (N.O. side: typ. 7mΩ, N.C. side: typ. 10mΩ) (By voltage drop 1A 6V DC)	Ag alloy	N.O.side: 20A 14V DC, N.C.side: 10A 14V DC	N.O.side: 25A for 1 hour, 35A/2 min. (Coil applied voltage 14V DC, at 20°C 68°F) 20A for 1 hour, 30A/2 min. (Coil applied voltage 14V DC, at 85°C 185°F)	1A 14V DC (at 20°C 68°F)	Min. 100 MΩ (at 500V DC, Measurement at same location as [Dielectric strength] section.)	500 Vrms for 1 min. (Detection current: 10mA)	500 Vrms for 1 min. (Detection current: 10mA)	Max. 10ms (without contact bounce time)	Max. 10ms (Without contact bounce time) (Without diode)	Min. 100 m/s² [approx. 10G] (Half-wave pulse of sine wave: 11ms; detection time: 10µs)	Min. 1,000 m/s² [approx. 100G] (Half-wave pulse of sine wave: 6ms)	10 to 100 Hz, Min. 44.1 m/s² [approx. 4.5G] (detection time: 10µs)	10 to 500 Hz, Min. 44.1m/s²[approx. 4.5G] (Time of vibration for each direction; X, Y direction: 2 hours, Z direction: 4 hours)	Min. 10⁷ (at 120 cpm)	[Resistive load] Min. 10⁵ (at rated switching capacity, operating frequency: 1s ON, 9s OFF [Motor load] N.O. side: Min. 2x10⁵ at Inrush 25A, Steady 5A 14V DC, Min. 10⁵ at 25A 14V DC motor lock condition N.C. side: Min. 2x10⁵ at brake current 20A 14V DC (operating frequency: 0.5s ON, 9.5s OFF)	Ambient temperature: –40 to +85°C –40 to +185°F, Humidity: 5 to 85% R.H. (Please avoid icing or condensation)	Approx. 8 g .28 oz	Tube	30	900