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
Series image for CT Series Relays

CT Series Relays

Part number list

Results 3
Models table for series CT Series Relays
Part No.DatasheetRated Coil VoltageContact ArrangementProtective ConstructionTerminal TypeOperating 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 RangeContact Resistance (Initial)Contact MaterialNominal Switching Capacity (Resistive Load) Contact Data: Max. Carrying CurrentMin. Switching Load (Resistive) Insulation Resistance (Min. MΩ)(Initial)Dielectric Strength (Between Open Contacts) (Initial)Dielectric Strength (Between Contacts and Coil) (Initial)Operate (Set) Time
(At Rated Coil Voltage) (At 20oC) (Initial)
Release (Reset) Time
(at Rated Coil Voltage) (at 20°C) (Initial)
Shock Resistance: Functional Shock Resistance: DestructiveVibration Resistance: FunctionalVibration Resistance: DestructiveExpected Life: Mechanical LifeExpected Life: ElectricalConditionsWeight (Typ.)Packing QuantityInner Carton (Pieces)Outer Carton (Pieces)
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
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
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
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