CB MINI-ISO AUTOMOTIVE RELAY CB RELAYS FEATURES TYPICAL APPLICATIONS * This relay has an Mini-ISO (International Organization for Standardization) terminal arrangement. * Relay is compact and high capacity (40 A). Compact form factor realized with space saving 22 26 mm .866 1.024 inch small base area thanks to integrated bobbin and base construction. Features high switching capacity of 40 A * Features high thermal resistance of 125C 257F (heat resistant type). Heat resistant type is available that can withstand use near engines. (40 A switching capacity) * Built-in resistor type is also available. * Automobiles Headlights, Cell motors, Air conditioners, ABS, EPS, etc. * Construction equipment * Agricultural equipment, Conveyor, etc. ORDERING INFORMATION CB Contact arrangement 1a: 1 Form A 1: 1 Form C Contact rating Nil: Standard type H: High contact capacity type Protective construction Nil: Sealed type F: Flux-resistant type Heat resistant of types Nil: Standard type T: Heat resistant type Protective element Nil: None R: with resistor inside Mounting classification Nil: Plug-in type P: PC board type M: Bracket type Coil voltage (DC) 12V, 24 V ds_61202_en_cb: 010113J 1 CB TYPES 1. Standard type Contact arrangement Mounting classification PC board type 1 Form A Plug-in type Bracket type PC board type 1 Form C Plug-in type Bracket type PC board type* High contact capacity (1 Form A) Plug-in type Bracket type Sealed type Nominal coil voltage Flux-resistant type Part No. Part No. 12V DC CB1a-P-12V CB1aF-P-12V 24V DC CB1a-P-24V CB1aF-P-24V 12V DC CB1a-12V CB1aF-12V 24V DC CB1a-24V CB1aF-24V 12V DC CB1a-M-12V CB1aF-M-12V 24V DC CB1a-M-24V CB1aF-M-24V 12V DC CB1-P-12V CB1F-P-12V 24V DC CB1-P-24V CB1F-P-24V 12V DC CB1-12V CB1F-12V 24V DC CB1-24V CB1F-24V 12V DC CB1-M-12V CB1F-M-12V 24V DC CB1-M-24V CB1F-M-24V 12V DC CB1aH-P-12V CB1aHF-P-12V 24V DC CB1aH-P-24V CB1aHF-P-24V 12V DC CB1aH-12V CB1aHF-12V 24V DC CB1aH-24V CB1aHF-24V 12V DC CB1aH-M-12V CB1aHF-M-12V 24V DC CB1aH-M-24V CB1aHF-M-24V Standard packing; Carton: 50 pcs. Case: 200 pcs. Note: Please use "CBR" to order with resistor inside type. (Asterisks "" should be filled in from ORDERING INFORMATION.) 2. Heat resistant type Contact arrangement Mounting classification PC board type 1 Form A Plug-in type Bracket type PC board type 1 Form C Plug-in type Bracket type PC board type* High contact capacity (1 Form A) Plug-in type Bracket type Sealed type Nominal coil voltage Flux-resistant type Part No. 12V DC Part No. CB1a-T-P-12V CB1aF-T-P-12V 24V DC CB1a-T-P-24V CB1aF-T-P-24V 12V DC CB1a-T-12V CB1aF-T-12V 24V DC CB1a-T-24V CB1aF-T-24V 12V DC CB1a-T-M-12V CB1aF-T-M-12V 24V DC CB1a-T-M-24V CB1aF-T-M-24V 12V DC CB1-T-P-12V CB1F-T-P-12V 24V DC CB1-T-P-24V CB1F-T-P-24V 12V DC CB1-T-12V CB1F-T-12V 24V DC CB1-T-24V CB1F-T-24V 12V DC CB1-T-M-12V CB1F-T-M-12V 24V DC CB1-T-M-24V CB1F-T-M-24V 12V DC CB1aH-T-P-12V CB1aHF-T-P-12V 24V DC CB1aH-T-P-24V CB1aHF-T-P-24V 12V DC CB1aH-T-12V CB1aHF-T-12V 24V DC CB1aH-T-24V CB1aHF-T-24V 12V DC CB1aH-T-M-12V CB1aHF-T-M-12V 24V DC CB1aH-T-M-24V CB1aHF-T-M-24V Standard packing; Carton: 50 pcs. Case: 200 pcs. Note: Please use "CBR" to order with resistor inside type. (Asterisks "" should be filled in from ORDERING INFORMATION.) RATING 1. Coil data 1) No protective element Contact arrangement Nominal coil voltage 1 Form A, 1 Form C 12V DC 24V DC High contact capacity (1 Form A) Drop-out voltage Nominal operating current 3 to 7V DC 1.2 to 4.2V DC 6 to 14V DC 2.4 to 8.4V DC Pick-up voltage 12V DC 3 to 7V DC 1.2 to 4.2V DC 24V DC 6 to 14V DC 2.4 to 8.4V DC Coil resistance Nominal operating power Usable voltage range 117mA 103 1.4W 10 to 16V DC 75mA 320 1.8W 20 to 32V DC 117mA 103 1.4W (PC board type) 150mA 80 1.8W 58mA 411 1.4W (PC board type) 75mA 320 1.8W Drop-out voltage (Initial, at 20C 68F) Nominal operating current (at 20C 68F) Combined resistance (10%) (at 20C 68F) Nominal operating power (at 20C 68F) 10 to 16V DC 20 to 32V DC Note: Other pick-up voltage types are also available. Please contact us for details. 2) With resistor inside 2 Contact arrangement Nominal coil voltage Pick-up voltage (Initial, at 20C 68F) 1 Form A, 1 Form C 12V DC 3 to 7V DC 1.2 to 4.2V DC 134mA 89.5 1.6W 10 to 16V DC 24V DC 6 to 14V DC 2.4 to 8.4V DC 84mA 287.2 2.0W 20 to 32V DC Usable voltage range ds_61202_en_cb: 010113J CB 2. Specifications 1) Standard type (12 V coil voltage) Characteristics Item Specification Arrangement Contact 1 Form A Contact resistance (Initial) Typ2m (By voltage drop 6 V DC 1 A) Contact material Ag alloy (Cadmium free) Nominal switching capacity (Initial) Rating Max. carrying current (Initial) (14V DC, at 85C 185F, continuous) Nominal operating power 40A 14V DC N.O.: 40A 14V DC N.C.: 30A 14V DC N.O.: 40A N.O.: 40A, N.C.: 30A N.O.: 40A 1.4W 1.4W 1.8W (1.4W: PC board type) Min. switching capacity (resistive load)*1 Insulation resistance (Initial) Electrical characteristics Breakdown voltage (Initial) Expected life Conditions 70A 14V DC (at 20C 68F) 50A 14V DC (at 85C 185F) 1A 14V DC Min. 20 M (at 500V DC, Measurement at same location as "Breakdown voltage" section.) Between open contacts 500 Vrms for 1 min. (Detection current: 10mA) Between contacts and coil 500 Vrms for 1 min. (Detection current: 10mA) Operate time (at nominal coil voltage) (at 20C 68F) Max. 15ms (excluding contact bounce time) (Initial) Release time (at nominal coil voltage) (at 20C 68F) Max. 15ms (excluding contact bounce time) (Initial) Shock resistance Mechanical characteristics High contact capacity (1 Form A) 1 Form C Vibration resistance Functional Min. 200 m/s2 {20G} Destructive Min. 1,000 m/s2 {100G} Functional 10 Hz to 500 Hz, Min. 44.1m/s2 {4.5G} Destructive 10 Hz to 2,000 Hz, Min. 44.1m/s2 {4.5G} Time of vibration for each direction; X. Y. Z direction: 4 hours Electrical (at nominal switching capacity) Flux-resistant type: Min. 105, Sealed type: Min. 5104 (Operating frequency: 2s ON, 2s OFF) Mechanical Min. 106 (at 120 cpm) Standard type; Ambient temperature: -40 to +85C -40 to +185F, Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) Conditions for operation, transport and storage*2 Heat resistant type; Ambient temperature: -40 to +125C -40 to +257F, Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) Max. operating speed 15 cpm (at nominal switching capacity) Mass Approx. 33 g 1.16 oz Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. *2. The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value. Refer to "6. Usage, Storage and Transport Conditions" in AMBIENT ENVIRONMENT section in Relay Technical Information. 2) Standard type (24 V coil voltage) Characteristics Item Specifications Arrangement Contact 1 Form A Contact resistance (Initial) Max. 15m (By voltage drop 6 V DC 1 A) Contact material Ag alloy (Cadmium free) 20A 28V DC N.O.: 20A 28V DC N.C.: 10A 28V DC 20A 28V DC Max. carrying current (Initial) (28V DC, at 85C 185F, continuous) 20A N.O.: 20A, N.C.: 10A 20A Nominal operating power 1.8W 1.8W 1.8W, 1.4W (PC board type) Nominal switching capacity (Initial) Rating High contact capacity (1 Form A) 1 Form C Note: All other specifications are the same as those of standard type (12 V coil voltage) 3) Heat resistant type (12 V and 24 V coil voltage) Characteristics Specifications Item Arrangement 12V 1 Form A 1 Form C Contact Contact resistance (Initial) 24V High contact capacity (1 Form A) 20A 28V DC N.O.: 20A 28V DC N.C.: 10A 28V DC 20A 28V DC 25A 28V DC N.O.: 25A 28V DC N.C.: 10A 28V DC 25A 28V DC 1.8W 1.8W 1.8W, 1.4W (PC board type) Ag alloy (Cadmium free) Nominal switching capacity (Initial) 40A 14V DC N.O.: 40A 14V DC N.C.: 30A 14V DC Max. carrying current (Initial) (at 85C 185F, continuous)* 50A 14V DC N.O.: 50A 14V DC 45A 50A N.C.: 30A 14V DC 14V DC 14V DC Nominal operating power High contact capacity (1 Form A) Max. 15m (By voltage drop 6 V DC 1 A) Contact material Rating 1 Form C 1 Form A 1.4W 1.4W 40A 14V DC 1.8W 1.4W (PC board type) Notes: 1. All other specifications are the same as those of standard type (12 V coil voltage) 2. *Current value in which carry current is possible when the coil temperature is 180C 356F ds_61202_en_cb: 010113J 3 CB REFERENCE DATA CB RELAYS (Standard type) 1. Allowable ambient temperature 2. Max. switching capability (Resistive load) (Heat resistant standard type) (Standard type) 3. Ambient temperature and operating voltage range (N.O. side Room temperature) 120 20A 100 30A 80 40A 60 40 Coil applied voltage, VDC 60 Switching voltage, VDC Maximum allowable ambient temperature, C (Standard type) 150 140 50 40 30 20 105 cycle line 40 20 90 35 30 25 20 10 10 100 110 120 130 140 Applied coil voltage, %V 150 0 5 Actual value (Max. 105 cycle) 0 10 Operating voltage range 15 20 30 40 Switching current, A 0 -40 -20 50 Pick-up voltage (Cold start) 0 20 40 60 8085 100 120 Ambient temperature, C Assumption: * Maximum mean coil temperature: 180C * Curves are based on 1.4W (Nominal power consumption of the unsupprressed coil at nominal voltage) 4. Distribution of pick-up and drop-out voltage 5. Distribution of operate and release time Sample: CB1-P-12V, 42pcs. Sample: CB1-P-12V, 42pcs. 60 60 40 30 40 30 20 20 10 10 0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Voltage, V Operate and release time, ms Change of pick-up and drop-out voltage 6. Electrical life test (Motor free) Sample: CB1F-12V, 5pcs. Load: 25A 14V DC, motor free actual load Operating frequency: ON 1s, OFF 9s Ambient temperature: Room temperature Relay harness Motor 5 Pick-up voltage Load current waveform Max. X Min. 4 3 Drop-out voltage 2 Max. X Min. 40 3 20 10 1 0 Observation of load waveform with current probe and digital oscilloscope 50 Contact resistance, m Pick-up and drop-out voltage, V Tested sample M Change of contact resistance 6 Circuit 14V DC Operate time Release time 50 Quantity, n Quantity, n 50 Pick-up voltage Drop-out voltage 0 0 5 No. of operations, x 104 10 0 5 Max. X Min. 10 No. of operations, x 104 Inrush current: 80A, Steady current: 25A 20A 200ms 4 ds_61202_en_cb: 010113J CB CB RELAYS (High contact capacity type) 1. Allowable ambient temperature 2. Ambient temperature and operating voltage range (High resistant/high contact capacity type) 3. Distribution of pick-up and drop-out voltage Sample: CB1aHF-12V, 53pcs. 120 30A 100 40A 80 50A 60 70 35 60 30 50 25 20 100 110 120 130 140 Applied coil voltage, %V 40 30 20 10 5 70A 20 90 Operating voltage range Pick-up voltage Drop-out voltage 15 60A 40 40 Quantity, n 150 140 Coil applied voltage, VDC Maximum allowable ambient temperature, C (High contact capacity/standard type) 0 -40 -20 150 10 Pick-up voltage (Cold start) 0 20 40 60 80 85 100 120 Ambient temperature, C 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Voltage, V Assumption: * Maximum mean coil temperature: 180C * Curves are based on 1.4W (Nominal power consumption of the unsupprressed coil at nominal voltage) 4. Distribution of operate and release time 5. Contact resistance Sample: CB1aHF-12V, 53pcs. Sample: CB1aHF-12V, 53pcs. (By voltage drop 6V DC 1A) 70 10 60 Operate time Quantity, n 8 6 50 40 30 4 20 Release time 2 0 10 8 10 12 0 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 14 Resistance, m Coil voltage, V Change of pick-up and drop-out voltage Sample: CB1aH-12V, 3pcs. Load: Inrush current: 64A/Steady current: 35A Fan motor actual load (motor free) 12V DC Operating frequency: ON 3s, OFF 7s Ambient temperature: Room temperature Circuit 3s 7s 10s Change of contact resistance 50 10 Pick-up and drop-out voltage, V 6. Electrical life test (Motor free) 9 8 7 6 Pick-up voltage 5 Max. X Min. 4 Drop-out voltage 3 Max. X Min. 2 1 0 0 5 No. of operations, x 10 10 4 Contact resistance, m Operate and release time, ms 12 40 30 20 Max. 10 X Min. 0 0 5 10 No. of operations, x 104 M Load current waveform Inrush current: 64A, Steady current: 35A 10A 500ms ds_61202_en_cb: 010113J 5 CB DIMENSIONS (mm inch) CAD Data Data from our Web site. Download CAD 1. PC board type External dimensions CAD Data Schematic (Bottom view) 1 Form A 86 25.0 .984 30 87 85 4.5 .177 Including resistor type also available 1.0 .039 2.15 6.3 .085 .248 26.0 1.024 22.0 .866 1 Form C 86 30 87a 87 85 86 0.8 .031 8.4 .331 16.8 .661 87a 30 Including resistor type also available PC board pattern (Bottom view) 87 85 8 .315 8.4 17.9 .331 .705 2.6 .102 4(or5)x2.6 4(or5)x.102 1 Form C type only 86 8.4 .331 87a 30 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: General tolerance 0.1 .004 0.2 .008 0.3 .012 4(or5)x1.4 4(or5)x.055 87 16.8 .661 85 8.0 .315 8.4 .331 17.9 .705 1 Form C type only Tolerance: 0.1 .004 2. Plug-in type CAD Data External dimensions Schematic (Bottom view) 1 Form A 86 25.0 .984 30 87 85 4.0 11.0.157 .433 Including resistor type also available 5x6.3 5x.248 26.0 1.024 1.7 dia. .067 dia. 22.0 .866 0.8 .031 87a 87 Including resistor type also available 87 8 .315 8.4 .331 17.9 .705 16.8 .661 2.6 .102 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 6 85 87a 30 85 86 30 8.4 .331 86 1 Form C General tolerance 0.1 .004 0.2 .008 0.3 .012 ds_61202_en_cb: 010113J CB 3. Bracket type External dimensions CAD Data 16.0 .630 5.40.1 dia. .213.004 Schematic (Bottom view) 1 Form A 4.00.1 .157.004 1.7 .067 86 30 6.0 16.0 .236 .630 87 85 Including resistor type also available 1 Form C 25.0 .984 86 30 4.0 11.0.157 .433 85 5x6.3 5x.248 26.0 1.024 22.0 .866 87a 87 Including resistor type also available 0.8 .031 30 86 85 87a* 17.9 .705 8.4 .331 87 8 .315 2.6 .102 16.8 .661 8.4 .331 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: General tolerance 0.1 .004 0.2 .008 0.3 .012 4. High contact capacity type (1 Form A) (Plug-in type) CAD Data External dimensions Schematic (Bottom view) 86 30 25.5 1.004 85 87 Including resistor type also available 4.0 .157 11.0 .433 15.0 .591 5.8 .228 2x6.3 0.08 2x.248 .003 26.5 1.043 4x1.7 dia. hole 4x.067 dia. hole 2x9.50.08 2x.374.003 8.4 .331 0.8 .031 86 1.2 .047 16.8 .661 30 87 85 8.4 .331 17.9 .705 2.6 .102 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: ds_61202_en_cb: 010113J 22.0 .866 General tolerance 0.1 .004 0.2 .008 0.3 .012 7 CB 5. High contact capacity type (1 Form A) (PC board type) CAD Data External dimensions Schematic (Bottom view) 86 30 25.5 1.004 1.0 .039 1.0 .039 4.5 .177 5.3 .209 3x1.7 3x.067 87 85 4.5 .177 3x1.7 3x.067 5.3 .209 2x2.15 9.5 6.3 2x.085 .374 .248 26.5 1.043 Sealed by epoxy resin 2x0.8 2x.031 2x1.2 2x.047 1.0 .039 A* 9.5 .374 22.0 .866 85 1.4 .055 30 87 7.8 .307 8.4 .331 16.8 .661 85 32.15 3x.085 8.4 .331 3.9 3.9 .154 .154 17.9 .705 3x2.15 3x.085 2.6 .102 86 3x1.8 3x.071 3.9 .154 16.8 3.9 .661 .154 87 PC board pattern (Bottom view) 8.4 .331 86 30 Including resistor type also available 2.6 .102 7.8 .307 8.4 .331 17.9 .705 3x1.8 3x.071 Tolerance: 0.1 .004 * Intervals between terminals is measured at A surface level. Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: General tolerance 0.1 .004 0.2 .008 0.3 .012 NOTES 1. Soldering Max. 350C 662F (solder temperature), within 3 seconds (soldering time) The effect on the relay depends on the actual PC board used. Please verify the PC board to be used. 2. Usage, transport and storage conditions 1) Ambient temperature, humidity, and atmospheric pressure during usage, transport, and storage of the relay: (1) Temperature: -40 to +85C -40 to +185F (Standard type) -40 to +125C -40 to +257F (High heatresistant type) (2) Humidity: 2 to 85% RH (Avoid freezing and condensation.) (3) Atmospheric pressure: 86 to 106 kPa The humidity range varies with the temperature. Use within the range indicated in the graph below. (Temperature and humidity range for usage, transport, and storage) Humidity, %RH 85 Tolerance range (Avoid freezing when used at temperatures lower than 0C 32F) 5 2 -40 -40 (Avoid condensation when used at temperatures higher than 0C 32F) 0 +32 Temperature, C F 85 +185 110 125 +230 +257 For Cautions for Use, see Relay Technical Information. 8 ds_61202_en_cb: 010113J