AUTOMOTIVE POWER RELAYS -- SMALL SIZE, LIGHT WEIGHT AND COMPLETELY WATER TIGHT CA-RELAYS FEATURES 1. Small size and light weight For space saving, the outside dimensions of the main body are reduced to be 21.5 mm (length) x 14.4 mm (width) x 37 mm (height) (.846 x .567 x 1.457 inch). and the weight is also reduced to be approx. 19 g .67 oz (Direct coupling 1 Form A, 1 Form B type) 2. Water tightness Since the relays comply with the water tightness standards, JIS D 0203, water and dust will not enter the relay even if it is mounted in the engine area. 3. Low operaing power (1.4W) type is available (1 Form A, 1 Form B) 4. Since the terminal arrangement complies with JIS D5011 B4-M1, commercial connectors are available for these types of relays. SPECIFICATIONS Contact Type Arrangement Initial contact resistance, max. (By voltage drop 6 V DC 1A) Contact material Contact voltage drop, max. Nominal switching capacity (resistive load) Max. switching voltage Rating Max. switching current Max. carrying current Nominal operating power Mechanical (at 120 cpm) 20 A Expected (1.4 W, 1.8 W type) life (min. Electrical operations) 30 A (1.8 W type) 1 Form A 12 V DC 1 Form B 1 Form C 24 V DC 1 Form C 50 m ohm silver alloy 0.3 V After electrical life test, 0.3 V 0.4 V 0.4 V by voltage drop After electrical life test, After electrical life test, After electrical life test, 12 V DC 20 A by voltage drop by voltage drop by voltage drop (1.4 W type), 12 V DC 20 A 12 V DC 20 A 24 V DC 10 A 12 V DC 30 A (1.8 W type) 20 A 12 V DC (1.4 W type) 10 A 24 V DC 20 A 12 V DC 30 A 12 V DC (ON: 2s, OFF: 2s) (1.8 W type) 16 V 15 V 30 V 120 A (1.4 W type) 120 A 100 A 50 A (Inrush current) 150 A (1.8 W type) 20 A continuous (1.4 W type) 20 A continuous 20 A continuous 10 A continuous 30 A for 1 min (1.8 W type) 1.4 W / 1.8 W 1.8 W 5x105 106 105 (ON: 2s, OFF: 2s) 2x104 (ON: 3s, OFF: 15s) 105 (ON 2s, OFF 2s) 105 383 CA Characteristics (at 20C 68F ) Type 12 V DC 24 V DC 15 cpm 1.4 W type: at nominal load 15 cpm (at nominal load) 1.8 W type: at 20 A Min. 10 at 500 V DC 500 V rms for 1 min. 500 V rms for 1 min. ( Max. operating speed Initial insulation resistance Between open contacts Between contacts and coil Operate time*2 (at nominal voltage) Initial breakdown voltage*1 ) Release time (without diode)*2 (at nominal voltage) Functional Shock resistance Functional*5 Destructive Conditions for operation, Ambient transport and storage*6 temp. (Not freezing and condensing Humidity low temperature) Water-proof standard Unit weight Max. 10 ms Max. 10 ms at 20C Max. 10 ms Min. 200 m/s2 {20 G} Destructive*4 Vibration resistance Max. 10 ms at 20C Min. 100 m/s2 {10 G} Min. 1,000 m/s2 {100 G} Rubber bracket A type: Min. 100 m/s2 {10 G}, 50 to 500Hz Direct coupling type or Screw-mounting type: Min. 44.1 m/s2 {4.5 G}, 10 to 100 Hz Rubber bracket A type: Min. 100m/s2 {10 G},50 to 500Hz Direct coupling type or Screw-mounting type: Min. 44.1 m/s2 {4.5 G}, 10 to 100 Hz Min. 100 m/s2 {10 G}*3 Min. 44.1 m/s2 {4.5 G}, 10 to 100Hz Min. 44.1 m/s2 {4.5 G}, 10 to 500Hz -30C to +80C -22F to +176F 5 to 85% R.H. Plastic sealed type: JIS DO203S2, Dust cover type: JIS DO203R2 JIS DO203S2 Rubber bracket A type : 23 g .81 oz Direct coupling type or Screw-mounting type: 31 g 1.09 oz 19 g .67 oz Electrical life (min. operation) Motor load Halogen lamp load (operating frequency ON: 2 s, OFF: 2 s) (operating frequency ON: 1 s, OFF: 14 s) 105, 20 A 12 V DC 105, 20 A 12 V DC 105, 20 A 12 V DC 105, 20 A 12 V DC 105, 10 A 24 V DC 105, 6 A 24 V DC Nominal coil voltage, V DC 1 Form A, 1 Form B 12 12 24 1 Form C Remarks *4 Half-wave pulse of sine wave: 6ms *5 Detection time: 10s *6 Refer to 5. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 61) * Specifications will vary with foreign standards certification ratings. *1 Detection current: 10 mA *2 Excluding contact bounce time *3 Half-wave pulse of sine wave: 11ms; detection time: 10s ORDERING INFORMATION CA Contact arrangement 1a: 1 Form A 1b: 1 Form B 1 : 1 Form C 1a Protective construction Nil: Plastic sealed type F: Dust cover type F S 12 V Nominal operating power A 5 Coil voltage (DC) Mounting method Nil: Standard type (1.8 W) 12 V A: Rubber bracket A type S: Low operating power type (1.4 W) 24 V (1 Form C only) A: (1 Form A, 1 Form B) (1 Form A, 1 Form B) N: Screw mounting type C: Direct coupling type Classification by type Nil: 1 Form C 5: 1 Form A or 1 Form B Notes: 1. Type with resistor/diode inside are available as options. Please consulf our sales office. 2. Standard packing: Carton: 20 pcs. Case: 200 pcs. COIL DATA 1) Standard type Contact arrangement 1 Form A 1 Form B 1 Form C 384 Mounting type Plastic sealed type Dust cover type Nominal Pick-up voltage, voltage, V DC (max.) V DC (at 20C 68F) Drop-out voltage, V DC (min.) (at 20C 68F) Nominal operating current, mA (10%) (at 20C 68F) Coil resistance, (10%) (at 20C 68F) Nominal operating power, mW (at 20C 68F) Usable voltage range, V DC Rabber bracket A CA1a-12V-A-5 CA1aF-12V-A-5 12 8 0.6 to 6 150 80 1.8 10 to 16 Screw-mounting CA1a-12V-N-5 CA1aF-12V-N-5 12 8 0.6 to 6 150 80 1.8 10 to 16 Direct coupling 10 to 16 CA1a-12V-C-5 CA1aF-12V-C-5 12 8 0.6 to 6 150 80 1.8 Rabber bracket A CA1b-12V-A-5 CA1bF-12V-A-5 12 8 0.6 to 6 150 80 1.8 10 to 16 Screw-mounting CA1b-12V-N-5 CA1bF-12V-N-5 12 8 0.6 to 6 150 80 1.8 10 to 16 Direct coupling CA1b-12V-C-5 CA1bF-12V-C-5 12 8 0.6 to 6 150 80 1.8 10 to 16 Screw-mounting CA1-DC12V-N - 12 8 0.6 150 80 1.8 10 to 15 Direct coupling CA1-DC12V-C - 12 8 0.6 150 80 1.8 10 to 15 Screw-mounting CA1-DC24V-N - 24 16 1.2 75 320 1.8 20 to 30 Direct coupling CA1-DC24V-C - 24 16 1.2 75 320 1.8 20 to 30 CA 2) Low operating power type Contact arrangement 1 Form A 1 Form B Drop-out voltage, V DC (min.) (at 20C 68F) Nominal operating current, mA (10%) (at 20C 68F) Coil resistance, (10%) (at 20C 68F) Nominal operating power, mW (at 20C 68F) Usable voltage range, V DC 8 0.6 to 6 120 100 1.4 10 to 16 12 8 0.6 to 6 120 100 1.4 10 to 16 12 8 0.6 to 6 120 100 1.4 10 to 16 CA1bFS-12V-A-5 12 8 0.6 to 6 120 100 1.4 10 to 16 CA1bS-12V-N-5 CA1bFS-12V-N-5 12 8 0.6 to 6 120 100 1.4 10 to 16 CA1bS-12V-C-5 CA1bFS-12V-C-5 12 8 0.6 to 6 120 100 1.4 10 to 16 Nominal Pick-up voltage, voltage, V DC (max.) V DC (at 20C 68F) Plastic sealed type Dust cover type Rabber bracket A CA1aS-12V-A-5 CA1aFS-12V-A-5 12 Screw-mounting CA1aS-12V-N-5 CA1aFS-12V-N-5 Direct coupling CA1aS-12V-C-5 CA1aFS-12V-C-5 Rabber bracket A CA1bS-12V-A-5 Screw-mounting Direct coupling Mounting type mm inch DIMENSIONS 1. 1 Form A/1 Form B Rubber bracket A type SCHEMATIC (Bottom View) 21.5 .846 14.4 .567 2.5 10 .098 .394 1 Form A 1 Form B 15 .591 37 1.457 Including diode type, including load type also available. 17.4 .685 19.5 .768 9 .354 Sealed with epoxy resin Including load (1 Form A) 5.5 .217 Including diode (1 Form C) 15.4 .606 12.4 .488 1.5 .059 2 .079 17 .669 21.5 .846 2. 1 Form A/1 Form B Screw-mounting type 6.5 +0.3 -0 dia. hole .256 +.012 dia. -0 0.8 .031 2.4 .094 6 .236 R10 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 14.4 .567 14 .551 3 .118 2 .079 General tolerance 0.1 .004 0.2 .008 0.3 .012 SCHEMATIC (Bottom View) 1 Form A 1 Form B 17.5 .689 7 .276 Including diode type, including load type also available. 37 1.457 21.5 .846 Sealed with epoxy resin 19.5 .768 9 .354 17.4 .685 Including load (1 Form A) 5.5 .217 Including diode (1 Form C) 15.4 .606 12.4 .488 6 .236 0.8 .031 2.4 .094 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 .012 385 CA 3. 1 Form A/1 Form B Direct coupling type mm inch 21.5 .846 14.4 .567 SCHEMATIC (Bottom View) 1 Form A 1 Form B 37 1.457 Sealed with epoxy resin 19.5 .768 9 .354 Including diode type, including load type also available. 17.4 .685 5.5 .217 15.4 .606 12.4 .488 6 .236 Including load (1 Form A) 0.8 .031 2.4 .094 Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 4. 1 Form C Screw-mounting type Including diode (1 Form C) General tolerance 0.1 .004 0.2 .008 0.3 .012 SCHEMATIC (Bottom View) 6.6 dia. hole .260 dia. 14 .551 R10 4 .157 20 .787 12 .472 Including diode type, including load type also available. 59 28 2.323 1.102 40 1.575 31.2 1.228 28.4 1.118 23.4 .921 0.8 .031 6 .236 9 9 .354 .354 1 Form C 2 .079 Including load (1 Form C) 19.4 .764 Including diode (1 Form A) 5.5 .217 11.4 12.2 .449 .480 2.4 .094 Sealed with epoxy resin Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 5. 1 Form C Direct coupling type General tolerance 0.1 .004 0.2 .008 0.3 .012 SCHEMATIC (Bottom View) 1 Form C 28 1.102 40 1.575 Including diode type, including load type also available. 31.2 1.228 28.4 1.118 23.4 .921 0.8 .031 6 .236 9 9 .354 .354 19.4 .764 5.5 .217 11.4 12.2 .449 .480 2.4 .094 Sealed with epoxy resin Including load (1 Form C) Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: 386 General tolerance 0.1 .004 0.2 .008 0.3 .012 Including diode (1 Form A) CA REFERENCE DATA 1. Coil temperature rise 2. Electrical life test (Motor load) Tested sample: CA1aS-12V-N-5, 5 pcs. Point measured: Inside the coil Contact carrying current: 20A Ambient temperature: Room temperature, 85C 185F Tested sample: CA1a-12V-N-5, 5 pcs. Load: Steady 30A, Inrush 150A, 12V DC Operate frequency: ON 3s, OFF 15s Ambient temperature: Room temperature 140 Temperature rise, C 120 100 85C 185F 80 60 40 Pick-up and drop-out voltage, V 10 Room temperature Contact welding: 0 times Miscontact: 0 times Pick-up voltage 8 Max. X 6 Min. 4 Drop-out voltage Max. X Min. 2 20 0 12 14 16 Coil applied voltage, V 0 0 2 No. of operations, x104 For Cautions for use, see Relay Technical Information (Page 48 to 76). 9/1/2000 All Rights Reserved, (c) Copyright Matsushita Electric Works, 387 Ltd. Go To Online Catalog