CM AUTOMOTIVE MICRO-ISO RELAY 20 .787 CM-RELAYS FEATURES 15 .591 * Small size: 20 mm(L)x15 mm(W)x22 mm(H) .787 inch(L)x.591 inch(L)x.866 inch(H) * Wide line-up PC board and Plug-in type, Resistor and diode inside type * 35 Amp contact Rating, 100,000 Operations (12V type) * Micro-ISO type terminals 22 .866 mm inch SPECIFICATIONS Contact Characteristics Type Arrngement Contact material Initial contact resistance, max. Contact voltage drop, max. Nominal switching capacity Rating (resistive load) Max. switching current Mechanical Expected (at 120 cpm) life Electrical (at rated load) 12 V coil voltage 24 V coil voltage 1 Form A, 1 Form C Silver alloy 15m N.O.: 0.5 V (at 35 A 14 V DC) N.C.: 0.3 V (at 20 A 14 V DC) N.O.: 0.3 V (at 15 A 28 V DC) N.C.: 0.2 V (at 8 A 28 V DC) N.O.: 35 A 14 V DC N.O.: 15 A 28 V DC N.C.: 20 A 14 V DC N.C.: 8 A 28 V DC N.O.: 20 A (14 V DC, at 85C 185F) N.C.: 10 A (14 V DC, at 85C 185F) N.O.: 15 A (28 V DC, at 85C 185F) N.C.: 8 A (14 V DC, at 85C 185F) Initial breakdown voltage*3 Between open contacts Between contacts and coil Operate time*4 (at nominal voltage) (at 20C 85F) Release time*4 (at nominal voltage) (at 20C 85F) Functional*5 Shock resistance Destructive*6 Functional*7 Vibration resistance Destructive*8 Min. 106 Flux-resistant type: Min. 105*1 Sealed type: Min. 5 x 104 Coil Nominal operating power Type Max. operating speed (at nominal switching capacity) Initial insulation resistance*2 1.5 W 1.7 W (Internal resistor type) 1.8 W 2.0 W (Internal resistor type) Conditions for operation, transport and storage*9 (Not freezing and condensing at low temperature) Unit weight Ambient temp. Humidity 24V coil type 12V coil type 15 cpm Min. 20 M (at 500 V DC) 500 Vrms for 1 min. 500 Vrms for 1 min. Max. 10 ms Max. 10 ms Max. 15 ms (with diode) Min. 200 m/s2 {20G} Min. 1,000m/s2 {100G} 10 to 500 Hz, Min. 44.1 m/s2 {4.5 G} 10 to 2,000 Hz, Min. 44.1 m/s2 {4.5 G} -40C to + 85C -40F to + 185F 25 to 85% R.H. Approx. 20g .71oz Remarks * Specifications will vary with foreigh standards certification ratings. *1 At nominal switching capacity, operating frequency: 2s ON, 2s OFF *2 Measurement at same location as "Initial breakdown voltage" section. *3 Detection current: 10mA *4 Excluding contact bounce time. *5 Half-wave pulse of sine wave: 11 ms; detection time: 10 s *6 Half-wave pulse of sine wave: 6 ms *7 Detection time: 10 s TYPICAL APPLICATIONS Automotive system Fan motor, Heater, Tail lump, Air Compressor 376 *8 Time of vibration for each direction; X, Y, Z direction: 4 hours X Y Z *9 Refer to 5. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 61) CM ORDERING INFORMATION CM 1 F R P 12V Contact arrangement Protective construction Classification of types Mounting classification Coil voltage (DC) 1a: 1 Form A 1: 1 Form C Nil: Sealed type F: Flux-resistant type Nil: Standard type D: with diode inside R: with resistor iside Nil: Quick connect type P: PC board type 12 V 24 V Note: Bulk package: 50 pcs.; Case: 200 pcs. TYPES Packing quantity: Inner 50pcs, Outer 200pcs. Contact arrangement 1 Form A 1 Form C Contact arrangement 1 Form A 1 Form C Part No. CM1a-12V CM1aF-12V CM1a-P-12V CM1aF-P-12V CM1-12V CM1F-12V CM1-P-12V CM1F-P-12V Coil voltage Part No. CM1a-24V CM1aF-24V CM1a-P-24V CM1aF-P-24V CM1-24V CM1F-24V CM1-P-24V CM1F-P-24V Coil voltage Mounting classification Protective construction Sealed type Flux-resistant type Sealed type Flux-resistant type Sealed type Flux-resistant type Sealed type Flux-resistant type Quick connect type PC board type 12 V DC Quick connect type PC board type Mounting classification Protective construction Sealed type Flux-resistant type Sealed type Flux-resistant type Sealed type Flux-resistant type Sealed type Flux-resistant type Quick connect type PC board type 24 V DC Quick connect type PC board type COIL DATA (at 20C 68F) Nominal voltage, V DC 12 24 Pick-up voltage, V DC (max.) 3 to 7 6 to 14 Drop-out voltege, V DC (min.) 1.2 to 4.2 2.4 to 8.4 Nominal current, mA (10%) 125 75 Coil resistance, ohm (10%) 96 320 Nominal operating power, W 1.5 1.8 Usable voltage range, V DC 10 to 16 20 to 32 DIMENSIONS mm inch Quick connect type PC board type PC board pattern (Bottom view) 23.0 .906 22.0 .866 Max. 1.2 .047 3.25 .128 4.25 11.0 .167 .433 0.8 .031 4.8 .189 20.0 .787 3-1.5 dia. 3-.059 dia. 2.1 14.0 .083 .551 8.0 .315 85 9.0 .354 30 87a 87 6.3 .248 15.0 .591 2-1.75 dia. 2-.069 dia. 0.8 .031 3.5 .138 A* 2.1 .083 4.8 .189 20.0 .787 Soldering depth Schematic (Bottom view) 85 87 0.8 .031 2.1 15.0 .083 .591 8.0 .315 Resistor if used. 30 2.5 .098 6.3 .248 15.0 .591 9.0 .354 86 4.50.05 .177.002 2.4 +0.1 0 .094+.004 0 80.05 .315.002 1.4 +0.1 0 .055+.004 0 2.7+0.1 0 .106+.004 0 1.4 +0.1 0 .055+.004 0 Resistor if used. 30 87a 0.8 .031 90.05 .354.002 150.05 .591.002 Schematic (Bottom view) 85 87a* 85 87a* 87 30 86 87 86 86 Sealed by epoxy resin 1.0 .039 1.4 +0.1 0 .055+.004 0 +0.1 1.4 +.004 .055 Relay coil Relay coil Sealed by epoxy resin *Not used on 1 Form A type Dimension: Max. 1mm .039 inch: 1 to 3mm .039 to .118 inch: Min. 3mm .118 inch: *Not used on 1 Form A type General tolerance 0.1 .004 0.2 .008 0.3 .012 * Dimensions (thickness and width) of terminal specified in this catalog is measured before pre-soldering. Intervals between terminals is measured at A surface level. 377 CM REFERENCE DATA 1-(1). Coil temperature rise (12V type) 1-(2). Coil temperature rise (24V type) 2-(1). Electrical life test (resistive load) Tested sample: CM1F-12V, 3 pcs. Ambient temperature: 85C 185F Contact carrying current: 20 A, 35 A Tested sample: CM1F-24V, 4 pcs. Ambient temperature: 85C 185F Contact carrying current: 0 A, 15 A Tested sample: CM1F-12V, 6 pcs. Load: N.C.: 20A 14V DC N.O.: 35A 14V DC Operate frequency: ON 2s, OFF 2s 120 120 10 80 20A 60 Pick-up and drop-out voltage, V 100 Temperature rise, C Temperature rise, C 35A 100 80 15A 0A 60 40 40 20 20 12 14 24 16 28 6 Pick-up voltage Max. x Min. 4 Drop-out voltage 0 32 Max. x Min. 0 10 No. of operations, x104 Coil applied voltage, V Coil applied voltage, V 8 2 0 0 Contact welding: 0 times Miscontact: 0 times 2-(2). Electrical life test (Lamp load) Tested sample: CM1aF-R-12V, 6 pcs. Load: 20A 13.5V DC Operate frequency: ON 1s, OFF 14s Pick-up and drop-out voltage, V 10 Circuit: Sample Contact welding: 0 times Miscontact: 0 times 8 6 Pick-up voltage 4 Max. -x Min. 2 Max. -x Min. Drop-out voltage Halogen lamp 0 0 10 No. of operations, x104 For Cautions for use, see Relay Technical Information (Page 48 to 76). 378 9/1/2000 All Rights Reserved, (c) Copyright Matsushita Electric Works, Ltd. Go To Online Catalog