LONG LIFE RELAY UL CSA pending pending NR-RELAYS FEATURES 20 .787 10 .394 10 .394 mm inch * Sealed construction for automatic wave soldering and cleaning * Latching types available * High sensitivity -- TTL direct drive possible * High speed -- Up to 500 cycle/sec. operations * Wide switching range and high welding resistance Gold cobalt (AuCo) contact permits * Wider switching range from low level up to high current: 10 A to 1 A * Higher sticking resistance to inrush current * Stable contact resistance from initial stage throughout life SPECIFICATIONS Characteristics (at 25C 77F) Contact Arrangement Initial contact resistance, max. (By voltage drop 6 V DC 1 A) Initial contact pressure Contact material Sealed type ContactMagnetically Contact sealed type Sealed type N.O. Magnetically Electrostatic contact-coil sealed type capacitance Sealed type N.C. contact-coil Magnetically sealed type Nominal switching capacity Rating (resistive) Expected life (min. operations) Max. switching power Max. switching voltage Max. switching current Min. switching power Mechanical (at 500 cps.) 1 A 20 V DC/ 0.3 A 110 V AC 0.5 A 30 V DC/ 0.1 A 110 V AC 0.25 A 30 V DC/ 0.25 A 30 V AC Electrical (resistive) 0.2 A 24 V DC/ 0.2 A 24 V AC 0.1 A 12 V DC/ 0.1 A 12 V AC 0.1 A 9 V DC/ 0.1 A 9 V AC 1 Form C 60 m Approx. 5 g .18 oz Gold cobalt 3 pF 4 pF 4 pF 5 pF 5 pF 6 pF 1A 20 VDC, 0.3A 110 VAC 33 VA, 20 W 110 V AC, 30 V DC AC 0.3 A, DC 1 A Approx. 100 mV 10A 109 106 (at 1 cps.) 3x106 (at 2 cps.) 5x106 (at 5 cps.) 107 (at 25 cps.) 5x107 (at 50 cps.) 108 (at 100 cps.) Coil (polarized) (at 25C 77F) Minimum operting power Nominal operating power 112 Single side stable 1 coil latching 2 coil latching Single side stable 1 coil latching 2 coil latching 72 to 133 mW 41 to 45 mW 72 to 107 mW 147 to 300 mW 74 to 153 mW 147 to 331 mW Max. operating speed Initial insulation resistance*1 Between live parts and ground Initial Between open breakdown contact voltage*3 Between contact and coil Operate time*4 (at nominal voltage) Release time (without diode)*4 (at nominal voltage) Contact Single side stable bounce 1-coil /2-coil latching time Temperature rise Shock resistance Vibration resistance Functional*5 Destructive*6 Functional*7 Destructive Conditions for opera- Ambient tion, transport and temp. storage*9 (Not freezing and condensing Humidity at low temperature) Unit weight 500 cps. (mechanical) Min. 1000 M at 500 V DC*2 1,000 Vrms 350 Vrms (500 V DC) 1,000 Vrms Max. 3 ms (Approx. 1 ms) Max. 2 ms (Approx. 0.5 ms) Approx. 0.5 ms Approx. 0.3 ms Max. 35C at 0.5 W operating power Max. 65C at 1 W operating power Min. 980 m/s2 {100 G} Min. 980 m/s2 {100 G} 98 m/s2 {10 G}, 10 to 55 Hz at double amplitude of 1.6 mm*8 117.6 m/s2 {12 G}, 10 to 55 Hz at double amplitude of 2 mm -55C to +65C*10 -67F to +149F 5 to 85% R.H. Approx. 7 g .25 oz Remarks * *1 *2 *3 *4 *5 *6 *7 *8 *9 *10 Specifications will vary with foreign standards certification ratings. Measurement at same location as "Initial breakdown voltage" section Min. 500M at 100 V DC between coils of 2 coil latching type Detection current: 10mA, Except for between coils of 2 coil latching type Excluding contact bounce time Half-wave pulse of sine wave: 6ms; detection time: 10s Half-wave pulse of sine wave: 6ms Detection time: 10s Although NR relays are rated at 10 G/55 cps. vibration resistance, they will withstand up to 60 G/2,000 cps., provided they receive additional support such as anchoring to the PC board with epoxy resin. Refer to 5. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 61) Total temperature (ambient temperature plus temperature rise in coil) should not exceed 90C 194F for single side stable, and 105C 221F for latching relays. See Reference Data for determination of coil voltage versus temperature. NR TYPICAL APPLICATIONS Telecommunications equipment, alarm devices, machine tools, NC machines, automatic warehouse control, conveyors, air-conditioners, pressing machines, tex- tile machinery, elevators, control panels, pin-board programmers, parking meters, industrial robots, detectors, annunciators, optical instruments, business machines, time recorders, cash registers, copiers, vending machines, medical equipment. ORDERING INFORMATION EX. NR- H L2 D 12V Types of case Operating function Coil voltage (DC) H: Sealed S: Magnetically sealed Nil: Single side stable L: 1 coil latching L2: 2 coil latching 5, 6, 12, 24, 42 V (Notes) 1. Power types and 1 Form A types are available on request. (Notes) 2. For UL/CSA recognized types, delete "N" at head portion of part No. and add suffix UL/CSA, when ordering. Ex. RSD-12V UL/CSA (Notes) 3. Standard packing Carton: 50 pcs., Case: 500 pcs. TYPES AND COIL DATA (at 25C 77F) Single side stable (NR-SD) Nominal coil voltage, V DC Pick-up voltage, V DC (max.) Drop-out voltage V DC (min.) 5 6 12 24 42 3.5 4.7 9.3 16 28 0.5 0.6 1.2 2.4 4.2 Maximum allowable voltage, V DC (40C 104F) 13 14 28 42 85 Coil resistance, (10%) Nominal operating power, mW Inductance, Henrys 170 220 890 2,000 8,000 147 164 162 288 221 0.050 0.075 0.3 0.66 2.7 1 coil latching (NR-SLD) Nominal coil voltage, V DC Pick-up voltage, V DC (max.) Maximum allowable voltage, V DC (40C 104F) Coil resistance, (10%) Nominal operating power, mW Inductance, Henrys 5 6 12 24 42 3.5 4.3 8.0 17 23 18 20 30 75 110 340 450 1,500 6,000 12,000 74 80 96 96 147 0.12 0.16 0.66 2.4 3.9 Nominal coil voltage, V DC Pick-up voltage, V DC (max.) Maximum allowable voltage, V DC (40C 104F) Nominal operating power, mW Inductance, Henrys 5 6 12 24 42 3.5 4.3 8.0 17.0 23.0 13.0 14.0 26.0 50.0 75.0 Coil resistance, (10%) Set coil Reset coil 170 170 225 225 650 650 2,700 2,700 5,500 5,500 147 160 230 213 321 0.024 0.04 0.14 0.35 0.8 2 coil latching (NR-SL2D) (Note) Maximum allowable operating power: 1000 mW at 25C 77F. DIMENSIONS mm inch 20 .787 10 .394 5 10 .394 2.54 .100 3 .118 2.54 5.1 5.1 5.1 .100 .201 .201 .201 5.1 .201 6 7 Terminal No. 1, 7 4 3 2.54 3.5 .138 Terminal dimensions (Except soldering) Ground terminal .100 2 1.3 DIA. .051 DIA. 1 4 2, 3, 5, 6, ground terminal Thickness Width 0.5 0.6 .020 .024 0.3 0.7 .012 .028 0.5 DIA. .020 DIA. Soldering: 0.3 .012 max. General tolerance: 0.5 .020 Tolerance: 0.2 .008 113 NR DIFFERENCES BETWEEN NR RELAYS AND REED RELAYS "Getter" holes are formed on both pole shoes to obtain uniform contact resistance throughout life. Film-forming phenomena on contacts is thus fully prevented. NR relays Reed relays 1 Form C 20 W (high contact pressure) Single side stable Latching Yes 1 Form A or 1 Form B 5 to 15 W Structure Contact arrangement Contact capacity Operating function "Getter" hole Single side stable No REFERENCE DATA 1.-(2) Contact reliability TEST CONDITION Test sample: NR-SD-24V 54 pcs. Circuits: (A) Following figure with diode (B) Following figure without diode Stop Start R0 24 V DC R54 R0 R1 R1 R2 R2 R52 R3 R53 R53 R54 Item to be checked: Detect with the circuit stopped Circuits: (A) Diode provided: The circuit does not stop throughout 100 million times. (B) Diode not provided: 60 = 2.5 x 10-8 times 2. Coil temperature rise (under saturated condition) Sample: NR-SD-24V, 10 pcs. Contact voltage: 100 mV Contact current: 10A Cycle rate: 50 cps. Detection level: 100 Testing operation: 3x107 m = 1.9 = 2.5x107 = 4.7x107 95% reliability limit: 1.15x107 (Mean time between failure) 100 Coil temperature rise, C 1.-(1) Contact reliability F(t)(%) 99.9 99.0 95.0 90 80 70 60 50 Magnetically sealed type 40 Plastic sealed type 30 20 10 250 70.0 50.0 30.0 500 750 1,000 1,250 Operating power, mW 10.0 5.0 2.0 1.0 0.5 0.2 0.1 1 No. of operations, x10 5 10 (WEIBULL) 3.-(2) Operate time including bounce time (2 coil latching) 4. Release time including bounce time (Single side stable) 3.0 3.0 2.5 2.5 2.5 2.0 1.5 Max. 1.0 Release time, ms 3.0 Operate time, ms Operate time, ms 3.-(1) Operate time including bounce time (Single side stable) 7 2.0 1.5 2.0 1.5 1.0 1.0 Max. x Min. 0.5 0 60 100 140 180 0.5 220 Coil applied voltage, %V 114 Max. 0 60 100 140 x Min. 180 0.5 x Min. 220 Coil applied voltage, %V 0 60 100 140 180 220 Coil applied voltage, %V NR 5.-(1) Leaving at high temperature (Change of pick-up and drop-out voltages) 5.-(2) Leaving at high temperature (Change of contact resistance) Tested sample: NR-SD-24V, 30 pcs. Condition: Deenergized leaving at 90C 194F (constant temperature) Tested sample: NR-SD-24V, 30 pcs. Condition: Deenergized leaving at 90C 194F (constant temperature) SG(Signal generator) 1,000 20 B N.O. Pick-up voltage Max. 14 12 x 10 Min. 8 Drop out voltage Max. N.C. side contact N.O. side contact N.C. 100 Min. Min. 4 Min. 1,000 Time, hr 100 1,500 1,000 -100 -50 5 10,000 7. Contact sticking resistance TEST CONDITION 10 50 100 Frequency, MHz Time, hr 8. Distribution of contact resistance TEST RESULT The purpose of this test was to confirm contact sticking resistance and contact stability against coil ripples. Tested Sample: NR-SD-24V, 10 pcs. Test method: Following coil ripples were applied. Test period: 500 hours 24 V DC 100 Hz 7 V DC Tested sample: NR-SD-24V (WG type) 105 pcs. No occurance of sticking was observed. Contact resistance: Fig. 1 NR-SD-24V: 29 m to 30.4 m Contact resistance m 500 50 Max. 50 x 2 50 Isolation loss between A and B is measured. Max. x = 24.2 m 3 = 9.27 m 50 100 50 Max. x Min. Quantity 6 500 Isolation, dB 16 Contact resistance, m A 18 Voltage, V 6. High frequency characteristics Tested sample: NR-SD-24V Tested condition: 40 30 20 10 100 1,000 Energization time, Hr Fig. 1 10 In actual application, above coil ripples should be avoided and use of a capacitor in the circuit is recommended to keep the ripple factor below 5%. 9.-(1) Rate of change in pick-up and drop-out voltage (Single side stable) 9.-(2) Rate of change in pick-up voltage (2 coil latching) 10 20 30 40 50 Contact resistance, m 10.-(1) Mechanical life (Change of pick-up and drop-out V) Tested Sample: NR-SD-24V, 10 pcs. Operation frequency: 500 cps 140 120 Pick-up voltage 100 80 160 140 120 100 Pick-up voltage 80 60 60 40 40 20 20 -40 -20 0 20 40 60 80 100 -30 -10 10 30 50 70 90 Ambient temperature, C Tested Sample: NR-SD-24V, 10 pcs. Operation frequency: 500 cps Tested sample: NR-SD-24V, 10 pcs. 10.0 5.0 50 40 Max. 30 Min. 20 10 2.0 1.0 0.5 0.2 0.1 1,000 10,000 No. of operations, x104 100,000 Drop-out Voltage 5 Max. 1,000 : 1.85x106 : 1.65x106 : 5.64x104 (Weibull probability paper) 1 10,000 100,000 No. of operations, x104 Contact resistance, m Contact resistance, m 60 Min. Tested Sample: NR-SD-24V, 10 pcs. Load: 60 mA 24 V DC resistive load Frequency: 50 cps 70.0 50.0 30.0 70 Max. 11.-(2) Electrical life F(t)(%) 99.9 99.0 95.0 N.C. side N.O. side Pick-up Voltage 10 -40 -20 0 20 40 60 80 100 -30 -10 10 30 50 70 90 Ambient temperature, C 11.-(1) Electrical life (1 A 20 V DC resistive load) 80 15 Min. 10.-(2) Mechanical life (Change of contact resistance) 90 Pick-up/drop-out Voltage, V 180 Drop-out voltage 160 Rate of change, % Rate of change, % 180 5 No. of operations, x104 10 N.C. side N.O. side 150 100 50 100 1,000 1,0000 No. of operations, x104 115 NR 11.-(3) Electrical life 11.-(4)Electrical life (327 mA 24 V DC relay coil load) Tested Sample: NR-SD-12V, 10 pcs. Load: 54 mA 12 V DC inductive load with diode protection (4 relay coils in parallel of NR-SD-12V) Frequency: 50 cps Tested sample: NR-SD-24V, 5 pcs. Condition: HP2-DC24x6 pcs. in parallel, diode protector provided NR relay contact Max. 24 V DC 16 L1 12 Max. x Min. 8 Drop-out voltage Max. x Min. 4 Min. 1,000 0 10,000 No. of operations, x10 100 4 200 40 Max. x 20 Min. 200 300 14. Influence of adjacent mounting Contact resistance: Fig. 1 All samples were measured less than 100 m in contact resistance throughout this test. mm inch Distance 0 5 10 15 (0) (.197) (.394) (.591) Type Magnetically 5% 1% 0 0 shielded type Sealed type -- 10% 6% 2% 15. Resistive load test TEST CONDITION Tested Sample: NR-SD-24V, 10 pcs. Load: 1 A 20 V DC Resistive Cycle rate: 1.4 cps. Contact resistance in life test 6 8 10 12 14 16 Hour 500 N.C. N.O. 100 80 Max. 60 40 Max. Min. 20 10 1,000 2,000 100 Exposure time, hr Contact resistance, m 4 Contact resistance, m 100 2 N.C. N.O. Max. 100 Max. Mean value of N.O. Mean value of N.C. Min. Min. 50 20 1 2 5 10 15 No. of operations, x106 APPLICATION HINTS Contact protection circuit When using NR relays in inductive load circuits, a contact protection circuit is recommended. Examples: CR CR Relay contact S Diode S S r r c L L L c L : Inductive load 1. r = more than 20 to 30 ohms 2. In an AC circuit impedance of L is to be somewhat smaller than impedance of r and c. 116 L6 No. of operations, x104 TEST RESULT Thermal EMF, V L5 60 100 Tested Sample: NR-SD-24V, 30 pcs. Ambient temperature: 80C 176F Humidity: less than 50% R.H. Exposure time: 2,000 hours with relays deenergized. 200 L4 80 300 13. High temperature test TEST CONDITION Tested Sample: NR-SD-12V, 5 pcs. Coil applied V: 12 V DC Ambient atmosphere: 25C 77F, 60% RH L3 L1~L6: HP2-DC24V x 6 pcs. in parallel Diode protector provided 100 No. of operations, x104 12. Thermal electro motive force L2 Pick-up voltage Contact resistance, m 100 Pick-up/drop-out voltage, V Contact resistance, m 1,000 Can be used for both AC and DC circuits. Use 500 to 1000 ohms for r and 0.1 F to 0.2 F 200 V for c in a general 12 to 24 V load circuit. For DC circuits only. NR The following is life data under our HP2 relay load. Contact voltage 6 V DC 12 V DC 24 V DC 100 V DC 24 V DC 100 V DC 200 V DC Contact current 232 mA 106 mA 54 mA 15 mA 80 mA 20 mA 10 mA Contact protection circuit 0.2 F + 1k or diode 0.2 F + 1k or diode 0.1 F + 1k or diode 0.1 F + 1k or diode 0.2 F + 1k 0.1 F + 1k or varistor 0.1 F + 1k Operating speed 2 op./s 2 op./s 2 op./s 2 op./s 2 op./s 2 op./s 2 op./s Expected life, min. op. 3x107 3x107 3x107 2x107 3x107 2x107 2x107 (Notes) 1. When inrush current occurs in the capacitor load circuit or incandescent lamp load circuit, reduce it to less than 5 A. Electrical life of "AuCo" contact types is 10,000 operations in a 5 A inrush current circuit. 2. When 5 A to 10 A inrush current occurs in the capacitor load circuit or incandescent lamp load circuit, the use of power types is recommended. 2 coil latching types A) The circuit at right is recommended when using one coil for latching and the other coil for reset. NR relays are sensitive enough to be operated by the discharge of energy accumulated in the inner-coil capacitance. The use of a diode of over 200 V breakdown will prevent misoperation from this source. In order to maintain the insulation between the two coils, connection of the terminal No. 3 and No. 6 or the terminal No. 2 and No. 5 is recommended, as shown in the right figure. Rectifiers should be inserted in this circuit when the nominal coil voltage of the NR relay is more than 24 V DC. B) No damage will occur to the coil of either the one or two coil latching types even if the operating voltage is as much as 2 or 3 times the nominal coil voltage. C) If separate pulses are applied to each coil of the 2 coil latching types, the first pulse will operate when the pulses are of equal voltage. When voltages differ the higher voltage will cause operation provided the voltage difference is greater than the measured pick-up voltage. Voltage difference on the coils will reduce contact pressure proportionately. Continuous bias voltage after an operating pulse lowers contact pressure and vibration resistance. Ripple factor Coils should be operated on pure DC. Rectified AC may cause changes in the pick-up/drop-out characteristics because of the ripple factor. Use of a capacitor in the circuit is recommended to keep the ripple factor below 5%. Pulsating component coil bias voltage coil To calculate the ripple factor R : relay Ripple factor (%) = R E min. E max. E mean DC component capacitor (ripple filter) E max. - E min. x 100% E mean E max. = max. value of pulsating component E min. = min. value of pulsating component E mean - average value DC component When designing NR relay circuits Care should be taken when designing relay circuits since the response of the relay is so fast that bouncing or chattering from conventional relays in the circuit may cause false operation. When using long lead wires When long wires (as long as 100 m or more) are to be used, the use of resistance (10 to 50 ) in series with the contact is required in order to eliminate the effect of the possible inrush current due to the stray capacitance existing between the two wires or between the wire and ground. + (Equivalent circuit) Contact of NR relay 10 to 50 Lead wire (100 to 300 m) Energy accumulated in static capacitance 117 NR AC operation of latching relays When using circuits such as those at the right, avoid continued or extended latching or resetting power input. Latching switch Reset switch Latching switch Reset switch 2 5 6 1 coil bistable type Capacitor discharge operation of latching types When operating latching types by discharge of a capacitor, more reliable operation can be expected if the time to reach pick-up voltage is greater than 2 ms at 5 to 10 F: (24 V type). 3 2 coil bistable type (V) Specified Pick - up voltage NR relay coil C SW t more than 2 ms NR relay contact C 5 2 6 3 C Flicker circuit Automatic coil circuit interruption Misoperation may occur in self-operated cutoff circuits such as shown at right. This can be avoided by adding a resistor and capacitor and increasing the pick-up voltage to above that specified. In a timer circuit, step-pulse voltage from PUT (Programmable Unijunction Transistor) or SBS (Silicon Bilateral Switch) is recommended. Residual voltage When single side stable types or latching types are driven by transistor or UJT, residual voltage is sometimes applied to the Coil voltage wave form SW V NR relay contact NR relay coil T (Time) coils and decreases contact pressure at N.O. side even if the transistor or UJT are in OFF condition. As a result, characteris- Short circuit prevention between N.C. and N.O. The separation of loads or insertion of a resistor for circuit protection are recommended for the circuits where large current flows due to arcing. (See Fig. 1). NR relay coil tics of relays may be harmed. Design your circuits in principle to make such residual voltage zero. Load separation Load N.C. Load COM N.C. COM N.O. N.O. Load Fig. 1 118 NR ACCESSORIES mm inch PC board terminal sockets (with hold-down clip) PC board pattern (Copper-side view) 10 .394 0.3 .012 1 7 2 6 9.9 .390 6.15 .242 20.9 .823 R-PS 8-1.5 to 1.6 dia. 8-.059 to .063 dia. 2.4 .094 2.7 .106 7.4 .291 E 3 5.0 .197 5 4.4 .173 4 Terminal width: 1.3 .051 Terminal thickness: 1.2 .047 General tolerance: 0.5 .020 Tolerance: 0.2 .008 For Cautions for Use, see Relay Technical Information (Page 48 to 76). 9/1/2000 All Rights Reserved, (c) Copyright Matsushita Electric Works, 119 Ltd. Go To Online Catalog