NR-HD-12

UL pending CSA pending LONG LIFE RELAY 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 µA to 1 A • Higher sticking resistance to inrush current • Stable contact resistance from initial stage throughout life SPECIFICATIONS 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 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 mΩ 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 10µA 109 106 (at 1 cps.) 3×106 (at 2 cps.) 5×106 (at 5 cps.) 107 (at 25 cps.) 5×107 (at 50 cps.) 108 (at 100 cps.) Characteristics (at 25°C 77°F) 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 Functional*5 Destructive*6 Functional*7 Destructive 500 cps. (mechanical) Min. 1000 MΩ 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. 35°C at 0.5 W operating power Max. 65°C 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 –55°C to +65°C*10 –67°F to +149°F 5 to 85% R.H. Approx. 7 g .25 oz Rating (resistive) Vibration resistance Expected life (min. operations) Conditions for opera- Ambient tion, transport and temp. storage*9 (Not freezing and condensing Humidity at low temperature) Unit weight Remarks * *1 *2 *3 *4 *5 *6 *7 *8 Coil (polarized) (at 25°C 77°F) Minimum operting power 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 *9 *10 Nominal operating power Specifications will vary with foreign standards certification ratings. Measurement at same location as "Initial breakdown voltage" section Min. 500MΩ 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: 10µs Half-wave pulse of sine wave: 6ms Detection time: 10µs 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 90°C 194°F for single side stable, and 105°C 221°F for latching relays. See Reference Data for determination of coil voltage versus temperature. 112 NR TYPICAL APPLICATIONS Telecommunications equipment, alarm devices, machine tools, NC machines, automatic warehouse control, conveyors, air-conditioners, pressing machines, textile 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. NRH L2 D 12V Types of case H: Sealed S: Magnetically sealed Operating function Nil: Single side stable L: 1 coil latching L2: 2 coil latching Coil voltage (DC) 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 25°C 77°F) Single side stable (NR-SD) Nominal coil voltage, V DC 5 6 12 24 42 Pick-up voltage, V DC (max.) 3.5 4.7 9.3 16 28 Drop-out voltage V DC (min.) 0.5 0.6 1.2 2.4 4.2 Maximum allowable voltage, V DC (40°C 104°F) 13 14 28 42 85 Coil resistance, Ω (±10%) 170 220 890 2,000 8,000 Nominal operating power, mW 147 164 162 288 221 Inductance, Henrys 0.050 0.075 0.3 0.66 2.7 1 coil latching (NR-SLD) Nominal coil voltage, V DC 5 6 12 24 42 Pick-up voltage, V DC (max.) 3.5 4.3 8.0 17 23 Maximum allowable voltage, V DC (40°C 104°F) 18 20 30 75 110 Coil resistance, Ω (±10%) 340 450 1,500 6,000 12,000 Nominal operating power, mW 74 80 96 96 147 Inductance, Henrys 0.12 0.16 0.66 2.4 3.9 2 coil latching (NR-SL2D) Nominal coil voltage, V DC 5 6 12 24 42 Pick-up voltage, V DC (max.) 3.5 4.3 8.0 17.0 23.0 Maximum allowable voltage, V DC (40°C 104°F) 13.0 14.0 26.0 50.0 75.0 Coil resistance, Ω (±10%) Set coil Reset coil 170 170 225 225 650 650 2,700 2,700 5,500 5,500 Nominal operating power, mW 147 160 230 213 321 Inductance, Henrys 0.024 0.04 0.14 0.35 0.8 (Note) Maximum allowable operating power: 1000 mW at 25°C 77°F. DIMENSIONS 20 .787 10 .394 2.54 .100 Ground terminal 5 10 .394 3.5 .138 2.54 5.1 5.1 5.1 .100 .201 .201 .201 5.1 .201 6 7 mm inch Terminal dimensions (Except soldering) Terminal No. 1, 7 Thickness Width 0.5 0.6 .020 .024 0.3 0.7 .012 .028 0.5 DIA. .020 DIA. 3 .118 4 3 2.54 .100 2 1.3 DIA. .051 DIA. 1 4 2, 3, 5, 6, ground terminal Soldering: 0.3 .012 max. General tolerance: ±0.5 ±.020 Tolerance: ±0.2 ±.008 113 NR DIFFERENCES BETWEEN NR RELAYS AND REED RELAYS NR relays Reed relays Structure "Getter" holes are formed on both pole shoes to obtain uniform contact resistance throughout life. Film-forming phenomena on contacts is thus fully prevented. Contact arrangement Contact capacity Operating function "Getter" hole 1 Form C 20 W (high contact pressure) Single side stable Latching Yes 1 Form A or 1 Form B 5 to 15 W Single side stable No REFERENCE DATA 1.-(1) Contact reliability Test sample: NR-SD-24V 54 pcs. Circuits: (A) Following figure with diode (B) Following figure without diode Start Stop R0 24 V DC R54 R2 R1 R2 R3 R52 R53 R53 R54 1.-(2) Contact reliability TEST CONDITION Sample: NR-SD-24V, 10 pcs. Contact voltage: 100 mV Contact current: 10µA Cycle rate: 50 cps. Detection level: 100 Ω Testing operation: 3×107 m = 1.9 σ = 2.5×107 µ = 4.7×107 95% reliability limit: 1.15×107 (Mean time between failure) F(t)(%) 99.9 99.0 95.0 70.0 50.0 30.0 10.0 5.0 2.0 1.0 0.5 0.2 0.1 1 No. of operations, ×10 7 2. Coil temperature rise (under saturated condition) 100 Coil temperature rise, °C 90 80 70 60 50 40 30 20 10 250 500 750 1,000 1,250 Plastic sealed type Magnetically sealed type R0 R1 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: λ60 = 2.5 × 10-8 times Operating power, mW 5 10 (WEIBULL) 3.-(1) Operate time including bounce time (Single side stable) 3.0 2.5 Operate time, ms 3.-(2) Operate time including bounce time (2 coil latching) 3.0 2.5 Operate time, ms 2.0 1.5 1.0 0.5 0 Max. x Min. 180 4. Release time including bounce time (Single side stable) 3.0 2.5 2.0 1.5 1.0 0.5 x Min. 0 2.0 1.5 1.0 0.5 0 Max. x Min. Release time, ms Max. 60 100 140 180 220 60 100 140 220 60 100 140 180 220 Coil applied voltage, %V Coil applied voltage, %V Coil applied voltage, %V 114 NR 5.-(1) Leaving at high temperature (Change of pick-up and drop-out voltages) Tested sample: NR-SD-24V, 30 pcs. Condition: Deenergized leaving at 90°C 194°F (constant temperature) 20 18 16 Voltage, V Pick-up voltage 14 12 10 8 6 4 2 500 1,000 Time, hr Min. 100 1,000 Time, hr 10,000 Drop out voltage Max. x Max. x Min. 5.-(2) Leaving at high temperature (Change of contact resistance) Tested sample: NR-SD-24V, 30 pcs. Condition: Deenergized leaving at 90°C 194°F (constant temperature) 1,000 Contact resistance, mΩ 500 N.C. side contact N.O. side contact 6. High frequency characteristics Tested sample: NR-SD-24V Tested condition: SG(Signal generator) A B N.O. N.C. 50Ω 50Ω Max. 100 50 Max. Isolation, dB Min. Min. –100 –50 Isolation loss between A and B is measured. 1,500 5 10 50 100 Frequency, MHz 7. Contact sticking resistance TEST CONDITION 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 8. Distribution of contact resistance TEST RESULT No occurance of sticking was observed. Contact resistance: Fig. 1 NR-SD-24V: 29 mΩ to 30.4 mΩ Contact resistance mΩ 50 100 Quantity 40 30 20 10 100 1,000 Energization time, Hr Fig. 1 10 50 Max. x Min. Tested sample: NR-SD-24V (WG type) 105 pcs. x = 24.2 mΩ 3σ = 9.27 mΩ 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%. 10 20 30 40 50 Contact resistance, mΩ 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.-(1) Mechanical life (Change of pick-up and drop-out V) Tested Sample: NR-SD-24V, 10 pcs. Operation frequency: 500 cps Pick-up/drop-out Voltage, V 180 Rate of change, % 160 140 120 100 80 60 40 20 Rate of change, % Drop-out voltage 180 160 140 120 100 80 60 40 20 Pick-up voltage 15 Pick-up Voltage Max. Pick-up voltage 10 Min. Drop-out Voltage 5 Max. Min. –40 –20 0 20 40 60 80 100 –30 –10 10 30 50 70 90 Ambient temperature, °C –40 –20 0 20 40 60 80 100 –30 –10 10 30 50 70 90 Ambient temperature, °C 1,000 10,000 100,000 No. of operations, ×104 10.-(2) Mechanical life (Change of contact resistance) Tested Sample: NR-SD-24V, 10 pcs. Operation frequency: 500 cps 90 Contact resistance, mΩ 80 70 60 50 40 30 20 10 1,000 10,000 100,000 Min. Max. N.C. side N.O. side 11.-(1) Electrical life (1 A 20 V DC resistive load) Tested sample: NR-SD-24V, 10 pcs. F(t)(%) 99.9 99.0 95.0 70.0 50.0 30.0 10.0 5.0 2.0 1.0 0.5 0.2 0.1 η: 1.85×106 µ: 1.65×106 σ: 5.64×104 (Weibull probability paper) 1 5 10 No. of operations, ×104 11.-(2) Electrical life Tested Sample: NR-SD-24V, 10 pcs. Load: 60 mA 24 V DC resistive load Frequency: 50 cps N.C. side N.O. side 150 Contact resistance, mΩ 100 50 100 1,000 1,0000 No. of operations, ×104 No. of operations, ×104 115 NR 11.-(3) Electrical life 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 1,000 Contact resistance, mΩ Pick-up/drop-out voltage, V 24 V DC L1 Pick-up voltage 12 Max. x Min. Contact resistance, mΩ L1~L6: HP2-DC24V × 6 pcs. in parallel Diode protector provided L2 L3 L4 L5 L6 11.-(4)Electrical life (327 mA 24 V DC relay coil load) Tested sample: NR-SD-24V, 5 pcs. Condition: HP2-DC24×6 pcs. in parallel, diode protector provided NR relay contact 16 100 Max. 100 80 60 40 20 8 Drop-out voltage 4 Max. x Min. 100 200 300 Max. x Min. 100 200 300 Min. 1,000 10,000 4 0 No. of operations, ×10 No. of operations, ×104 No. of operations, ×104 12. Thermal electro motive force Tested Sample: NR-SD-12V, 5 pcs. Coil applied V: 12 V DC Ambient atmosphere: 25°C 77°F, 60% RH 200 13. High temperature test TEST CONDITION Tested Sample: NR-SD-24V, 30 pcs. Ambient temperature: 80°C 176°F Humidity: less than 50% R.H. Exposure time: 2,000 hours with relays deenergized. 14. Influence of adjacent mounting mm inch TEST RESULT Thermal EMF, µV Contact resistance: Fig. 1 All samples were measured less than 100 mΩ in contact resistance throughout this test. 100 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 Contact resistance, mΩ N.C. N.O. Contact resistance, mΩ 500 N.C. N.O. 2 4 6 8 10 Hour 12 14 16 100 80 60 40 20 10 Max. Min. 1,000 2,000 100 Exposure time, hr Max. 100 Max. Max. Mean value of N.O. Mean value of N.C. Min. Min. 1 2 5 10 15 50 20 No. of operations, ×106 APPLICATION HINTS Contact protection circuit When using NR relays in inductive load circuits, a contact protection circuit is recommended. Examples: CR S CR Relay contact S Diode S r r c L c L L 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. Can be used for both AC and DC circuits. Use 500 to 1000 ohms for r and 0.1 µF to 0.2 µF 200 V for c in a general 12 to 24 V load circuit. For DC circuits only. 116 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 µF + 1kΩ or diode 0.2 µF + 1kΩ or diode 0.1 µF + 1kΩ or diode 0.1 µF + 1kΩ or diode 0.2 µF + 1kΩ 0.1 µF + 1kΩ or varistor 0.1 µF + 1kΩ 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. 3×107 3×107 3×107 2×107 3×107 2×107 2×107 (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. Ripple factor Coils should be operated on pure DC. Rectified AC may cause changes in the 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. coil bias voltage coil pick-up/drop-out characteristics because of the ripple factor. Use of a capacitor in Pulsating component the circuit is recommended to keep the ripple factor below 5%. To calculate the ripple factor Ripple factor (%) = E max. – E min. × 100% E mean R : relay R E min. E max. E mean capacitor (ripple filter) DC component 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 Ω) 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 Ω 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 5 2 6 3 1 coil bistable type 2 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 µF: (24 V type). C (V) Specified Pick - up voltage NR relay coil SW t more than 2 ms NR relay contact C 5 6 2 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 SW Coil voltage wave form V NR relay contact NR relay coil T (Time) NR relay coil coils and decreases contact pressure at N.O. side even if the transistor or UJT are in OFF condition. As a result, characteris- tics of relays may be harmed. Design your circuits in principle to make such residual voltage zero. 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). Load COM Load separation Load N.C. COM N.O. N.O. N.C. Load Fig. 1 118 NR ACCESSORIES PC board terminal sockets (with hold-down clip) PC board pattern (Copper-side view) 10 .394 1 2 7 6 20.9 .823 E 3 5 4 4.4 .173 0.3 .012 9.9 .390 6.15 .242 5.0 .197 2.4 .094 2.7 .106 7.4 .291 8-1.5 to 1.6 dia. 8-.059 to .063 dia. mm inch R-PS 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, © Copyright Matsushita Electric Works, 119 Ltd. Go To Online Catalog