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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.
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NR
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.
TYPICAL APPLICATIONS
Telecommunications equipment, alarm devices, machine tools, NC machines, automatic warehouse control, conveyors, air-conditioners, pressing machines, tex-
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
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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
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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.
NR
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