NR-HD-5V Datasheet, PDF (3/8 Pages) Nais(Matsushita Electric Works) – LONG LIFE RELAY

NR
DIFFERENCES BETWEEN NR RELAYS AND REED RELAYS
Structure
NR relays
Reed relays
"Getter" holes are formed on both pole
shoes to obtain uniform contact resis-
tance throughout life. Film-forming phe-
nomena 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
R0
24 V DC
R54 R1 R2
R0 R1
R2
R3
R52
R53
R53
R54
Item to be checked: Detect with the circuit stopped
Circuits:
(A) Diode provided: The circuit does not stop through-
out 100 million times.
(B) Diode not provided: λ60 = 2.5 × 10^-8 times
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
5 10
No. of operations, ×10^{7 (WEIBULL)}
2. Coil temperature rise
(under saturated condition)
100
90
80
70
60
Magnetically
50
sealed type
40
30
Plastic
sealed type
20
10
250 500 750 1,000 1,250
Operating power, mW
3.-(1) Operate time including bounce time
(Single side stable)
3.0
2.5
2.0
1.5
1.0
Max.
x
0.5
Min.
0
60
100 140 180 220
Coil applied voltage, %V
3.-(2) Operate time including bounce time
(2 coil latching)
3.0
2.5
2.0
1.5
1.0
0.5
0 ₆₀
Max.
x
Min.
100 140 180 220
Coil applied voltage, %V
4. Release time including bounce time
(Single side stable)
3.0
2.5
2.0
1.5
1.0
0.5
0
60
Max.
x
Min.
100 140 180 220
Coil applied voltage, %V
114