參數(shù)資料
型號(hào)： MVR22
廠商： Rohm CO.,LTD.
元件分類： 數(shù)字電位計(jì)
英文描述： Chip trimmer potentiometers
中文描述： 芯片微調(diào)電位器
文件頁數(shù)： 2/9頁
文件大小： 134K
代理商： MVR22
MVR32
Resistors
!
Characteristics
Characteristics
Test method (JIS C 5261)
Specifications
DC total resistance
Contact
resistance rate
Resistance to dry heat
Temperature cycling
Resistance to humidity
(steady state)
Wiper noise
5% or less of total nominal resistance,
within the effective rotational range
R
<
1k
200
or less
R
≥
1k
Within 2% of total nominal resistance
Total resistance change rate :
±
(5.0%
+
0.1
)
Constriction contact resistance rate: 8% or less
Total resistance change rate :
±
(5.0%
+
0.1
)
Constriction contact resistance rate: 8% or less
Total resistance change rate :
±
(5.0%
+
0.1
)
Constriction contact resistance rate: 8% or less
Within
±
25%
3% or less
Resistance change
characteristics
Residual resistance
Resistance temperature
characteristics
B group OB
±
250ppm /
C
JIS C 5261 5.8 B method
Rotational speed of approx. 10 cycles per minute
(with one cycle defined as one round trip)
Measurement circuit
Measurement waveform
Provided that the constant current has been set
according to the following:
10
Is : Is =
(When Rx
≤
1k
,
constant current is defined as Is = 10mA)
Rx : Nominal resistance of semi-fixed test resistor.
Vn : Noise voltage
Vn
Noise rate =
JIS C 5261 7.2
125
C
Test time : 1,000
～
1,048 hrs.
JIS C 5261 7.3
Test temperature:
55
C
～
+
125
C
100cyc.
JIS C 5261 7.4
60
C
, 95%RH
Test time: 1,000
～
1,048 hrs.
JIS C 5261 5.3
+
25 /
55 /
+
25 /
+
125
C
JIS C 5261 5.1
Voltage method
JIS C 5261 5.1
Vn
Rx
Is
Oscilloscope
Rx
Is
×
Rx
×
100 (%)
Endurance
(under load in damp
environment)
Endurance
(steady state)
Endurance
(wiper)
Rotational torque
Total resistance change rate :
±
(5.0%
+
0.1
)
Constriction contact resistance rate: 8% or less
Total resistance change rate :
±
(5.0%
+
0.1
)
Constriction contact resistance rate : 8% or less
1.9
～
19.7mN
m
(20
～
200gf
cm)
Total resistance change rate : Within
±
15%
Constriction contact resistance rate : 8% or less
JIS C 5261 7.6
Rated voltage (current) , 60
C
, 95%RH
1.5h : ON
0.5h : OFF
Test time: 1,000
～
1,048 hrs.
JIS C 5261 7.7
Rated voltage (current) , 70
C
1.5h : ON
0.5h : OFF
Test time: 1,000
～
1,048 hrs.
JIS C 5261 6.2
JIS C 5261 7.8
After 20 rotations
JIS C 5261 5.1
JIS C 5261 5.9
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