■ RELIABILITY DATA
RING VARISTORS
1. Operating Temperature Range
Specified Value
ー25～＋120℃
For the range of 50 to 120℃, refer to the derating curve.
2. Storage Temperature Range
Specified Value
ー25～＋120℃
3. Rated Power
Specified Value
Refer to the individual specification
Refer to the individual specification
4. E10 Characteristic
Specified Value
【Test Methods and Remarks】
(at 25±5℃)
E
A
V
E
: Constant-current source
: Digital ammeter
: Digital voltmeter
10 : Voltage at reference current with application of 10mADC
Input waveform is square wave. (Width : 50m sec., max.)
5. Non-linear Coefficient Rated α (at 25±5℃)
Refer to the individual specification
1
Specified Value
Difinitionα=
E1 : Voltage at reference current with application of 1mADC
10 : Voltage at reference current with application of 10mADC
logE10／E1
E
【Test Methods and Remarks】
E
A
V
: Constant-current source
: Digital ammeter
: Digital voltmeter
E10 : Voltage at reference current with application of 10mADC
Input waveform is square wave. (Width : 50m sec., max.)
6. Capacitance
Specified Value
Refer to the individual specification
Refer to the individual specification
Refer to the individual specification
【Test Methods and Remarks】
Measuring frequency : 1kHz±10%
Measuring voltage
: 1.0±0.5Vrms
Measuring temperature : 25±5℃
7. Tangent of Loss Angle (tanδ)
Specified Value
【Test Methods and Remarks】
Measuring frequency : 1kHz±10%
Measuring voltage
: 1.0±0.5Vrms
Measuring temperature : 25±5℃
8. Temperature Characteristic of Capacitance
Specified Value
【Test Methods and Remarks】
Measurement of voltage at reference current at 25℃ and 50℃shall be made for the calculation by the following equation.
E1（0 50℃）ーE1（0 25℃）
100
50℃ー25℃
α＝
×
（％/℃）
E1（0 25℃）
Change of maximum capacitance deviation in step 1 to 5
Temperature at step 1: 25℃ (Reference temperature)
Temperature at step 2: 50℃
9. Pulse
Specified Value
Refer to the individual specification
【Test Methods and Remarks】
R1 : 2kΩ
C1 : 35±5μF
E1 : Individual specification
Number of pulse application : 10 times
Measuring temperature
: 25±5℃
10. Body Strength
Specified Value
Refer to the individual specification
【Test Methods and Remarks】
Pressing force : Refer to Individual specification
L
: Depends upon the sample size
11. Adhesion of Electrode
Specified Value
No detachment of electrode or sign of such defects
【Test Methods and Remarks】
Lead wire shall be soldered perpendicularly onto the electrode, then pulled out perpendicularly.
Speed to pull out : 2.5cm／2sec.
Solder to be used : Eutectic solder
＊This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our specification.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our Web site (http://www.ty-top.com/) or CD catalogs.
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