title.gif (33972 bytes)

METAL OXIDE VARISTOR
PERFORMANCE CHARACTERISTICS - ENVIRONMENTAL


Characteristics Test Method Specifications
High Temperature Storage/Dry Heat The specimen shall be subjected to 125± 2oC for 1000 hours in a thermostatic bath with out load and then stored at room temperature and humidity for 1 to 2 hors. Thereafter, change of Vc shall be measured. VcmA/VcmA  ±5%
Damp Heat/Humidity (Steady State) The specimen shall be subjected to 40± 20oC, 90 to 95% RH for 1000 hours without load and then stored at room temperature and humidity for one to two hours. Thereafter, the change of Vc shall be measured.
Temperature Cycle
The temperature cycle shown below shall be repeated five times and then stored at room temperature and humidity for 1 to 2 hours. The change of Vc and mechanical damage shall be examined.
Step Temperature(oC) Period(minutes)
1 -40±3 30±3
2 Room temperature 15±3
3 125±2 30±3
4 Room temperature 15±3
High Temperature Load/Dry Heat Load After being continuously applied the Maximum Allowable Voltage at 85 ± 2oC for 1000 hours, the specimen shall be stored at room temperature and humidity for 1 to 2 hours. Thereafter, the change of Vc shall be measured. VcmA/VcmA  ±10%
Damp Heat Load Humidty Load The specimen shall be subjected to 40±2oC, 90 to 95% RH and the Maximum Allowable Voltage for 1000 hours and then stored at room temperature and humidity for 1 to 2 hours, Thereafter, the change of Vc shall be measured. VcmA/VcmA  ±10%
Low Temperature Storage/Cold The specimen shall be subjected to -40±2oC without load for 1000 hours and then stored at room temperature for 1 to 2 hours. Thereafter, the change of Vc shall be measured. VcmA/VcmA  ±5%

HOW TO ORDER       PART DIMENSIONS


JYA-NAY CO., LTD.



bottom-left.gif (2586 bytes)
bottom.gif (1698 bytes) 64-1, Neighborhood 10, Kuo Ling Li, Chung Li District. Taoyuan, 320 Taiwan.
TEL:+886-3-4903829   FAX:+886-3-4903871
http://www.jyanay.com.tw  E-mail:sales@jyanay.com.tw
bottom.gif (1698 bytes)
bottom-right.gif (2601 bytes)