- Zn-Pr-Co-Cr-Er 산화물계 바리스터의 써지 스트레스에 대한 전기적 안정성에 미치는 소결온도의 영향
- ㆍ 저자명
- 남춘우,박종아,유대훈,Nahm. Choon-Woo,Park. Jong-Ah,Yoo. Dea-Hoon
- ㆍ 간행물명
- 전기전자재료학회논문지
- ㆍ 권/호정보
- 2004년|17권 11호|pp.1167-1173 (7 pages)
- ㆍ 발행정보
- 한국전기전자재료학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
This paper reports the variations of varistor voltage, nonlinear exponent, leakage current, and dissipation factor against surge stress of ZnO-P $r_{6}$ $O_{11}$-CoO-C $r_2$ $O_3$-E $r_2$ $O_3$(ZPCCE)-based varistors manufactured with the variations of sintering temperature. It was found that the variations of electrical parameters against surge stressing current of 100 A/$ extrm{cm}^2$(8x20 ${mu} extrm{s}$) is not so large under the surge stress of 700 times. Among varistors, specially the varistor sintered at 134$0^{circ}C$ exhibited the smallest variations, with %$Delta$ $V_{lmA}$=+0.23%, %$Delta$$alpha$=+0.23%, %$Delta$ $I_{L}$=0%, %$Delta$tan$delta$=-6.94%. The clamping voltage ratio( $V_{c}$/ $V_{lmA}$) of all varistors was less than 2.2.2.2.2.2.2.