CS45-B2GA471K-NKA CS45-B2GA471K-NKA 陶瓷电容 CS45-B2GA471K-PKA CS45-B2GA471K-VKA CS45-B2GA681K-GKA CS45-B2GA681K-NKA CS45-B2GA681K-VKA CS45-E2GA102M-GKA CS45-E2GA102M-GKA 陶瓷电容 CS45-E2GA102M-NKA