创唯电子销售电路保护 - 电位计, 可变电阻器 - 旋转 - 对数, PDB181-K420K-104B, PDB181-K420K-105A, PDB181-K420K-105B, PDB181-K420K-202A, PDB181-K420K-203A, PDB181-K420K-203B, PDB181-K420K-204A, PDB181-K420K-204B, PDB181-K420K-502A, PDB181-K420K-502B, PDB181-K420K-503A, PDB181-K420K-504A.