tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal tube field B2918L tube 90A TO263 in 100% 100V stock new N-channel effect AOB2918L 10pcs MOS orginal