VISHAY
通孔电阻器, RCH系列, 4.7 kohm, 50 W, ± 5%, 1.285 kV
通孔电阻器, SH系列, 4.7 kohm, 50 W, ± 5%, 1.285 kV
通孔电阻器, RPH 100系列, 4.7 kohm, 10 W, ± 5%, 1.9 kV
绕线电阻 72W 5% 4K7