VISHAY
通孔电阻器, MRS 25系列, 309 ohm, 600 mW, ± 1%, 350 V, 轴向引线
NEOHM - TE CONNECTIVITY
通孔电阻器, 309 ohm, 500 V, 轴向引线, 250 mW, ± 0.1%, R系列
HOLSWORTHY - TE CONNECTIVITY
通孔电阻器, H8系列, 309 ohm, 250 mW, ± 0.1%, 350 V, 轴向引线