NTE6354 thru NTE6365 Silicon Power Rectifier Diode.
NTE6354 - Silicon Power Rectifier Diode / 300 Amp
NTE6354 thru NTE6365 Silicon Power Rectifier Diode, 300 Amp Features: D Diffused Diode D High Voltage Ratings up to 1600 Volts D High Surge Current Ca.