This is a kind of Bridge Rectifier. KBPC3510 Datasheet PDF learn more.
Part number : KBPC3510
Functions : 35A, 1000V, Bridge Rectifier (Diode)
Package information : Bridge Type
Manufacturer: Nell Semicondcutor, Good-Ark Electronics
Images

Features
1. Surge overload 200-400 amperes peak
2. Low forward voltage drop
3. Mounting position: Any
4. Electrically isolated base-1800 volts
5. Solderable 0.25 FASTON terminals
6. Materials used carries U/L recognition
Pin arrangement :

Absolute Maximum Ratings (Ta = 25°C)
1. Maximum repetitive peak reverse voltage : Vrrm = 1000 V
2. Maximum RMS voltage : Vrms = 700 V
3. Maximum DC blocking voltage : Vdc = 1000 V
4. Maximum average forward rectified output current : If(av) = 35 A
Applications
General purpose use in AC/DC bridge full wave rectification for power supply, home appliances, office equipment, industrial automation applications.
[ … ]



