MBR20100CTDual common-cathode Schottky rectifier

MBR20100CT contains two Schottky rectifiers with a common cathode. In the TO-220 front view, pin 1 is anode 1, pin 2 is the common cathode and pin 3 is anode 2. The exposed metal tab also connects to the cathode. The through-hole reference follows Vishay’s 100 V, 20 A total device; its 10 A per-diode rating requires the specified case temperature. The SMD switch shows Diodes Incorporated MBRB20100CT in D2PAK, a separately specified alternative with different thermal and leakage limits. The example combines current-limited 5 V and 3.3 V sources through the two anodes into a 100 Ω load. With an assumed 0.5 V conducting drop, the higher source gives about 4.5 V and 45 mA at the load. Both source negatives share ground.