Product Overview
Dual Common-Cathode Schottky Barrier Rectifier, 100 V, 10 A per Leg, D2PAK Surface Mount
Condition
Unused, new old stock (NOS). Markings legible: B20100 AKA with the ON logo. Sold each.
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Product Overview
ON Semiconductor MBRB20100CT: two Schottky barrier rectifiers sharing one cathode in a D2PAK (Case 418B) surface-mount package, rated 100 V reverse and 20 A per device. B20100 is the device code marked on the body; MBRB20100CT is the orderable part number.
Key Features
- Dual Schottky barrier rectifier, common cathode (center tap), platinum barrier metal
- Peak repetitive reverse voltage (VRRM): 100 V
- Average forward current: 10 A per leg, 20 A per device, at 110 C case temperature
- Non-repetitive surge current (IFSM): 150 A, half-wave, single phase, 60 Hz
- Operating junction temperature up to 175 C
- Package: D2PAK, Case 418B, surface mount
Applications
- Replacing a failed B20100 on the output side of a switch-mode power supply board
- Rectifying both halves of a center-tapped transformer secondary with a single package
- OR-ing two supply rails into one load, one anode per rail and the shared cathode to the load
Frequently Asked Questions
What do the B20100 and AKA markings mean?
B20100 is the device code for the MBRB20100CT. AKA marks the diode polarity arrangement, and the ON logo identifies the maker.
Is the 20 A rating per diode?
No. Each of the two diodes carries 10 A average; 20 A is the package total with both legs working, at a 110 C case.
The MBR prefix is Motorola's, carried into ON Semiconductor with the rest of the power line, and a Schottky barrier earns its seat in a switcher by losing less to heat than a plain silicon junction. Wick the old solder off the D2PAK pad first, since the big tab carries most of the heat out to the copper.
