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Product CatalogThe MB10S is a compact, surface-mount single-phase bridge rectifier design to convert AC input into DC output in space-constrained applications. With high reverse voltage capability and low leakage current, it is a go-to solution for general-purpose rectification in consumer electronics, power adapters, LED drivers, and industrial control circuits.
MB10S Bridge Rectifier Characteristics
Parameter | Value |
Type | Single-Phase Bridge Rectifier |
Technology | Standard |
Voltage - Peak Reverse (Max) | 1000 V |
Current - Average Rectified (Io) | 800 mA |
Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 800 mA |
Reverse Leakage Current | 5 µA @ 1000 V |
Operating Temperature | –55°C to +150°C (TJ) |
Mounting Type | Surface Mount |
Construction | Glass Passivated Die |
MB10S Output Voltage
Depends on the input AC-voltage and the voltage drops across the internal diodes.
· It converts AC to DC, but the output is not fixed.
· The DC output will be slightly lower than the AC input (because of voltage drop in the internal diodes).
· Example: If you input 12V AC, you’ll get around 10–11V DC after rectification.
To get stable DC, you should:
· Add a filter capacitor
· Optionally use a voltage regulator if need a fixed voltage.
Pinout
In a 4-pin SMD package:
_________
| |
– | 3 1 | +
| |
AC~ | 4 2 | AC~
|_________|
Pins 2 & 4: Connect to AC input.
Pin1: DC positive output, pin3: DC negative output (GND).
Circuit Diagram
Here's a simplified representation of how the functions as a full-wave bridge:
Pin | Function |
1 | + (DC Out) |
2 | AC~ (Input) |
3 | – (DC GND) |
4 | AC~ (Input) |
This matches many real devices where Pin 1 is in the top-right (usually marked with a dot or beveled edge), and counting proceeds counterclockwise.
Connect AC input to pins 2 and 4.
Take DC output from pin 1 (positive) and pin 3 (negative / ground).
Size and Mounting
· Package: Miniature 4-SMD
· Size: Approx. 4.6 × 4.6 × 1.2 mm
· Mounting: Surface Mount Technology (SMT), ideal for automated PCB assembly
MB10S Vishay Application
1. AC to DC Power Conversion
o Use to convert AC voltage into DC voltage in low-power electronics.
2. Small Power Adapters and Chargers
o In compact USB chargers, plug-in power supplies, and wall adapters.
3. LED Lighting Circuits
o Use in LED drivers to rectify AC mains before current regulation.
4. Battery Charging Circuits
o Helps convert AC to DC for charging low-voltage battery packs like Li-ion or NiMH.
5. Home and Consumer Electronics
o Provides DC power in devices such as clocks, radios, and remote control receivers.
6. Arduino and DIY Projects
o Suitable for microcontroller-based projects that take AC input and need regulated DC.
7. Industrial Control Systems
o Use to power control modules or logic circuits from industrial AC power sources.
8. Standby Power Supply
o Provides DC in always-on or low-power circuits that must run continuously.
MB10S circuit Datasheet PDF : MB10S-13
Frequently Asked Questions MB10S Diode
1. What is the use of MB10S?
Use to convert AC voltage to DC voltage in low-current applications, providing full-wave rectification in a compact, surface-mount package.
2. What is the current rating of MB10S?
The average forward current (Io) is 800 mA.
This means it can continuously supply up to 800 milliamps of rectified DC current under standard operating conditions. Suitable for low- to medium-current applications like power adapters, LED circuits, and small control boards.
For the manufacturers (e.g., ON Semiconductor, Diodes Incorporated, etc.), value 800mA.
However:
Some low-profile variants or specific brands list 500 mA, especially if the device operate under constrained thermal conditions or smaller package versions.
Always refer to the manufacturer’s datasheet to verify the exact rating for your specific part.
3. What is the difference between MB10F and MB10S?
Both are bridge rectifiers in surface-mount circuit with similar electrical characteristics, including a peak reverse voltage of 1000 V and an average forward current of 500 mA. However, the MB10F is a newer, thinner version of the MB10 S and offers improved thermal performance.
The thermal resistance of the MB10F is significantly lower at 63 °C/W, compared to 101 °C/W for the MB10 S. This means the MB10F can dissipate heat more efficiently, making it better suited for compact or thermally demanding designs.
In summary:
· MB10F: Thinner, better thermal performance, ideal for tight spaces.
· MB10S: Standard size, widely use in general applications.
4. What is the output voltage of MB10S IC?
The output DC voltage depends on the AC input and forward voltage drops. For a 12V AC input, the output will be around 11.8V DC after accounting for diode losses.
The MB10S proves to be a powerful component for compact electronics needing reliable AC-DC conversion. Its low leakage, high voltage handling, miniature package saves space on PC boards and surface-mount design make it ideal for circuit design.
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