MB10F - 0.8A 1000V SMD Bridge Rectifier MBF | Diodes Incorporated
MPN: MB10F ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.18 | $0.18 |
| 10 | $0.14 | $1.40 |
| 100 | $0.09 | $9.00 |
| 500 | $0.07 | $35.00 |
| 1,000 | $0.05 | $50.00 |
MB10F Overview
A bridge rectifier is a four-diode network that converts a bipolar AC input into a polarity-corrected DC output. It belongs to the broader hierarchy of power discrete semiconductors: bridge rectifier > rectifier diode > diode > discrete semiconductor. Single-phase glass passivated bridge rectifiers like the MB10F consolidate four PN junctions into one SMD package, replacing discrete through-hole solutions (e.g., 1N4007 quads) and reducing PCB area by approximately 50%.
Key features include a 0.8 A average forward rectified current (IO), 35 A peak forward surge current (IFSM) for 8.3 ms single half-sine pulses, an operating junction temperature range of -55 °C to +150 °C, and a glass passivated die construction that improves long-term reliability and moisture resistance. The MBF package offers a low-profile 4-SMD gull-wing footprint compatible with automated SMT assembly lines, with thermal resistance (RθJA) of approximately 63 °C/W when properly soldered to a minimum 10 mm² copper pad.
Internally the MB10F uses four identical passivated rectifier dice wired in a full-wave bridge configuration. This architecture delivers high surge tolerance relative to its small die area and provides symmetrical AC input handling, which simplifies PCB layout because polarity markings (~ and +) are clearly defined on the top-side laser-etched marking. The glass passivation layer reduces surface leakage and improves stability under high humidity and temperature cycling, making the part suitable for consumer, industrial, and telecom environments.
Typical applications include switch-mode power supplies (SMPS), LED lighting drivers, AC adapters, battery chargers, home appliances, office equipment, and telecommunication auxiliary power rails. The 1000 V VRRM rating also makes it well-suited to universal-input (90-265 VAC) designs where line transients and inductive kickback from transformer leakage must be absorbed safely.
When designing with the MB10F, observe the derating of output current with ambient temperature (IO falls to roughly 0.4 A at 100 °C). A minimum 10 mm² copper pad per terminal is required to achieve the rated thermal performance; insufficient copper rapidly degrades surge survival. For higher-current needs, the MB6S/MB10S family or discrete 1N5408 bridges should be evaluated.
This page synthesizes distributor pricing, drop-in same-package equivalents, and practical PCB layout notes that complement the manufacturer datasheet, helping engineers select and qualify the MB10F quickly for new designs.
Drop-in alternatives for MB10F — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MB6F
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MB10F
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View Datasheet →MB10F Maximum Ratings & Electrical Characteristics
| Manufacturer | Diodes Incorporated |
| Part Type | Single-Phase Bridge Rectifier |
| Average Forward Rectified Current (IO) | 0.8 A |
| Peak Repetitive Reverse Voltage (VRRM) | 1000 V |
| RMS Reverse Voltage (VR(RMS)) | 700 V |
| Forward Voltage Drop (VF) per leg | 1.1 V at 0.4 A |
| Peak Forward Surge Current (IFSM) | 35 A (8.3 ms single half-sine) |
| Reverse Current at Rated VR (IR) | 5.0 µA at 25 °C; 0.5 mA at 125 °C |
| Operating Junction Temperature Range | -55 °C to +150 °C |
| Storage Temperature Range | -55 °C to +150 °C |
| Package | MBF (4-SMD Gull-Wing) |
| Mounting Type | Surface Mount |
| Thermal Resistance Junction to Ambient (RθJA) | 63 °C/W |
| Diode Construction | Glass Passivated |
| UL Recognition | File # E364304 |
| RoHS / Lead-Free | Compliant; Halogen-Free (Green Device) |
MB10F Pin Configuration
| Pin 1 | AC~ — AC input terminal 1 (bridge rectifier AC side) |
| Pin 2 | AC~ — AC input terminal 2 (bridge rectifier AC side) |
| Pin 3 | - — DC negative output (rectifier - terminal) |
| Pin 4 | + — DC positive output (rectifier + terminal) |
Typical Applications
MB10F is suitable for 6 applications: Switch-Mode Power Supplies (SMPS), LED Lighting Drivers, AC Adapters and Battery Chargers, Home Appliances and Office Equipment, Telecommunication Auxiliary Power, Industrial Control and IoT Gateways.
Switch-Mode Power Supplies (SMPS)
The MB10F is used as the front-end bridge rectifier in SMPS input stages that accept universal AC mains (90-265 VAC). Its 1000 V VRRM comfortably exceeds the worst-case rectified bus voltage (~375 V) plus inductive ringing, while the 0.8 A average forward current suits 5-30 W flyback and buck topologies. The MBF SMD package is preferred over through-hole bridges because it eliminates hand-soldering steps and reduces PCB area by roughly 50% versus discrete 1N4007 quads. According to the Diodes Incorporated datasheet, the 35 A IFSM surge rating covers transformer inrush and bulk-capacitor charging transients. Pair the MB10F with an NTC thermistor for inrush limiting, and follow the recommended 10 mm² copper pad per terminal for thermal compliance.
Recommended
LED Lighting Drivers
AC-input LED driver designs - bulb retrofits, downlights, and strip-light adapters - use the MB10F as the input bridge to convert mains AC into a DC bus for downstream constant-current regulators. The 1000 V VRRM tolerates wide mains transients and PFC-stage switching overshoot, while the 0.8 A rating suits 3-15 W LED loads typical of residential fixtures. The MBF surface-mount footprint enables all-SMT driver boards, eliminating the wave-solder step required by through-hole bridges. Glass passivated die construction gives the MB10F long-term stability in enclosed, high-temperature luminaire environments (often 80 °C+ inside the fixture). Refer to the datasheet derating curves - at 75 °C ambient the usable IO drops to about 0.5 A; size the LED array accordingly or add copper thermal relief.
Recommended
AC Adapters and Battery Chargers
Linear and quasi-resonant AC adapters for small appliances, toys, and lithium-ion chargers commonly use the MB10F at the input. The 1000 V rating covers rectified 230 VAC plus transformer leakage spike energy, while the 0.8 A continuous current supports 5-15 W adapter output power. The MBF SMD package aids in miniaturized travel-adapter designs where every square millimeter matters. The 35 A IFSM rating is critical because the charger bulk capacitor can draw large peak currents during cold-plug events; verify the inrush NTC sizing against IFSM. Halogen-free, lead-free, RoHS-compliant finish makes MB10F suitable for global retail products including UL recognition (File # E364304) which simplifies end-product safety certification.
Recommended
Home Appliances and Office Equipment
White goods (coffee makers, blenders, microwave control boards) and office equipment (printers, copiers, scanners) commonly embed the MB10F in low-voltage auxiliary supplies. Its 1000 V VRRM tolerates long-life mains disturbances, while the 0.8 A rating covers small fan, valve, and logic-rail loads. The MBF package supports high-density control boards where the bridge sits next to an MCU and a relay. The glass passivation layer improves resilience against humid kitchen and bathroom environments compared to non-passivated bridges, and the 150 °C junction rating accommodates enclosed appliance interiors. Confirm compliance with end-product IEC/UL standards; the UL-recognized MB10F accelerates agency approvals.
Recommended
Telecommunication Auxiliary Power
Telecom equipment (routers, ONTs, small-cell base stations, line cards) often derives low-voltage rails from -48 V or universal-mains inputs. The MB10F serves in the universal-mains branch where 90-265 VAC is converted to a DC bus for downstream isolated DC-DC converters. The 1000 V VRRM easily covers rectified 230 VAC bus voltages, and the MBF package enables compact line-card layouts. Low reverse leakage (5 µA at 25 °C) keeps standby losses minimal, which is critical for ENERGY STAR and EU Ecodesign compliance. For higher-current line-card rails (above 0.8 A continuous), designers should consider the MB10S in the larger MBS package or a discrete diode array; the MB10F remains ideal for sub-watt auxiliary circuits.
Recommended
Industrial Control and IoT Gateways
Industrial IoT gateways, PLCs, and sensor hubs frequently accept 24 VAC / universal mains and need a rugged bridge front-end. The MB10F in MBF package delivers 1000 V reverse robustness and 0.8 A continuous current for sensor, communication, and small actuator rails. Its -55 °C to +150 °C junction range covers outdoor enclosures and unheated cabinets. Glass passivated die construction and the halogen-free, lead-free finish align with industrial reliability expectations. Place the MB10F as close as practical to the AC input connector to minimize EMI loop area, and pair it with an X-capacitor and common-mode choke to meet conducted-emissions standards. Refer to the datasheet derating curves when the gateway sits in a sealed enclosure with limited convection.
Recommended
Recommended Products Summary
Engineering reference data for MB10F — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MB6F | MB8F | MB2F | MB10F (SMC) | MB10F (Slkor) |
|---|---|---|---|---|---|---|
| Brand | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | Diodes Incorporated | SMC Diode Solutions | Shenzhen Slkormicro Semicon |
| Package | MBF (4-SMD) | MBF (4-SMD) - same | MBF (4-SMD) - same | MBF (4-SMD) - same | MBF (4-SMD) - same | MBF (4-SMD) - same |
| Average Forward Current (IO) | 0.8 A | 0.8 A | 0.8 A | 0.8 A | 0.8 A | 0.8 A |
| Peak Repetitive Reverse Voltage (VRRM) | 1000 V | 600 V | 800 V | 200 V | 1000 V | 1000 V |
| Forward Voltage Drop (VF) | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
| Peak Forward Surge Current (IFSM) | 35 A | 35 A | 35 A | 35 A | 35 A | 35 A |
| Thermal Resistance (RθJA) | 63 °C/W | 63 °C/W | 63 °C/W | 63 °C/W | 63 °C/W | 63 °C/W |
| Operating Junction Temperature | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C |
Key Differentiators
- Compact MBF SMD footprint with 63 °C/W RθJA (vs MB10S)
- Industry-standard second-source availability (vs MB10F (Diodes Incorporated))
- Voltage-tier scalability within same package (vs MB2F / MB6F / MB8F)
Design Notes
The MB10F is rated 0.8 A average forward current at 25 °C ambient with the standard MBF footprint and a recommended minimum 10 mm² copper pad per terminal. At 100 °C ambient the allowable IO falls to about 0.4 A per the derating curve. Designers must either keep ambient below 60 °C or grow the copper pad. Estimated: with a 10 mm² pad and 1 oz copper, RθJA is approximately 63 °C/W; doubling the pad to 20 mm² reduces RθJA by ~15-20%, lifting the 100 °C derated current to roughly 0.55 A.
Place the MB10F as close as practical to the AC input connector and bulk filter capacitor to minimize the high-frequency conducted-emissions loop. Keep the AC traces wide and short, and pair the bridge with an X-capacitor across the line and a common-mode choke on the AC side for EMI compliance. The DC output traces should be sized to carry 1.5× the rated continuous current (1.2 A minimum) and routed away from sensitive analog nodes. Polarity markings on the package top (- on one side, + on the other) must be respected during placement.
Do not parallel-select two MB10F devices to double the current rating - bridge rectifiers do not share current evenly and one will hog the load. Do not exceed IFSM (35 A for 8.3 ms) during inrush; an NTC thermistor (e.g., 10 Ω cold) should be placed in series with the AC line for capacitive loads above 100 µF. Reverse polarity of the DC output terminals will not damage the bridge but will damage downstream circuits - always verify polarity with a DMM before applying power. Avoid mounting the MB10F on a single-sided PCB without thermal relief; this can double RθJA and force significant derating.
Compliance Information
UL Recognized File # E364304. Halogen-free and antimony-free Green Device per Diodes Incorporated datasheet. Not AEC-Q100 qualified - the MB10F is aimed at consumer/industrial segments; consult Diodes Incorporated for automotive-grade equivalents.
