My Inquiry
My Account
Diodes Incorporated MB352-F
- Part No.:
- MB352-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-Square, MB
- Datasheet:
-
MB352-F.pdf
- Description:
- BRIDGE RECT 1PHASE 200V 35A MB
- Quantity:
- Payment:
- Shipping:
Inventory:4,783
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MB352-F from Diodes Incorporated is a high-current silicon bridge rectifier with 200 V maximum recurrent peak reverse voltage, 35 A average rectified output current at TC = 55°C, and 1.2 V maximum forward voltage drop at 17.5 A, designed for AC-to-DC conversion in industrial power supplies and motor drive front-ends.
For engineers reviewing the MB352-F datasheet, MB352-F pinout, MB352-F application, or MB352-F equivalent, key selection criteria include thermal resistance (2.5 °C/W junction-to-case), I²t fusing rating (664 A²s), RoHS-compliant lead-free finish, and bolt-down mounting requirement with thermal compound for heat-sink coupling.
Technical Context
This device implements a full-wave single-phase bridge rectifier topology using four silicon diodes in a monolithic metal-case package. It supports 60 Hz resistive or inductive loads and is rated for operation from –55°C to +150°C junction temperature.
Thermal performance is defined by RJC = 2.5 °C/W and case-to-ambient thermal resistance of 0.5 °C/W (with heatsink, RS-A = 0.5 °C/W). Reverse leakage is limited to 1.0 mA at 100°C and rated DC blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum peak reverse voltage per element; defines safe AC input voltage ceiling before breakdown |
| I(AV) | 35.0 A at TC = 55°C - Continuous DC output current capability under specified case-cooling conditions |
| VF | 1.2 V at 17.5 A - Forward conduction loss directly impacts power dissipation and efficiency in rectification stage |
| IFSM | 400 A (8.3 ms half-sine) - Surge current handling capacity during cold-start or line transients |
| I²t | 664 A²s - Fusing energy threshold; used for coordination with upstream overcurrent protection devices |
| RJC | 2.5 °C/W - Junction-to-case thermal resistance; determines minimum heatsink requirement for thermal management |
| IR | 1.0 mA at TA = 100°C - Reverse leakage per element; affects standby loss and reliability in high-temp environments |
Pinout & Package
MB352-F uses a high-conductivity metal case package with universal terminals: two AC input terminals (marked "AC"/"~"), one positive DC output (+), and one negative DC output (–), mounted via #10 screw hole (H dimension: 4.85–5.59 mm). Bolt-down mounting with silicone thermal compound is mandatory for thermal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 / AC2 | AC Input Terminals | Accept full-wave AC input; symmetrical connection-no polarity sensitivity on AC side |
| (+) | Positive DC Output | Delivers rectified positive rail; must connect to load or filter capacitor anode |
| (–) | Negative DC Output | Serves as return path and system ground reference; ties to capacitor cathode and load return |
Key Features
| Feature | Design Value |
|---|---|
| UL 94V-0 flame-rated case | Meets stringent flammability safety standard for enclosed industrial equipment |
| Bolt-down thermal interface | Enables direct metal-to-heatsink coupling with <2.5 °C/W RJC, critical for 35 A continuous operation |
| 0.25" Faston-compatible terminals | Supports snap-on, solder, or PCB-mounting flexibility without custom tooling |
| RoHS-compliant lead-free finish | Complies with EU Directive 2002/95/EC; exempted for high-temp solder per Annex Notes 5 & 7 |
Applications
| Industrial AC-DC Power Supply | Motor Drive Front-End Rectification |
|---|---|
Use Scenario: 3-phase or single-phase input stage converting 115/230 VAC mains to unregulated DC bus for SMPS or linear regulators. IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing isolated, polarity-corrected DC output with minimal conduction loss. Use Value: 35 A I(AV) and 400 A IFSM support high-power industrial supplies; low VF (1.2 V) reduces thermal burden on heatsink. | Use Scenario: Rectifying AC line input prior to DC link capacitors in variable-frequency drives (VFDs) for HVAC or pump control. IC Role / Device Role / Timing Role: High-current, thermally robust bridge enabling reliable DC bus generation under intermittent overload conditions. Use Value: 664 A²s I²t rating allows coordination with fast-acting fuses; RJC = 2.5 °C/W ensures stable operation at TJ ≤ 150°C. |
| Welding Equipment Power Stage | Uninterruptible Power Supply (UPS) Charger |
Use Scenario: High-duty-cycle rectification in arc-welding inverters where surge current and thermal cycling are extreme. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element handling repetitive 400 A surges and sustained 30+ A average current. Use Value: Metal-case construction and bolt-down mounting sustain mechanical and thermal stress; UL 94V-0 case enhances fire safety in enclosed welders. | Use Scenario: Battery charger front-end in line-interactive UPS systems requiring high-efficiency, long-life rectification. IC Role / Device Role / Timing Role: Mains-fed bridge supplying regulated charging current to sealed lead-acid or Li-ion battery banks. Use Value: Low IR (1.0 mA @ 100°C) minimizes standby leakage; RoHS-compliant finish meets environmental compliance for commercial UPS deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBPC3505 | Same 35 A I(AV), 50 V VRRM; plastic package, lower thermal resistance (RJC = 1.8 °C/W), no metal case | Preferred for cost-sensitive, non-high-temp industrial designs where metal-case ruggedness is not required | Select when lower RJC and PCB-mount compatibility outweigh need for bolt-down mechanical stability |
| GBPC3510 | Same 35 A I(AV), 1000 V VRRM; plastic package, RJC = 1.8 °C/W, higher voltage rating | Suitable for 400–600 VAC input systems (e.g., three-phase rectification) where 200 V is insufficient | Choose for higher-voltage AC inputs; verify heatsink adequacy given identical thermal resistance but higher VF at full rating |
Compared with MB352-F, GBPC3505 offers better thermal efficiency in plastic packaging but lacks metal-case EMI shielding and mechanical robustness, while GBPC3510 extends voltage capability at the expense of slightly higher forward drop above 800 V rating-both require revalidation of mounting and thermal interface design.
Availability
MB352-F is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, motor drive front-ends, and welding equipment requiring stable component supply and long-term manufacturability.
Supply support for MB352-F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial and automotive markets.
The MB-series bridge rectifiers were developed for high-current, thermally demanding AC/DC conversion in legacy industrial power systems, emphasizing metal-case durability, bolt-down thermal coupling, and surge resilience over modern plastic-packaged alternatives.
FAQ
Is MB352-F RoHS compliant?
Yes, MB352-F features a lead-free finish compliant with EU Directive 2002/95/EC (RoHS), effective for date codes 0514 and later. Exemptions apply for high-temperature solder and glass passivation per Annex Notes 5 and 7 of the directive.
What is the recommended mounting method for MB352-F?
MB352-F must be bolted directly to a heatsink using a #10 screw with maximum torque of 20 in·lb. A layer of silicone thermal compound is required between the metal case and heatsink surface to achieve the specified RJC = 2.5 °C/W and prevent thermal runaway.
Can MB352-F replace MB352 in existing designs?
Yes-MB352-F is functionally identical to MB352, with the "F" suffix indicating RoHS-compliant finish and updated date-code compliance (0514+). Electrical, thermal, and mechanical specifications are unchanged; no redesign or requalification is needed for drop-in replacement.
Why is MB352-F marked "Not Recommended for New Design"?
Diodes Incorporated recommends the GBPC35 series for new designs due to improved thermal resistance (1.8 °C/W vs. 2.5 °C/W), smaller footprint, and surface-mount compatibility. MB352-F remains fully supported for legacy repair, maintenance, and long-lifecycle industrial programs.
MB352-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-Square, MB
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 200 V
- Current - Average Rectified (Io):
- 35 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 17.5 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- QC Terminal
- Supplier Device Package:
- MB
MB352-F FAQ
1.How can I place an order for MB352-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MB352-F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MB352-F reliable?
The price and inventory of MB352-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB352-F is usually 5 days.
3.What payment methods are accepted for MB352-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB352-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MB352-F?
MB352-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MB352-F order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MB352-F?
For technical support, including MB352-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB352-F requirements.
6.How does Aetrix verify that MB352-F is sourced from the original manufacturer or authorized distributors?
All MB352-F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MB352-F meets industry standards.
7.What is the process for return or replacement of MB352-F?
All MB352-F units undergo pre-shipment inspection (PSI). If there is an issue with MB352-F, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MB352-F part is unused and in its original packaging.
Return procedure for MB352-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MB352-F Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
