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Diodes Incorporated MRS30M-13
- Part No.:
- MRS30M-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Flat Leads
- Datasheet:
-
MRS30M-13.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 3A MSBL
- Quantity:
- Payment:
- Shipping:
Inventory:3,914
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Product details
Overview
MRS30M from Diodes Incorporated is a 3.0A surface-mount fast recovery bridge rectifier rated for 1000V peak repetitive reverse voltage, 1.3V forward voltage at 3A/25°C, 250ns reverse recovery time, and 5μA leakage current at 1000V/25°C; used in AC–DC bridge full-wave rectification for LED lighting power supplies and SMPS input stages.
For engineers reviewing the MRS30M datasheet, MRS30M pinout, MRS30M application, or MRS30M equivalent, key selection criteria include its MSBL package thermal performance (RθJC = 2°C/W), fast tRR for high-frequency switching efficiency, glass-passivated die reliability, and UL recognition for safety-critical power conversion designs.
Technical Context
The MRS30M integrates four fast recovery diodes in a single-phase bridge configuration with common-cathode and common-anode terminals. Its 250ns reverse recovery time enables operation up to ~100kHz in offline SMPS without excessive switching loss.
Thermal design is supported by low junction-to-case resistance (2°C/W) when mounted on an aluminum plate, and its glass-passivated die construction ensures stable VRRM and IR over temperature and long-term reliability under surge conditions (100A IFSM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak line voltage surges in universal-input (85–265VAC) offline converters |
| IO (TC = +130°C) | 3.0 A - Continuous average output current capability at elevated case temperature |
| tRR | 250 ns - Enables efficient high-frequency rectification with reduced switching loss and EMI |
| VF @ 3A, 25°C | 1.3 V - Directly determines conduction loss and thermal rise in bridge configuration |
| IR @ 1000V, 25°C | 5 μA - Low leakage preserves efficiency in high-impedance hold-up and standby circuits |
| RθJC | 2 °C/W - Allows direct heatsinking to PCB copper or metal core for thermal management |
Pinout & Package
Package: MSBL - Surface-mount, compact thin-profile molded plastic package (7.30 × 6.60 × 1.40 mm), UL 94V-0 rated, moisture sensitivity level 1, matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Marked) | AC Input Terminal (Anode of D1 / Cathode of D2) | Identifies polarity for correct AC line connection; misorientation causes open-circuit or short |
| Pin 2 | DC Positive Output (Common Cathode) | Delivers rectified positive voltage; connects to bulk capacitor and downstream converter |
| Pin 3 | AC Input Terminal (Anode of D3 / Cathode of D4) | Second AC input node; completes full-wave bridge path with Pin 1 |
| Pin 4 | DC Negative Output (Common Anode) | Reference return path for DC output; ties to system ground or negative rail |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die construction | Ensures stable VRRM and IR over 150°C operating range and prevents surface degradation during humid reflow |
| EMI-optimized filter rectifier design | Low junction capacitance (45pF) and controlled dV/dt response reduce high-frequency noise injection into AC lines |
| Compact MSBL package | Enables high-density layout in space-constrained adapters and LED drivers without sacrificing thermal performance |
| UL Recognized Component (E364304) | Validates safety compliance for end-equipment certification without additional system-level testing overhead |
Applications
| LED Lighting Power Supply | Desktop/Laptop Adapter |
|---|---|
Use Scenario: AC–DC front-end rectification in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting 120/230VAC to pulsating DC before PFC and DC–DC stages. Use Value: 250ns tRR minimizes switching loss at 50–100kHz PFC frequencies, improving overall efficiency >90%. | Use Scenario: Input rectification in dual-output 65W USB-C PD adapters with active clamp flyback topology. IC Role / Device Role / Timing Role: Primary-side bridge rectifier handling universal AC input prior to primary switch control. Use Value: 1000V VRRM accommodates 265VAC + 30% surge margin, ensuring robustness against line transients. |
| Home Appliance SMPS | Telecom Wall Adapter |
Use Scenario: Standby power supply in smart washing machines with microcontroller-based motor control. IC Role / Device Role / Timing Role: Low-leakage (5μA) bridge rectifier feeding auxiliary 5V/12V rails during sleep mode. Use Value: Ultra-low IR reduces no-load power consumption below 30mW, meeting Energy Star Level VI requirements. | Use Scenario: Input stage of isolated 12V/1A wall adapter powering VoIP phones and small base stations. IC Role / Device Role / Timing Role: Safety-certified (UL E364304) bridge enabling simplified regulatory approval. Use Value: UL recognition eliminates need for external Y-capacitor filtering in basic isolation schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU3K (ON Semiconductor) | Same 1000V VRRM, 3A IO, but GBU package (larger, through-hole); tRR = 250ns, VF = 1.1V @ 3A | Requires PCB through-hole mounting; higher RθJA (35°C/W) limits power density | Select for legacy through-hole designs where board real estate is not constrained |
| GBU6K (Vishay) | Higher 6A IO rating, same 1000V VRRM and 250ns tRR; VF = 1.15V @ 6A; larger GBU package | Over-specified current capacity increases cost and footprint without benefit in 3A designs | Choose only if future design scaling to >4A is planned and thermal headroom is critical |
Compared with GBU3K and GBU6K, the MRS30M delivers identical electrical performance in a surface-mount MSBL package with superior thermal resistance (RθJC = 2°C/W vs. ~4°C/W for GBU), enabling higher power density and lower profile in modern compact adapters and LED drivers.
Availability
MRS30M is available at Aetrix Electronics and suitable for LED lighting power supplies, desktop/laptop adapters, and home appliance SMPS requiring stable component supply, RoHS-compliant manufacturing, and UL-recognized safety certification.
Supply support for MRS30M 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 and signal integrity solutions for industrial, computing, and consumer markets.
The MRS30M belongs to Diodes' surface-mount bridge rectifier product line, engineered specifically for high-efficiency, compact AC–DC conversion in energy-sensitive applications such as LED drivers and universal-input adapters.
FAQ
What is the maximum operating temperature for the MRS30M?
The MRS30M supports continuous operation from –55°C to +150°C junction temperature. Its rated average output current of 3.0A is specified at TC = +130°C, meaning it must be thermally managed-typically via copper pour or aluminum substrate-to maintain TJ ≤ 150°C under full load.
Is the MRS30M suitable for automotive applications?
The MRS30M is not AEC-Q101 qualified and is not recommended for automotive powertrain or safety-critical systems. While it operates across –55°C to +150°C, Diodes explicitly states that automotive-grade variants require separate qualification, PPAP capability, and IATF 16949 manufacturing-none of which apply to this standard part.
How does the MSBL package compare thermally to traditional GBU packages?
The MSBL package offers RθJC = 2°C/W (measured per element on aluminum plate), significantly lower than typical GBU packages (~3.5–4.5°C/W). This enables more efficient heat transfer to the PCB, supporting higher power density in space-constrained designs without external heatsinks.
Does the MRS30M require derating for capacitive loads?
Yes. Per the datasheet, the average rectified output current must be derated by 20% when used with capacitive-input filters-a common configuration in SMPS and adapters. At full 3.0A rating, this implies a maximum usable current of 2.4A in such topologies to avoid overheating or premature failure.
MRS30M-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1 kV
- Current - Average Rectified (Io):
- 3 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- MSBL
MRS30M-13 FAQ
1.How can I place an order for MRS30M-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for MRS30M-13 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 MRS30M-13 reliable?
The price and inventory of MRS30M-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MRS30M-13 is usually 5 days.
3.What payment methods are accepted for MRS30M-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MRS30M-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MRS30M-13?
MRS30M-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MRS30M-13 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 MRS30M-13?
For technical support, including MRS30M-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MRS30M-13 requirements.
6.How does Aetrix verify that MRS30M-13 is sourced from the original manufacturer or authorized distributors?
All MRS30M-13 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 MRS30M-13 meets industry standards.
7.What is the process for return or replacement of MRS30M-13?
All MRS30M-13 units undergo pre-shipment inspection (PSI). If there is an issue with MRS30M-13, 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 MRS30M-13 part is unused and in its original packaging.
Return procedure for MRS30M-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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