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Diodes Incorporated RS3MB-13
- Part No.:
- RS3MB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS3MB-13.pdf
- Description:
- DIODE GEN PURP 1KV 3A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:7,333
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Product details
Overview
RS3MB-13 from Diodes Incorporated is a 1000 V, 3.0 A surface-mount fast recovery rectifier in SMB (DO-214AA) package, featuring 150 ns reverse recovery time, 1.3 V forward voltage at 3.0 A, and 100 A non-repetitive surge capability - deployed in AC/DC front-end rectification for industrial power supplies and LED drivers.
For engineers reviewing the RS3MB-13 datasheet, RS3MB-13 pinout, RS3MB-13 application, or RS3MB-13 equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), thermal resistance (25 K/W), junction-to-terminal cooling path, and fast recovery performance under high-frequency switching conditions.
Technical Context
This device uses glass-passivated silicon die to achieve stable reverse blocking and low leakage across -65°C to +150°C operating range. Its 150 ns recovery time (measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A) enables efficient operation in 20–100 kHz SMPS topologies.
The SMB package provides defined thermal interface via solderable terminals per MIL-STD-202 Method 208, with 0.09 g mass and UL 94V-0 flammability rating. Junction capacitance is 50 pF at 1.0 MHz and 4.0 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification in 800 VAC line-connected systems with safety margin |
| IO @ TT=75°C | 3.0 A - continuous DC output current with PCB copper pad heatsinking (5.0 mm²) |
| VFM @ IF=3.0A | 1.3 V - limits conduction loss to ≤3.9 W at full rated current |
| trr | 150 ns - reduces switching losses and EMI in high-frequency flyback and PFC stages |
| IFSM | 100 A - withstands inrush surges during cold-start of offline power supplies |
| RJT | 25 K/W - defines temperature rise per watt dissipated when mounted on specified copper pad |
| IRM @ 125°C | 250 µA - ensures low leakage in high-temperature industrial environments |
Pinout & Package
SMB (DO-214AA) surface-mount package with cathode band marking; molded plastic case, solder-plated terminals, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input / switch node connection | Accepts alternating input; must handle peak inverse voltage and surge current |
| Cathode | DC output / positive rail connection | Delivers rectified output; carries full average load current and thermal load |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures long-term reliability and stable IR under humidity and thermal cycling |
| Fast recovery (150 ns) | Reduces reverse recovery charge (Qrr) to minimize switching loss in 65–100 kHz converters |
| UL 94V-0 plastic case | Meets flame-retardancy requirements for enclosed industrial and lighting equipment |
| JEDEC-compliant SMB footprint | Enables automated placement and reflow compatibility with standard SMT lines |
| 100 A surge rating | Supports robust startup behavior without derating in 115/230 VAC universal-input designs |
Applications
| Industrial AC/DC Power Supply | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 230 VAC mains input in open-frame 30–60 W industrial power supplies. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC to pulsating DC before bulk capacitor and PWM controller. Use Value: 1000 V VRRM prevents breakdown during line transients; 150 ns trr lowers EMI generation near 65 kHz switching frequency. | Use Scenario: Input rectification in constant-current LED drivers for street lighting and high-bay fixtures. IC Role / Device Role / Timing Role: Front-end diode in bridge or single-phase configuration feeding boost PFC stage. Use Value: Low VFM (1.3 V) minimizes conduction loss at 3 A average current; SMB package fits compact driver PCB layouts. |
| UPS Battery Charger Input | Motor Drive Auxiliary Power |
Use Scenario: Mains rectification in line-interactive UPS units with battery backup and inverter output. IC Role / Device Role / Timing Role: High-voltage input rectifier handling both utility and generator-sourced AC inputs. Use Value: 100 A IFSM sustains repeated cold starts; -65°C to +150°C Tj range accommodates sealed enclosure thermal profiles. | Use Scenario: Auxiliary DC supply generation for gate drivers and control logic in 3-phase inverter modules. IC Role / Device Role / Timing Role: Isolated auxiliary rectifier fed from small transformer secondary. Use Value: 25 K/W RJT allows direct mounting to metal-core PCB for thermal management; UL 94V-0 meets motor control safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IO, 75 ns trr, TO-277 package | Limited to ≤600 V line applications; faster recovery but lower voltage rating | Select when system peak voltage stays below 420 V RMS and lower Qrr is critical |
| ES3J-E3/57T | 600 V VRRM, 3 A IO, 35 ns trr, SMB package | Higher cost, tighter trr spec, same footprint but insufficient for 1000 V designs | Use only where 600 V rating is sufficient and ultra-fast recovery is required |
Compared with RS3MB-13, STTH3L06S offers faster recovery but half the voltage rating, while ES3J-E3/57T matches the SMB footprint but cannot replace it in 1000 V applications - RS3MB-13 remains optimal for high-voltage, thermally constrained industrial rectification.
Availability
RS3MB-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, UPS battery chargers, and motor drive auxiliary power requiring stable component supply and long-lifecycle support.
Supply support for RS3MB-13 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity.
RS3MB-13 belongs to the RS3x fast recovery rectifier product line, engineered for high-efficiency, high-voltage AC/DC conversion in space-constrained industrial and lighting applications.
FAQ
What is the maximum allowable junction temperature for RS3MB-13?
The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation across -65°C to +150°C storage and operating ranges. Derating begins at terminal temperatures above 75°C, where average forward current drops linearly to zero at 150°C per Figure 1 in the datasheet.
Can RS3MB-13 be used in a full-wave bridge configuration?
Yes - RS3MB-13 is a single anode-cathode diode and can be used in discrete full-wave bridge designs. Four units are required per bridge; ensure matching VFM and trr across all four devices to balance conduction and switching losses in high-frequency operation.
Is RS3MB-13 compliant with lead-free and RoHS requirements?
Yes - RS3MB-13 is manufactured with lead-free terminations and complies with EU RoHS Directive 2011/65/EU and JEDEC JS709B. The SMB package uses matte tin plating over copper alloy leads, qualified per J-STD-020 moisture sensitivity level 1.
How does the 25 K/W thermal resistance translate to real-world PCB layout?
RJT = 25 K/W assumes mounting on a 5.0 mm² (0.013 mm thick) copper pad acting as a thermal plane. To achieve this, use solid inner-layer copper pours connected via ≥4 thermal vias (0.3 mm diameter) under the cathode pad, minimizing trace length between diode and bulk capacitor ground return.
RS3MB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
RS3MB-13 FAQ
1.How can I place an order for RS3MB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RS3MB-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 RS3MB-13 reliable?
The price and inventory of RS3MB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS3MB-13 is usually 5 days.
3.What payment methods are accepted for RS3MB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3MB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS3MB-13?
RS3MB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS3MB-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 RS3MB-13?
For technical support, including RS3MB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3MB-13 requirements.
6.How does Aetrix verify that RS3MB-13 is sourced from the original manufacturer or authorized distributors?
All RS3MB-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 RS3MB-13 meets industry standards.
7.What is the process for return or replacement of RS3MB-13?
All RS3MB-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS3MB-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 RS3MB-13 part is unused and in its original packaging.
Return procedure for RS3MB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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