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Diodes Incorporated RDBF310-13
- Part No.:
- RDBF310-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Flat Leads
- Datasheet:
-
RDBF310-13.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 3A DBF
- Quantity:
- Payment:
- Shipping:
Inventory:9,606
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Product details
Overview
RDBF310-13 from Diodes Incorporated is a 1000 V peak repetitive reverse voltage, 3.0 A average rectified output current surface-mount fast bridge rectifier in DBF package, featuring 1.3 V max forward voltage at 2.5 A and 150 ns reverse recovery time, used for AC–DC full-wave rectification in LED lighting power supplies and offline SMPS.
For engineers reviewing the RDBF310-13 datasheet, RDBF310-13 pinout, RDBF310-13 application, or RDBF310-13 equivalent, key selection criteria include VRRM rating, IFSM surge capability (100 A), thermal resistance (RθJC = 5 °C/W), RoHS-compliant lead-free plating, and DBF package footprint compatibility with high-density SMT layouts.
Technical Context
The RDBF310-13 integrates four fast-switching silicon diodes in a single-phase bridge configuration with glass-passivated junctions. Its 150 ns reverse recovery time and low 45 pF typical capacitance per element support high-frequency switching up to several hundred kHz in flyback and forward converters.
Designed for surface-mount assembly, it delivers 3.0 A average output current at TC = +120°C with 100 A non-repetitive surge rating and operates across –55°C to +150°C. Thermal performance relies on low RθJC (5 °C/W) when mounted on an aluminum heatsink pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse voltage in high-line AC inputs (e.g., 230 VAC mains with safety margin) |
| IO (at TC = +120°C) | 3.0 A - Continuous DC output current capability under thermally constrained PCB mounting |
| VFM (at IF = 2.5 A) | 1.3 V - Low conduction loss enabling >85% efficiency in 12–24 V output SMPS designs |
| tRR | 150 ns - Fast recovery minimizes switching losses and EMI in 65–130 kHz switch-mode topologies |
| IFSM (8.3 ms) | 100 A - Handles cold-start inrush and transient surges without failure |
| RθJC | 5 °C/W - Enables direct thermal coupling to metal-core PCB or heatsink for stable junction temperature control |
Pinout & Package
Package: DBF - 4-terminal surface-mount molded plastic package (UL 94V-0), dimensions 6.45–6.85 mm × 8.50–8.90 mm × 1.30–1.50 mm, weight ≈ 0.02 g, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC Input Terminal 1 | One of two alternating-current input nodes; connects to live/neutral line side of transformer secondary |
| ~AC2 | AC Input Terminal 2 | Second AC input node; completes full-wave bridge input path with ~AC1 |
| +DC | Positive DC Output | Anode of output leg; delivers rectified positive voltage to bulk capacitor or regulator input |
| –DC | Negative DC Output / Common Return | Cathode of output leg; serves as system ground reference and return path for load current |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die construction | Enhances long-term reliability and humidity resistance in unsealed consumer and industrial enclosures |
| Miniature DBF package | Reduces PCB area by >40% vs. traditional GBPC or GBU through-hole bridges while maintaining 3 A rating |
| Low leakage current (5 µA @ 25°C) | Minimizes standby power loss in energy-efficient LED drivers and battery charger no-load modes |
| Lead-free, halogen-free "Green" construction | Meets RoHS 3 (2015/863/EU) and automotive-grade environmental compliance without antimony/bromine restrictions |
Applications
| LED Lighting Power Supply | USB-C PD Adapter |
|---|---|
Use Scenario: Off-line constant-voltage driver for commercial LED troffers operating from 100–240 VAC input. IC Role / Device Role / Timing Role: Primary-side full-wave bridge rectifier converting AC line to pulsating DC before PFC and DC–DC stages. Use Value: 1000 V VRRM ensures margin against line transients; 150 ns tRR reduces EMI filtering burden in compact form factors. | Use Scenario: Universal-input 65 W USB-C power adapter with active clamp flyback topology. IC Role / Device Role / Timing Role: Input bridge rectifier delivering 3 A average current to bulk capacitor at 100–130 kHz switching frequency. Use Value: 100 A IFSM withstands repeated cold-start surges; DBF footprint enables automated placement and reflow compatibility. |
| Smart Home Appliance PSU | Telecom Wall Adapter |
Use Scenario: Embedded 12 V/2 A power supply in Wi-Fi-enabled HVAC controller with wide ambient temperature range. IC Role / Device Role / Timing Role: AC–DC front-end rectifier operating continuously at TA = –25°C to +70°C with derated current. Use Value: –55°C to +150°C operating range supports extended thermal envelope; 5 µA IR limits no-load consumption below 30 mW. | Use Scenario: 12 V/1.5 A wall-mounted adapter powering VoIP phones and small network switches. IC Role / Device Role / Timing Role: Compact, low-profile bridge rectifier replacing larger GBU6K to meet UL/EN62368-1 creepage requirements. Use Value: DBF package achieves 8 mm creepage distance across terminals; RoHS 3 compliance satisfies global market access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSB30TM | Successor part: same DBF package, 1000 V VRRM, 3.0 A IO, but improved tRR ≤ 100 ns and lower VFM (1.25 V) | Drop-in replacement with enhanced efficiency; qualified for AEC-Q101 automotive stress testing | Select MSB30TM for new designs requiring longer lifecycle support and tighter parametric consistency. |
| GAB30J | Same DBF package, 1000 V VRRM, 3.0 A IO, but tRR = 250 ns and VFM = 1.35 V; higher IR (10 µA) | Compatible in legacy designs where 150 ns tRR is not critical; wider availability in distribution channels | Choose GAB30J only for cost-sensitive, non-automotive replacements where minor efficiency trade-off is acceptable. |
Compared with RDBF310-13, MSB30TM offers faster switching and automotive qualification, while GAB30J provides broader stock availability at slightly relaxed timing and leakage specs-enabling design continuity or cost optimization depending on program phase and compliance needs.
Availability
RDBF310-13 is available at Aetrix Electronics and suitable for LED lighting power supplies, USB-C PD adapters, smart home appliance PSUs, and telecom wall adapters requiring stable component supply despite its obsolete status.
Supply support for RDBF310-13 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The RDBF310-13 belongs to Diodes' fast bridge rectifier product line, engineered specifically for high-efficiency, space-constrained AC–DC conversion in consumer and industrial power supplies.
FAQ
Is RDBF310-13 still in production?
No. Diodes Incorporated has officially discontinued RDBF310-13 and marked it obsolete per DS39412 Rev. 4 (February 2025). It is superseded by MSB30TM, which maintains identical DBF packaging and electrical ratings while improving tRR and VFM. Aetrix Electronics holds limited legacy stock for last-time buy and BOM continuity support.
What is the maximum operating temperature for RDBF310-13?
The RDBF310-13 has an operating junction temperature range of –55°C to +150°C. At TC = +120°C, it delivers its rated 3.0 A average output current. Derating is required above this case temperature; thermal design must ensure RθJC (5 °C/W) and RθJA (15 °C/W) limits are met using appropriate copper area or heatsinking.
Can RDBF310-13 be used in automotive applications?
RDBF310-13 itself is not AEC-Q101 qualified. Diodes states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing-none of which apply to this obsolete part. For automotive use, select the designated successor MSB30TM, which carries AEC-Q101 qualification and full automotive change control documentation.
What does the "-13" suffix indicate in RDBF310-13?
The "-13" suffix denotes tape-and-reel packaging: 3,000 units per reel in DBF package format, compliant with EIA-481 standard carrier tape. This is the standard shipping configuration for SMT assembly lines and matches the ordering information specified in DS39412 for all RDBF3x variants.
RDBF310-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SMD, Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 @ 2.5 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:
- DBF
RDBF310-13 FAQ
1.How can I place an order for RDBF310-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for RDBF310-13 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 RDBF310-13 reliable?
The price and inventory of RDBF310-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RDBF310-13 is usually 5 days.
3.What payment methods are accepted for RDBF310-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RDBF310-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RDBF310-13?
RDBF310-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RDBF310-13 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 RDBF310-13?
For technical support, including RDBF310-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RDBF310-13 requirements.
6.How does Aetrix verify that RDBF310-13 is sourced from the original manufacturer or authorized distributors?
All RDBF310-13 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 RDBF310-13 meets industry standards.
7.What is the process for return or replacement of RDBF310-13?
All RDBF310-13 units undergo pre-shipment inspection (PSI). If there is an issue with RDBF310-13, 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 RDBF310-13 part is unused and in its original packaging.
Return procedure for RDBF310-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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