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Home > Products > Discrete Semiconductor Products > Diodes > Bridge Rectifiers

Diodes Incorporated RDBF1510U-13

Name: RDBF1510U-13
Brand: Diodes Incorporated
SKU: RDBF1510U-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RDBF1510U-13

Manufacturer:: Diodes Incorporated

Category:: Bridge Rectifiers

Package:: 4-SMD, Flat Leads

Datasheet:: RDBF1510U-13.pdf

Description:: BRIDGE RECT 1PHASE 1KV 1.5A DBF

Quantity:: RFQ Add To RFQ list

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Inventory:6,563

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Product details

Overview

RDBF1510U-13 from Diodes Incorporated is a surface-mount fast bridge rectifier with 1000 V peak repetitive reverse voltage (V_RRM), 1.5 A average output current (I_O), and 1.3 V maximum forward voltage (V_FM) at 1.5 A. It performs full-wave AC-to-DC rectification in compact DBF package, used in SMPS, LED lighting drivers, and AC/DC adapters.

For engineers reviewing the RDBF1510U-13 datasheet, RDBF1510U-13 pinout, RDBF1510U-13 application, or RDBF1510U-13 equivalent, key selection criteria include V_RRM = 1000 V, t_RR = 500 ns, I_FSM = 70 A surge rating, low-leakage IR = 5 µA at 25°C, and RoHS-compliant lead-free plating for SMT assembly.

Technical Context

This discrete bridge rectifier integrates four fast-switching diodes in a single DBF package, configured as a standard full-wave bridge with AC input terminals (AC1, AC2) and DC output terminals (+, −). Its 500 ns reverse recovery time (t_RR) supports high-frequency switching in offline SMPS topologies up to several hundred kHz.

Thermal performance is defined by R_θJC = 10 °C/W (junction-to-case) and R_θJA = 50 °C/W (junction-to-ambient), requiring PCB copper thermal pads per pin for reliable 1.5 A continuous operation at T_C = +110°C. The glass-passivated die ensures stable leakage (<5 µA @ 25°C) across −55°C to +150°C operating range.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - Withstands peak reverse voltage in 120 VAC or 230 VAC mains-fed applications without breakdown.
I_O	1.5 A - Continuous average rectified output current at T_C = +110°C with proper PCB heatsinking.
V_FM	1.3 V @ 1.5 A - Low conduction loss improves efficiency in low-power AC/DC converters and LED drivers.
t_RR	500 ns - Fast recovery minimizes switching losses and EMI in high-frequency flyback and buck-derived topologies.
I_FSM	70 A - Handles 8.3 ms half-sine surge events (e.g., cold-start inrush), enabling robust adapter designs.
IR	5 µA @ 25°C - Low leakage preserves no-load efficiency and reduces standby power in energy-sensitive devices.
CT	25 pF @ 1 MHz / 4 V - Low junction capacitance limits capacitive coupling noise in high-speed rectification paths.

Pinout & Package

Package: DBF - Molded plastic, UL 94V-0 rated, 8.5 mm × 6.45 mm footprint, 1.4 mm height, 0.02 g weight. Moisture sensitivity level 1 (J-STD-020).

Pin/Terminal	Circuit Role	Design Meaning
AC1	AC Input Terminal 1	One leg of AC input; connects to transformer secondary or line filter output.
AC2	AC Input Terminal 2	Second leg of AC input; completes full-wave bridge input path.
+	Positive DC Output	Anode of output diode pair; supplies filtered positive rail to downstream capacitor and regulator.
−	Negative DC Output	Cathode of output diode pair; serves as return path and ground reference for DC output.

Key Features

Feature	Design Value
Glass passivated die	Enables stable IR < 5 µA over temperature and humidity, critical for long-life LED drivers and industrial adapters.
Fast recovery (500 ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in >100 kHz SMPS designs.
70 A surge rating	Supports repeated cold-start conditions without degradation-validated per JEDEC JESD22-A114.
Lead-free, halogen-free	Meets RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb), compliant for global eco-design.

Applications

LED Lighting Driver

AC/DC Adapter

Use Scenario: Rectifying 120/230 VAC input before bulk capacitor and constant-current LED driver IC.

IC Role / Device Role / Timing Role: Full-wave bridge rectifier providing unidirectional DC bus for downstream PWM controller and MOSFET switch.

Use Value: 1000 V V_RRM ensures margin against line transients; 1.3 V V_FM reduces conduction loss in thermally constrained lamp housings.

Use Scenario: Input-stage rectification in wall-plug adapters for consumer electronics (e.g., routers, set-top boxes).

IC Role / Device Role / Timing Role: Discrete bridge converting AC mains to pulsating DC prior to filtering and regulation.

Use Value: 70 A I_FSM withstands repeated plug-in surges; DBF package enables automated placement on dense 2-layer PCBs.

SMPS Primary Side

Home Appliance Power Supply

Use Scenario: Off-line flyback converter input stage in industrial control modules and IoT gateways.

IC Role / Device Role / Timing Role: High-voltage bridge rectifier feeding bulk capacitor and primary-side controller (e.g., UC3842, VIPer).

Use Value: 500 ns t_RR suppresses ringing during MOSFET turn-on, reducing EMI filter component count.

Use Scenario: Power conversion in washing machines, microwaves, and air conditioners with variable load profiles.

IC Role / Device Role / Timing Role: Main AC/DC interface delivering DC bus to PFC stage or isolated DC/DC converter.

Use Value: −55°C to +150°C operating range accommodates under-hood or enclosed cabinet environments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
GBU10K	V_RRM = 1000 V, I_O = 1.0 A, t_RR = 750 ns, larger GBU package (10.5 × 14.5 mm).	Lower current rating and slower recovery limit use in high-efficiency, space-constrained designs.	Select when board area is not constrained and lower cost is prioritized over thermal density.
DF10M	V_RRM = 1000 V, I_O = 1.0 A, V_FM = 1.1 V, DO-15 through-hole package.	Through-hole mounting requires manual insertion or wave soldering; unsuitable for fully SMT lines.	Choose only for legacy repair or mixed-technology boards where reflow compatibility is not required.

Compared with GBU10K and DF10M, RDBF1510U-13 delivers higher current (1.5 A vs. 1.0 A), faster recovery (500 ns vs. ≥750 ns), and SMT-ready DBF packaging-making it optimal for modern, high-density, high-efficiency AC/DC front-ends.

Availability

RDBF1510U-13 is available at Aetrix Electronics and suitable for LED lighting drivers, AC/DC adapters, and home appliance power supplies requiring stable component supply despite its obsolete status-inventory is secured for legacy design support and production continuity.

Supply support for RDBF1510U-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 RDBF1510U-13 belongs to Diodes' fast bridge rectifier product line, engineered specifically for high-reliability, high-efficiency AC/DC conversion in space-constrained consumer and industrial power supplies.

FAQ

Is RDBF1510U-13 still in active production?

No-RDBF1510U-13 is officially obsolete per Diodes' DS39410 Rev. 4 (February 2025). However, Aetrix Electronics maintains secured inventory for ongoing production support, including traceable lots and full documentation. Engineering samples and limited-volume orders remain available under controlled allocation.

What is the thermal pad layout recommendation for RDBF1510U-13?

Per Diodes' datasheet Note 6, each pin requires a 15 mm × 15 mm, 1 oz/ft² copper pad on FR-4 to achieve R_θJA = 50 °C/W. The DBF package's exposed leads act as thermal conduction paths; avoid solder mask over these pads and ensure minimum 0.5 mm clearance between pads and adjacent traces.

Can RDBF1510U-13 replace RDBF158U-13 in an existing design?

Yes-both share identical DBF package, pinout, and thermal characteristics. RDBF1510U-13 offers higher V_RRM (1000 V vs. 800 V) and same I_O, V_FM, and t_RR. No layout or firmware changes are needed; it provides increased voltage margin for designs operating near 800 V rating limits.

Does RDBF1510U-13 meet automotive qualification standards?

No-RDBF1510U-13 is not AEC-Q101 qualified. Diodes explicitly states that automotive-grade variants require separate PPAP-capable part numbers and IATF 16949 manufacturing. For automotive applications, consult Diodes' AEC-Q101-certified bridge rectifier portfolio (e.g., DBF series with "-AQ" suffix).

RDBF1510U-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):: 1.5 A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1.5 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

RDBF1510U-13 FAQ

1.How can I place an order for RDBF1510U-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for RDBF1510U-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 RDBF1510U-13 reliable?

The price and inventory of RDBF1510U-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RDBF1510U-13 is usually 5 days.

3.What payment methods are accepted for RDBF1510U-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RDBF1510U-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RDBF1510U-13?

RDBF1510U-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RDBF1510U-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 RDBF1510U-13?

For technical support, including RDBF1510U-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RDBF1510U-13 requirements.

6.How does Aetrix verify that RDBF1510U-13 is sourced from the original manufacturer or authorized distributors?

All RDBF1510U-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 RDBF1510U-13 meets industry standards.

7.What is the process for return or replacement of RDBF1510U-13?

All RDBF1510U-13 units undergo pre-shipment inspection (PSI). If there is an issue with RDBF1510U-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 RDBF1510U-13 part is unused and in its original packaging.

Return procedure for RDBF1510U-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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