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Document number: DS39411 Rev. 2 - 2 1 of 5 www.diodes.com June 2018 © Diodes Incorporated RDBF251-RDBF2510 ADVANCED INFORMATION NEW PRODUCT 2.5A SURFACE MOUNT FAST GLASS PASSIVATED BRIDGE RECTIFIER Product Summary (@TA = +25° C) VRRM (V) IO (A) VFM (V) IR (μA) 1000,800,600, 400,200,100 2.5 1.3 5 Description and Applications Suitable for AC to DC bridge full wave rectification for SMPS, LED lighting, adapter, battery charger, home appliances, office equipment, and telecommunication applications. Features and Benefits  Glass Passivated Die Construction  Miniature Package Saves Space on PC Boards  Fast Recovery Time for Higher Efficiency  Low Leakage Current  Ideal for SMT Manufacturing  Low Forward Voltage Drop  Surge Overload Rating to 75A Peak  Lead-Free Finish; RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3) Mechanical Data  Case: DBF  Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0  Moisture Sensitivity: Level 1 per J-STD-020  Terminals: Lead Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208  Polarity: As Marked on Body  Weight: 0.02 grams (Approximate) Ordering Information (Note 4) Part Number Compliance Case Packaging RDBF2510-13 Commercial DBF 3,000/Tape & Reel RDBF258-13 Commercial DBF 3,000/Tape & Reel RDBF256-13 Commercial DBF 3,000/Tape & Reel RDBF254-13 Commercial DBF 3,000/Tape & Reel RDBF252-13 Commercial DBF 3,000/Tape & Reel RDBF251-13 Commercial DBF 3,000/Tape & Reel Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 2. See https://www.diodes.com/quality/lead -free/ for more information about Diodes Incorporated’s definitions of Halogen - and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes -packaging/. Marking Information Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Code 1 2 3 4 5 6 7 8 9 O N D Green Top View Internal Schematic RDBF25x(x) = Product Type Marking Code = Manufacturers’ Code Marking YMD = Date Code Marking Y = Last Digit of Year (ex: 8 = 2018) M = See Month/Code Table Below D = Day 1 to 9 = 1 to 9; Day 10 to 31 = A to V RDBF25x(x) YMD

Document number: DS39411 Rev. 2 - 2 2 of 5 www.diodes.com June 2018 © Diodes Incorporated RDBF251-RDBF2510 ADVANCED INFORMATION NEW PRODUCT Maximum Ratings and Electrical Characteristics (@TA = +25° C, unless otherwise specified.) Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Characteristic Symbol RDBF251 RDBF252 RDBF254 RDBF256 RDBF258 RDBF2510 Unit Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage VRRM VRWM VR 100 200 400 600 800 1000 V RMS Reverse Voltage VR(RMS) 70 140 280 420 560 700 V Average Rectified Output Current (Note 5) @ TC = +110°C IO 2.5 A Non-Repetitive Peak Forward Surge Current, 8.3ms Single Half Sine-Wave Superimposed on Rated Load IFSM 75 A I2t Rating for Fusing (1ms < t < 8.3ms) I2t 23.34 A2S Max Forward Voltage (Per Element) @IF=2.5A VFM 1.3 V Maximum Reverse Recovery Time (Note 7) tRR 150 250 500 ns Peak Reverse Current @TA=+25℃ At Rated DC Blocking Voltage @TA=+125℃ (Note 8) IR 5.0 500 µA Total Capacitance (Per Element) (Note 9) CT 30 pF Thermal Characteristics Characteristic Symbol Value Unit Typical Thermal Resistance, Junction to Ambient (Note 6) (Per Element) RθJA 35 °C/W Typical Thermal Resistance, Junction to Case (Per Element) RθJC 7.8 °C/W Operating and Storage Temperature Range TJ, TSTG -55 to +150 °C Notes: 5. Device mounted on glass epoxy PC board with 1.3mm2 solder pad. 6. Device mounted on glass epoxy substrate with 1oz/ft2, 30mmx30mm copper pad per pin. 8. Short duration pulse test used to minimize self-heating effect. 9. Measured with VR = 4.0VDC, f = 1MHz

Document number: DS39411 Rev. 2 - 2 3 of 5 www.diodes.com June 2018 © Diodes Incorporated RDBF251-RDBF2510 ADVANCED INFORMATION NEW PRODUCT 0.01 0.1 100 IF, INSTANTANEOUS FORWARD CURRENT (A) VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics (Per Leg) -55℃ 25℃ 150℃ 125℃ 85℃ 100℃ 100 0 20 40 60 80 100 CT, TOTAL CAPACITANCE (pF) VR, REVERSE VOLTAGE (V) Fig. 4 Typical Junction Capacitance Note 5 f = 1MHz 0.001 0.01 0.1 100 REVERSE LEAKAGE CURRENT (µA) 150℃ -55℃ 25℃ 125℃ 85℃ 100℃ Fig.5 Typical Reverse Characteristics VR, PERCENTAGE RATED PEAK REVERSE VOLTAGE (%)

Document number: DS39411 Rev. 2 - 2 4 of 5 www.diodes.com June 2018 © Diodes Incorporated RDBF251-RDBF2510 ADVANCED INFORMATION NEW PRODUCT Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. DBF Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. DBF DBF Dim Min Max Typ A 1.30 1.50 -- A1 0.04 0.12 -- A3 0.15 0.35 -- b 0.80 1.20 -- D 6.45 6.85 -- D3 3.80 4.20 -- E 8.50 8.90 -- E1 7.80 8.20 -- e 4.80 5.20 -- L 0.80 1.40 -- L1 0.30 0.40 -- All Dimensions in mm Dimensions Value (in mm) C 5.00 C1 7.60 X 1.40 Y 1.60 E D e b L AA1 A3D3 X C Y

Document number: DS39411 Rev. 2 - 2 5 of 5 www.diodes.com June 2018 © Diodes Incorporated RDBF251-RDBF2510 ADVANCED INFORMATION NEW PRODUCT IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other c hanges without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license unde r its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products d escribed herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diod es Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising ou t of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product name s and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this docum ent is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided i n the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety -critical, life support devices or systems, notwithstanding any devices - or systems -related information or support that may be provided by Diodes Incorporated. Further, Cust omers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2018, Diodes Incorporated www.diodes.com