BYT77, BYT78 Vishay Semiconductors Fast Avalanche Sinterglass Diode FEATURES • Glass passivated junction • Hermetically sealed package • Low reverse current • Soft recovery characteristics • Controlled avalanche characteristics • Compliant to RoHS directive 2002/95/EC and in accordance to WEEE 2002/96/EC 949588 MECHANICAL DATA • Halogen-free according to IEC 61249-2-21 definition Case: SOD-64 Terminals: plated axial leads, solderable per MIL-STD-750, method 2026 APPLICATIONS • Fast “soft recovery” rectification diode Polarity: color band denotes cathode end Mounting position: any Weight: approx. 858 mg PARTS TABLE PART TYPE DIFFERENTIATION PACKAGE BYT77 VR = 800 V; IFAV = 3 A SOD-64 BYT78 VR = 1000 V; IFAV = 3 A SOD-64 ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified) PARAMETER TEST CONDITION Reverse voltage = repetitive peak reverse voltage Peak forward surge current See electrical characteristics PART SYMBOL VALUE UNIT BYT77 VR = VRRM 800 V BYT78 VR = VRRM 1000 V tp = 10 ms, half sine wave IFSM 100 A Average forward current Tamb ≤ 45 °C IFAV 3 A Non repetitive reverse avalanche energy I(BR)R = 0.4 A ER 10 mJ Tj = Tstg - 55 to + 175 °C Junction and storage temperature range MAXIMUM THERMAL RESISTANCE (Tamb = 25 °C, unless otherwise specified) PARAMETER Junction ambient TEST CONDITION SYMBOL VALUE UNIT Lead length l = 10 mm, TL = constant RthJA 25 K/W On PC board with spacing 25 mm RthJA 70 K/W ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified) PARAMETER Forward voltage Reverse current Reverse recovery time Document Number: 86034 Rev. 1.8, 30-Jul-10 TEST CONDITION SYMBOL MIN. TYP. MAX. IF = 3 A PART VF - 1 1.2 V VR = VRRM IR - 1 5 μA VR = VRRM, Tj = 150 °C IR - 60 150 μA IF = 0.5 A, IR = 1 A, iR = 0.25 A trr - - 250 ns For technical questions within your region, please contact one of the following: [email protected], [email protected], [email protected] UNIT www.vishay.com 1 BYT77, BYT78 Fast Avalanche Sinterglass Diode Vishay Semiconductors 40 3.5 IFAV - Average Forward Current (A) RthJA - Ther. Resist. Junction/Ambient (K/W) TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified) 30 20 l l 10 TL = constant 2.0 1.5 RthJA = 70 K/W PCB: d = 25 mm 1.0 0.5 0 0 5 10 15 20 25 30 l - Lead Length (mm) 0 20 40 60 80 100 120 140 160 180 Tamb - Ambient Temperature (°C) 16371 Fig. 1 - Max. Thermal Resistance vs. Lead Length Fig. 4 - Max. Average Forward Current vs. Ambient Temperature 1000 240 VR = VRRM 200 IR - Reverse Current (μA) Tj - Junction Temperature (°C) RthJA = 25 K/W I = 10 mm 2.5 0 949466 VRRM 160 VR 120 80 RthJA = 70 K/W 40 100 10 1 25 0 0 949467 200 400 600 800 1000 VR, VRRM - Rev./Rep. Peak Rev. Voltage (V) Fig. 2 - Junction Temperature vs. Reverse/Repetitive Peak Reverse Voltage 10 Tj = 175 °C 1 Tj = 25 °C 0.1 0.01 0.001 0 16370 0.5 1.0 1.5 2.0 Fig. 3 - Forward Current vs. Forward Voltage www.vishay.com 2 75 100 125 150 175 Fig. 5 - Reverse Current vs. Junction Temperature 450 VR = VRRM 400 350 300 PR-Limit at 100 % VR 250 200 150 PR-Limit at 80 % VR 100 50 0 25 2.5 VF - Forward Voltage (V) 50 Tj - Junction Temperature (°C) 16372 PR - Reverse Power Dissipation (mW) 100 IF - Forward Current (A) VR = VRRM half sinewave 3.0 16373 50 75 100 125 150 175 Tj - Junction Temperature (°C) Fig. 6 - Max Reverse Power Dissipation vs. Junction Temperature For technical questions within your region, please contact one of the following: [email protected], [email protected], [email protected] Document Number: 86034 Rev. 1.8, 30-Jul-10 BYT77, BYT78 Fast Avalanche Sinterglass Diode Vishay Semiconductors CD - Diode Capacitance (pF) 90 f = 1 MHz 80 70 60 50 40 30 20 10 0 0.1 1 10 100 VR - Reverse Voltage (V) 16374 Fig. 7 - Diode Capacitance vs. Reverse Voltage PACKAGE DIMENSIONS in millimeters (inches): SOD-64 Sintered Glass Case SOD-64 Cathode Identification 4.3 (0.168) max. 1.35 (0.053) max. 26(1.014) min. 4 (0.156) max. 26 (1.014) min. Document-No.: 6.563-5006.4-4 Rev. 3 - Date: 09.February.2005 94 9587 Document Number: 86034 Rev. 1.8, 30-Jul-10 For technical questions within your region, please contact one of the following: [email protected], [email protected], [email protected] www.vishay.com 3 Legal Disclaimer Notice Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 11-Mar-11 www.vishay.com 1