PLA51 www.vishay.com Vishay Sfernice Medium Power Planar Transformer 1 kW to 3 kW FEATURES * For high power density DC/DC converter application * Very low profile and weight * High efficiency: > 99 % * Recommended frequency range (50 kHz; 400 kHz) * Operating temperature range: -55 C; 125 C with heat sink dissipation * Easy-assembly system for cold plates In addition to this standard design of PLA51 many custom designs can be offered upon request * Tapped output terminals * Material temperature grade: 180 C LINKS TO ADDITIONAL RESOURCES * Excellent repeatability 3D 3D * Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 3D Models QUICK REFERENCE DATA Type Transformer Size (L x W x H) 70 mm x 53 mm x 22 mm Terminals Tapped outputs or wires Power 1000 W to 3000 W Frequency range 50 kHz to 400 kHz Inductance range 96 H to 160 H EXAMPLE OF TRANSFORMER APPLICATION: 2 kW DC/DC CONVERTER, PLA51LA32 POWER SUPPLY TOPOLOGY Full bridge with current doubler FREQUENCY POWER INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT DUTY CYCLE MAX. 100 kHz 2 kW 50 VDC to 110 VDC 30 V 67 A 0.98 STANDARD ELECTRICAL CHARACTERISTICS INDUCTANCE (10 kHz; 0.1 V) LEAKAGE INDUCTANCE (10 kHz; 0.1 V) TURN RATIO POWER LOSSES EFFICIENCY HIPOT: PRIMARY / SECONDARY + CORE 1500 VAC HIPOT: SECONDARY / CORE 128 H 25 % < 150 nH (typical) 3:2 < 17 W > 99 % < 150 A < 150 A Revision: 10-Nov-2020 Document Number: 59059 1 For technical questions, contact: sferaztronics@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 PLA51 www.vishay.com Vishay Sfernice RECOMMENDATIONS FOR MOUNTING Announced performances are achieved using a liquid cooling system. The internal temperature must be maintained below 160 C. The user shall correctly size its own heatsink according to real working conditions of his device. PACKAGING Individual box. ELECTRICAL SCHEMES DIMENSIONS in millimeters ( 0.5) 22 max. 53 max. 11.6 1.1 25.8 3 1 8.4 0.7 4 3 PLA51LA32 70 max. 58 x 4 M4 threaded nuts AZ YY-WW 2 4 6.8 0.6 1 2 35.2 13.2 1.1 General tolerance: 0.5 mm Notes * Weight 170 g * Take care of ferrite core while handling (no shock admitted) * Terminal fixing: with M4 screw, max. tightening: 1.2 Nm SAP PART NUMBERING MODEL SIZE STYLE FOOTPRINT RATIO SPECIAL PLA 51 L = leadframe with nuts W = wires A = as shown in above drawings (other upon request) 21 = 2 : 1 (on request) 31 = 3 : 1 (on request) 32 = 3 : 2 SR = special ratio XXXXX = special code (6 digits) RELATED DOCUMENTS APPLICATION NOTES Designing With the PLA51 Planar Transformer for Enhanced Power Density and Efficiency Revision: 10-Nov-2020 www.vishay.com/doc?59063 Document Number: 59059 2 For technical questions, contact: sferaztronics@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Legal Disclaimer Notice www.vishay.com 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. 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