High Frequency Wire Wound Transformers EFD20 Platforms - SMT Power Range: up to 95W Height: 11.4mm Max Footprint: 29.2mm x 21.8mm Max Toplogy: Forward and Flyback Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C PA0273NL Pri. Inductance (1, 2-3, 4) 307µH ±25% Lk. Inductance (1, 2-3, 4) with (5, 6, 9, 10) shorted 0.35µH MAX (1, 2-3, 4) 65mΩ MAX (7, 8, 9-10, 11, 12) 27mΩ MAX (5-6) 240mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 20.2 Pri. Inductance (1, 2-3, 4) 110µH ±10% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 2µH MAX (4-5) 85mΩ MAX (12, 11, 10-9, 8, 7) 12mΩ MAX (1-3) 300mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 1364.8 Pri. Inductance (1, 2-5, 4) 89.2µH ±18% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 1.5µH MAX (1, 2-3,4) 50mΩ MAX (12-11) 3.8mΩ MAX (10-9)=(8-7) 35mΩ MAX (5-6) 110mΩ MAX Hi-Pot Pri-Sec 1500Vdc K1 Factor 21.5 DCR PA0751NL DCR PA0769NL DCR USA 858 674 8100 Germany 49 7032 7806 0 1 Singapore 65 6287 8998 pulseelectronics.com Shanghai 86 21 62787060 FORWARD TRANSFORMER FLYBACK TRANSFORMER FORWARD TRANSFORMER China 86 755 33966678 Taiwan 886 3 4356768 P666.C (07/15) High Frequency Wire Wound Transformers EFD20 Platforms - SMT Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C PA1066NL Pri. Inductance (3-4) 137µH ±32% Lk. Inductance (3-4) with (11, 10, 9, 8) shorted 1.0µH MAX (3-4) 35mΩ MAX (1-2) 199mΩ MAX (5-6) 100mΩ MAX (11-10)=(9-8) 17mΩ MAX Hi-Pot Pri-Sec 500Vrms K1 Factor 29.3 Pri. Inductance (2, 3-4, 5) 10µH ±10% Lk. Inductance (2, 3-4, 5) with (11, 8) shorted 0.3µH MAX (2, 3-4, 5) 15.75mΩ MAX (11-8) 560mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 322.6 Pri. Inductance (1, 2-3, 4) 38.3µH ±7% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 1.0µH MAX (1-3) 72mΩ MAX (2-4) 85mΩ MAX (12, 11, 10-9, 8, 7) 2.5mΩ MAX (5-6) 230mΩ MAX Hi-Pot Pri-Sec 1800Vrms K1 Factor 772.2 Pri. Inductance (1, 2-3, 4) 11.5µH ±10% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 0.5µH MAX (1, 2-3, 4) 28mΩ MAX (8-7) 12mΩ MAX (12-11) 5mΩ MAX (10-9) 62mΩ MAX (5-6) 190mΩ MAX Pri-Sec 1500Vrms DCR PA1366NL DCR PA1477NL DCR PA1558NL DCR Hi-Pot 463.7 2 pulseelectronics.com FORWARD TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER P666.C (07/15) High Frequency Wire Wound Transformers EFD20 Platforms - SMT Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C PA1692NL Pri. Inductance (3, 4-5, 6) 73µH ±30% Lk. Inductance (3, 4-5, 6) with (12, 11, 10, 9, 8, 7) shorted 1.0µH MAX (3, 4-5, 6) 10.2mΩ MAX (12, 11, 10-9, 8, 7) 5mΩ MAX (1-2) 115mΩ MAX Hi-Pot Pri-Sec 1500Vdc K1 Factor 40.3 Pri. Inductance (1, 2-3, 4) 28.5µH ±5% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 1µH MAX (1, 2-3, 4) 39.0mΩ MAX (12, 11, 10-9, 8, 7) 3.5mΩ MAX (5-6) 230mΩ MAX Hi-Pot Pri-Sec 1800Vrms K1 Factor 574.6 Pri. Inductance (1, 2-3, 4) 20.5µH ±5% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 1µH MAX (1, 2-3, 4) 39.0mΩ MAX (12, 11, 10-9, 8, 7) 8.5mΩ MAX (5-6) 230mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 413.3 Pri. Inductance (1, 2-3, 4) 4.5µH ±5% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 0.25µH MAX (1, 2-3, 4) 9.5mΩ MAX (12, 11, 10-9, 8, 7) 3mΩ MAX (5-6) 130mΩ MAX Hi-Pot Pri-Sec 1800Vrms K1 Factor 241.9 Pri. Inductance (1, 2-3, 4) 4.5µH ±5% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 0.2µH MAX (1, 2, 3, 4) 9.5mΩ MAX (12, 11, 10-9, 8, 7) 5mΩ MAX (5-6) 130mΩ MAX Hi-Pot Pri-Sec 1800Vrms K1 Factor 241.9 DCR PA1735NL DCR DCR PA1736NL DCR PA1835NL DCR PA1836NL 3 pulseelectronics.com FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER P666.C (07/15) High Frequency Wire Wound Transformers EFD20 Platforms - SMT Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C PA1837NL Pri. Inductance (1, 2-3, 4) 4.5µH ±5% Lk. Inductance (1, 2-3, 4) with (12, 11, 10, 9, 8, 7) shorted 0.2µH MAX (1, 2, 3, 4) 9.5mΩ MAX (12, 11, 10-9, 8, 7) 23mΩ MAX (5-6) 130mΩ MAX Hi-Pot Pri-Sec 1800Vdc K1 Factor Pri. Inductance 241.9 (1-3) 7.2µH ±5% Lk. Inductance (1-3) with (11, 10-9, 7) shorted 0.3µH MAX (1-3) 52mΩ MAX (11, 10-9, 7) 12mΩ MAX (5-6) 240mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 290.3 Pri. Inductance (1, 2-5, 6) 292.0µH ±32% Lk. Inductance (1, 2-5, 6) with (12, 11, 10, 9, 8, 7) shorted 1.3µH MAX (1, 2-5, 6) 78.0mΩ MAX (7, 8-9, 10) 12mΩ MAX (11-12) 43mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 20.2 Pri. Inductance (1-4) 57.6µH ±12% Lk. Inductance (1-4) with (all windings) shorted 0.5µH MAX (1-4) 65mΩ MAX (3-2) 155mΩ MAX (6-5) 145mΩ MAX (7, 8-9, 10) 4mΩ MAX (11-12) 55mΩ MAX Hi-Pot Pri-Sec 1500Vdc K1 Factor 26.9 Pri. Inductance (1,2-3.4) 100µH ±12% Lk. Inductance (1, 2-3, 4) with (5, 6, 9,1 0) shorted 0.45µH MAX (1, 2-3, 4) 72µH MAX (7, 8, 9-10, 11, 12) 15µH MAX (5-6) 680µH MAX Pri-Sec 1500Vrms DCR DCR PA2047NL DCR PA2053NL PA2291NL DCR PA2398NL DCR Hi-Pot 16.1 4 pulseelectronics.com FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER FLYBACK TRANSFORMER P666.C (07/15) High Frequency Wire Wound Transformers EFD20 Platforms - SMT Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C Pri. Inductance (1-6) with (3-4) shorted 491µH ±35% Lk. Inductance (1-6) with (all windings) shorted 1µH MAX (1-3) 36.1mΩ MAX (4-6) 45.6mΩ MAX (8-7) 86.4mΩ MAX (11-9) 86.4mΩ MAX (12-10) 47.8mΩ MAX Hi-Pot Pri-Sec 1500Vrms K1 Factor 16.1 Pri. Inductance (5, 4-3, 2) 112.0µH MAX Lk. Inductance (5, 4-3, 2) with (all windings) shorted 1µH MAX (5-3) 55mΩ MAX (4-2) 67.7mΩ MAX (10, 11-8, 9) 5.5mΩ MAX (12-7) 123mΩ MAX (6-1) 923mΩ MAX Hi-Pot Pri-Sec 1500Vdc K1 Factor 24.8 DCR PB2041NL PB2089NL DCR 5 pulseelectronics.com FORWARD TRANSFORMER FORWARD TRANSFORMER P666.C (07/15) High Frequency Wire Wound Transformers EFD20 Platforms - SMT Notes: 1. The temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. 2. The above transformers and inductors have been tested and approved by Pulse’s power IC partners and are sited in the appropriate datasheet or evaluation board documentation at these companies. To determine which IC and IC partners are matched with the above Pulse part numbers please consult the IC Cross Reference on the Pulse website. 3. For flyback topology applications, it is necessary to ensure that the transformer will not saturate in the application. The peak flux density (Bpk) should remain below 2700Gauss. To calculate the peak density, use the following formula: Bpk (Gauss) = K1_Factor * Ipk (A) 4. In high volt-sec applications, it is important to calculate the core loss of the transformer. Approximate transformer core loss can be calculated as: CoreLoss (W) = 1.32E-13 * (Freq_kHz)1.63 * (ΔB_Gauss) 2.63 where ΔB can be calculated as: For Flyback Topology: ΔB = K1_Factor * (A) For Forward Topology: ΔB = K1_Factor * Volt-µsec 5. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (i.e. PA0273NL becomes PA0273NLT). Pulse complies with industry standard tape and reel specification EIA481. The tape and reel for this product has a width (W=44mm), pitch (Po=32mm) an depth (Ko=11.78mm). 6. The “NL” suffix indicates an RoHS-compliant part number. Non-NL suffixed parts are not necessarily RoHS compliant, but are electrically and mechanically equivalent to NL versions. If a part number does not have the “NL” suffix, but an RoHS compliant version is required, please contact Pulse for availability. Mechanical PAXXXXNL / PBXXXXNL For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia B402, Shenzhen Academy of Room 2704/2705 135 Joo Seng Road 3F, No. 198 Aerospace TechnolSuper Ocean Finance #03-02 Zhongyuan Road ogy Bldg. Ctr. PM Industrial Bldg. Zhongli City 10th Kejinan Road 2067 Yan An Road Singapore 368363 Taoyuan County 320 High-Tech Zone West Taiwan R. O. C. Nanshan District Shanghai 200336 Tel: 886 3 4356768 Shenzen, PR China China Tel: 65 6287 8998 Fax: 886 3 4356823 (Pulse) Tel: 858 674 8100 Tel: 49 7032 78060 518057 Fax: 65 6287 8998 Fax: 886 3 4356820 (FRE) Fax: 858 674 8262 Fax: 49 7032 7806 135 Tel: 86 755 33966678 Tel: 86 21 62787060 Fax: 86 755 33966700 Fax: 86 2162786973 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2015. Pulse Electronics, Inc. All rights reserved. 6 pulseelectronics.com P666.C (07/15)