High Frequency Wire Wound Transformers EF25 Platforms - THT Type AC/DC and DC/DC Switching Transformers Electronics Reinforced Insulation 3000Vrms Hi-pot Topology: Flyback Custom Design Available Electrical Specifications @ 25°C — Operating Temperature -40°C to 130°C 1 Hi-Pot K1 Factor Pri. Inductance Lk. Inductance w/ PA2942NL DCR Hi-Pot K1 Factor 10 10 PRI NOTES: PRI 100-400VDC 40-130kHz 396.9 uH, 1.67Apk VIN: 100-400VDC Freq=:40-130KHZ 9 1 AUX 12V, 20mA 9 1 AUX 12V, 20mA 2 6 SEC 12V, 1.25A 7 4 SEC 12V, 1.25A Y DCR 396.9 µH ± 10% 13.8 µH MAX shorted 515 25 m Ω Max 305 31 3000 Vrms 3(NC) 2 3(NC) 5 8(NC) DM FLYBACK TRANSFORMER AR PA2380NL (10-9) (10-9) (1,2,4,5,6,7) (10-9) (7-6) (2-1) (5-4) Pri-Sec 1557.7 (3-2) (3-2) (4,5,7,8,9,10) (3-2) (7-8) (10-9) (4-5) Pri-Sec 675.5 137.0 µH ± 5% 10 µH MAX shorted 300 47.5 m Ω Max 49.5 66 3000 Vrms 2 10 PRI 9 1 AUX 12V, 20mA 2 3(NC) 9 SEC-2 22.3V, 1A 3 4 AUX 14.6V, 30mA 5 1(NC) 10 8 SEC-1 22.3V, 1A 7 6(NC) DM FLYBACK TRANSFORMER 3. In high volt-µsec applications, it is important to calculate the core loss of the transformer. Approximate transformer core loss can be calculated as: CoreLoss (W) = 3.9E-13 * (Freq_kHz)1.63 * (DB_Gauss)2.63 where DB can be calculated as: For Flyback Topology: DB = K1_Factor * D(A) For Forward Topology: DB = K1_Factor * Volt-µsec 4. 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. PR EL IM 1. The temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. 2. 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 flux density use the following formula: Bpk (Gauss) = K1_Factor * Ipk(A) PRI 85-264VDC 100kHz 396.9 uH, 1.67Apk VIN: 100-400VDC Freq=:40-130KHZ IN Pri. Inductance Lk. Inductance w/ USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 4643715 www.pulseelectronics.com 1 PRELIMINARY P694.A (1/11) High Frequency Wire Wound Transformers EF25 Platforms - THT Type Electronics Mechanical 1.122 MAX [28.50] 10 6 PAXXXX DATE CODE .709 MAX [18.00] COUNTRY OF ORIGIN 5 IN 1 PIN 1 ID AR Y PAXXXX IM 1.102 MAX [28.00] 1 EL .14 [3.6] PIN 1 ID 1 .200 (8X) 5 ø.032 (10X) [ø0.81] 6 .50 [12.70] HOLE ARRANGEMENT COMPONENT SIDE PR .200 [5.08] .50 For More Information: Pulse North America Pulse European Headquarters Headquarters 12220 World Trade Dr. San Diego, CA 92128 U.S.A. Einsteinstrasse 1 D-71083 Herrenberg Germany TEL: 858 674 8100 FAX: 858 674 8262 TEL: 49 7032 7806 0 FAX: 49 7032 7806 12 Pulse China Headquarters B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Rd. High-Tech Zone Nanshan District Shenzen, PR China 518057 TEL: 86 755 33966678 FAX: 86 755 33966700 Pulse North China Pulse South Asia Pulse North Asia TEL: 86 21 32181071 FAX: 86 21 32181396 TEL: 65 6287 8998 FAX: 65 6280 0080 TEL: 886 3 4643715 FAX: 886 3 4641911 Room 1503 XinYin Building No. 888 YiShan Rd. Shanghai 200233 China 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 No. 26 Kao Ching Rd. Yang Mei Chen Taoyuan Hsien Taiwan, R. O. C. 32667 This is a “Preliminary” product data sheet. Products mentioned on this data sheet are in development and in the process of being qualified. These products are not fully released nor are they in production. Features, specifications and performance of products offered are subject to change without notice. Other brand and product names mentioned herein may be products and/or registered trademarks of their respective owners. For current information on this product, please contact the Pulse office nearest you and ask for the “Power Applications Engineer.” Pulse and the Squarewave logo are trademarks of Pulse Electronics, Inc., registered in the U.S. and other countries. © Copyright, 2011. Pulse Electronics, Inc. All rights reserved. www.pulseelectronics.com 2 PRELIMINARY P694.A (1/11)