High Frequency Wire Wound Transformers EP13Plus Platforms - SMT Industry standard footprint, 30% more power handling Power Range: Up to 70W Height: 14.0mm Max Footprint: 17.7mm x 14.5mm Max Topology: Forward and Flyback Pulse PN Electrical Specifications @25C – Operating Temperature -40C to 130C 1 Schematic Pri. Inductance (1-3) 54uH +/- 10% (1-3) w/ Lk. Inductance 0.67uH Max (10,9,6,7,4,5) shorted (1-3) 62 8 1 PA3855.001NL (9-6) 6.5 DCR mΩ Max (10-7) 6.5 3 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 1125.0 Pri. Inductance (1-3) 48uH +/- 10% (1-3) w/ Lk. Inductance 0.67uH Max (10,9,6,7,4,5) shorted 5.33 1 (1-3) 62 PA3855.002NL (9-6) 10 DCR mΩ Max (10-7) 10 2 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 1000.0 Pri. Inductance (1-3) 41uH +/- 10% (1-3) w/ Lk. Inductance 0.67uH Max (10,9,6,7,4,5) shorted 2.67 1 (1-3) 62 PA3855.003NL (9-6) 20 DCR mΩ Max (10-7) 23 1 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 854.2 Pri. Inductance (1-3) 21uH +/- 10% (1-3) w/ Lk. Inductance 0.3uH Max 4.33 1 (10,9,6,7,4,5) shorted (1-3) 31 PA3855.004NL (9-6) 10 DCR mΩ Max 3 1 (10-7) 10 (4-5) 180 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 538.5 1 power.pulseelectronics.com P719.F (11/17) http://www.power.pulseelectronics.com/contact

High Frequency Wire Wound Transformers EP13Plus Platforms - SMT Pulse PN Electrical Specifications @25C – Operating Temperature -40C to 130C 1 Schematic Pri. Inductance (1-3) 21uH +/- 10% (1-3) w/ Lk. Inductance 0.3uH Max (10,9,6,7,4,5) shorted 3 1 (1-3) 31 PA3855.005NL (9-6) 14 DCR mΩ Max (10-7) 14 2.25 1 (4-5) 180 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 583.3 Pri. Inductance (1-3) 21uH +/- 10% (1-3) w/ Lk. Inductance 0.3uH Max (10,9,6,7,4,5) shorted 1.33 1 (1-3) 31 PA3855.006NL (9-6) 58 DCR mΩ Max (10-7) 58 0.89 1 (4-5) 180 Hi-Pot Pri-Sec 2250 Vdc Flyback Transformer K1 Factor 583.3 Pri. Inductance (1-3) 100 uH +/- 15% (1-3) w/ Lk. Inductance 0.4uH Max (10,9,6,7,4,5) shorted 6 1 (1-3) 29.4 PA3856.001NL (9-6) 6.5 DCR mΩ Max (10-7) 6.5 3 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 27.8 Pri. Inductance (1-3) 100uH +/- 15% (1-3) w/ Lk. Inductance 0.4uH Max (10,9,6,7,4,5) shorted 4 1 (1-3) 29.4 PA3856.002NL (9-6) 10 DCR mΩ Max (10-7) 10 2 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 27.8 Pri. Inductance (1-3) 100uH +/- 15% (1-3) w/ Lk. Inductance 0.4uH Max (10,9,6,7,4,5) shorted 1.71 1 (1-3) 29.4 PA3856.003NL DCR (9-6) 31.6 mΩ Max (10-7) 36 0.86 1 (4-5) 120 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 27.8 2 power.pulseelectronics.com P719.F (11/17) http://www.power.pulseelectronics.com/contact

High Frequency Wire Wound Transformers EP13Plus Platforms - SMT Pulse PN Electrical Specifications @25C – Operating Temperature -40C to 130C 1 Schematic Pri. Inductance (1-3) 128uH +/- 25% (1-3) w/ Lk. Inductance 0.15uH Max (10,9,6,7,4,5) shorted 1.6 1 (1-3) 17.6 PA3856.004NL (9-6) 14.4 DCR mΩ Max (10-7) 17 1.2 1 (4-5) 410 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 41.7 Pri. Inductance (1-3) 128uH +/- 15% (1-3) w/ Lk. Inductance 0.15uH Max (10,9,6,7,4,5) shorted 1.14 1 (1-3) 17.6 PA3856.005NL (9-6) 31.6 DCR mΩ Max 2 1 (10-7) 36 (4-5) 410 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 41.7 Pri. Inductance (1-3) 128uH +/- 15% (1-3) w/ Lk. Inductance 0.15uH Max (10,9,6,7,4,5) shorted 0.47 1 (1-3) 17.6 PA3856.006NL (9-6) 105.6 DCR mΩ Max 0.82 1 (10-7) 122 (4-5) 426 Hi-Pot Pri-Sec 2250 Vdc Forward Transformer K1 Factor 41.7 Notes: 1. The temperature of the component (ambient plus temperature rise) must be within the 4. The standard pin-numbering for this package is indicated in the below mechanical stated operating temperature range. drawing showing pin 1 on the lower right corner and the numbers proceeding clockwise to pin 10 on the upper right corner. 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. 5. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part To calculate the peak flux density use the following formula: number (i.e. (PA3855.001NL becomes PA3855.001NLT). Pulse complies with industry Bpk (Gauss) = K1_Factor * Ipk(A) standard tape and reel specification EIA481. The tape and reel for this product has a width (W=32mm), pitch (Po=24mm) and depth (Ko=13.2mm). 3. In high volt-μsec applications, it is important to calculate the core loss of the trans- former. Approximate transformer core loss can be calculated as: CoreLoss (W) = 3.84E-14 * (Freq_kHz)1.63 * (ΔB_Gauss)2.63 where ΔB can be calculated as: For Flyback Topology: ΔB = K1_Factor * ΔI(A) For Forward Topology: ΔB = K1_Factor * Volt-μsec 3 power.pulseelectronics.com P719.F (11/17) http://www.power.pulseelectronics.com/contact

High Frequency Wire Wound Transformers EP13Plus Platforms - SMT Mechanical PA3855.XXNL/ PA3856.XXNL For More Information Pulse Worldwide Pulse Europe Pulse China Headquarters Pulse North China Pulse South Asia Pulse North Asia Headquarters Pulse Electronics GmbH Pulse Electronics (ShenZhen) CO., LTD Room 2704/2705 135 Joo Seng Road 1F, No.111 15255 Innovation Drive Ste 100 Am Rottland 12 D708, Shenzhen Academy of Super Ocean Finance Ctr. #03-02 Xiyuan Road San Diego, CA 92128 58540 Meinerzhagen Aerospace Technology, 2067 Yan An Road West PM Industrial Bldg. Zhongli District U.S.A. Germany The 10th Keji South Road, Shanghai 200336 Singapore 368363 Taoyuan City 32057 Nanshan District, Shenzhen, P.R. China Taiwan (R.O.C) China 518057 Tel: 858 674 8100 Tel: 49 2354 777 100 Tel: 86 755 33966678 Tel: 86 21 62787060 Tel: 65 6287 8998 Tel: 886 3 4356768 Fax: 858 674 8262 Fax: 49 2354 777 168 Fax: 86 755 33966700 Fax: 86 2162786973 Fax: 65 6280 0080 Fax: 886 3 4356820 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, 2017. Pulse Electronics, Inc. All rights reserved. 4 power.pulseelectronics.com P719.F (11/17) http://www.power.pulseelectronics.com/contact

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: P ulse: PA3856.006NLT PA3856.003NLT PA3855.002NLT PA3856.002NLT PA3855.005NLT PA3855.003NLT PA3855.006NLT PA3856.005NLT PA3856.001NLT PA3856.004NLT PA3855.001NLT PA3855.004NLT