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+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Power Factor Controller Transformers Document 145 Document 145 Revised 01/06/09 These parts are designed for use with Motorola MC33261 and MC34261 power factor controllers. They are specifi- cally intended for use in AC-DC pre-converter circuits for electronic ballast and off-line switching power converter applications. N2880-AL and N2881-AL utilize standard materials for lowest cost. Coilcraft can also supply custom transform- ers optimized for specific combinations of output power and input voltage. N2880-AL For output power up to 175 Watts For “universal” 110/220 V input voltage Inductance1: Pins 2-5 960/780 µH DC resistance: Pins 2-5 0.100 max Pins 12-7 0.017 max Isolation: 500 Vrms between windings 1. Tested at 15.75 kHz, 1 Vrms. 2. Ambient temperature: –40°C to +85°C. 3. Electrical specifications at 25°C. N2881-AL For output power up to 80 Watts For 110 V input voltage Inductance1: Pins 1-5 350/290 µH DC resistance: Pins 1-5 0.170 max Pins 10-6 0.019 max Isolation: 500 Vrms between windings 1. Tested at 15.75 kHz, 0.2 Vrms. 2. Ambient temperature: –40°C to +85°C. 3. Electrical specifications at 25°C. Recommended Board Layout Recommended Board Layout 1.90 48,3 1.10 27,9 0.150 ±0.030 3,81 ±0,76 1.60 40,6 0.950 24,1 1.90 48,3 1.10 27,9 0.200 5,08 0.150 3,81 1.300 33,02 0.620 15,75 0.063 1,60 0.051 1,295 0.044 1,12 0.032 1,12 dia dia dia dia (10×) 0.300 7,62 0.200 5,08 13:1 12.4:1 max max maxmax max max (1×) (1×) (9×) (7×) (12×) (12×) (10×) Weight: 176 g Terminations: Tin-silver over tin over copper Packaging: 36 per tray Weight: 22.2 g Terminations: Tin-silver over tin over copper Packaging: 30 per tray