Document 1233-1 120 W PoE Planar Transformers For Active Clamp Forward Topology • Designed for active clamp forward topology • Operates at 200 kHz, with 36 – 72 Volt input • High efficiency; excellent DCR; very low leakage inductance • Isolation:1500 Vrms one minute primary and aux to secondary. • Provides 0.009″ (0.229 mm) clearance above the seating plane • Includes a 12-Volt auxiliary winding Core material Ferrite Terminations Matte tin over nickel over brass. Weight 11.1 – 11.9 g Ambient temperature –40°C to +125°C Maximum part temperature +165°C (ambient + temp rise) Storage temperature Component: –40°C to +125°C. Tray or tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 36 per tray (standard; tape and reel optional) PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Inductance2 Part number1 ±20% (µH) POE120PL-33L_ 50 POE120PL-50L_50 POE120PL-12L_50 POE120PL-24L_50 DCR max (mOhms) pri : sec : aux 27.6 : 1.26 : 270 18.9 : 1.26 : 123 18.9 : 6.80 : 58.5 18.9 : 13.6 : 58.5 Leakage inductance3 max (µH) 0.70 0.31 0.37 0.39 Turns ratio pri : sec : aux 6 : 1 : 3.5 4 : 1 : 2.5 2 : 1 : 1 1 : 1 : 0.5 Output 3.3 V, 36 A 5.0 V, 24 A 12 V, 10 A 24 V, 5 A 1. When ordering, please specify packaging code: POE120PL-24LD Packaging:Blank In trays, 36 per tray D =Optional tape and reel (additional cost), 13″ machine-ready reel. EIA-481 embossed plastic tape. See tape and reel specifications on page 2. B=Optional tape and reel (additional cost), less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance is for the primary, measured at 200 kHz, 0.5 Vrms, 0 Adc. 3. Leakage inductance is for the primary and is measured with the secondary winding shorted. 4. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document 1233-1 Revised 07/29/15 Document 1233-2 120 W Planar Transformers for PoE – POE120PL Dot indicates pin 1 POE120PL-xxL 1 0.820 max 20,83 XXXXY 2 4 5 6 Dash number -12L -24L -33L -50L 10 8 Height max (inches / mm) 0.352 / 8.94 0.380 / 9.64 0.407 / 10.34 0.375 / 9.53 0.920 max 23,37 0.009 min 0,229 See height table 0.004 /0,102 0.050 1,27 ∅ CL 0.080 2,03 0.310 7,874 0.200 5,08 0.310 7,874 0.200 5,08 0.080 2,03 CL 1 2 ∅ 0.110 2,79 0.125 3,175 10 CL 4 8 5 6 0.390 9,91 0.090 2,286 0.125 3,175 0.800 20,32 Dimensions are in inches mm Recommended Land Pattern Optional tape and reel packaging POE120PL-12: 250/13″ reel Plastic tape: 44 mm wide, 0.5 mm thick, 32 mm pocket spacing, 9.40 mm pocket depth POE120PL-24: 200/13″ reel Plastic tape: 44 mm wide, 0.5 mm thick, 28 mm pocket spacing, 9.98 mm pocket depth POE120PL-33: 200/13″ reel Plastic tape: 44 mm wide, 0.5 mm thick, 28 mm pocket spacing, 10.68 mm pocket depth POE120PL-50: 250/13″ reel Plastic tape: 44 mm wide, 0.5 mm thick, 32 mm pocket spacing, 9.78 mm pocket depth Document 1233-2 Revised 07/29/15