Document 510-1 Flyback Transformers For Linear Technology LT3750/LT3751 Capacitor Charger Controllers These surface mount flyback transformers were developed for use with Linear Technology LT3750 Capacitor Charger Controller. DA2033-AL and DA2034-AL are also specified for the LT3751 Controller. They have a smaller footprint than other transformers designed for this application. These low-profile transformers feature 1500 Vrms, one minute winding to winding isolation and 750 Vrms winding to core isolation. They are designed to operate with an input range of 3 - 24 V and to charge a capacitor to 300 V. They are shown on the Linear Technology LT3750 application note for use in a 300 V, 3 A charging circuit (DA2032); a 300 V, 6 A charging circuit (DA2033); and a 300 V, 9 A charging circuit (DA2034). Coilcraft can also custom engineer a transformer to meet your specific requirements. For free evaluation samples, contact Coilcraft or visit www.coilcraft.com. Part number1 DA2032-AL_ DA2033-AL_ DA2034-AL_ Inductance Inductance DCR max (Ohms) at 0 A2 at Ipk3 10% (H) min (H) pri4 sec 10.0 9.0 0.013 1.60 10.0 9.0 0.015 1.10 10.0 9.0 0.018 1.75 6. 7. DA2034-ALD Packaging: D = 13 machine-ready reel. EIA-481 embossed plastic tape (DA2032-AL & DA2033-AL: 200 parts per full reel; DA2034AL: 175 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc. Peak primary current drawn at minimum input voltage. DCR is with the primary windings connected in parallel. Leakage inductance is with the primary windings connected in parallel and with the secondary winding shorted. Capacitance measured at 100 kHz, 0.1 Vrms from pin 3 to pin 1 with all other pins shorted. Electrical specifications at 25C. 10 9 8 7 12 Primary Secondary 1 6 5 4 3 Turns ratio pri : sec 1 : 10 1 : 10 1 : 10 Core material Ferrite 1. When ordering, please specify packaging code: 2. 3. 4. 5. Leakage Interwinding inductance5 Ipk3 capacitance6 max (H) (A) (pF) 0.150 3.0 67 0.144 5.0 76 0.250 10.0 128 Terminations RoHS compliant tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight DA2032: 5.9 g; DA2033: 8.2 g; DA2034: 14.1g Ambient temperature -40C to +125C Storage temperature Component: -40C to +125C. Tape and reel packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 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 DA2032-AL 200 per 13 reel. Plastic tape: 44 mm wide, 0.4 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth DA2033-AL 200 per 13 reel. Plastic tape: 44 mm wide, 0.4 mm thick, 24 mm pocket spacing, 10.56 mm pocket depth DA2034-AL 175 per 13 reel. Plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 11.9 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. Primary windings to be connected in parallel on PC board US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 510-1 Revised 02/09/11 (c) Coilcraft Inc. 2017 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. Document 510-2 Flyback Transformers for Linear LT3750 DA2032-AL Dot indicates pin 1 12 1 0.135 3,43 0.028 0,72 0.665 16,88 1 0.070 1,79 DA2032-AL 0.677 max 17,20 XXXX Y 6 7 0.098 2,5 0.865 max 21,97 Recommended Land Pattern 0.098 2,50 0.350 max 8,89 0.079 2,01 DA2033-AL 0.004 /0,10 0.590 14,98 0.693 17.60 Dot indicates pin 1 12 1 0.130 3,30 0.028 0,711 1 0.748 19,0 0.070 1,79 DA2033-AL 0.685 max 17,40 XXXX Y 6 7 0.950 max 24,13 0.100 2,54 Recommended Land Pattern 0.100 2,54 0.385 max 9,78 0.075 1,915 DA2034-AL 0.004 /0,10 0.699 17,0 0.799 20,3 Dot indicates pin 1 12 1 0.028 0,711 0.130 3,30 0.930 23,62 1 DA2034-AL 0.810 max 20,57 Recommended Land Pattern XXXX Y 6 7 1.181 max 30,00 0.050 1,27 0.118 3,00 0.118 3,0 Internal code Parts manufactured prior to September 2011 may be marked differently. 0.450 max 11,43 0.827 21,00 0.080 2,03 0.004 /0,10 0.969 24,60 US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Dimensions are in Document 510-2 inches mm Revised 02/09/11 (c) Coilcraft Inc. 2017 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. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Coilcraft: DA2034-ALB DA2034-ALD DA2032-ALB DA2032-ALD DA2033-ALD DA2033-ALB