Standard Flyback Regulators Equivalent Magnetics for LM258x Flyback Regulator ctparts.com Not shown at actual size. RoHS Compliant Available 1. Leakage inductance measured across the primary at 0.10 Vrms, 100kHz 2. DC current at which the primary inductance is measured 3. Operating temperature range -40°C to +85°C 4. Electrical specifications at 25°C ORDERING INFO CTQ~~~~-BF Please specify “F” for RoHS compliant L at 0 Adc ±15% (µH) L at Ipk Min. (µH) Volt-time product Max. (Vµsec) Leakage Inductance1 Max. (µH) DCR Primary Ω) (Ω Part Number Type CTQ4435-B_ CTQ4434-B_ CTQ4436-B_ SM TH SM 22 22 22 19.0 19.8 19.0 166.5 162.0 166.5 0.7 2.0 0.5 0.020 0.028 0.025 CTQ4337-B_ CTQ4343-B_ CTQ4344-B_ TH TH TH 22 85 85 19.8 76.5 76.5 162.0 364.5 364.5 2.0 3.5 3.5 0.030 0.150 0.145 CTQ4437-B_ SM 55 47.3 299.7 2.0 0.110 CTQ4338-B_ TH 66 59.4 499.5 3.5 0.090 CTQ4438-B_ CTQ4339-B_ SM TH 65 66 57.0 59.4 299.7 499.5 3.0 3.0 0.065 0.090 CTS6057-A_ CTS6000-A_ SM TH 47 47 40.0 40.0 233.1 212.6 2.0 2.0 0.065 0.065 DCR Secondary Ω) (Ω Turns Ratio 0.025 0.028 0.23 (10-11) 0.25 (9-8) 0.32 (8-7, 6-5) 0.011 (10-9, 7-6) 0.20 (10-9, 7-6) 0.03 (4-5) 0.035 (3-2) 0.30 (9-8) 0.32 (4-5) 0.039 (8-7) 0.58 (6-5) 0.60 (3-4) 0.15 (10-11, 9-8) 0.20 (8-7) 0.24 (5-6) 0.065 0.042 1:1 1:1 1:2.5:2.5 4.85 5.0 5.0 1:2.5:2.5 1:0.8:0.8 1:0.35:0.8:0.8 5.0 3.0 3.0 1:0.5:1.167:1.167 3.0 1:0.5:1.167:1.167 3.0 1:1.2:1.2 1:1.2:1.2 3.0 3.0 1:1 1:1 3.0 3.0 SCHEMATICS Schematics for Surface Mount (SM) CTQ4435-B, CTS6057-A CTQ4436-B, CTQ4438-B CTQ4437-B Schematics for Through Hole (TH) CTQ4434-B, CTS6000-A CTQ4337-B, CTQ4339-B CTQ4338-B CTQ4343-B CENTRAL Technologies 12.11.06 Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice Ipk2 (A) CTQ4344-B Standard Flyback Regulators ctparts.com PHYSICAL DIMENSIONS Unit: inch Surface Mount (SM) CTQ4435-B / CTQ4436-B / CTQ4437-B / CTQ4438-B / CTS6057-A 0.004 MAX 1 12 6 7 Recommended Land pattern Through Hole (TH) CTQ4434-B / CTQ4337-B / CTQ4338-B / CTQ4339-B / CTS6000-A 1 4 1 8 1 4 4 5 8 5 Through Hole (TH) CTQ4343-B / CTQ4344-B Recommended Footprint CENTRAL Technologies 12.11.06 Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice