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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. Document 528-1 Document 528-1 Revised 01/13/12 Coupled Inductors – MSD1260 Dimensions are in inches mm Core material Ferrite Core and winding loss Go to online calculator Terminations RoHS compliant matte tin over nickel over phos bronze. Other terminations available at additional cost. Weight: 2.8 – 3.2 g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Tape and reel ackaging: –40°C to +80°C Winding-to-winding and winding-to-core isolation 500 Vrms 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 500/13″ reel; Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing, 6.6 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. Recommended Land Pattern 0.217 5,5 0.177 4,5 0.157 4,0 0.079 2,0 1 2 L1 L2 123 X 0.197 5,0 0.059 1,5 0.197 5,0 0.138 3,5 0.484 12,3 max 0.484 12,3 max Dash number Internal code 0.236 ±0.008 6,0 ±0,2 Parts manufactured prior to Sept. 2007 were marked with only the dash number. Dot indicatespin1 For optionaltin-leadand tin-silver-copper terminations, dimensionsare for the mounted part. Dimensionsbefore mountingcan be an additional0.012 inch (0,3 mm). For Flyback, SEPIC and other Applications
- Tight coupling (k ≥ 0.98)
- 500 V isolation
- Ideal for use in a variety of circuits including flyback, multi- output buck and SEPIC.
- High inductance, high efficiency and excellent current handling
- Can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. L1 L2 + + D C C Typical Flyback Converter VOUT VIN SW D D C C SW Typical Buck Converter with auxiliary output Typical SEPIC schematic VOUT VOUT VOUTAUX VIN VIN L2Q C D
+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. Coupled Inductors – MSD1260 Series Document 528-2 Revised 01/13/12 Document 528-2 Coupling Leakage Irms (A) Part Inductance2 DCR max3 SRF typ4 coefficient Inductance5 Isat6 both one number 1 (µH) (Ohms) (MHz) typ typ (µH) (A) windings7 winding8 1. When ordering, please specify termination and packaging codes: MSD1260-105KLD Termination: L = RoHS compliant matte tin over nickel over phos bronze. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (500 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. 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. 3. DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. 5. Leakage Inductance is for L1 and is measured with L2 shorted. 6. DC current, at which the inductance drops 30% (typ) from its value without current. It is the sum of the current flowing in both windings. 7. Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. See temperature rise calcu- lation. 8. Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. See temperature rise calculation. 9. Electrical specifications at 25°C. Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.” Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Coupled Inductor Core and Winding Loss Calculator This web-based utility allows you to enter frequency, peak-to-peak (ripple) current, and Irms current to predict temperature rise and overall losses, including core loss. Go to online calculator.
+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. Coupled Inductors – MSD1260 Series Document 528-3 Revised 01/13/12 Typical L vs FrequencyTypical L vs Current Document 528-3 100 1000 10000 0.1 1 10010 Inductance (µH) Current (A) -104 -103 -472 -473 -105 -474 100 1000 10000 0.01 0.1 101 Inductance (µH) Frequency (MHz) -104 -103 -472 -473 -105 -474 Current Derating -40 -200 20 40 60 80 100 140120 Ambient temperature (°C) Pe rcent of rated c urrent 120 110 100 Isat Irms 25° C