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© 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

CoupledInductors–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

4

2

3

3

1

2

4

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

1

4

2

3

0.236 ±0.008

6,0 ±0,2

Parts manufactured

prior to Sept. 2007

were marked with

only the dash number.

Dot indicates pin1

*

For optional tin-lead and tin-silver-copper

terminations, dimensions are for the mounted

part. Dimensions before mounting can be

an additional 0.012 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

SW

L1

L2

++

+

––

–

D

D

C

C

SW

Typical Buck Converter with auxiliary output

Typical SEPIC schematic

AUX

L1

L2

Q

C1

C

++

––

D