HIGH TEMPERA

TURE

Document 598-1

Document 598-1 Revised 08/18/11

SMT Power Inductors–MSS1278T

SRF

(mOhms)

30% 20°C 40°C

(µH)

typ

max

(MHz) drop drop drop rise rise

MSS1278T-102NL_

1.0 ±30%

6.3

7.0 115

31.84 35.04 36.84

7.1 10.1

MSS1278T-142NL_

1.4 ±30%

8.8

9.8

85

25.04 27.76 29.52

6.8

9.8

MSS1278T-222NL_

2.2 ±30%

9.4

10.5

60

22.56 24.80 25.96

6.3

9.2

MSS1278T-272NL_

2.7 ±30% 10.1

11.3

40

18.76 20.72 22.04

6.1

8.6

MSS1278T-392NL_

3.9 ±30% 11.7

13.0

35

16.52 18.24 19.20

5.7

7.7

MSS1278T-472ML_

4.7 ±20% 13.9

15.5

33

15.30 16.90 17.76

4.3

6.2

MSS1278T-562ML_

5.6 ±20% 15.7

17.5

30

13.38 14.86 15.74

4.3

6.2

MSS1278T-682ML_

6.8 ±20% 19.1

21.3

23

12.10 13.56 14.20

4.2

6.0

MSS1278T-822ML_

8.2 ±20% 20.3

22.6

20

11.38 12.60 13.28

4.1

5.9

MSS1278T-103ML_ 10 ±20%

21.8

24.3

17

10.62 11.82 12.48

4.0

5.7

MSS1278T-123ML_ 12 ±20%

23.2

25.8

15

8.90

9.88 10.44

3.7

5.2

MSS1278T-153ML_ 15 ±20%

27.9

31.0

13

8.36

9.32

9.94

3.5

4.9

MSS1278T-183ML_ 18 ±20%

30.8

34.3

12

8.00

8.88

9.36

3.0

4.5

MSS1278T-223ML_ 22 ±20%

35.5

39.5

11

7.08

7.88

8.34

2.9

4.0

MSS1278T-273ML_ 27 ±20%

45.0

50.0

10

6.32

7.08

7.54

2.6

3.6

MSS1278T-333ML_ 33 ±20%

61.9

68.8

9.5

5.96

6.56

6.98

2.3

3.1

MSS1278T-393ML_ 39 ±20%

69.1

76.8

8.5

5.38

5.94

6.28

2.1

3.0

MSS1278T-473ML_ 47 ±20%

72.3

80.4

7.5

4.76

5.40

5.66

2.0

2.9

MSS1278T-563ML_ 56 ±20%

80.2

89.2

7.0

4.40

4.98

5.30

1.9

2.7

MSS1278T-683ML_ 68 ±20%

91.3 101.5

6.5

3.92

4.46

4.74

1.8

2.6

MSS1278T-823ML_ 82 ±20%

125.9 139.9

5.0

3.66

4.08

4.38

1.6

2.3

MSS1278T-104ML_ 100 ±20%

135.1 150.2

4.5

3.12

3.56

3.78

1.5

2.2

MSS1278T-124KL_ 120 ±10%

182.3 202.6

4.3

3.02

3.36

3.58

1.4

1.9

MSS1278T-154KL_ 150 ±10%

216.5 240.6

4.1

2.60

2.94

3.10

1.3

1.8

MSS1278T-184KL_ 180 ±10%

229.0 254.5

4.0

2.36

2.68

2.84

1.2

1.7

MSS1278T-224KL_ 220 ±10%

323.6 359.6

3.4

2.24

2.50

2.62

1.0

1.6

MSS1278T-274KL_ 270 ±10%

415.6 461.8

3.1

1.94

2.18

2.34

0.90 1.2

MSS1278T-334KL_ 330 ±10%

487.3 541.5

2.9

1.72

1.92

2.06

0.80 1.0

MSS1278T-394KL_ 390 ±10%

533.6 592.9

2.7

1.62

1.82

1.92

0.75 1.0

MSS1278T-474KL_ 470 ±10%

707.5 786.2

2.2

1.44

1.64

1.74

0.66 0.90

MSS1278T-564KL_ 560 ±10%

777.4 863.8

2.0

1.40

1.54

1.66

0.60 0.80

MSS1278T-684KL_ 680 ±10% 1045 1162

1.7

1.24

1.32

1.46

0.55 0.75

MSS1278T-824KL_ 820 ±10% 1166 1296

1.4

1.14

1.28

1.42

0.50 0.70

MSS1278T-105KL_ 1000 ±10% 1334 1482

1.3

0.982 1.08

1.18

0.48 0.68

Designer’s Kit C419 contains 3 of each value

Core material Ferrite

Terminations RoHS compliant matte tin over nickel over phos

bronze. Other terminations available at additional cost.

Weight: 3.8 g – 4.6 g

Ambient temperature –40°C to +125°C with Irms current, +125°C to

+165°C with derated current

Storage temperature Component: –40°C to +165°C.

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 500/13

″ reel; Plastic tape: 24 mm wide, 0.4 mm thick,

16 mm pocket spacing, 8.1 mm pocket depth

PCB washing Only pure water or alcohol recommended

• Designedforhighambienttemperatures

• VerylowDCR,excellentcurrenthandling

• Magneticshieldingforhighdensitymounting

1. Please specify

termination and packaging codes:

MSS1278T-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. Inductancetestedat100kHz,0.1Vrms,0Adcusing

an Agilent/HP 4263B LCR meter or equivalent.

3. DCR measured on a micro-ohmmeter and a

Coilcraft CCF858 test fixture.

4. SRF measured using an Agilent/HP 8753D net-

work analyzer and a Coilcraft SMD-D test fixture.

5. DC current at which the inductance drops the

specified amount from its value without current.

6. Current that causes the specified temperature rise

from 25°C ambient.

7. Electrical specifications at 25°C.

Refer to Doc 362 “Soldering Surface Mount Compo-

nents” before soldering.