MSS1278T-102NL Datasheet, PDF (1/2 Pages) Coilcraft lnc. – SMT Power Inductors

HIGH ^TEMPERATURE
Document 598-1
SMT Power Inductors – MSS1278T
• Designed for high ambient temperatures
• Very low DCR, excellent current handling
• Magnetic shielding for high density mounting
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
Part number¹
DCR³
Inductance^{2 (mOhms)}
(µH)
typ max
MSS1278T-102NL_
MSS1278T-142NL_
MSS1278T-222NL_
MSS1278T-272NL_
MSS1278T-392NL_
1.0 ±30% 6.3 7.0
1.4 ±30% 8.8 9.8
2.2 ±30% 9.4 10.5
2.7 ±30% 10.1 11.3
3.9 ±30% 11.7 13.0
MSS1278T-472ML_ 4.7 ±20% 13.9 15.5
MSS1278T-562ML_ 5.6 ±20% 15.7 17.5
MSS1278T-682ML_ 6.8 ±20% 19.1 21.3
MSS1278T-822ML_ 8.2 ±20% 20.3 22.6
MSS1278T-103ML_ 10 ±20% 21.8 24.3
MSS1278T-123ML_
MSS1278T-153ML_
MSS1278T-183ML_
MSS1278T-223ML_
MSS1278T-273ML_
12 ±20%
15 ±20%
18 ±20%
22 ±20%
27 ±20%
23.2 25.8
27.9 31.0
30.8 34.3
35.5 39.5
45.0 50.0
MSS1278T-333ML_
MSS1278T-393ML_
MSS1278T-473ML_
MSS1278T-563ML_
MSS1278T-683ML_
33 ±20%
39 ±20%
47 ±20%
56 ±20%
68 ±20%
61.9 68.8
69.1 76.8
72.3 80.4
80.2 89.2
91.3 101.5
MSS1278T-823ML_ 82 ±20%
MSS1278T-104ML_ 100 ±20%
MSS1278T-124KL_ 120 ±10%
MSS1278T-154KL_ 150 ±10%
MSS1278T-184KL_ 180 ±10%
125.9
135.1
182.3
216.5
229.0
139.9
150.2
202.6
240.6
254.5
MSS1278T-224KL_
MSS1278T-274KL_
MSS1278T-334KL_
MSS1278T-394KL_
MSS1278T-474KL_
220 ±10%
270 ±10%
330 ±10%
390 ±10%
470 ±10%
323.6
415.6
487.3
533.6
707.5
359.6
461.8
541.5
592.9
786.2
MSS1278T-564KL_ 560 ±10%
MSS1278T-684KL_ 680 ±10%
MSS1278T-824KL_ 820 ±10%
MSS1278T-105KL_ 1000 ±10%
777.4 863.8
1045 1162
1166 1296
1334 1482
SRF
Isat (A)⁵
typ⁴ 10% 20% 30%
(MHz) drop drop drop
115 31.84 35.04 36.84
85 25.04 27.76 29.52
60 22.56 24.80 25.96
40 18.76 20.72 22.04
35 16.52 18.24 19.20
33 15.30 16.90 17.76
30 13.38 14.86 15.74
23 12.10 13.56 14.20
20 11.38 12.60 13.28
17 10.62 11.82 12.48
15 8.90 9.88 10.44
13 8.36 9.32 9.94
12 8.00 8.88 9.36
11 7.08 7.88 8.34
10 6.32 7.08 7.54
9.5 5.96 6.56 6.98
8.5 5.38 5.94 6.28
7.5 4.76 5.40 5.66
7.0 4.40 4.98 5.30
6.5 3.92 4.46 4.74
5.0 3.66 4.08 4.38
4.5 3.12 3.56 3.78
4.3 3.02 3.36 3.58
4.1 2.60 2.94 3.10
4.0 2.36 2.68 2.84
3.4 2.24 2.50 2.62
3.1 1.94 2.18 2.34
2.9 1.72 1.92 2.06
2.7 1.62 1.82 1.92
2.2 1.44 1.64 1.74
2.0 1.40 1.54 1.66
1.7 1.24 1.32 1.46
1.4 1.14 1.28 1.42
1.3 0.982 1.08 1.18
Irms (A)⁶
20°C 40°C
rise rise
7.1 10.1
6.8 9.8
6.3 9.2
6.1 8.6
5.7 7.7
4.3 6.2
4.3 6.2
4.2 6.0
4.1 5.9
4.0 5.7
3.7 5.2
3.5 4.9
3.0 4.5
2.9 4.0
2.6 3.6
2.3 3.1
2.1 3.0
2.0 2.9
1.9 2.7
1.8 2.6
1.6 2.3
1.5 2.2
1.4 1.9
1.3 1.8
1.2 1.7
1.0 1.6
0.90 1.2
0.80 1.0
0.75 1.0
0.66 0.90
0.60 0.80
0.55 0.75
0.50 0.70
0.48 0.68
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. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc
using 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
network 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
Components” before soldering.
Specifications subject to change without notice.
Please check our website for latest information.
Document 598-1 Revised 10/20/08
© Coilcraft, Inc. 2009