COILCRAFT ST358PWA

2014 POWER INDUCTORS
Power Inductor for Critical Applications ST358PWA
■ Miniature shielded power inductors; 2.0 × 2.0 mm footprint
■ Extremely low DCR and very high SRF ratings
■ Isat ratings as high as 2.8 A
Core material Ferrite
Terminations Tin-silver-copper over tin over nickel over silver.
Weight 20 – 25 mg
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –55°C to +125°C.
Packaging: –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)
Packaging 2000/7″ reel; 7500/13″ reel Plastic tape: 8 mm wide,
0.28 mm thick, 4 mm pocket spacing, 1.65 mm pocket depth
Part number1
Inductance2
±20% (µH)
DCR nom3 DCR max3
(Ohms)
(Ohms)
Isat (A)5
Irms (A)6
SRF typ4
(MHz)
10% drop 20% drop 30% drop
20°C rise 40°C rise
ST358PWA271MLZ 0.27 0.030 0.036 570 1.502.302.80 2.04 2.73
ST358PWA421MLZ 0.42 0.037 0.044 438 1.402.002.40 1.93 2.57
ST358PWA601MLZ 0.60 0.043 0.052 290 1.201.802.25 1.83 2.43
ST358PWA821MLZ
0.820.051
0.061
1630.950
1.40
1.751.49
2.03
ST358PWA102MLZ 1.0
0.059 0.071 153
0.9001.30 1.68
1.43 1.94
ST358PWA152MLZ 1.5
0.075 0.086 109
0.7201.20 1.60
1.34 1.86
ST358PWA222MLZ 2.2
0.120 0.132
80
0.6000.9801.30
1.07 1.42
ST358PWA332MLZ 3.3
0.152 0.167
62
0.5400.8001.10
0.923 1.23
ST358PWA472MLZ 4.7
0.231 0.254
46
0.3800.6500.880 0.788 1.06
ST358PWA682MLZ 6.8
0.287 0.316
44
0.3500.5900.800 0.676 0.915
ST358PWA822MLZ 8.2
0.378 0.416
39
0.2900.5000.680 0.640 0.849
ST358PWA103MLZ 10
0.440 0.459
33
0.2500.4500.600 0.564 0.729
1. When ordering, please specify testing code:
ST358PWA103MLZ
Testing:Z=COTS
H=Screening per Coilcraft CP-SA-10001
2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using Agilent/HP 4395A network analyzer or equivalent.
5. DC current at which the inductance drops 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.
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2011
Document ST583-1 Revised 04/14/11
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com
2014 POWER INDUCTORS
Power Inductor for Critical Applications – ST358PWA
Typical L vs Current
Typical L vs Frequency
100
10 µH
10
Inductance (µH)
Inductance (µH)
100
3.3 µH
1.0 µH
1
10 µH
10
3.3 µH
1.0 µH
1
0.3 µH
0.1
0.01
0.1
0.3 µH
Current (A)
1
10
0.1
0.1
1
10
Frequency (MHz)
Current Derating
0.079 ±0.008
2,0 ±0,2
100
90
Part Marking
0.079 ±0.008
2,0 ±0,2
80
70
1st
significant
digit
60
50
0.057
max
1,45
40
30
20
10
0
25°C
Percent of rated current
2nd
significant
digit
Multiplier
120
110
100
Isat
Irms
-40
-20
Start
Suggested
Recommended
Land
Land Pattern
Pattern
Finish
0.057
1,45
0.030 max
0,75
0
20
40
60
80
100
120 140
Ambient temperature (°C)
0.087
2,2
0.069
max
1,75
Part Marking
Part number
ST358PWA-271
ST358PWA-421
ST358PWA-601
ST358PWA-821
ST358PWA-102
ST358PWA-152
ST358PWA-222
ST358PWA-332
ST358PWA-472
ST358PWA-682
ST358PWA-822
ST358PWA-103
Value
0.27 µH
0.42 µH
0.60 µH
0.82 µH
1.0 µH
1.5 µH
2.2 µH
3.3 µH
4.7 µH
6.8 µH
8.2 µH
10 µH
1st digit
Red
Yellow
Blue
Gray
Brown
Brown
Red
Orange
Yellow
Blue
Gray
Brown
2nd digit
Violet
Red
Black
Red Black
Green
Red
Orange
Violet Gray
Red
Black
Multiplier
Brown
Brown
Brown
Brown
Red
Red
Red
Red
Red
Red
Red
Orange
0.014
min
0,35
Dimensions are in
0.041
1,04
inches
mm
Small surface blemishes are not unusual and do not adversely affect performance.
Wire may be visible inside the voids.
Acceptable void sizes:
Top: 0.01 in / 0,254 mm × 0.01 in / 0,254 mm
Sides: 0.02 in / 0,5 mm × 0.047 in / 1,2 mm
Note: All marked parts have three dots. Black dot, used only on -601, -102 and
‑103 as second significant digit, may be very difficult to see.
®
Specifications subject to change without notice.
Please check our website for latest information.
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2011
Document ST583-2 Revised 04/14/11
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com