7ꢀ7ꢀPOWERINDUCTORS
High-Reliability Power Inductors MS541PYA
■ High temperature materials allow operation in ambient
temperatures up to 155°C
■ Passes vibration testing to 80 G and shock testing to 1000 G
■ Tin-lead (Sn-Pb) termination for the best possible board
adhesion
■ High current and very low DCR
■ Soft saturation makes them ideal for VRM/VRD applications.
Core material Composite
Terminations Tin-lead (63/37) over copper.
Weight 1.9 – 2.1g
Ambient temperature –55°C to +105°C with Irms current, +105°C to
+155°C with derated current
Storage temperature Component: –55°C to +155°C.
Tape and reel packaging: –55°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)
Enhanced crush-resistant packaging 150 per 7″reel
Plastic tape: 16 mm wide, 0.3 mm thick, 12 mm pocket spacing,
7.21 mm pocket depth
DCR (mOhms)3
SRF (MHz)4
Irms (A)6
(A) 2ꢀ°C rise 4ꢀ°C rise
Inductance2
2ꢀ0 (µH)
Isat5
Part number1
typ
max
min
typ
Irms Testing
MS541PYA161MSZ
MS541PYA301MSZ
MS541PYA551MSZ
MS541PYA651MSZ
MS541PYA801MSZ
0.16
0.30
0.55
0.65
0.80
0.75
1.06
1.42
1.75
2.08
0.83
1.17
1.56
1.93
2.29
166
108
71
59
54
207
135
89
74
67
78.0
55.6
43.0
40.0
37.8
22.9
19.6
17.6
15.8
15.6
27.1
25.1
21.8
19.9
19.4
Irms testing was performed on a
0.060″ thick pcb with 4 oz. copper
traces optimized to minimize
additional temperature rise.
Temperature rise is highly
dependent on many factors
including pcb land pattern,
trace size, and proximity to
other components. Therefore
temperature rise should be
verified in application conditions.
MS541PYA102MSZ
MS541PYA122MSZ
MS541PYA182MSZ
MS541PYA222MSZ
MS541PYA332MSZ
1.0
1.2
1.8
2.2
3.3
2.55
3.10
4.05
5.73
8.56
2.81
3.41
4.46
6.33
9.42
51
34
34
28
26
64
43
43
35
32
34.8
31.2
25.0
19.6
19.4
15.0
12.2
11.9
9.9
18.8
16.2
15.8
13.4
11.3
8.7
MS541PYA472MSZ
MS541PYA562MSZ
MS541PYA682MSZ
4.7
5.6
6.8
12.96
13.67
17.84
14.26
15.03
19.62
21
17
16
26
21
20
15.2
13.0
12.8
7.9
6.4
5.1
10.2
8.6
6.9
1. When ordering, please specify testing code:
MS541PYA682MSZ
Testing: Z = COTS
H = Screening per Coilcraft CP-SA-10001
N = Screening per Coilcraft CP-SA-10004
2. Inductance tested at 100 kHz, 0.1 Vrms using an Agilent/HP 4192A.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using an Agilent/HP 4395A or equivalent.
5. Typical dc current at which the inductance drops 30% from its value without current.
6. Typical 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.
Document MS856-1 Revised 01/08/13
®
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Email cps@coilcraft.com Specifications subject to change without notice.
www.coilcraft-cps.com Please check our web site for latest information.
Fax 847-639-1508
1102 Silver Lake Road
Cary, IL 60013
Phone 800-981-0363
© Coilcraft, Inc. 2013