www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 59019
29 Revision: 01-Oct-07
SK12
Vishay Aztronic
High Current Toroidal Inductors,
EMI/RFI Noise Suppression, Switching Power Supplies
and Output Chokes
FEATURES
•SK series inductors have a copper winding on a toroid
•Available with a bare construction or in a case
•Main uses are power supply, filtering or dc-to-dc
converters with frequencies up to 300 kHz
DIMENSIONS in millimeters
MECHANICAL SPECIFICATIONS
Magnetic Circuit toroid
Terminals wire N and E versions
pins: V and H versions
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature Range - 40 °C + 125 °C
MARKING (V AND H VERSIONS)
Print marked:
manufacturer, model, style, inductance value, nominal
current
ELECTRICAL SPECIFICATIONS
Tolerance ± 20 %
Max. Operating Frequency 300 kHz
Maximum Voltage 250 VRMS
12
6
12
10 Ø d
SK12 N
15
10 18
18
12.5
3.5
0.7 x 0.7
23
14
SK12 H
15
95
13
7
Ø d
3.5
SK12E
(10 µH to 100 µH)
15
10 13
20
18
3.5
0.7 x 0.7
12
3
4
SK12V
PACKAGING
50 pieces in box
Document Number: 59019 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 01-Oct-07 30
SK12
High Current Toroidal Inductors,
EMI/RFI Noise Suppression, Switching Power Supplies
and Output Chokes
Vishay Aztronic
INDUCTANCE VALUE VERSUS CURRENT
On request: other values or pin configuration.
ORDERING INFORMATION
SK 12 V 47 µH e2
MODEL STYLE VERSION INDUCTANCE VALUE
NO LOAD
LEAD FINISH
e2: SnCu
SAP PART NUMBERING GUIDELINES
SK12V470MB25
MODEL STYLE VERSION INDUCTANCE
VALUE
TOL. PACKAGING
CODE
SPECIAL
(IF APPLICABLE)
See the end of this data book for conversion tables
I
MAX.
mA
L
WITH
NO LOAD
µH
L MIN.
AT NOMINAL
CURRENT
µH
DCR
MAX.
mΩ
Ø D MAX.
(WIRE DIAMETER)
N AND E VERSIONS
mm
210 720 0.7
1.52215380.6
147 33 84 0.5
0.75 100 70 155 0.4
0.5 220 154 310 0.4
0.315 470 330 875 0.3
0.2 1000 700 1590 0.3
0
L with
no load
L at
nominal
current
I nominal
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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Vishay
All product specifications and data are subject to change without notice.
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(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
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applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
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