NEW PRODUCT RELEASEMAGNETICS

Bourns Releases Standard Kaschke Magnetic Components• Model 04770x Series Common Mode Chokes• Model 0556xx Series Current Sense Transformers• Model 063xxx and 093830 Series SP-E16/5 Flyback Transformers• Model 0949xx Series SP-E 20/6 Flyback Transformers• Model 071923 and 093267 EMC Filter Chokes
Riverside, California – May 26, 2023 – In 2021, Bourns acquired Kaschke Components, a market leader
in the field of customized magnetic components and ferrite cores. Their advanced capabilities todesign and build ferrite core materials as well as manufacture complex inductive components has
further strengthened Bourns’ innovative magnetics product portfolio. In addition, the Kaschke
team’s extensive experience is a valuable resource in the development of application-specificsolutions that help customers meet the challenging requirements of next generation high-powerindustrial, energy and wide-band gap electronic applications.
Today, Bourns Custom Magnetics Product Line is introducing several new standard products fromKaschke. Included with this introduction Bourns has set up the ability to seamlessly order partnumbers within the Bourns SAP system and is providing easy access to these standard products
via the Bourns website. These standard products are available through Bourns’ authorized
distribution channels and product samples can be requested through Bourns’ Sales, FAE andcustomer service teams.
As our valued customer, we invite you to leverage Bourns’ extended range of high-quality,advanced magnetic solutions designed to help you address requirements in a variety ofapplications.

~ Continued ~IC23012
Americas: Tel +1-951 781-5500

EMEA: Tel +36 88 885 877

Asia-Pacific: Tel +886-2 256 241 17americus@bourns.com

eurocus@bourns.com

asiacus@bourns.com

Bourns Releases Standard Kaschke Magnetic Components
May 26, 2023
Page 2 of 5

Model 04770x Series Common Mode Chokes
This series is characterized by wide band performance of interference suppression with excellent
attenuation of symmetric and asymmetric noise. These common mode chokes target applications
such as Switched-Mode Power Supplies (SMPS), drives and control circuits, wall boxes, home
appliances and industrial applications.
The Model 04770x Common Mode Choke Series has a current rating up to 14 A , an inductance
range from 1.5 to 3.3 mH and an operating temperature range from -25 °C to +125 °C. All models
are compliant with the EN 138100 standard and are RoHS compliant*. Please see the following
table for additional information regarding the available part numbers for these common mode
chokes.

BournsPart NumberInductance(mH ± 30 %)Current Rating(A)

DC Resistance(Ohms)

Dielectric Strength(kVeff)

0477002 x 1.5140.0073

2.5047701

2 x 1.8130.0082.5047702

2 x 2.2

120.0092

2.5047703

2 x 2.7

110.01042.5047704

2 x 3.3

100.0115

2.50477xx Series Features

Applicationsn Compact sizen Broadband damping characteristics
n Excellent attenuation for symmetric and asymmetric noisen Compliant with EN 138100 standardsn Glue-free constructionn RoHS compliant*n Frequency converters
n Wall boxesn Power supplies
n Drives and control circuits

Bourns Releases Standard Kaschke Magnetic Components
May 26, 2023
Page 3 of 5

Model 0556xx Series Current Sense Transformers
This series is ideal for use in a variety of applications such as Switched-Mode Power Supplies(SMPS), motor control, overload sensing, and other AC applications.
The Model 0556xx Current Sense Transformers have a current rating of 0.1- 40 A, are ideal for
frequencies from 50 Hz up to 3 MHz, and have an operating temperature range from -30 °C to+125 °C. The available turns ratio is from 1:50 to 1:2500. The isolation between windings is designed
to provide reinforced insulation. This series is RoHS compliant*. Please see the table below for
additional information regarding the available part numbers for these transformers.

Inductance

Volt-time
Product on
Secondary(Max.)

SecondaryDC Resistance(Ohms)

10-300 kHz

6 mH

180 V-µs0.140

100:110-300 kHz

24 mH

360 V-µs

0.47055652

200:110-300 kHz

96 mH

715 V-µs

1.8055653

300:110-300 kHz

216 mH

1070 V-µs

3.4055654

400:110-300 kHz

384 mH

1430 V-µs

5.7055655

500:110-300 kHz

600 mH

1785 V-µs

9.4055656

600:110-300 kHz

864 mH

2140 V-µs

13.5055657

1000:110-300 kHz

2400 mH

3570 V-µs

35055658

1000:1

50 Hz

30 H

6.4 V-ms

25055659

1500:150 Hz

67.5 H

9.5 V-ms

52055660

2000:150 Hz120 H

12.7 V-ms

100055661

2500:150 Hz

187.5 H

15.9 V-ms

135055662

50:1

0.2-3 MHz

0.77 mH

180 V-µs0.140055663

100:1

0.2-3 MHz

3.1 mH360 V-µs

0.47055664200:1

0.2-3 MHz12.4 mH

715 V-µs

1.8Bourns
Part NumberTurns Ratio
Sec:PriFrequency
Range05565050:1055651

Current Rating(A)

0.1 - 400556xx Series Features

Applications

n Rated current on primary up to 40 A
n Through-hole technology
n Frequency 50 Hz up to 3 MHz
n Operating temperature range: -30 to +125 °C
n RoHS compliant*n Switched-mode power supplies (SMPS)
n Motor control
n Overload sensing
n AC applications

Bourns Releases Standard Kaschke Magnetic Components
May 26, 2023
Page 4 of 5

Model 063xxx and 093830 Series SP-E16/5 Flyback Transformers
Bourns Custom Magnetics Product Line is also introducing the new Model 063xxx/093830 SmartPower Safety
Transformer Series. This concept is based on a standard E 16/4,7 power ferrite core with a high clearance, highcreepage distance coil construction designed for various silicon controller families. All transformers are VDE
approved.
The Model 063xxx Transformer Series is capable of transferring up to 9 watts and is optimized for a working
frequency of 132 kHz. It offers two outputs with reinforced insulation which can be operated either individually, inparallel or in series and includes one shield winding for optimized EMC behavior. The input voltage range varies
from 85 to 265 VAC with an operating temperature range from -25 °C to +125 °C. This series is RoHS compliant*.
Please see the table below for additional information regarding the available part numbers for these transformers.
E 16/5 Platform

BournsPower**Part Number(W)0639293063932
6093830
8063934
9InputVoltage85-265
VAC

PrimaryInductance
3.9 mH ± 10 %1.55 mH ± 15 %1.58 mH ± 12 %0.89 mH ± 10 %Output 1Output 2

6 V / 0.25 A
12 V / 0.25 A
6 V / 0.65 A
12 V / 0.37 A

6 V / 0.25 A
12 V / 0.25 A
6 V / 0.65 A
12 V / 0.37 A

Creepage≥ 8 mmAUX

Shield---X
X
X** The “Power” shown is the nominal power of the supply. It may vary depending on the design of the circuit.

Model 0949xx Series SP-E 20/6 Flyback Transformers
The new Model 0949xx Series SmartPower Safety Transformers is based on a standard E20/6 power ferrite coreshape with a high clearance and high creepage distance coil construction designed for various silicon controller
families. All transformers are VDE approved.
The Model 0949xx Transformer Series is capable of transferring up to 22 watts and is optimized for a working
frequency of 132 kHz. It offers two outputs with reinforced insulation which may be operated individually, parallelor in series connection and includes one bias winding for controller feedback. The input voltage range varies from85 to 265 VAC with an operating temperature range from -25 °C to +125 °C. This series is RoHS compliant*. Please
see the table below for additional information regarding the available part numbers for these transformers.
E 20/6 Platform

BournsPower**Part Number(W)09493222094931
094929

Input
VoltagePrimaryInductance

Output 1

Output 2

Creepage

AUX

Shield85-265VAC

0.94 mH ± 10 %12 V / 1.2 A
6 V / 1.8 A
12 V / 0.9 A

5 V / 1.4 A
6 V / 1.8 A
12 V / 0.9 A≥ 8 mmXXX--** The “Power” shown is the nominal power of the supply. It may vary depending on the design of the circuit.

063xxx, 093xxx & 0949xx Series FeaturesApplicationsn Can assist in compliance with EN 62368, EN 60335 and EN61558 standards
n Reinforced insulation – 400 V working voltage
n Operating temperature range: -25 to +125 °C
n VDE approvedn RoHS compliant*n Safety insulated transformer for Switched-Mode
Power Supplies (SMPS)n Designed for use in SMPS applications based on
semiconductors from various AC-DC conversion
silicon manufacturers

Bourns Releases Standard Kaschke Magnetic Components
May 26, 2023
Page 5 of 5

Model 071923/093267 EMC Filter Chokes
These models are characterized by wide-band performance of interference suppression withexcellent attenuation of symmetric and asymmetric noise. These EMC filter chokes, ideallydesigned for our SmartPower Safety Transformer series, also target applications such as low power
Switched-Mode Power Supplies (SMPS), drives and control circuits, home appliances and industrial
applications.

BournsPart NumberInductance(mH ± 30 %)Current Rating(A)DC Resistance(Ohms)

Dielectric Strength(kVeff)

0719232 x 220.28

3.0

1.0093267

2 x 27

0.50

2.0

1.5

Model 071923 and 093267 Features

Applicationsn Compact sizen Broadband damping characteristics
n Excellent attenuation for symmetric and asymmetric noisen Compliant with DIN EN 60938-2
n RoHS compliant*n Frequency converters
n Low power SMPS
n Drives and control circuitsn Home appliances

Samples and production quantities are now available.
For additional details on these new Common Mode Chokes, Current Sense Transformers, Flyback
Transformers and EMC Filter Chokes, visit the Bourns website at www.bourns.com/products/
magnetic-products.
If you have questions or need additional information, please feel free to contact Bourns Customer
Service/Inside Sales.

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.