Storage Chokes and Smoothing Chokes
Race Track Choke
Block Core Choke 2 mH / 27 A
block core choke 1 mH / 27 A
UU-Core-Choke 60 A
Highly efficient Choke 290 µH/133 A
Highly efficient Choke 2 mH/22 A

- Highly efficently power choke, 80 mm x 60 mm x 75 mm
Technical data:
- Performance 2 mH / 22 ARMS
- Imax 30 App
- Iss 5 App
- Frequency 22 kHz
- RDC 6,5 mOhm
- Dimension 80 mm x 60 mm x 75 mm
- Weight 1500 g
Losses:
max. 15 W with 130 °C surrounding temperature
High Current Chokes up to 30 mH / up to 150 A

- High Current Chokes, inductivities up to 30 µH, currents up to 150 A
Structural Shapes:
- E/ETD
- vertical
- horizontal
Materials:
- KoolMy
- Fe-powder
- Ferrites
Properties:
- low inductivity
- high currents
Advantages:
- very small
- low loss
- easy to place
- cost-effective
Choke 30 µH/50 A
- low lost
- very small winding capacity
- Winding space is optimally exploited
Power Choke 2 mH/25 A
- low lost
- very small winding capacity
- winding space is optionally exploited
AC Smoothing Chokes 25 A

- AC Smoothing Chokes, 150 mm x 120 mm x 70mm, silicon steel
Technical Data:
- 4 mH, 25 Aeff, 50 Hz
- Ripple 5 App, 16 khz
- RDC max 40 mOhm
- isolation strength 2.500 Veff
Flattened Copper Helical Winding:
- 1-layer
- low capacity
- high resonant frequency
- absolutely low-noise
- no magnetostriction
- very small and low-loss design
Application:
- photovoltaic
- frequency converter
AC Smoothing Chokes 50 A
Technical Data:
- 750 µH, 50 Aeff, 16,66 Hz
- Ripple 10 App, 16 khz
- RDC max 12 mOhm
- insulation strength 2.500 Veff
- vacuum potting
Advantages:
- absolutely low-noise
- no magnetostriction
- very small and very low-loss design
Application:
- rail technology
- air conditioners
Ring Core Storage Chokes
Ring Core Choke in upend technique
Standard range of Low-Loss Storage Chokes
Advantages:
- low magnetic scatter field
- low power loss through the use of different core materials like: Powder, HiFlux, MPP or KoolMy cores, tape-wound core and cut tape-wound cores as well as pot and block cores
- with inductivity values from 1 µH and currents up to 1,000A, chokes for frequencies up to 1 MHz can be realised
Structural shapes in the versions:
- vertical, horizontal
- open, potted, cast
- with pins (THT), SMD
Windings according to requirement:
- round and flattened wire
- HF-stranded wire
Advantages of a flattened wire edgewise wound winding:
- optimum usage of the winding space; in the case of chokes of edgewise-would flattened copper strands, the efficiency is improved and a high current load, e.g. in high-capacity PFCs is made possible
- single-layer winding - high resonance frequencies are reached with this
Applications:
- Switching regulator IC's, like Linear Technology, National Semiconductor, On Semiconductor, STMicroelektronics, Texas Instruments and Fairchild
- in switched mode power supplies, inverters and voltage transformers
















