Ferrite core
A full lineup from low frequency to high frequency range.
We offer ferrite cores as a noise countermeasure. We have various types available, such as ring type, split type, and flat type, to meet our customers' needs.
basic information
1. Split Ferrite Core SR/SRM Type 2. Non-Split Ferrite Core RA/RC/RM Type 3. Split Ferrite Core Nylon Clamp ST Type 4. Ferrite Core for FPC FD Type
Price range
P1
Delivery Time
P1
Model number/Brand name
E04SRM series
Applications/Examples of results
You can use this for electromagnetic wave countermeasures. Impedance based on the number of cable turns and ferrite cores. If the impedance is insufficient with one turn, you can increase the number of turns to 2 or 3 to increase the impedance. Impedance increases by the square of the number of turns. If you want to add a ferrite core later, using a split type allows for easy installation. The cut surface of our split type is processed to prevent gaps from occurring. For the ferrite core characteristic diagram (Z-f characteristics), please refer to our website. http://www.seiwa.co.jp/index.html
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News about this product（19）
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Seiko Electric Co., Ltd. will exhibit at the 2017 Nagoya Automotive Technology Exhibition.
Event Period: June 28 (Wednesday) to June 30 (Friday), 2017, from 10:00 to 18:00 Final day ends at 17:00 Venue: Port Messe Nagoya (Nagoya International Exhibition Hall) Booth Number: 43 Exhibited Products: - Noise Mitigation Connector Modules - High Current Ferrite Cores - Self-Wrapping Shielding Tubes Highlights: We offer a wide range of AM and FM radio noise mitigation products, focusing on ferrite cores and shielding tubes for automotive harnesses. In addition to standard products, we can also provide custom products tailored to customer requests. If you are facing issues with the performance or cost of your current noise mitigation products, please come and visit us.
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Seiwa Electric Co., Ltd. will exhibit at the 28th EMC and Noise Control Technology Exhibition (TECHNO-FRONTIER 2015).
Event Dates: May 20 (Wednesday) to May 22 (Friday), 2015, from 10:00 to 18:00 Venue: Makuhari Messe, Booth Number: 6C-215 Our company provides optimal solutions for noise countermeasures and thermal management technologies for outdoor communication equipment, medical devices, and railway-related equipment. We invite you to view our noise countermeasure materials, as well as our thermal management and waterproof/dustproof materials, and composite modules, where you are sure to find something that catches your eye. Please be sure to stop by our booth. Seiwa Electric Co., Ltd. develops innovative solution products that meet societal needs. We develop electromagnetic noise countermeasure components that address all needs, including shielding, grounding, and filtering. Additionally, we assist your research in elemental technologies through practical evaluations and modeling in our in-house anechoic chamber. We are developing solution products for various cable protection, waterproofing, dustproofing, airtightness, and gripping as wiring protection materials.
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Hoshi and Electric Co., Ltd. will exhibit at the 5th Kansai Medical Device Development and Manufacturing Exhibition!
5th Kansai Medical Device Development and Manufacturing Exhibition Date: February 4 (Wednesday) to February 6 (Friday), 2015 Time: 10:00 AM to 6:00 PM (last day ends at 5:00 PM) Venue: Intex Osaka Booth Number: 6-35 We provide total solutions for medical device manufacturers, focusing on EMC countermeasure materials, as well as thermal, waterproof, and lighting modules that leverage our strengths. We have our own anechoic chamber available for rental. When using it, our technical staff will be present to assist with countermeasures. If you have any concerns, please feel free to consult with us.
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Seiko Electric Co., Ltd. will exhibit at the 7th International Car Electronics Technology Exhibition!
7th International Car Electronics Technology Exhibition (Automotive World 2015) Dates: January 14 (Wednesday) - 16 (Friday), 2015 10:00 AM - 6:00 PM (last day ends at 5:00 PM) Venue: Tokyo Big Sight Booth Number: West 3-67 With the spread of EVs and HVs, the importance of EMC measures for automobiles has increased significantly, and we provide optimal solutions. We will showcase the development of electromagnetic noise countermeasure components that meet various needs such as shielding, grounding, and filtering, as well as solutions for protecting various cables, waterproofing, dustproofing, airtightness, and clamps. Additionally, we will present new thermal management solution products such as heat-insulating paint, heat-dissipating paint, and thermal radiation sheets. We will also introduce our evaluation technologies.
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Seiko and Electric Co., Ltd. will exhibit at the 2014 Automotive Technology Exhibition (Automotive Technology Expo) in Nagoya.
Date: December 11, 2014 (Thursday) 10:00 AM - 8:00 PM December 12 (Friday) 10:00 AM - 5:00 PM Venue: Port Messe Nagoya <Nagoya International Exhibition Hall> Booth Number: 59 With the increasing importance of EMC measures for automobiles due to the proliferation of EVs and HVs, we provide optimal solutions. We will showcase the development of electromagnetic noise countermeasure components that meet various needs such as shielding, grounding, and filtering, as well as solutions for protecting various cables, waterproofing, dustproofing, airtightness, and clamps. Additionally, we will present new thermal countermeasure solution products such as heat-insulating paint, heat-dissipating paint, and thermal radiation sheets. We will also introduce our evaluation technology.
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Distributors
Hoshia Electric has established itself as a top manufacturer in various business fields, including information display systems such as road information boards, industrial lighting known for its waterproof and explosion-proof features under the name "Water Pearl," tunnel lighting that began with the full-scale installation in the Kanmon Tunnel, and resin products represented by "Cutting Duct." As a new business, we started the electromagnetic noise countermeasure (EMC) product business in 1997 to address electromagnetic noise issues arising from digital devices. In the LED business, we successfully developed a blue light-emitting diode in April 2002 and a white light-emitting diode in December of the same year. Based on these technologies, we are actively expanding our business in the field of LED lighting fixtures, ranging from roads and tunnels to industrial lighting. On March 9, 2018, Hoshia Electric Co., Ltd. was listed on the First Section of the Tokyo Stock Exchange. In April 2022, we transitioned to the Tokyo Stock Exchange Standard Market. Moving forward, we will continue to leverage our unique creativity and technological capabilities cultivated over the years to develop even more innovative products and strive for business expansion. Back to the roots of manufacturing "From the Kyoto to the world"