---- July 12th 2024 ----

CAGE Code: 5DME2
ITAR Registration Code: M28889
Call: 1 (800) 377-3244
Monday to Friday 8 A.M. - 5 P.M. (Pacific Time)
E-mail questions and requirements to: sales@coilws.com

Pricing is subject to change depending on product availability and backorders.
*Please Note: Items without price are listed for CWS' capability purposes.

HLB Series

- Torodial Common Mode Chokes based on ferrite cores.
- Dimensions : Outside Diameter: 36mm. Width or Height: 23mm

- Inductance range: 0.2 mH to 5 mH
- DCR : 5 milli ohms to 50 milli ohms
- Custom designs available
Toroidal Common Mode Line Chokes

  • Wound on high temperature nylon casing to protect windings
  • All insulating materials rated at 130 deg C or higher
  • Single layer wound for highest common-mode impedance over widest frequency range
  • UL 94VO recognized materials used
  • Meets 3mm creepage spacing for UL, CSA and IEC specifications
  • Available in either vertical or horizontal mount
  • Easy PC board mounting
  • Good vibration resistance
  • Exhibit excellent frequency response from 60 Hz to 500 Khz


Click the button to see examples of our custom wound products.
We wind anything to meet your needs


  • Power Line Filtering
  • Noise Suppression of DC Circuit For Switching Regulator
  • Protects Primary AC Side From Being Affected By A Switching Regulator
  • Filters Noise From Ultrasonic Equipment
  • Filters Electrostatic Noise From Power And Signal Lines
  • Eliminates Contact Noise
  • Filters Incoming Spikes For ICS And Equipments Using Microcomputers
  • Minimizes Noise Emissions By Conforming To FCC, VCCI, FTZ, CISPR Regulations
  • Minimizes Noise Emissions From Inverters

NOTES: Prices shown are for small or sample quantities.
1. Please call 800-377-3244 or email us at sales@coilws.com for production quantities quotes:
2. Not all parts are in stock. If parts are our of stock, delivery can be 4 to 6 weeks.
3. The data shown below can be sorted by Part Number, Inductance, Rated Current, DCR, or
any of the header columns. To sort click the column header. Click again to sort in reverse order.

Part Number Inductance Rated
DC Resistance
Temp. Rise OD (max.)
T (max)
Pitch (a) x (b)
on hand
HLB-302U-5A 3mH 5 70 52 34 23 33 18x16 0.8 30 0 $8.00
Buy Now
HLB-202U-5A 2mH 5 70 40 34 23 33 18x16 0.8 25 0 $8.00
Buy Now

Disclaimer: Coil Winding Specialist, Inc., its affiliates, agents, and employees acting on behalf of Coil Winding Specialist, Inc. (collectively, CWS) disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. CWS reserves the right at any time and from time to time to make changes to design, technical specification, or construction of any product listed on this website without notice. CWS also reserves the right to discontinue or limit sale of any product or service available throughout this website on temporary or permanently basis without notice. CWS highly recommends customers not to use its products offered on this website for inappropriate use and applications. Products should be tested for its suitability by prospective customers in all possible applications and conditions. Customers using or selling CWS products for use in other than recommended applications do so entirely at their own risk and agree to fully indemnify CWS from any damages arising or resulting from such use or sale.

WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go towww.P65Warnings.ca.gov.

Any Comments, Suggestions or Questions? Contact us!
Email: sales@coilws.com
CWS 353 West Grove Ave. Orange, California 92865
Call us Toll Free: 1-800-679-3184 or 1 (800) 377-3244

Tel: (714) 279-9010, Fax: (714) 279-9482

Copyright 2008, Coil Winding Specialist, Inc
Updated July, 2013

CAGE Code: 5DME2(Registered with www.ccr.gov)