SICCODE.comSIC LookupD Manufacturing36 Electronic and other Electrical Equipment and Components, except Computer Equipment367 Electronic Components and AccessoriesSIC 3677
SIC Code 3677 – Electronic Coils, Transformers, and other Inductors
Official 4-digit SIC code Source: OSHA SIC Manual Updated Nov 13, 2026
At a glance
Companies
More specific segments
Which businesses belong in SIC 3677?
Usually classified in SIC 3677
- Baluns
- Coil windings, electronic
- Coils, chokes and other inductors, electronic
- Constant impedance transformers
- Coupling transformers
Usually classified elsewhere
- Power, Distribution, and Specialty Transformers 3612 · Power, Distribution, and Specialty Transformers
- Telephone and Telegraph Apparatus 3661 · Telephone and Telegraph Apparatus
Official definition for SIC 3677 - Electronic Coils, Transformers, and other Inductors
Establishments primarily engaged in manufacturing electronic coils, transformers, and inductors.
Source: OSHA SIC Manual
Companies in SIC 3677 - Electronic Coils, Transformers, and other Inductors
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Tamura Kaken Corp. USA San Jose, CA | ||||
| Captor Corp Tipp City, OH | ||||
| South Haven Coli Inc South Haven, MI |
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Tamura Kaken Corp. USA · San Jose, CA
Contact Website Phone Employees -
Captor Corp · Tipp City, OH
Contact Website Phone Employees
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Key facts for SIC 3677 - Electronic Coils, Transformers, and other Inductors
- SIC code
- 3677
- Official title
- Electronic Coils, Transformers, and other Inductors
- Scope
- OSHA SIC Manual, establishment-level
- Division
- D Manufacturing (20–39)
- Industry group
- 367 Electronic Components and Accessories
- Official source
- OSHA SIC Manual
- Where SIC is used
- Used on EPA permit forms and in OSHA inspection data, as well as SEC filings and business lists. See which agencies still use SIC codes →
SIC Classification Hierarchy
Four official SIC levels, plus a more detailed commercial classification level.
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Industry · Official 4-Digit 3677 Electronic Coils, Transformers, and other Inductors
One example classification path is shown. Other branches may exist. The 6-digit Marketing Level is a commercial extension, not an official SIC classification.
Other codes in Industry Group 367: 3671 · Electron Tubes 3672 · Printed Circuit Boards 3674 · Semiconductors and Related Devices 3675 · Electronic Capacitors 3676 · Electronic Resistors 3678 · Electronic Connectors 3679 · Electronic Components, Not Elsewhere Classified
More specific segments in SIC 3677
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
126 U.S. companies across 1 segment · Segment codes are 6-digit marketing categories that extend the official 4-digit SIC code. They are not official SIC codes.
SIC 3677 is in your list, which already includes all 1 segment.
| Code | Segment | Companies | Build your list |
|---|---|---|---|
| 3677-98 | Electronic Coil & Transformers | 126 126 companies |
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Example companies in SIC 3677
See how SICCODE.com evaluates businesses using documented activities and official SIC definitions. Select a company to review its classification and the reasoning behind it.
116 verified U.S. companies
- Areva T And D Inc Philadelphia, PA View classification →
- Agile Magnetics Concord, NH View classification →
- Precision Econowind Inc North Fort Myers, FL View classification →
- Able Coil And Electronics Co. Inc Bolton, CT View classification →
- Maine Scientific Inc Brunswick, ME View classification →
- Stonite Coil Corp Trenton, NJ View classification →
- Electric Coil Service Inc Temple, PA View classification →
- Powell Power Electronics Co Inc Pleasanton, CA View classification →
NAICS and ISIC crosswalk for SIC 3677 - Electronic Coils, Transformers, and other Inductors
Correspondences in NAICS and ISIC for SIC 3677 - Electronic Coils, Transformers, and other Inductors. These mappings do not replace the official SIC definition.
| System | Code | Title |
|---|---|---|
| SIC This page | 3677 | Electronic Coils, Transformers, and other Inductors |
| NAICS | 334416 | Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing |
| ISIC Rev. 4 | 2610 | Manufacture Of Electronic Components And Boards Manufacture Of Electronic Components And Boards |
Sources for SIC 3677
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Official classification source U.S. Occupational Safety and Health Administration.
Standard Industrial Classification Manual (1987), SIC 3677. OSHA SIC Manual → -
SICCODE.com commercial data Company-record counts, coverage, and related commercial data are maintained by SICCODE.com. Methodology →
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About this classification
This page combines the official SIC definition with classification analysis, crosswalks, and SICCODE.com commercial data. Classifications are reviewed regularly by the Industry Classification Review Team.