Electronic Coils, Transformers & Other Inductors
4 tracked issuers filing with the SEC under this industry classification.
Issuers
4
Filings
40
SIC Code
3677
Industry Overview
Electronic Coils, Transformers & Other Inductors
Electronic Coils, Transformers & Other Inductors producers in SIC 3677 design magnetics that manage power conversion, signal integrity, and filtering for automotive EV platforms, aerospace avionics, medical devices, industrial automation, telecom/5G gear, consumer electronics, and renewable energy inverters. Core products span surface-mount inductors, common-mode chokes, current sensors, and custom high-frequency transformers, often paired with design services to meet EMI, thermal, and reliability specs. Typical customers demand tight tolerance, low loss, and compact footprints, driving investment in ferrite and powder materials, automated winding, and co-development with wide-bandgap SiC/GaN power stages. Major risks include copper and rare-earth price volatility, trade and export controls, UL/IEC safety certifications, RoHS/REACH substance compliance, and liability from field failures or recalls. 2024–2025 trends center on miniaturization for wearables, higher efficiency for fast chargers and data centers, grid-hardening components for storage and solar, and reshoring to improve supply resilience. For ongoing disclosures and competitive signals, view live SEC filings on Earnings Feed.
Source: Earnings Feed research · 11/23/2025
Latest Filings
- 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Jan 15, 4:33 PM ET438.4 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Dec 10, 3:43 PM ET193.6 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Dec 3, 1:43 PM ET236.9 KB - 10-QBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-Q
Nov 4, 12:32 PM ET11.3 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Oct 29, 4:24 PM ET798.9 KB - 10-QBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-Q
Jul 31, 3:24 PM ET10.8 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Jul 24, 4:27 PM ET968.5 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Jul 3, 5:06 PM ET182.0 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
May 28, 3:21 PM ET191.6 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
May 21, 4:15 PM ET362.6 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
May 6, 4:51 PM ET1.7 MB - 10-QBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-Q
May 1, 1:25 PM ET9.2 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Apr 24, 5:28 PM ET658.5 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Mar 18, 3:32 PM ET219.5 KB - 10-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-K
Feb 28, 2:12 PM ET17.6 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Feb 18, 4:44 PM ET963.4 KB - S-1/AGo Green Global Technologies Corp.$GOGR
Go Green Global Technologies Corp. S-1/A
Feb 10, 4:19 PM ET7.1 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Feb 7, 11:05 AM ET535.3 KB - 8-K/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K/A
Jan 29, 3:24 PM ET2.6 MB - S-1/AGo Green Global Technologies Corp.$GOGR
Go Green Global Technologies Corp. S-1/A
Jan 14, 11:28 AM ET7.8 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Nov 20, 12:30 PM ET2.3 MB - SC 13GGo Green Global Technologies Corp.$GOGR
Go Green Global Technologies Corp. SC 13G
Nov 18, 7:40 PM ET47.1 KB - SC 13G/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13G/A
Nov 12, 1:21 PM ET6.5 KB - SC 13D/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13D/A
Nov 7, 4:04 PM ET148.9 KB - SC 13G/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13G/A
Nov 4, 11:17 AM ET5.6 KB - 10-QBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-Q
Oct 29, 1:37 PM ET9.6 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Oct 23, 4:19 PM ET718.2 KB - SC 13D/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13D/A
Oct 17, 4:08 PM ET148.8 KB - SC 13D/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13D/A
Oct 7, 4:33 PM ET150.6 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Sep 24, 3:10 PM ET3.5 MB - SC 13D/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13D/A
Sep 20, 6:05 PM ET159.8 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Sep 18, 9:29 PM ET1.5 MB - S-1/AGo Green Global Technologies Corp.$GOGR
Go Green Global Technologies Corp. S-1/A
Aug 27, 5:28 PM ET1.6 MB - SC 13D/ABEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ SC 13D/A
Aug 15, 4:07 PM ET153.6 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Aug 6, 11:51 AM ET399.1 KB - 10-QBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 10-Q
Jul 31, 11:04 AM ET9.1 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Jul 24, 4:20 PM ET672.8 KB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
Jul 2, 4:07 PM ET214.8 KB - S-1/AGo Green Global Technologies Corp.$GOGR
Go Green Global Technologies Corp. S-1/A
Jun 20, 5:23 PM ET8.2 MB - 8-KBEL FUSE INC /NJ$BELFA
BEL FUSE INC /NJ 8-K
May 14, 3:18 PM ET189.4 KB
Featured Issuers
4Classification
- SIC Code
- 3677
- Total Issuers
- 4
- Recent Filings
- 40