Due to years of experience in the field of inductive components, JHCOILS currently supply a wide range of high frequency ferrite core bobbin in a variety of types, like EE, ETD, EPC, POT, PQ type. If you have any requirement for transformer bobbin, fell free contact us.
As the name suggests, Transformer BOBBIN plays a role in supporting the COIL in the transformer. Coil bobbin formed by a core housing portion which has a magnet wire
According to the different nature material of the transformer bobbin, it is divided into: thermoplastic material and thermosetting material. Thermosetting materials we commonly use are nylon (NYLON), plastic (PET), and plastic (PBT). Thermosetting materials we commonly use are Bakelite (PM).
According to shape of transformer bobbin, BOBBIN is divided into vertical, horizontal, composite, drawer, cell, and double cells.
EE Serious Transformer Bobbin
The bobbin EE is designed for perfect windings and zero defect mounting on and in printed circuit boards. Bobbin EE surface mount “plastic housing” and internal well can accommodate a ferrite core with windings attached to surface pins
| Products | Datasheet | Product Code | Description | Ask for sample |
|---|---|---|---|---|
 |  Check it | EE01 | E12.5 Vertical 5+5 Transformer BOBBIN | Contact Us |
 Enlarge |  Check it | EE02 | E105.55 Horizontal 4+4 Ferrite BOBBIN | Contact Us |
 Enlarge |  Check it | EE03 | E13610 Vertical 5+5 BOBBIN | Contact Us |
 Enlarge |  Check it | EE04 | E25106 Vertical 3+3 BOBBIN | Contact Us |
 Enlarge |  Check it | EE05 | E331413 Vertical 17+17 BOBBIN | Contact Us |
 |  Check it | EE06 | E331413 Vertical 18+18 Transformer BOBBIN | Contact Us |
PQ Serious Transformer Bobbin
The bobbin PQ is easy to use. Cost: low to moderate. High efficient bobbin core with high permeability. Bobbin PQ surface mount “plastic housing” and internal well can accommodate a ferrite core with windings attached to surface pins
| Products | Datasheet | Product Code | Description | Ask for sample |
|---|---|---|---|---|
 |  Check it | PQ01 | PQ2016 Vertical 6+8 transformer bobbin | Contact Us |
 |  Check it | PQ02 | PQ2020 Vertical 6+8 transformer bobbin | Contact Us |
 |  Check it | PQ03 | PQ3220 Vertical 6+6 transformer bobbin | Contact Us |
 |  Check it | PQ04 | PQ3225 Vertical 6+6 transformer bobbin | Contact Us |
 |  Check it | PQ05 | PQ3535 Vertical 6+6 transformer bobbin | Contact Us |
 |  Check it | PQ06 | PQ4040 Vertical 6+6 transformer bobbin | Contact Us |
 |  Check it | PQ07 | PQ5050 Vertical 6+6 transformer bobbin | Contact Us |
POT Serious Transformer Bobbin
The bobbin POT is easy to use. Cost: low to moderate. High efficient bobbin core with high permeability. Bobbin POT made with featuers of Durable construction, surface mount “plastic housing” and internal well can accommodate a ferrite core with windings attached to surface pins
| Products | Datasheet | Product Code | Description | Ask for sample |
|---|---|---|---|---|
 |  Check it | POT01 | POT40 Vertical 6+6 BOBBIN | Contact Us |
 |  Check it | POT02 | POT3019 Vertical 5+5 BOBBIN | Contact Us |
 |  Check it | POT03 | POT3314 Vertical 5+5 BOBBIN | Contact Us |
EFD Serious Transformer Bobbin
The EFD transformer bobbin delivers precision performance for compact high-frequency power designs. Engineered with UL94 V0 flame-retardant PBT+30% glass fiber, it ensures reliable insulation up to 3kV RMS (IEC 60664-1 certified), making it ideal for space-constrained applications like 65W USB-PD fast chargers and LED drivers.
| Products | Datasheet | Product Code | Description | Ask for sample |
|---|---|---|---|---|
 |  Check it | EFD01 | EFD157.54.6 Horizontal 4+5 BOBBIN | Contact Us |
 |  Check it | EFDT02 | EFD2512.59 Horizontal 5+5 BOBBIN | Contact Us |
 |  Check it | EFD03 | EFD20106.6 Horizontal 5+5 BOBBIN | Contact Us |
 |  Check it | EFD04 | EFD25259 Horizontal 5+5 BOBBIN | |
 |  Check it | EFD05 | EFD30159 Horizontal 6+6 BOBBIN |
ETD Serious Transformer Bobbin
Built for heavy-duty industrial environments, the ETD transformer bobbin combines robust construction with advanced thermal management. Top applicatons like
| Products | Datasheet | Product Code | Description | Ask for sample |
|---|---|---|---|---|
 |  Check it | ETD01 | ETD291510 Vertical 7+7 BOBBIN | Contact Us |
 |  Check it | ETD02 | ETD341711 Horizontal 7+7 BOBBIN | Contact Us |
 |  Check it | ETD03 | ETD492516 Horizontal 10+10 BOBBIN | Contact Us |
 |  Check it | ETD04 | ETD542719 Horizontal 11+11 BOBBIN | Contact Us |
 |  Check it | ETD05 | ETD593122 Horizontal 12+12 BOBBIN | Contact Us |
 |  Check it | ETD06 | ETD593122 Horizontal 13+13 PET BOBBIN | Contact Us |
Features of transformer core bobbin
Coil bobbins are a must parts for the transformer, acting to form the shape of the winding coil. They serve as passive electrical components in inductors, chokes, transformers and relays. Coil bobbins must possess corrosion resistance, good electrical insulating characteristics and good machinability, so most of our transformer core bobbin are made of phenolic.
Due to years of experience in the field of inductive components, JHCOILS currently supply a wide range of high frequency ferrite core in a variety of types like: EE Ferrite Core bobbin, EC Ferrite core bobbin, PQ Ferrite Magnetic Core bobbin, POT Ferrite core, EPC Ferrite core bobbin…
Our products are widely used in a large variety of industries, such as LED Green lighting, Switch-mode power supplies, Data transmission, Telecommunications, Measuring instruments, Interference suppression, Antennae technology, Inductive sensors, Medical technology, Green alternative energy, The automotive industry, Telecommunication, Professional broadcasting technology, Medical technology and Video technology, as well as in electronic data-processing facilities.
