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EF13 phenolic bobbins are specialized, high-temperature resistant coil formers used for PCB-mounted, high-frequency transformers and inductors. Typically made from UL 94V-0 rated phenolic material, they feature 4+4 pin configurations, 2.5mm pin pitch, and a horizontal design suited for SMPS (Switch Mode Power Supply) applications.
Key Characteristics and Specifications
- Material: Phenolic (high thermal stability, durable).
- Dimensions: Approximately .
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Web results
EF13 Transformer Bobbin For PCB Mounting ...
Mycoiltech
https://www.mycoiltech.com › ef13-transformer-bobbin-...
Mycoiltech
https://www.mycoiltech.com › ef13-transformer-bobbin-...
EF13 Transformer Bobbin For PCB Mounting Transformer With 4+4 Pins ; Material · Phenolic ; Part Number · MCT-EF1301(H4+4P) ; Brand Name · MCT ; Color · black.Read more
EF13 Transformer Bobbin For PCB Mounting ...
Sfyh.com
https://www.sfyh.com › ef13-transformer-bobbin-for-pc...
Sfyh.com
https://www.sfyh.com › ef13-transformer-bobbin-for-pc...
EF13 Transformer Bobbin For PCB Mounting Transformer With 4+4 Pins ; Material · Phenolic ; Part Number · MCT-EF1301(H4+4P) ; Brand Name · MCT ; Color · black.Read more
4 4 Pins Ef13 Bobbin
Mycoiltech
https://www.mycoiltech.com › 4-4-pins-ef13-bobbin_sp
Mycoiltech
https://www.mycoiltech.com › 4-4-pins-ef13-bobbin_sp
Bobbin Size=35.3mmX19.0mmX34.8mm. Pin pitch=5.08mm. Parallel Distance=15.24mm. SMPS transformer has small size, high power and low cost, we design and ...
Phenolic Bobbin EE13 Vertical - High Frequency Transformer
Alibaba.com
https://www.alibaba.com › ... › Ferrites old
Alibaba.com
https://www.alibaba.com › ... › Ferrites old
Found in a variety of shapes and sizes, phenolic bobbin ee13 vertical are integral in numerous applications, from consumer electronics to industrial equipment.Read more
Phenolic Bobbin Horizontal Ee13 5V 1A High Flyback ...
Changxing ChaoNeng Technology Co., Ltd.
https://chaoneng.en.made-in-china.com › ... › Inductor
Changxing ChaoNeng Technology Co., Ltd.
https://chaoneng.en.made-in-china.com › ... › Inductor
Phenolic Bobbin Horizontal Ee13 5V 1A High Flyback Transformer Ee16 ; Packaging Form. Power Coils ; Inductor Value. Variable Inductor ; Material. Ferrite.Read more
$0.10In stockReview by MIC_BUYERFree delivery
Phenolic Ee13 Transformer Bobbin, For Transformers
IndiaMART
https://www.indiamart.com › ... › Transformer Bobbins
IndiaMART
https://www.indiamart.com › ... › Transformer Bobbins
Product Specifications. Material: Phenolic; Usage/Application: Transformers; Number Of Terminals: 12; Shape: Vertical; Color: Black ; Product Description.Read more
₹10.00
Low Lamination Power Frequency Transformer with IEC
transformerbobbin.com
http://www.transformerbobbin.com › showroom › low-la...
transformerbobbin.com
http://www.transformerbobbin.com › showroom › low-la...
Material: Phenolic ... EE13, EE16, EE19, EF13, EF16, EF19. PIN: 2+2/3+3/4 ... BOBBIN, Shell Type Bobbin Transformer Framework, Plastic Connector Fo9r Auto Parts.
Medical implants and anti-scarring agents
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
The invention relates to the use of implants combined with an anti-scarring agent in order to inhibit the scarring which can occur, when the implant is ...
People also ask
What size is the L style bobbin?
13/16"
L-Style Bobbins
These bobbins have a diameter of 13/16" and measure 11/32" wide. L-style bobbins have the same diameter as Class 15 bobbins, so in a pinch, they can sometimes be used in sewing machines that use Class 15 bobbins.Jul 8, 2025
These bobbins have a diameter of 13/16" and measure 11/32" wide. L-style bobbins have the same diameter as Class 15 bobbins, so in a pinch, they can sometimes be used in sewing machines that use Class 15 bobbins.Jul 8, 2025
Bobbin Size Chart - The WAWAK Sewing Supplies Blog
The WAWAK Sewing Supplies Blog
https://blog.wawak.com › post › bobbin-size-chart
The WAWAK Sewing Supplies Blog
https://blog.wawak.com › post › bobbin-size-chart
What is a bobbin transformer?
A bobbin-wound transformer is an electromagnetic device that transfers electrical energy between two or more circuits through electromagnetic induction. The winding is done on a cylindrical bobbin, which provides structural support and helps to minimize electromagnetic interference.
Bobbin-Wound Transformers: Theory, Design, and Applications
Gowanda Electronics
https://www.gowanda.com › application-notes › bobbin-...
Gowanda Electronics
https://www.gowanda.com › application-notes › bobbin-...
Web results
EE13 Transformer Bobbin 4+4 Pins Dip Type Phenolic ...
Mycoiltech
https://www.mycoiltech.com › ee13-transformer-bobbin-...
Mycoiltech
https://www.mycoiltech.com › ee13-transformer-bobbin-...
Bobbin Size=35.3mmX19.0mmX34.8mm. Pin pitch=5.08mm. Parallel Distance=15.24mm. SMPS transformer has small size, high power and low cost, we design and ...Read more