• Efd25 SMD High Frequency Power Transformer Audio Transformer
  • Efd25 SMD High Frequency Power Transformer Audio Transformer
  • Efd25 SMD High Frequency Power Transformer Audio Transformer
  • Efd25 SMD High Frequency Power Transformer Audio Transformer
  • Efd25 SMD High Frequency Power Transformer Audio Transformer
  • Efd25 SMD High Frequency Power Transformer Audio Transformer

Efd25 SMD High Frequency Power Transformer Audio Transformer

Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
Phase: Single
Core: Core-type Transformer
Cooling Method: Dry-type Transformer
Winding Type: Auto-transformer
Certification: ISO9001-2000, ISO9001, CCC
Customization:

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Basic Info.

Model NO.
EFD20 EFD25 EFD30
Usage
Single-phase Transformer, Rectifier Transformer, Power Transformer
Frequency Characteristics
High Frequency
Shape of Core
Efd
Brand
Okerda
Type of Transformer
SMD Transformer
Frequency
High Frequency 20kHz-500kHz
Working Temperature
-40ºC-125ºC
Storage Temperature
-25ºC-85ºC
Storage Moisture
30-95%
Transport Package
Carton on Pallet
Specification
EFD20 EFD25 EFD30
Trademark
OEM
Origin
China
HS Code
8504319000
Production Capacity
800000 PCS/Month

Product Description

EFD20 SMD high frequency Power Transformer Audio Transformer

Efd25 SMD High Frequency Power Transformer Audio Transformer

EFD transformer features:

  • Description: EFD
  • Type: from EFD 9.5 to EFD 25
  • Applications:
    • Switching power supplies
    • LED Driving
    • DC/AC-DC converters
    • DC/AC-AC inverters
    • Ballasts
    • TV/monitors
    • ADSL
    • Audio visual equipment
    • Office automation
    • PDAs
    • Notebook computers
    • DSC
    • TFT-LCD monitors
    • ISDN
    • Various electronic equipment
    • Ultra-thin electronic devices
  • Customers' specifications are welcome
EFD15 EFD18 EFD20 EFD25 EFD30 SMD transformer
  A B C D E F G
EFD15/15/5 15.0±0.4 11.0±0.35 5.3±0.15 4.65±0.15 7.5±0.15 5.5±0.25 2.4±0.1
EFD15/18/7 14.9±0.6 11.1±0.3 5.6±0.2 6.8±0.2 8.75±0.15 6.2±0.2 4.6±0.2
EFD18/40/5 18.5max 13.1min 6.0±0.15 5.3±0.15 20.1±0.2 17.1±0.2 3.0±0.2
EFD20/20/7 20.0±0.55 15.4±0.5 8.9±0.2 6.65/+0.2/0.15 10.0±0.25 7.7±0.25 3.6±0.2
EFD20/23/6 20.0±0.55 15.4±0.5 8.9±0.2 5.6±0.1 11.5±0.15 9.3±0.15 3.6±0.15
EFD20/23/5 20.0±0.4 15.4±0.5 8.9±0.2 5.4±0.1 11.5±0.15 9.3±0.15 3.6±0.15
EFD25/25/9 25.0±0.65 18.7±0.6 11.4±0.2 9.1±0.2 12.5±0.25 9.3±0.25 5.2±0.25
EFD25/26/12 25.05±0.65 18.8min 8.8±0.25 12.45±0.25 12.9±0.2 9.85±0.25 8.3±0.3
EFD25/31/11 25.0±0.5 19.0min 10.0±0.2 11.0±0.2 15.3±0.25 12.0±0.3 6.5±0.2
EFD30/30/9 30.0±0.8 22.4±0.75 14.6±0.3 9.1±0.3 15.0±0.25 11.2±0.3 4.9±0.15
EFD30/30/9A 30.75max 23.1min 14.6±0.25 9.0±0.2 15.5max 11.5±0.2 4.9±0.15
EFD31/30/9 31.7max 23.8min 14.6±0.30 9.0/+0.3/-0.2 15.2±0.3 11.5±0.2 4.9±0.15
EFD33/40/10 33.0±0.5 25.5min 13.0±0.2 10.0±0.2 20.0±0.25 15.5±0.25 5.5±0.2

SMD power transformer:
1. Low profile. 
2. Low D.C. resistance and large permissible D.C. current. 
3. Little co-planarity due to special design of construction. 
4. Wire burst resistant due to special construction. 
5. This can be surface mount assembly and reflow soldering is also possible. 
6. Available for mounting machine due to supply in a form of embossed tape carrying. 


Application:
1. Multi-output DC-DC converter transformer. 
2. Camcordey. 
3. LCD television set. 
4. Small size communicating equipment. 
5. Portable telephone. 
6. Personal Digital Assistants.

7. Applicable to light up cold cathodes fluorescent lamp of display.
8. DSC, PDA, Scanner, Car Navigation, Notebook PC, LCD monitor and LCD TV.


Related Products
Efd25 SMD High Frequency Power Transformer Audio TransformerEfd25 SMD High Frequency Power Transformer Audio TransformerEfd25 SMD High Frequency Power Transformer Audio TransformerEfd25 SMD High Frequency Power Transformer Audio Transformer

 
WORKSHOP
Efd25 SMD High Frequency Power Transformer Audio TransformerEfd25 SMD High Frequency Power Transformer Audio Transformer

Efd25 SMD High Frequency Power Transformer Audio Transformer
FAQ

Q1. Are you manufacturer in China?
  Yes, we have over 20 years experience in supplying transformers and inductors.

Q2. What is your MOQ?
  Our usual MOQ is 1000pcs.

Q3. Can I place a sample order?
  Yes, please kindly contact us for more details.

Q4. What's the delivery time for samples?
  Usually 5 - 10 working days.

Q5. What's the lead time for mass production?
  Normally 15-30 working days, based on your order quantity.

Q6. What's the payment term?
  We accept T/T, L/C, Western Union and Paypal etc.

Q7. Can you make customized products?
  Yes, of course. We will do as per customer's design.

Q8. Is OEM accepted?
  Yes, welcome OEM project. 

Q9. Is it ok to print my logo on the label? 
  No problem, we can make it as per your requirements.  

Q10. Can your factory print our brand on the product?
  Yes, we can add customer's logo/brand on the product with the authorization from customers.


 

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