Key Specifications/Special Features

Choke coil

• Specifications

• Electrical characteristics:

• Rated current: 2 to 30A

• Inductance at 1kHz: 3-40mH

• Direct current resistance: 9 to 118mΩ

• Saturated current: 3.5 to 20A

• Withstand resistance: one minute at 2kV AC

• Insulating resistance: 100MΩ minimum at 500V DC

• Operating temperature range: -25 to 80°C

• Maximum temperature: 120°C (class-E)

• Bobbin material: flame resistance 94V-0

• Features:

• Useful in wide variety of power conversion

• Isolates AC frequency currents from certain circuit

• Prevention of electromagnetic interference (EMI) and radio

• Frequency interference (RFI) from power supply lines

• Prevention of malfunctioning of electronic equipment

• Suppress common mode noise

• Low-winding capacitance

• Compact size and high-performance

• To start oscillation

• Wide frequency range

• Compliant with RoHS Directive

• Customized made with various specifications

• Applications:

• Output smoothly in power supplies

• Chopper controls

• Output smoothly (LPF) in large current digital amplifiers

• Switching mode power supply output smoothing circuit

• Electromagnetic interference (EMI) and radio frequency interference (RFI) filers

• Other oscillation circuits

• Features:

• High-saturation flux density

• Less flux leakage and beat

• Low radiation and low core loss

• Preciseness in inductance is remarkable

• High-current, horizontal or vertical mount

• Operating temperature: -55 to 105 degree Celsius

• Available in various types and specifications

• With housing and tubes available

• Applications:

• Switching power output smoothing circuits

• Most suitable as choke coils for high-frequency SMPs

• Countermeasures against spike ripples

• EMI/RFI filters

• DC/DC converters

• I/P and O/P devices

UF   Choke Coil

ET   Choke Coil

DR  Choke Coil

UT              Choke Coil

HT       Choke Coil

Product Details

Primary Competitive Advantages:

• Country of Origin

• Experienced Staff

• Guarantee/Warranty

• International Approvals

• Price

• Product Performance

• Quality Approvals

• Service

• Small Orders Accepted




Main Export Markets:

Asia

Australasia

Central/South America

Eastern Europe

North America

Western Europe

Any third-party trademarks or images shown here are for reference purposes only. We are not authorized to sell any items bearing such trademarks.

1.Merchandise name:

 Transformer, Electronic transformers, Power transformers, high frequency transformers, EE/EI/EC/EFD/PQ/EP/G/RM/DR/T type transformer, ET,EE power filter,UF,EE power filter,Voltage transformers,epoxy voltage transformer, ignition transformers, current transformer, sealed transformer, electric  transformer, hf transformers ,lighting transformer,lamp transformer, ac/ac transformer,choke coil, toroid inductor, toroidal coil, line filter, inductor, Low frequency transformer,Filter,Inductor/Choke Coil/Toroidal inductor

2.Features:
High-saturation flux density
Less flux leakage and beat
Low radiation and low core loss.
Preciseness in inductance is remarkable
High-current, horizontal or vertical mount
Operating temperature: -55 to 105 degree Celsius
Available in various types and specifications
With housing and tubes available.
3.Applications:
Switching power output smoothing circuits
Most suitable as choke coils for high-frequency SMPs
Countermeasures against spike ripples
EMI/RFI filters
DC/DC converters
I/P and O/P devices

.Remarks:

We could make custom-design transformers according to your requirement.Various bobbins as below:
EE5,EE8.3,EE10,EE13,EE16,EE19, EE22,EE25,EE28,EE30,EI30,EE33,EI33,EE55 series bobbins
EF12.6/EF16/EF20/EF25/EF32 series bobbins.
ETD29/ETD34/ETD39/ETD44/ETD49/ETD54/ETD59 series bobbins
ER28,ER35,ER42,EQ30,ERL28,ERL35,ERL39
RM4/RM5/RM6/RM7/RM8/RM10/RM12/RM14 series bobbins
PQ1616 to PQ5050 series bobbins.
EFD15,EFD20,EFD25,EFD30 series bobbins.
EPC13,EPC19,EPC25,EPC30 series bobbins
EP7,EP10,EP13,EP17,EP20 series bobbins
POT0905/POT1811/POT2311/POT2318/POT3019/POT3622 bobbins
ER9.5/ER11/ER14.5 SMD series bobbins
EI22 to EI50 series bobbins
Toriod cores case and base holder series bobbins.
ET series bobbins
UU.8/UU0.5/UU15.7 series bobbins
UT20/ET20/ET24/ET28/ET35 series bobbins
LAN transformers header & covers series bobbins
ADSL transformers bobbin serises
Power inductor base series
ETD/EF/RM/UU/ER series clamps
Welcome OEM/ODM transformers.

Company Introduction

HANG TUNGELECTRONIC LTD was founded in 1987 in Shijie Town of Dongguan City which is the famous manufacturing city of China. We are specialized in designing and manufacturing a wide range of electronic transformers, high frequency transformers, low frequency transformers, AC/DC adapters, switching power supplies, inductors, choke coils, shielded wires and EMI filters.

Our products are widely applied in electronic, electric and computer products like electronic flashlights, stage stroboscopes, energy-saving lamps, LED lights, EL cold lamps, alert lights, navigating lights, medical facilities, computer equipment, wireless electronics, mobile communications, smart home appliances, Bluetooth speakers, tablet PCs, air conditioners, water drinking machines, televisions, electric fans and power chargers.

Now, our company covers over 6,000 square meters and is staffed with 200 to 300 employees. Furthermore, we own a series of equipment for modern production and product testing, and a number of high-quality technology management personnel. Our company consists of development, engineering, quality, sales and other departments, all with advanced digital management system and strict quality control, to ensure the products we make have stable and reliable quality. Moreover, we strictly implement ISO 9002 standards and have got the UL certificate.

Our products are welcomed by customers from Malaysia, Japan, Taiwan, South Korea, the US and Germany. We have consistently adhered to quality, delivery, reasonable price and service to satisfy customers' requirements.

We are looking forward to your corporation. Contact or visit us today.