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Dongguan Chipsen Electronics Technology Co., Ltd.

  • China,Dongguan ,Guangdong
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China EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount
China EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount

  1. China EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount
  2. China EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount
  3. China EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount

EP7 Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD PCB Mount

  1. MOQ: 1000
  2. Price: US$0.15-1.5
  3. Get Latest Price
Frequency 1KHz -1MHz
Delivery Time 3-4 Weeks
Input Voltage 110v/200v/220v/240v/360v/480v
Mounting type SMD/ PCB
Payment Terms T/T
Operating temperature -40 ~+200
Output Voltage 12V 24V 48V 60V 120V 240V
Supply Ability 10000000/Month
Application Communication Prducts, Medical Instruments, Home appliances, AI
Core material PC44/PC95 Ferrite core
Winding wire Copper wire
Product name EP7 Flyback transformer
Packaging Details Tape-and-reel packaging
Power 0.5W-5W
Model Number EP7
Certification UL/CUL/ISO9001/ISO14001/RoHS/Reach/IATF16949
Place of Origin China
Brand Name Chipsen

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  1. Product Details
  2. Company Details

Product Specification

Frequency 1KHz -1MHz Delivery Time 3-4 Weeks
Input Voltage 110v/200v/220v/240v/360v/480v Mounting type SMD/ PCB
Payment Terms T/T Operating temperature -40 ~+200
Output Voltage 12V 24V 48V 60V 120V 240V Supply Ability 10000000/Month
Application Communication Prducts, Medical Instruments, Home appliances, AI Core material PC44/PC95 Ferrite core
Winding wire Copper wire Product name EP7 Flyback transformer
Packaging Details Tape-and-reel packaging Power 0.5W-5W
Model Number EP7 Certification UL/CUL/ISO9001/ISO14001/RoHS/Reach/IATF16949
Place of Origin China Brand Name Chipsen
High Light SMPS pulse transformerMini pulse transformerPCB Mount high voltage pulse transformer
High Frequency EP7 Ferrite Core Transformer Mini SMPS Pulse Transformer Excellent EMI Shielding Custom SMD/PCB Mount
Product Introduction

The EP7 Series High-Frequency Transformer is a high-precision magnetic component designed around the specialized EP7 ferrite core. Featuring a unique cubical geometry with a cylindrical center limb, this transformer is engineered to provide a robust solution for power and signal management in modern, high-density electronic environments. Its "capsule-like" architecture allows it to deliver superior performance in a miniature form factor, making it an essential component for high-end electronic applications.

Parameter Typical Value / Spec
Core Type EP7 (Ferrite Core)
Mounting Type Through-hole / SMD
Pin Count 6-Pin / 8-Pin (Customizable)
Dimensions Approx. 9.5mm x 6.5mm x 7.8mm (Excl. pins)
Power Output 1.0W - 5.0W (Max)
Frequency 50KHz - 1MHz
Input Voltage 5V / 12V / 24V / 48V (DC-DC Typical)
Hi-Pot 1.5KV - 3.0KV AC / 1min
Insulation Resistance >=100MΩ (at 500V DC)
Leakage Inductance < 1% - 3% (Typical)
Core Material PC40 / PC44 / PC95 Mn-Zn Ferrite
Winding Wire 2UEW / 3UEW High Temp Enameled Copper Wire
Insulation Class Class B (130°C) / Class F (155°C)
Ae (Effective Area) 10.3 mm²
Operating Temp -40°C to +125°C (Incl. self-heating)
Storage Temp -25°C to +85°C
Compliance RoHS, REACH, UL Recognized (Optional)
Product Features
  • Optimized Geometry: The cubical shape provides an excellent volume-to-surface-area ratio, maximizing magnetic efficiency within a minimal footprint.
  • High-Frequency Range: Optimized for high-frequency operation, typically ranging from 100kHz up to 1MHz, supporting modern high-speed switching topologies.
  • Precision Winding: The round center post facilitates uniform winding distribution, reducing mechanical stress on the copper wire and ensuring highly consistent electrical parameters.
  • Versatile Mounting: Available in both Surface Mount (SMD) and Through-Hole (THT) configurations to suit various PCB assembly processes.
  • Material Quality: Constructed with premium PC40/PC44/PC95 ferrite materials, offering low core loss and high magnetic permeability.
Product Applications
  • Telecommunications: A standard choice for xDSL modems, ISDN routers, and wideband signal transmission due to its excellent signal integrity.
  • Signal Isolation: Widely used as a pulse transformer or gate drive transformer (GDT) for driving MOSFETs and IGBTs in power converters.
  • Compact Power Supplies: Ideal for low-power DC-DC converters (typically 1W to 5W) in smart home devices, sensors, and IoT modules.
  • Medical & Precision Instruments: Used in sensitive analog circuits where low noise and high reliability are critical requirements.
Product Advantages
  • Superior EMI Shielding: The unique self-shielding design effectively encloses the windings, significantly minimizing magnetic leakage and electromagnetic interference (EMI) compared to traditional E-core transformers.
  • Extreme Space Efficiency: Its vertical-oriented cubical structure occupies minimal PCB real estate, allowing for higher component density on the board.
  • Excellent Thermal Stability: The high-quality insulation and core material ensure stable performance across a broad temperature range (typically -40°C to +125°C).
  • High Consistency: The standardized mechanical structure ensures that electrical parameters like leakage inductance and stray capacitance remain consistent across large production batches, reducing the need for circuit recalibration.
Company Strengths

Chipsen Electronics Technology Co., Ltd., established in 2000, is a specialized manufacturer of high frequency transformer, low frequency transformer, toroidal inductor, SMD power inductor, super high current inductor, choke coil and switch. Chipsen has got a good reputation in domestic and oversea markets which include North & South America, Europe and Southeast Asia.

Chipsen possesses a professional management team, as an ISO9001, IS014001 & IATF16949 audited company, which always commits to producing environmental protection and qualified products. Our products are certified by UL Class B/Class F/Class H, CQC and RoHS, and obtained 21 patents. These achievements mainly come from our strong R&D team, providing various solutions for temperature decreasing, noise cancellation and coupled radiation conductivity. Our products widely used in various fields of new energy, PV, UPS, Robotics, smart home, security systems, health care and communication.

Vision: To Be Global Transformer Brand Supplier

Mission: Create Values for Customers and Society, Grow with Customers and Staffs

Values: Customer First, Team Cooperation, Embrace Changes, Integrity, Creative & Happy

Technical FAQ for EP7 Transformers
Q1: How does the unique cubical geometry of the EP7 core contribute to superior EMI/EMC performance compared to traditional E-cores?
A: The EP7 core features a specialized cubical "shell-like" structure that almost entirely encloses the internal bobbin and windings. Unlike open E-cores or EF-cores, the EP7's side plates act as a natural magnetic shield, significantly containing the magnetic flux within the transformer. This minimizes Magnetic Leakage and Radiated EMI (Electromagnetic Interference). For engineers designing high-density PCBs—especially in noise-sensitive applications like medical sensors or xDSL modems—this self-shielding characteristic reduces cross-talk between components and helps the final product pass stringent EMC certifications (such as CISPR or FCC) without requiring additional external shielding.
EP7 Transformer technical diagram showing cubical core structure and winding configuration

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2007

  • Total Annual:

    28820000-29820000

  • Employee Number:

    400~450

  • Ecer Certification:

    Verified Supplier

Chipsen Electronics - Supplier to Fortune Global 500 Companies Magnetic Components Engineered for Performance & Reliability Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches. ... Chipsen Electronics - Supplier to Fortune Global 500 Companies Magnetic Components Engineered for Performance & Reliability Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches. ...

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Get in touch with us

  • Reach Us
  • Dongguan Chipsen Electronics Technology Co., Ltd.
  • No. 234, Changhuang Road, Changping Town, 523586, Dongguan, Guangdong, China
  • https://www.chipsen.net/

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