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Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Specifications
Output voltage :
5V - 48V DC
Model Number :
ER28
Operating Frequency :
20kHz - 500kHz
MOQ :
1000 pcs
Delivery Time :
15-30 working days
Packaging Details :
Carton
Payment Terms :
T/T
Power rating :
10W - 500W
Brand Name :
Chipsen
Core Type :
ER28 (Ferrite Core)
Place of Origin :
China
Dielectric Strength :
3000VAC / 1min
Price :
$0.88-$1.59
Supply Ability :
3K-50K pcs / Month
Operating temperature :
-40°C to +125°C
Certification :
UL/ISO9001/ISO14001/RoHS/Reach
Description

1. Product Introduction

The Chipsen ER28 series is a high-performance High Frequency Transformer engineered for demanding industrial power conversion. Featuring a specialized ER magnetic core structure, it provides a perfect balance between high power density and compact footprint. Designed to support high-frequency switching, this transformer is ideal for DC-DC converters where efficiency and EMI suppression are critical for system reliability.

Technical Specifications

Parameter Item Specification Details
Core Type ER28 (Ferrite Core)
Keywords High Frequency Transformer
Operating Frequency 20kHz - 500kHz
Power Rating Up to 150W (Topology Dependent)
Input Voltage Customizable (AC/DC Range)
Insulation Class Class B (130°C) / Class F (155°C)
Safety Certification UL (E332338), CE, RoHS Compliant
Efficiency >95% at Rated Load
Dielectric Strength 3000VAC / 1min (Primary to Secondary)
Storage Temperature -25°C to +85°C

2. Product Features

  • Optimized EMI Performance: Specialized winding techniques to significantly cut EMI noise in your circuits.
  • High Power Density: Compact ER28 design delivers maximum power without sacrificing valuable PCB space.
  • Low Leakage Inductance: Enhances switching efficiency and reduces heat dissipation in power stages.
  • Industrial Grade Insulation: UL-recognized materials ensure long-term stability in harsh industrial environments.

3. Product Application

Our ER28 High Frequency Transformers are widely utilized in high-reliability industrial sectors:

  • Industrial Inverters: Power stage for DC-AC conversion in automation systems.
  • Photovoltaic (PV) Inverters: Energy management for solar power arrays.
  • AI Servers & Data Centers: High-efficiency power modules for high-speed computing.
  • Telecommunication: Base station power supplies and networking equipment.
  • Medical Equipment: Isolated power conversion for sensitive diagnostic devices.
  • EV Chargers: On-board charging (OBC) and DC fast-charging stations.

4. Why Choose Chipsen?

Product Advantages

  • Customized Design (ODM/OEM): Tailored electrical parameters and pin configurations to match your specific Buck-Boost topology.
  • Energy Efficiency: Ultra-low core loss ferrite materials to maximize your system's energy output.
  • Certified Reliability: Fully compliant with UL, CE, and RoHS, passing strict vibration and thermal shock tests.

Company Advantages

  • 26 Years Expertise: Founded in 2000, specialized in mid-to-high-end industrial magnetic components.
  • Massive Production Scale: 10,000㎡ self-owned factory with 8 automated production lines.
  • North American Market Leader: 50% of our exports go to North America, serving top-tier industrial brands.
  • Rapid Engineering Support: Direct communication with senior engineers for quick technical evaluation.

5. Frequently Asked Questions (FAQ)

Q1: Can you customize the turns ratio and pin layout for ER28?
A: Yes, we provide full ODM/OEM services. You can send your specification, and our engineers will design the winding and footprint to fit your PCB.
Q2: What is the typical lead time for bulk orders?
A: For bulk orders of 1,000 PCS or more, the lead time is usually 3-4 weeks, depending on component availability.
Q3: What payment methods do you support for international orders?
A: We support T/T (Telegraphic Transfer), PayPal, and Western Union for your convenience.
Q4: Are your transformers UL certified?
A: Yes, our products carry the UL mark (E332338) and comply with CE and RoHS standards for global market access.
Q5: What is your Minimum Order Quantity (MOQ)?
A: Our standard MOQ for ER series transformers is 1,000 PCS.
Q6: Can you provide samples for testing before mass production?
A: Absolutely. We encourage sample testing to verify electrical performance in your specific application.
Q7: How do you handle EMI issues in the design?
A: We use sandwich winding methods and specialized shielding to minimize parasitic capacitance and cut EMI noise.
Q8: Is this transformer suitable for AI server power supplies?
A: Yes, the ER28 is highly recommended for high-efficiency power modules in AI servers and data center infrastructure.
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
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Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter

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Product Detail
Output voltage :
5V - 48V DC
Model Number :
ER28
Operating Frequency :
20kHz - 500kHz
MOQ :
1000 pcs
Delivery Time :
15-30 working days
Packaging Details :
Carton
Contact Supplier
video
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter
Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter

Dongguan Chipsen Electronics Technology Co., Ltd.

Verified Supplier
1 Years
guangdong, dongguan
Since 2007
Business Type :
Manufacturer
Main Products :
High Frequency Flyback Transformer, High Frequency SMPS Transformer, High Frequency Pulse Transformer
Total Annual :
28820000-29820000
Employee Number :
400~450
Certification Level :
Verified Supplier
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