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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

Name: Custom ER28 High Frequency Transformer for DCDC BuckBoost Converter
Brand: Chipsen
Price: 0.88 USD

Quality Custom ER28 High Frequency Transformer for DC-DC Buck-Boost Converter for sale

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

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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.

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