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The CHIPSEN ETD29 series is a high-performance High-Frequency Switching Transformer designed for modern SMPS (Switching Mode Power Supplies) and DC-DC converters. Built with a high-permeability manganese-zinc ferrite core and multi-strand oxygen-free copper wire, the ETD29-401-12576 offers exceptional power density and thermal stability. Its horizontal PCB-mount architecture and robust insulation make it an ideal choice for compact, high-efficiency power modules requiring strict EMI control and UL-certified reliability.
2. PRODUCT FEATURES
Technical Parameter Table
Item
Specifications
Product Name
High Frequency Switching Transformer
Model Number
ETD29-401-12576
Brand Name
CHIPSEN
Core Type
ETD29 (Ferrite Core)
Switching Frequency
20kHz - 500kHz
Power Rating
50W - 150W (Typical, application dependent)
Dielectric Strength
3000VAC / 5mA / 60s (Primary to Secondary)
Insulation Resistance
≥100MΩ at 500VDC
Safety Compliance
UL (E332338), CE, RoHS
Operating Temperature
-40°C to +125°C
Storage Temperature
-20°C to +85°C
Mounting Type
Through-Hole PCB Mount (Horizontal)
Key Features
ETD Core Geometry: The Economic Transformer Design (ETD) core provides a balanced ratio between core volume, winding area, and surface cooling, maximizing power throughput.
Low Power Loss: Optimized ferrite materials reduce eddy current and hysteresis losses, ensuring high conversion efficiency even at high frequencies.
Excellent Shielding: The specialized bobbin and winding structure minimize leakage inductance and electromagnetic interference (EMI).
High Insulation Reliability: Triple-insulated wires and vacuum impregnation options are available to meet stringent safety isolation standards.
Durable Construction: Features a flame-retardant bobbin (UL 94V-0) and precision-soldered pins for long-term mechanical stability.
3. PRODUCT APPLICATIONS
Industrial Power Supplies: DIN rail power units, industrial control boards, and robotics.
Telecommunications: DC-DC converters for base stations and networking hardware.
Renewable Energy: Solar inverters, EV charging piles, and battery management systems (BMS).
Consumer Electronics: High-power adapters for laptops, gaming consoles, and LED drivers.
Medical Equipment: Isolated power modules for patient monitoring and diagnostic devices.
4. ADVANTAGES
Company Advantages
26-Year Industry Leader: Chipsen has been a specialized manufacturer of magnetic components since 2000, ensuring deep technical expertise.
Massive Annual Capacity: With 8 automated production lines and a 10,000 sqm facility, we produce over 2.4 billion transformers annually.
Strict Quality Control: ISO 9001 and ISO 14001 certified management, with 20+ dedicated QC professionals overseeing every production stage.
Engineering Excellence: Our 20-person R&D team provides expert ODM/OEM support to optimize your circuit designs.
Product Advantages
UL Certified Reliability: Our products carry the E332338 UL file mark, meeting global safety standards for exported equipment.
High Efficiency Design: Engineered to reduce thermal buildup, extending the lifespan of both the transformer and the host device.
Customizable Topologies: We support various circuit topologies including Flyback, Forward, Half-bridge, and Full-bridge configurations.
Global Provenance: Proudly serving top-tier clients such as Midea and Federal Signal with a $42 Million annual export volume.
5. FAQ
Q1: What is the maximum power frequency the ETD29 can handle?
A1: The ETD29 is optimized for high-frequency operation, typically ranging from 20kHz up to 500kHz depending on the core material selected.
Q2: Can you provide customized pinouts for the bobbin?
A2: Yes, we offer various bobbin styles (Horizontal/Vertical) and can customize the pin configurations to match your PCB layout.
Q3: Does Chipsen provide technical design assistance?
A3: Absolutely. Our engineering team, with over 26 years of experience, can assist in calculating turns, wire gauge, and core selection based on your power requirements.
Q4: What payment methods do you accept?
A4: We support T/T (Bank Transfer), PayPal, and Western Union to ensure a smooth and secure transaction process.
Q5: What is the standard MOQ for the ETD29 series?
A5: The typical MOQ is 1,000 pieces. However, we support smaller quantities for initial prototyping and pilot production.
Q6: Are the materials used in the transformer RoHS compliant?
A6: Yes, all raw materials, including cores, bobbins, and wires, are fully RoHS and REACH compliant.
Q7: How do you ensure product quality during mass production?
A7: We conduct 100% electrical testing, including turns ratio, inductance, leakage inductance, and Hi-pot testing, to guarantee zero-defect delivery.
Q8: Do you support DDP shipping terms?
A8: Yes, we provide multiple shipping options including DDP, DDU, and FOB to simplify logistics for our international customers.
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.
...
