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Horizontal Pin Type ETD34 High Frequency Flyback Transformer For Solar Inverter UPS EV Chargers

Place of Origin: China
Brand Name: Chipsen
Certification: ISO9001:2015, ISO14001:2015, IATF16949, UL/cUL, ROHS, REACH, CQC
Model Number: ETD34
Minimum Order Quantity: 1000pcs
Price: US$0.47-0.63
Packaging Details: Carton 1: 25.5 X 21.5 X 21cm. Carton 2: 43.5 x 24.5 x 21 cm
Delivery Time: 3~4 Weeks
Payment Terms: T/T
Supply Ability: 10,000,000pcs/month
Specifications
Highlight Features

ETD34 High Frequency Flyback Transformer

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Pin Type High Frequency Flyback Transformer

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Horizontal high frequency power transformer

Product Name:
PCB Mounted High Frequency Power Transformers
Supplier Type:
Original Manufacturer
Input/Output Voltage:
Customised
Installation Posture:
Horizontal/Vertical Type/Customized
Material:
Copper, Ferrite Core, Bobbin, Plastic Tapes
Core Type:
ETD34 Ferrite Core (PC40 / PC44 / DMR Series Optional)
Quality Inspection:
100% Tested Before Package
R&D Cost:
Free Design Service
UL File No.:
E332338
Turns Ratio/inductance:
Customized
Compliance:
UL Recognized Insulation System (E332338), RoHS, REACH
Process:
Vacuum Varnish Impregnation
Product Description
Horizontal Pin Type ETD34 High Frequency Transformer For Solar Inverter UPS EV Chargers
Product Overview

ETD34 Horizontal Pin Type High Frequency Transformer

The ETD34 high frequency transformer is a horizontal pin-type (through-hole / PCB mounting) switching power transformer built on an ETD34 ferrite core. Designed for continuous operation in solar inverters, UPS systems, EV chargers and industrial SMPS, it delivers stable power conversion, low temperature rise and reliable insulation under long-duty and high-ambient conditions. Windings, turns ratio, inductance, pin-out and creepage design are fully customizable to your circuit schematic.

Key Features
  • ETD34 ferrite core -- large window area and good thermal path, suitable for medium-power converters at typical switching frequencies of 20 kHz-150 kHz.
  • Horizontal pin type -- low profile after mounting, saving vertical PCB space; pin count and pitch made to drawing.
  • Low loss & low temperature rise -- core material and wire gauge matched to your frequency and current for higher conversion efficiency.
  • Reinforced insulation -- margin tape / triple insulated wire (TIW) options to meet primary-secondary isolation and creepage requirements.
  • Vacuum varnish impregnation -- reduces audible noise, improves moisture resistance and mechanical strength.
  • UL recognized insulation system -- UL file reference E332338; RoHS & REACH compliant materials.
  • 100% tested -- inductance, turns ratio, DCR, leakage inductance and Hi-Pot tested before shipment.
Technical Specifications
Item Parameter
Model ETD34-391-13623 (customized models available)
Core type / size ETD34 ferrite core (PC40 / PC44 / DMR series optional)
Bobbin Horizontal type, phenolic / PBT, UL 94V-0
Mounting Horizontal pin, through-hole PCB mounting
Pin configuration Customized (pin count, pitch and pin-out to customer drawing)
Operating frequency 20 kHz - 150 kHz (design dependent)
Turns ratio / inductance Customized to customer specification
Inductance tolerance ±10% (tighter tolerance available on request)
Wire Enameled copper wire / Litz wire / TIW, 100% copper
Dielectric strength Primary-secondary 3000 VAC / 1 min (customizable)
Insulation class Class B / F / H optional
Operating temperature -40 °C to +125 °C
Process Vacuum varnish impregnation
Compliance UL recognized insulation system (E332338), RoHS, REACH
Note: electrical parameters above are typical reference values. Final specifications are confirmed according to your drawing or circuit requirements.
Applications
  • Solar / PV inverters and energy storage systems (ESS)
  • Uninterruptible power supplies (UPS)
  • EV chargers and on-board chargers (OBC)
  • Industrial switching power supplies, LED drivers, servo and communication power
  • Home appliance and medical power boards
OEM / ODM Customization

Send us your drawing, schematic or a sample, and our engineering team will propose the core material, wire type, winding structure and safety spacing that best fit your efficiency, temperature-rise and cost targets. Customizable items include: core size and material, turns ratio, inductance and tolerance, leakage inductance, pin-out, insulation class, lead length and marking/logo.

Quality Control
  • Incoming inspection of cores, bobbins, wire and tape
  • In-process inspection at winding, soldering and assembly stations
  • 100% electrical test: inductance, turns ratio, DCR, leakage inductance, Hi-Pot
  • Temperature-rise and burn-in verification for sample and pilot runs
  • Full traceability by production lot
Packaging & Delivery

Packing: anti-static bag / blister tray → inner carton → export carton (customized packing accepted)

Sample lead time: 7-10 working days after specification confirmation

Mass production lead time: 15-25 days, subject to quantity

Trade terms: EXW / FOB / CIF

Shipping: by express, air or sea

Frequently Asked Questions
Q1: Can you make the transformer according to my drawing?
Yes. OEM/ODM is our main business. Send your drawing or schematic and we will reply with a proposal and quotation.
Q2: Do you provide samples?
Yes, samples are available for evaluation; sample cost can be refunded or deducted against a mass-production order.
Q3: What is the MOQ?
Flexible MOQ for trial orders; please contact us with your target quantity.
Q4: Do the materials meet safety and environmental requirements?
We use a UL recognized insulation system and RoHS/REACH compliant materials; relevant documents can be provided on request.
Q5: How do you control quality?
100% electrical testing plus Hi-Pot test before packing, with lot traceability.
Contact Us

Tell us your input/output voltage, power, switching frequency, topology (flyback / forward / LLC / push-pull) and target dimensions, and we will recommend a suitable ETD34 solution and quote within 24 hours.

ETD34 High Frequency Transformer product photo showing detailed construction ETD34 High Frequency Transformer side view and pin configuration
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