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Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Specifications
Model Number :
EI33
Working Frequency :
50Hz / 60Hz (50Hz - 400Hz Customizable)
MOQ :
100PCS
Delivery Time :
15-22 wark days
Bobbin Material & Flammability :
PBT / Phenolic (UL94 V-0 Rated)
Payment Terms :
T/T
Audible Noise Level :
< 30 dB @ 1m (Full Load)
Price :
$2 - 5/ Piece,1000-10000pcs
Potting / Encapsulation Type :
Epoxy Resin Encapsulated / Open Framing / Vacuum Impregnated
Certification :
UL/cUL Class B/F/H, VDE, CQC
Efficiency & No-load Loss :
Efficiency: ≥ 85% No-load Power: < 0.5W
Supply Ability :
5000 pcs per day
Terminal Lead & Pin Finish :
Tinned Copper Pin (100% Matte Tin plating, Solderable)
Brand Name :
CHIPSEN
Pin Pitch & PCB Footprint :
Pitch: 5.0mm / 7.5mm / Custom (DIP / Through-Hole Mount)
Packaging Details :
Small transformers: blister tray packaging + export cartons; Large transformers packed on wooden pallets. Custom packaging available upon request.
Place of Origin :
China
Winding Structure & Shielding :
Split Bobbin / Faraday Shielding (Copper Foil Shield)
Description
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 EI Series Laminated Core Power Transformer
Product Overview

The CHIPSEN EI33 Pin-Type Low Frequency Transformer delivers stable voltage transformation and reliable insulation for through-hole PCB assembly. Engineered with premium silicon steel laminations and durable copper windings, it ensures low power loss, low heat generation, and long-term operating efficiency.

Specification Item Standard Specifications Industry / Application Needs
Model / Core Size EI33 Pin-Type / DIP Industrial controls, home appliances, audio equipment, power modules
Input Voltage (I/P) 120V AC / 230V AC, 50/60Hz North America (120V/60Hz), Europe/Asia (230V/50Hz), Global dual voltage (115V/230V)
Output Voltage (O/P) Single / Dual outputs (e.g., 9V, 11.5V, 12V, 24V AC) Small home appliance standby (9V-12V), Industrial relays (24V), Audio preamps (12V-0-12V)
Output Current / Power 0.05A - 0.35A (approx. 1VA - 5VA) Low-power standby control boards, meters, instrumentation
Pin Configuration DIP / Through-Hole (e.g., Pin 2-6 Input, Pin 7-8 & 11-12 Output) PCB layout compatibility for direct wave-soldering processes
Insulation Class Class B (130°C) / Class F (155°C) HVAC controllers, outdoor power equipment, high-temperature machinery
Dielectric Strength (Hi-Pot) 3.75kV AC / 4.0kV AC (50Hz, 1 min) High-safety medical devices, industrial automation, commercial appliances
Product Features
  • PCB Pin-Mounting Design: Sturdy pin structure for easy through-hole insertion and reliable automated soldering.
  • Low Loss & Low Temperature Rise: High-grade magnetic core minimizes core loss and ensures efficient energy conversion.
  • Safety Certified: Designed and manufactured to comply with international safety standards, featuring UL-recognized insulation class options (Class B/F/H).
  • Multi-Output Capability: Configurable dual/multi-winding design to meet flexible circuit voltage requirements.
Product Applications
  • Home Appliances: Washing machines, air conditioners, microwave control boards.
  • Industrial & Power Supplies: Control boards, power distribution units, auxiliary transformers.
  • Smart Security & Audio Systems: Fire alarm systems, intercoms, audio power amplifiers.
Our Advantages
Product Advantages
  • Certified Quality: Certified to ISO9001, ISO14001, and IATF16949 standards. Products hold UL/cUL, VDE, CB, CQC, CE, RoHS, and REACH certifications.
  • High Reliability: 100% full-parameter testing before shipment ensures consistent electrical performance and long service life.
  • Customization Ready: Tailored voltage ratios, pinouts, and power ratings to match your exact PCB layout.
Company Advantages
  • 3 Production Bases: Scale production across Dongguan, Nanchang, and Vietnam ensures cost-efficiency and supply chain flexibility.
  • Proven Track Record: Over 15 years of industry experience with 30+ patents and robust automated production capabilities.
  • Global Trust: Trusted supplier catering to clients across North America, the EU, Southeast Asia, and China.
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
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Product Detail
Model Number :
EI33
Working Frequency :
50Hz / 60Hz (50Hz - 400Hz Customizable)
MOQ :
100PCS
Delivery Time :
15-22 wark days
Bobbin Material & Flammability :
PBT / Phenolic (UL94 V-0 Rated)
Payment Terms :
T/T
Contact Supplier
video
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power
Custom EI33 Low Frequency PCB Mount Transformer Heavy Duty Pin Type Power

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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