Dongguan Chipsen Electronics Technology Co., Ltd.
| Power Rating | 300W - 600W (Continuous) |
| Delivery Time | 7-22 wark days |
| Core Size | ETD34 |
| Operating Frequency | 100 kHz (Resonant: 80-150 kHz) |
| Packaging Details | Small transformers: blister tray packaging + export cartons; Large transformers packed on wooden pallets. Custom packaging available upon request. |
| Payment Terms | T/T |
| Magnetizing Inductance | 738 µH ± 10% |
| Dielectric Strength | 3,000V AC (Pri to Sec) |
| Pin Configuration | 14-Pin Through Hole (DIP) |
| Supply Ability | 5000 pcs per day |
| Model Number | ETD34 |
| Certification | UL/cUL Class B/F/H, VDE, CQC |
| Brand Name | CHIPSEN |
| Place of Origin | China |
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Product Specification
| Power Rating | 300W - 600W (Continuous) | Delivery Time | 7-22 wark days |
| Core Size | ETD34 | Operating Frequency | 100 kHz (Resonant: 80-150 kHz) |
| Packaging Details | Small transformers: blister tray packaging + export cartons; Large transformers packed on wooden pallets. Custom packaging available upon request. | Payment Terms | T/T |
| Magnetizing Inductance | 738 µH ± 10% | Dielectric Strength | 3,000V AC (Pri to Sec) |
| Pin Configuration | 14-Pin Through Hole (DIP) | Supply Ability | 5000 pcs per day |
| Model Number | ETD34 | Certification | UL/cUL Class B/F/H, VDE, CQC |
| Brand Name | CHIPSEN | Place of Origin | China |
| High Light | 738µH LLC Resonant Transformer ，97.5% Efficiency High Frequency Power Transformer ，ETD34 LLC Transformer | ||
The ETD34 738 µH High-Power LLC Transformer is engineered for high-efficiency, high-frequency power conversion in demanding electronic systems. Designed specifically for LLC resonant topology, it delivers exceptional power density, low electromagnetic interference (EMI), and stable electrical isolation. Whether you are developing cutting-edge industrial automation, advanced robotics, drones, or new energy platforms, this transformer provides the high reliability and thermal performance your critical applications require.
| Parameter Category | Technical Parameter | Typical Standard Spec | Customizable Range (OEM/ODM) | Customer Concern / Purpose | Impact on Design | Testing Condition |
|---|---|---|---|---|---|---|
| Electrical | Magnetizing Inductance (Lm) | 738 µH ± 10% | 200 µH – 1.5 mH (Customizable) | Defines LLC resonant frequency & ZVS range | Core gap adjustment | 100 kHz, 1.0V |
| Electrical | Resonant Inductance / Leakage (Lr) | 100 µH – 150 µH (or integrated) | 10 µH – 250 µH | Eliminates external resonant inductor | Winding structure & spacing | 100 kHz, 1.0V (Short Sec) |
| Electrical | Operating Frequency (f) | 100 kHz (Resonant: 80–150 kHz) | 50 kHz – 300 kHz | Determines size, efficiency & switching loss | Ferrite material selection | Operating range |
| Electrical | Power Rating (Pout) | 300W – 600W (Continuous) | 100W – 800W Max | Matches system load capacity requirements | Thermal management & wire gauge | Ta = 40°C, Forced air/Convection |
| Electrical | Input Voltage (Vin) | 380V – 420V DC (PFC Output) | 100V – 800V DC | System bus voltage compatibility | Primary turns & insulation rating | PFC stage compatibility |
| Electrical | Output Voltage (Vout) | 24V / 48V DC (Typical) | 5V – 120V DC (Single/Multi) | Matches downstream load / battery pack | Secondary turns ratio & tapping | Full load condition |
| Electrical | Output Current (Iout) | 10A – 25A | Up to 50A | Conductor sizing & thermal dissipation | Litz wire / Triple Insulated Wire | Rated power output |
| Electrical | Turn Ratio (Np : Ns) | 15 : 2 : 2 (Example) | Customized per Vin/Vout | Sets voltage gain in LLC network | Winding layout & coupling | Calculated |
| Isolation & Safety | Hi-Pot / Dielectric Strength | 3,000V AC (Pri to Sec) | 1,500V AC – 4,000V AC | Safety certification compliance (UL/CE) | Margin tape & insulation class | 50/60Hz, 60s, <5mA leakage |
| Isolation & Safety | Insulation Class | Class B (130°C) / Class F (155°C) | Class B, F, H (180°C) | Thermal limit and operating lifetime | Wire insulation & triple wire | Thermal limit |
| Mechanical & Core | Core Size & Type | ETD34 (Ferroxcube/TDG/TDK) | ETD29 / ETD34 / ETD39 / ETD44 | Physical footprint and power capability | Bobbin & core selection | Physical dimension |
| Mechanical & Core | Pin Configuration / Mounting | 14-Pin Through Hole (DIP) | Custom Pinout / Flying Leads | PCB layout compatibility & automated assembly | Bobbin design | PCB mounting |
| Thermal | Operating Temperature Range | -40°C to +125°C | -40°C to +155°C | Reliability in extreme environments | Varnishing & potting compound | Ambient + Self-heating |
Company Details
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. ...
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