TP18 Series High Frequency 30W Planar Transformer Max Thickness 7.4mm for DC-DC Converters

The TP18 series high-frequency 30W planar transformer is designed for DC-DC converters and switching power supply applications. Power range is 15-30W, with a maximum thickness of only 7.4mm. The product features a low-profile planar structure, offering ultra-low leakage inductance, minimal EMI, and high creepage distance. It is compatible with all SMPS topologies. Multiple mounting and termination options are available. The dedicated heat dissipation clip design ensures excellent thermal management performance. It is widely used in DC-DC converters, switching power supplies, and various high-frequency power conversion applications.

• Very low Leakage Inductance (less than 0.2% for un-gapped cores).
• Cost effective and competitive prices.
• Minimum Electromagnetic Interference (EMI).
• High Creepage and Clearance distances between primary and
• Applicable to all SMPS topologies.
• Various mounting and terminals options (Horizontal, Vertical, Through-holes, SMT, Pins, Flying-cables and more).
• Specially designed heat-dissipating Clasps.
• Low-profile planar transformer
• High-power planar transformer
• High-frequency planar transformer
• PCB planar transformer
• Planar switching power transformer
• Off the shelf SMT planar transformer

• DC-DC converters
• Switching power supplies (SMPS)
• Distributed power systems
• Communication equipment power supplies
• Industrial control power supplies
• Automotive electronics
• Medical equipment power supplies
• High-density power modules

• The inductance is measured between Pin (1-2) at 100 kHz, 100 mVrms
• The leakage inductance is measured in primary winding Pin(1-2) with secondary winding shorted.
• All specifications typical at TA=25℃±5℃.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks; custom products will be confirmed separately.

Q: What are the advantages of the 7.4mm maximum thickness for space-constrained applications?

A: The 7.4mm low-profile design significantly saves PCB vertical space. It is suitable for height-constrained compact power supply designs, meeting the miniaturisation and high-density integration requirements of modern electronic devices.