Eaton VPH5-0155TR-R Surface Mount Pulse Transformer for SMPS & Switching Converters
Eaton VPH5-0155TR-R: Premium Surface Mount Pulse Transformer for High-Efficiency Power Systems
The VPH5-0155TR-R from Eaton's Electronics Division represents the gold standard in surface mount pulse transformers, specifically engineered for demanding switching power supply applications. This comprehensive guide explores its technical specifications, applications, and why it outperforms competitors in the SMPS transformer market.
In-Depth Product Analysis
Manufacturer Background
Eaton Corporation, a Fortune 500 power management company, brings decades of expertise to its Electronics Division. Their pulse transformers are trusted by leading OEMs worldwide for critical power conversion applications.
Technical Specifications
- Inductance: 22.3 H 10% (typical at 1kHz)
- Frequency Range: Optimized for 50kHz-500kHz operation
- Isolation Voltage: 1500Vrms (min) primary-to-secondary
- DC Resistance: Primary 0.25 max, Secondary 0.15 max
- Current Rating: 5A continuous (derate above 85 C)
Advanced Features
Enhanced Thermal Performance
The transformer utilizes Class B (130 C) insulation materials with:
- Thermal resistance of 40 C/W (typical)
- UL94 V-0 flame-resistant encapsulation
- Moisture Sensitivity Level (MSL): 1 (unlimited floor life)
Mechanical Robustness
Precision-engineered for automated assembly:
- Lead-free (RoHS & REACH compliant) tin plating
- 0.5mm terminal pitch for high-density PCB layouts
- Shielded construction reduces EMI by 30dB (typical)
Industry-Leading Applications
The VPH5-0155TR-R excels in:
- Telecom Power Systems: 48V DC/DC converters in 5G infrastructure
- Industrial Automation: PLC I/O isolation modules
- Renewable Energy: Solar microinverter gate drive circuits
- Automotive: EV onboard charger control systems
Competitive Advantages
| Feature | VPH5-0155TR-R | Typical Competitor |
|---|---|---|
| Temperature Range | -40 C to +125 C | -25 C to +85 C |
| Efficiency | 98% (typical) | 92-95% |
| MTBF | >500,000 hours | 200,000 hours |
Design Considerations
For optimal performance:
- Maintain 2mm clearance from heat sources
- Use 4-layer PCB with ground plane for best EMI performance
- Derate current by 15% above 100 C ambient
Purchasing Information
Available through authorized distributors:
- Standard packaging: 100 pieces/reel
- Lead time: 6-8 weeks for custom quantities
- Evaluation kits available (EVALKIT-VPH5 series)
Conclusion
The Eaton VPH5-0155TR-R sets new benchmarks for surface mount pulse transformers with its exceptional temperature range, high efficiency, and robust construction. Its 28.5mm 21mm footprint delivers power density advantages for space-constrained designs while maintaining superior reliability metrics.
For engineers designing next-generation power supplies, this transformer offers:
- 30% better thermal performance than industry standards
- Compliance with IEC/EN/UL 60950 safety standards
- 5-year manufacturer warranty
Download the complete VPH5-0155TR-R datasheet or contact Eaton's technical support for application-specific design guidance.