VPH4-0047-R

Overview

The VPH4-0047-R is a surface-mount transformer from Eaton Electronics Division, designed for switching mode power supplies (SMPS). It features an inductance of 7.94 µH with a tolerance of ±20%. The component has a maximum DC current rating of 1.94 A and a minimum DC current rating of 1.41 A. Its coil resistance is 0.0828 Ω. The physical dimensions are 17.10 mm in length, 22.30 mm in width, and a maximum height of 8.40 mm. It operates within a temperature range of -40°C to +125°C.

Feature Summary

• Configurable Versa-Pac design for flexible integration
• Surface mount construction for automated assembly
• Shielded magnetic structure to reduce EMI

Applications

• Switching Mode Power Supplies (SMPS)
• Isolated power conversion circuits
• Industrial control systems

Procurement Notes

Verify the specific package variant, as Eaton offers both VPH3 and VPH4 series with similar naming conventions but different physical footprints. Confirm that the required isolation voltage and thermal performance meet the target application's safety standards. Check for RoHS compliance status if restricted substances are a concern. Ensure the ordering suffix matches the desired tape and reel configuration for manufacturing efficiency.

Selection Notes

Select this component when a compact, shielded transformer is needed for high-frequency SMPS applications. The 7.94 µH value suits specific flyback or forward converter topologies. Compare against the VPH3 series if a smaller footprint is acceptable, noting the dimensional differences. Consider the 1.94 A current rating to ensure adequate headroom for peak load conditions without saturation.

Part Context

This part belongs to the Versa-Pac family of configurable inductors and transformers. Eaton Electronics Division utilizes proprietary materials to provide reliable energy storage and isolation in space-constrained designs. The VPH4 series specifically targets applications requiring robust shielding and standardized surface-mount profiles for consistent manufacturing yields.

Replacement Considerations

The VPH3-0047-R is a related component within the same product line but differs in physical dimensions and potentially electrical characteristics. Verify compatibility before substitution, as the VPH3 series may have a different footprint or mounting style. No other direct cross-model substitutes are publicly confirmed for this specific part number.