Original Part
Alternative Part
1. 1-1825139-0 Substitution Conclusion
This part is fully compatible with the original part in core electrical specifications (DPDT, On-Off-On, 5A/120VAC/28VDC) and key mechanical mounting dimensions (panel cutout of 6.35mm, 1/4-40 thread, solder lug terminals), providing a direct hardware replacement basis. The differences lie in a significantly shorter electrical life (6,000 cycles vs. 40,000 cycles) and the lack of a specified Ingress Protection (IP) rating. For applications involving frequent operation or exposure to dust/moisture environments, the substitute's long-term reliability and environmental robustness may be inferior to the original part. It is therefore only suitable for general-purpose applications where high switching endurance and environmental sealing are not critical.
2. 5649AB Substitution Conclusion
This part matches the original in circuit function and actuation mode, and offers a longer electrical life (50,000 cycles) and slightly higher AC ratings (6A/125VAC), which are positive differences. The deviations are a slightly larger panel cutout diameter (6.50mm vs. 6.35mm) and the absence of a specified Ingress Protection (IP) rating. Direct replacement for the cutout may require minor panel modification; otherwise, potential issues include mounting play or gaps. The unspecified IP rating similarly introduces uncertainty regarding reliability in harsh environments. This substitute is suitable for applications where minor panel adjustments are acceptable, a higher cycle life is desired, but strict dust/waterproofing requirements are not present.
Analysis ID: D254-B8DC000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com