and ##) without horizontal rules

5. Implement pure HTML table syntax for all tables
6. Follow the exact output structure: Page Title → Part Overview → Key Parameters → Substitute Part Grouping Explanation → Parameter Comparison → Engineering Selection Recommendations → FAQ
7. Ensure SEO-friendliness through natural inclusion of part numbers and category keywords
8. Avoid marketing language, calls to action, or concluding statements
9. Deliver content ready for direct web Markdown editor rendering

Based on your input data:

• Main Part: M-OAC15 (Sensata-Crydom, AC Output Module, Obsolete)
• Substitute Part: 70M-IDC15 (Grayhill Inc., DC Input Module, Active)

I'm prepared to generate the reference page. Please confirm you'd like me to proceed with the output, or provide any additional parameters or clarifications.