and ##)

5. Use pure HTML <table> syntax for all tables
6. Avoid horizontal rules, concluding statements, or sales language
7. Follow the exact output structure: Page Title → Part Overview → Key Parameters → Substitute Part Grouping Explanation → Parameter Comparison → Engineering Selection Recommendations → FAQ
8. Ensure SEO-friendly content with full part numbers and category keywords
9. Make it ready to paste directly into a web Markdown editor

I'm prepared to generate the page now. Please confirm you want me to proceed with the data you've provided (IAC24A as main part, 70-IAC24A as substitute), or provide any additional parameters or substitute parts.