Details Regarding End-of-Life PN's and Curtis Industries Replacements

Curtis Industries publishes a formal cross‑reference and supports one‑to‑one terminal block replacements, but deep “end of life by part number” detail is not publicly available in a single consolidated list.

What exists today

• Companies provide technical, quality, and lifecycle information at their support/FAQ pages, but they do not post a comprehensive public EOL list by part number.
  
  
• Curtis Industries actively positions their terminal blocks as drop‑in or custom replacements for many competitor blocks (including Molex and others) and offers a cross‑reference lookup tool for competitor PNs.
  
  
• The Curtis cross‑reference tool is the main “deep detail” source, but it is interactive rather than a downloadable table, so you enter each PN to see the Curtis equivalent and notes.

How to get detailed PN‑level mapping

For each PN you care about, you can:

1. Use the Curtis cross‑reference tool
   • Go to the Curtis “Terminal Block Cross Reference Lookup Tool.”
   • Enter the EOL part number in the competitor field; the tool will return the closest Curtis equivalent, including family, pitch, poles, ratings, and any caveats (e.g., footprint only, electrical equivalent, or “call factory”).
     
     
2. Collect the key technical parameters
   • Identify the series type (barrier, PCB, DIN), pitch, poles, voltage/current, insulation material, flammability class, approvals (UL, CSA), and wire entry angle.
   • From Curtis: the same parameters for the suggested equivalent.
   • This lets you validate whether the Curtis part is a true drop‑in (form/fit/function) or only form/fit or functionally similar.
     
     
3. Create an internal EOL/replacement table
   • Build a spreadsheet with columns: PN,  series, status (Active/EOL), last‑time‑buy date (if known from or distribution), Curtis PN, differences (pitch, creepage/clearance, agency approvals, temperature rating), and comments.
   • Populate it by running your active BOM list through the Curtis cross‑reference and, where needed, distributor data sheets (e.g., DigiKey, TrustedParts for Curtis, and any distributor still listing the parts).

Getting “deep” non‑public details

Because the really deep items (formal EOL notices, last‑time‑buy, last‑ship, PCN/PDN numbers, and coverage of special variants) are usually not fully exposed on the open web, the practical route is:

• Contact technical/support with your PN list and explicitly request EOL/PCN status and recommended alternatives.
  
  
• Contact Curtis Industries application engineering and provide:

• • • Your PN list (or key series)
    • Any must‑have parameters (UL file, creepage, mounting style, specific screw type, etc.)
    • They routinely design custom or semi‑custom terminal blocks when there is no perfect standard equivalent.

In many rep/distribution programs, Curtis will supply a private cross‑reference matrix or at least confirm “approved” equivalents once you demonstrate volume and provide the list.

If you need assistance with any of these steps, the MaRCTech2 team can provide support.

Contact Jennifer, Nick, or Krystal for more!