
Cross-vendor alternative with matching pin count, pitch, and electrical ratings.
Find reliable substitutes for the Ckmtw B-3100S40P-A110 40-pin box header. This page provides verified alternatives and functional replacements, with detailed comparisons to ensure compatibility.
Multiple candidates share the same 'Box Header' package, pitch, and pin count. Verify detailed dimensions.
Candidates have matching or superior current, voltage, and temperature ratings.
Multiple alternative manufacturers are available, improving supply chain resilience.
Yes, several potential direct replacements exist, such as B-3000S40P-0110. A datasheet review to confirm mechanical dimensions is the final required step.
Use B-3000S40P-0110 for a likely direct fit or 321040SG0ABK00A01 as a strong cross-vendor option after datasheet verification.
Mechanical mismatch. While key specs align, subtle differences in shroud dimensions or pin length can affect fit and mating.

Cross-vendor alternative with matching pin count, pitch, and electrical ratings.
| Feature / factor | B-3100S40P-A110 | 321040SG0ABK00A01 | B-3000S40P-0110 | Z-231011840106 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Box Header | Box Header | Box Header | Through Hole | Box Header / Through Hole / Box Header w/ Latches — Package type matches.; B-3000S40P-0110: Package type matches.; Z-231011840106: Inconsistent package name, but datasheet shows it is a Box Header. Verification required.; Z-230010840209: Candidate has ejector latches, target does not. Check for mechanical interference. |
| Pin Count | 40 | 40 | 40 | 40 | 40 — Pin count matches.; B-3000S40P-0110: Pin count matches.; Z-231011840106: Pin count matches.; Z-230010840209: Pin count matches. |
| Pitch Mm | 2.54mm | 2.54mm | 2.54mm | 2.54mm | 2.54mm — Pin pitch matches.; B-3000S40P-0110: Pin pitch matches.; Z-231011840106: Pin pitch matches.; Z-230010840209: Pin pitch matches. |
| Current | 3.0A | 3.0A | 3.0A | 3A | 3.0A / 3A — Current rating matches.; B-3000S40P-0110: Current rating matches.; Z-231011840106: Current rating matches.; Z-230010840209: Current rating matches. |
| Temperature | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | - | -40°C to +105°C — Operating temperature range matches.; B-3000S40P-0110: Operating temperature range matches. |
B-3000S40P-0110 from the same manufacturer, Ckmtw, is a strong candidate with matching specifications. For a cross-vendor option, JILN 321040SG0ABK00A01 also offers a close parametric match. Always verify datasheets.