Is there a pin-compatible replacement for B-3100S20P-A110?

A pin-compatible replacement has not been fully verified. While candidates like Z-231011820106 match the 2x10 pinout and 2.54mm pitch, confirming pin-to-pin compatibility requires comparing the datasheet's mechanical drawing to your PCB layout.

What risks should I check before replacing B-3100S20P-A110?

Before replacing, check three main risks: 1) Mechanical Fit: Ensure the substitute's footprint, height, and shroud dimensions match your PCB layout. 2) Electrical Rating: Confirm the current rating is at least 3.0A. 3) Mating Connector: Ensure the substitute mates correctly with your existing cable or female connector.

B-3100S20P-A110 Alternatives, Datasheet & Cross Reference | Ckmtw

B-3100S20P-A110 is a 20-pin, 2.54mm pitch box header from Ckmtw. While no drop-in replacement is confirmed, several functional alternatives with similar electrical specifications are available, requiring mechanical verification.

AI replacement insight

Package riskmedium

Candidates are 'box headers' but exact dimensions (footprint, height, shroud) must be verified from datasheets.

Electrical risklow

Strong candidates match the 3A current rating, but some alternatives have lower ratings and pose a risk.

Can it be replaced directly?

No drop-in replacement has been verified. Z-231011820106 is a strong functional alternative that requires mechanical drawing comparison to confirm pin-to-pin compatibility.

Best replacement path

Z-231011820106 is the strongest candidate, matching on all key electricals. However, mechanical verification is essential.

Main risk

The primary risk is mechanical incompatibility. While several candidates match electrically, their exact footprint and shroud dimensions must be checked against the PCB layout.

Recommended alternatives

A 20-pin, 2.54mm pitch box header with matching current rating and temperature range. Verify mechanical fit.

View details

Alternative comparison matrix

Feature / factor	B-3100S20P-A110	Z-231011820106	Z-230010820209	DC3-2.54-20PAS	Compatibility / risk
Package	Box Header	Box Header, Through Hole	Box Header, Through Hole	Box Header, Through Hole	Box Header, Through Hole — Candidate is a through-hole box header, matching target type. Verify mechanical drawing for exact footprint.; Z-230010820209: Candidate is a through-hole box header. Verify mechanical drawing for exact footprint.; DC3-2.54-20PAS: Candidate is a through-hole box header. Verify mechanical drawing for exact footprint.
Pinout	20	20	-	20	20 — Same 2x10 pin configuration and 2.54mm pitch.; DC3-2.54-20PAS: Same 2x10 pin configuration and 2.54mm pitch.
Current	3.0A	3A	3A	1.5A	3A / 1.5A — Current rating matches the target.; Z-230010820209: Current rating matches the target.; DC3-2.54-20PAS: Current rating is 50% lower than the target. This is a significant downgrade.
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.; DC3-2.54-20PAS: Operating temperature range matches.
Voltage	1000V (withstand)	-	500V AC	-	500V AC — Withstand voltage is lower than target's implied 1000V rating. Check application requirements.
Material	Brass	-	Copper Alloy	-	Copper Alloy — Contact material differs but is likely acceptable.

Application & sourcing insights

Questions & answers

The best alternative identified is Nextron's Z-231011820106. It matches the target's pin count, pitch, current rating, and temperature range. However, you must verify its mechanical dimensions from the datasheet before ordering.