Is there a pin-compatible replacement for DC3-2.54-20PAS?

While several candidates like Z-231011820106 match the pin count, pitch, and package, they are not verified as pin-to-pin replacements. A review of the datasheet's mechanical drawing is required to confirm footprint compatibility.

What risks should I check before replacing DC3-2.54-20PAS?

The main risk is mechanical incompatibility. While pitch and pin count may match, the shroud dimensions, height, or features like ejector latches can cause interference. Always check the datasheet drawing before ordering.

DC3-2.54-20PAS Alternatives, Datasheet & Cross Reference | ZHOURI

DC3-2.54-20PAS is a common 20-pin, 2.54mm pitch through-hole box header. Several functional alternatives exist with upgraded current ratings, but require verification of mechanical dimensions for a drop-in fit.

AI replacement insight

Package riskmedium

Shroud dimensions, height, and features like ejectors can vary between manufacturers.

Electrical risklow

Most identified alternatives offer superior current ratings, which is a safe upgrade.

Can it be replaced directly?

No direct, verified pin-to-pin replacement has been identified. However, Z-231011820106 is a strong candidate that is likely compatible after datasheet review.

Best replacement path

Use a form-fit-function match like Z-231011820106, which offers a higher current rating, after verifying its mechanical drawing against the PCB layout.

Main risk

Mechanical fit. The shroud dimensions and overall height of the connector must be checked to ensure it fits the PCB layout and enclosure without interference.

Recommended alternatives

Strong functional alternative with matching package, pin count, and pitch, plus a higher current rating.

View details

Alternative comparison matrix

Feature / factor	DC3-2.54-20PAS	Z-230010820209	Z-231011820106	331020SG0ABLA02	Compatibility / risk
Package	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole — Mounting type matches.; Z-231011820106: Mounting type matches.; 331020SG0ABLA02: Mounting type matches.
Pinout	20	20	20	20	20 — Pin count, rows, and pitch match.; Z-231011820106: Pin count, rows, and pitch match.; 331020SG0ABLA02: Pin count, rows, and pitch match.
Current	1.5A	3A	3A	3A	3A — Candidate has a higher current rating.; Z-231011820106: Candidate has a higher current rating.; 331020SG0ABLA02: Candidate has a higher current rating.
Voltage	Not specified	500V AC	-	-	500V AC — Higher withstand voltage.
Application	Box Header	-	Box Header	Ejector Header	Box Header / Ejector Header — Connector type matches.; 331020SG0ABLA02: Ejector latches may cause mechanical interference.

Application & sourcing insights

Questions & answers

Z-231011820106 and Z-230010820209 are strong functional alternatives with higher current ratings. They match key form-factor attributes, but users should verify mechanical drawings to ensure a perfect fit.