What risks should I check before replacing 1803439?

Before replacing 1803439, check three main risks: 1) Mechanical Fit: Verify the candidate's dimensions, pin length, and orientation. 2) Electrical Ratings: Ensure voltage and current ratings are sufficient for your application; one candidate has a lower IEC current rating. 3) Mating Compatibility: Confirm the substitute header will correctly mate with your existing plug.

1803439 Alternatives, Datasheet & Cross Reference | Phoenix Contact

Finding a substitute for the Phoenix Contact 1803439 header involves matching the 3-position, 3.81mm pitch format. While several alternatives offer compatible electrical ratings, the main challenge is confirming the mechanical form factor for a correct PCB fit.

AI replacement insight

Package riskhigh

Exact dimensions, orientation, and pinout are unverified and critical for connectors. Datasheet review is mandatory.

Electrical risklow

Most candidates meet or exceed voltage/current ratings, but one has a lower IEC current rating (7A vs 8A).

Can it be replaced directly?

Direct replacement for 1803439 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

form_fit_function

Main risk

The primary risk is mechanical incompatibility. This includes differences in pin length, housing dimensions, and mounting orientation (vertical vs. right-angle) which could prevent assembly.

Recommended alternatives

Matches key electrical specs but requires mechanical verification to confirm fit.

View details

Alternative comparison matrix

Feature / factor	1803439	MX15EDGRC-3.81-03P-GN01-Cu-A	XY2500V-E-3.81-3P	WJ15EDGVM-3.81-03P-14-00A	Compatibility / risk
Pin Count	3	3	3	3	3 — Pin count matches.; XY2500V-E-3.81-3P: Pin count matches.; WJ15EDGVM-3.81-03P-14-00A: Pin count matches.
Pitch	3.81mm	3.81mm	3.81mm	3.81mm	3.81mm — Pitch matches.; XY2500V-E-3.81-3P: Pitch matches, critical for PCB layout.; WJ15EDGVM-3.81-03P-14-00A: Pitch matches.
Voltage	160V	300V	300V	160V (IEC)	300V / 160V (IEC) — Voltage rating is higher.; XY2500V-E-3.81-3P: Voltage rating is higher, providing more margin.; WJ15EDGVM-3.81-03P-14-00A: IEC voltage matches, UL rating is higher.
Current	8A	8A	8A	7A (IEC)	8A / 7A (IEC) — Current rating matches.; XY2500V-E-3.81-3P: Current rating matches the target.; WJ15EDGVM-3.81-03P-14-00A: IEC current rating is a downgrade. UL rating is 8A. Application must be checked.
Package	Header	Through Hole	Through Hole	Terminal Block	Through Hole / Terminal Block — Package type is similar, but exact dimensions and orientation must be verified from datasheet.; XY2500V-E-3.81-3P: Package type is similar, but exact dimensions and orientation must be verified from datasheet.; WJ15EDGVM-3.81-03P-14-00A: Package type is similar, but exact dimensions and orientation must be verified from datasheet.

Application & sourcing insights

Questions & answers

Verified drop-in options for 1803439 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.