Is there a pin-compatible replacement for KF250-3.5-2P-1?

No direct pin-compatible replacement with the same spring clamp mechanism has been confirmed. Form-fit alternatives with screw terminals exist, but you must compare datasheets to ensure the PCB footprint (pin layout and dimensions) is compatible with your design.

What risks should I check before replacing KF250-3.5-2P-1?

The main risk is the different wire termination method: the target uses a spring clamp, while common alternatives use screw terminals. You must also verify the PCB footprint from the datasheet to ensure mechanical compatibility before soldering.

KF250-3.5-2P-1 Alternatives, Datasheet & Cross Reference | CIXI KEFA ELECTRONICS CO., LTD.

KEFA KF250-3.5-2P-1 is a 2-position, 3.5mm pitch spring clamp terminal block. While direct spring-clamp replacements are unconfirmed, several functional alternatives with screw terminals are available that match key electrical and mechanical specifications.

AI replacement insight

Electrical risklow

Candidates meet or exceed voltage/current ratings.

Package riskmedium

Termination style differs (spring vs. screw). PCB footprint must be verified via datasheet comparison.

Sourcing risklow

Multiple vendors offer similar 3.5mm 2P terminal blocks.

Can it be replaced directly?

No direct pin-for-pin replacement with the same spring clamp mechanism has been identified. Alternatives with screw terminals are available but require engineering review.

Best replacement path

Use a screw terminal block like KANGNEX WJ250B-3.5-02P-11-00A or DEGSON DG350-3.5-02P-14-00A(H), which match key specs but require verifying the footprint and accepting a different wire termination method.

Main risk

The primary risk is the mechanical and functional difference between the target's spring clamp and the alternatives' screw terminals.

Recommended alternatives

A 2-position, 3.5mm pitch screw terminal block with a higher current rating. Footprint and termination style must be verified.

View details

Alternative comparison matrix

Feature / factor	KF250-3.5-2P-1	DG350-3.5-02P-14-00A(H)	WJ250B-3.5-02P-11-00A	Compatibility / risk
Pitch	3.5mm	3.5mm	3.5mm	3.5mm — Matches target.; WJ250B-3.5-02P-11-00A: Matches target.
Positions	2	2	2	2 — Matches target.; WJ250B-3.5-02P-11-00A: Matches target.
Current	5A	7A	7A	7A — Higher UL current rating is a safe upgrade.; WJ250B-3.5-02P-11-00A: Higher current rating is a safe upgrade.
Voltage	300V	300V	300V	300V — UL voltage rating matches.; WJ250B-3.5-02P-11-00A: UL voltage rating matches.
Termination	Spring Clamp	Screw Terminal	Screw Terminal	Screw Terminal — Target is spring clamp; user must verify this is acceptable.; WJ250B-3.5-02P-11-00A: Target is spring clamp; user must verify this is acceptable.

Application & sourcing insights

Questions & answers

The best alternatives are screw terminal blocks like KANGNEX WJ250B-3.5-02P-11-00A or DEGSON DG350-3.5-02P-14-00A(H). They match the 3.5mm pitch, 2-position format, and electrical ratings, but require verifying the PCB footprint.