Is there a pin-compatible replacement for KF128L-3.5-3P?

No drop-in, pin-compatible replacement has been fully verified. While KF350-3.5-3P shares the same PCB footprint and pin arrangement, its different wire gauge support means it is not a guaranteed 1-to-1 replacement for all use cases.

What risks should I check before replacing KF128L-3.5-3P?

Before replacing, check three main risks: 1) Wire Gauge: Ensure the replacement supports your required wire size. 2) Termination Style: Confirm compatibility with screw vs. spring-clamp terminals. 3) Electrical Ratings: Verify voltage and current ratings meet or exceed the original's specifications.

KF128L-3.5-3P Alternatives, Datasheet & Cross Reference | CIXI KEFA ELECTRONICS CO., LTD.

Find functional alternatives for the KEFA KF128L-3.5-3P, a 3-position 3.5mm pitch screw terminal block. Review key differences in wire gauge, termination style, and voltage ratings before substitution.

AI replacement insight

Package riskmedium

Alternatives may have different wire gauge support or termination styles (spring-clamp vs. screw).

Electrical riskhigh

Some alternatives have lower voltage ratings, which is a critical safety concern requiring review.

Can it be replaced directly?

No verified direct drop-in replacement is available. KF350-3.5-3P is a close form-fit match but has a more restrictive wire gauge range.

Best replacement path

KF350-3.5-3P offers the same form factor and key ratings but verify your application does not use wire gauges larger than 18 AWG.

Main risk

The primary risk is mechanical and electrical incompatibility, specifically mismatched wire gauge acceptance and different termination types in alternatives.

Recommended alternatives

A form-fit match with identical ratings, but supports a more restrictive wire gauge range; verify your application uses 18 AWG or smaller.

View details

Alternative comparison matrix

Feature / factor	KF128L-3.5-3P	KF350-3.5-3P	KF250NH-3.5-3P	Compatibility / risk
Package	3-pin PCB Terminal Block	PCB Terminal Block	-	PCB Terminal Block — Same connector style.
Pitch	3.5mm	3.5mm	-	3.5mm — Identical pitch ensures PCB footprint compatibility.
Current	10A	10A	15A	10A / 15A — Current rating matches.; KF250NH-3.5-3P: Higher current rating is acceptable.
Wire Gauge	26-16 AWG	24-18 AWG	16-20 AWG	24-18 AWG / 16-20 AWG — Does not support 16 AWG wire unlike target.; KF250NH-3.5-3P: Different supported wire range.
Termination	Screw	-	Spring Clamp	Spring Clamp — Different wire termination method.
Voltage	300V	-	250V	250V — Lower voltage rating is a safety risk.

Application & sourcing insights

Questions & answers

The best alternative is likely KF350-3.5-3P, which matches the footprint, voltage, and current. However, you must verify your application does not require wire gauges larger than 18 AWG, as it has a more limited range than the original.