Is there a pin-compatible replacement for KF350-3.5-3P?

The KEFA KF128L-3.5-3P is a potential form, fit, and function replacement, but pin-to-pin compatibility is not guaranteed without comparing the datasheet dimensional drawings of both parts.

What risks should I check before replacing KF350-3.5-3P?

Key risks include mechanical footprint mismatch, which can prevent assembly, and electrical downgrades. Check voltage/current ratings and termination style (e.g., screw vs. spring-clamp) to ensure system safety and functionality.

KF350-3.5-3P Alternatives, Datasheet & Cross Reference | CIXI KEFA ELECTRONICS CO., LTD.

Finding a substitute for the KEFA KF350-3.5-3P screw terminal block involves matching its 3-position, 3.5mm pitch, and 300V/10A ratings. Alternatives exist but require careful review of footprint and electrical parameters.

AI replacement insight

Package riskmedium

Footprint must be verified via datasheet comparison to ensure mechanical fit.

Electrical risklow

The best candidate matches key ratings, but others have lower voltage or current.

Can it be replaced directly?

No drop-in replacement is confirmed without datasheet validation. KF128L-3.5-3P is the closest functional match.

Best replacement path

KF128L-3.5-3P is the most promising path, requiring only a footprint verification.

Main risk

The primary risk is mechanical incompatibility; a different footprint would require a PCB redesign.

Recommended alternatives

Matches key electrical ratings and mechanical form, but requires a datasheet review to confirm footprint compatibility.

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Alternative comparison matrix

Feature / factor	KF350-3.5-3P	KF128L-3.5-3P	KF250NH-3.5-3P	Compatibility / risk
Package	PCB Terminal Block	3-pin PCB Terminal Block	-	3-pin PCB Terminal Block — Package type matches.
Pitch	3.5mm	3.5mm	-	3.5mm — Pitch is identical.
Voltage	300V	300V	250V	300V / 250V — Voltage rating matches.; KF250NH-3.5-3P: Lower voltage rating.
Current	10A	10A	15A	10A / 15A — Current rating matches.; KF250NH-3.5-3P: Higher current rating.
Wire Gauge	24-18 AWG	26-16 AWG	16-20 AWG	26-16 AWG / 16-20 AWG — Wider wire gauge range is compatible.; KF250NH-3.5-3P: Different wire gauge range.
Termination	Screw	-	Spring Clamp	Spring Clamp — Different wire termination method.

Application & sourcing insights

Questions & answers

The KEFA KF128L-3.5-3P is a strong candidate, matching key electrical and mechanical specs. However, its physical footprint must be verified against your PCB layout before use.