Is there a pin-compatible replacement for KF126-5.0-2P?

While parts like KF103-5.0-2P and KF127-5.0-2P have the same 5.0mm pitch and pin count, their exact PCB footprint must be verified from the datasheets to confirm pin-to-pin compatibility.

What risks should I check before replacing KF126-5.0-2P?

Key risks include differences in current rating (e.g., KF127-5.0-2P is lower at 15A), supported wire gauge (e.g., KF103-5.0-2P is 22-12 AWG), and minor variations in the physical footprint.

KF126-5.0-2P Alternatives, Datasheet & Cross Reference | CIXI KEFA ELECTRONICS CO., LTD.

The KEFA KF126-5.0-2P is a 2-position, 5.0mm pitch screw terminal block rated for 250V/18A. Alternatives exist but require careful review of current rating, wire gauge, and footprint.

AI replacement insight

Electrical riskmedium

Candidates have different current ratings (15A or 24A) vs the target's 18A.

Package riskmedium

PCB footprint must be verified from datasheets as minor dimensional differences are common.

Can it be replaced directly?

No guaranteed direct drop-in replacement has been identified. Both KF103-5.0-2P and KF127-5.0-2P are strong functional candidates but require datasheet verification for footprint and electrical parameters.

Best replacement path

KF103-5.0-2P is a potential upgrade if the wire gauge is compatible; KF127-5.0-2P is a downgrade risk.

Main risk

The primary risks are electrical (current rating mismatch) and mechanical (wire gauge compatibility and PCB footprint).

Recommended alternatives

Potential upgrade with higher current, but verify wire gauge compatibility and PCB footprint.

View details

Alternative comparison matrix

Feature / factor	KF126-5.0-2P	KF103-5.0-2P	KF127-5.0-2P	Compatibility / risk
Package	5.0mm	5.0mm	Screw Terminal Block	5.0mm / Screw Terminal Block — Pitch matches.; KF127-5.0-2P: Functionally similar type, footprint requires verification.
Current	18A	24A	15A	24A / 15A — Higher current rating is a potential upgrade.; KF127-5.0-2P: Lower current rating is a downgrade.
Application	26-14 AWG	22-12 AWG	26-14 AWG	22-12 AWG / 26-14 AWG — Does not support thinner 26-24 AWG wires like target.; KF127-5.0-2P: Supported wire gauge matches.
Voltage	250V	250V	250V	250V — Voltage rating matches.; KF127-5.0-2P: Voltage rating matches.

Application & sourcing insights

Questions & answers

The KF103-5.0-2P offers a higher current rating (24A) but check that its 22-12 AWG wire range is compatible. For a closer match with a lower current rating (15A), consider the KF127-5.0-2P.