Is there a pin-compatible replacement for HC-1.25-8Y?

Yes, HC-1.25-8A is very likely a pin-compatible replacement. For cross-vendor options like ZX-MX1.25-8PZZ, you must verify the mechanical dimensions from the datasheet to confirm pin-to-pin compatibility.

What risks should I check before replacing HC-1.25-8Y?

The main risk is mechanical mismatch. Before replacing, confirm the mounting type (Through-Hole vs. SMT), orientation (Straight vs. Right-Angle), and check the datasheet for the exact footprint and height dimensions.

HC-1.25-8Y Alternatives, Datasheet & Cross Reference | HCTL

HC-1.25-8Y is an 8-pin, 1.25mm pitch header from HCTL, likely with a straight through-hole configuration. When seeking replacements, prioritize candidates with matching mechanical form factor and electrical ratings to ensure compatibility.

AI replacement insight

Package riskhigh

Using a non-THT or non-straight header will cause assembly failure. Datasheet verification is critical.

Electrical risklow

Key electrical ratings (1A, 125V) are standard for this connector type and easily matched.

Can it be replaced directly?

Yes, HC-1.25-8A is a very likely direct replacement for HC-1.25-8Y, sharing the same manufacturer, form factor, and electrical ratings.

Best replacement path

Use HC-1.25-8A from the same manufacturer for the highest chance of compatibility.

Main risk

The primary risk is mechanical incompatibility. Using a part with a different mounting style (SMT vs. THT) or orientation (right-angle vs. straight) will not work without a board redesign.

Recommended alternatives

A very strong alternative from the same manufacturer with identical core specifications and mounting style.

View details

Alternative comparison matrix

Feature / factor	HC-1.25-8Y	HC-1.25-8A	ZX-MX1.25-8PZZ	Compatibility / risk
Manufacturer	HCTL	HCTL	Megastar	HCTL / Megastar — Same manufacturer, different series suffix ('A' vs 'Y').; ZX-MX1.25-8PZZ: Cross-vendor alternative.
Package	Through Hole, Straight (inferred)	Through Hole, Straight	Through Hole, Straight	Through Hole, Straight — Matches target's inferred mounting style.; ZX-MX1.25-8PZZ: Matches target's inferred mounting style.
Current	1A / 125V	1A / 125V	1A / 125V	1A / 125V — Electrical ratings match.; ZX-MX1.25-8PZZ: Electrical ratings match.
Material	Nylon 66	Nylon 46	-	Nylon 46 — Slightly different insulator material, may have better temp performance.
Temperature	Not specified	-	-25°C to +85°C	-25°C to +85°C — Standard operating range, likely matches target.

Application & sourcing insights

Questions & answers

The best alternative is HC-1.25-8A, as it's from the same manufacturer (HCTL) and shares all critical specifications, including the inferred straight through-hole mounting style.