Is there a pin-compatible replacement for GL5506（4-7K）?

No direct pin-compatible replacement has been verified. The GL5516 has the same 5mm through-hole package and pin count, but its different light resistance means it is a functional alternative, not a drop-in replacement.

What risks should I check before replacing GL5506（4-7K）?

When replacing the GL5506, primarily verify the light resistance range. The circuit's sensitivity to the 5-10kΩ range of the GL5516 versus the original 4-7kΩ is the main electrical risk. Also, confirm the power dissipation in your specific application.

GL5506（4-7K） Alternatives, Datasheet & Cross Reference | HL (Haolin Elec)

Find and compare alternatives for the GL5506（4-7K） photoresistor. This page analyzes potential substitutes, highlighting key parametric differences in resistance, power, and package for engineering review.

AI replacement insight

Electrical riskmedium

Light resistance range differs, requiring circuit re-evaluation.

Package risklow

Package is a matching 5mm through-hole.

Can it be replaced directly?

No direct, drop-in replacement is available. The closest candidate, GL5516, requires review due to a different light resistance range.

Best replacement path

Review Senba GL5516 as a functional alternative, paying close attention to the light resistance difference.

Main risk

The primary risk is the shift in light resistance, which could alter the behavior of light-sensing circuits.

Recommended alternatives

A functional alternative in the same package, but with a different light resistance range (5-10kΩ vs 4-7kΩ) requiring review.

View details

Alternative comparison matrix

Feature / factor	GL5506（4-7K）	GL5516	Compatibility / risk
Package	5mm Through-Hole	5mm Through-Hole	5mm Through-Hole — Package matches.
Resistance	0.5 MΩ	0.5 MΩ	0.5 MΩ — Dark resistance matches.
Power	90 mW	90 mW	90 mW — Fails strict 1.5x power rule (ER-RES-003).
Voltage	150 VDC	150 V	150 V — Max voltage matches.

Application & sourcing insights

Questions & answers

The Senba GL5516 is a potential functional alternative. It shares the same package, voltage rating, and dark resistance, but has a slightly different light resistance (5-10kΩ vs 4-7kΩ) and requires engineering validation.