Is there a pin-compatible replacement for ORH-B36G?

Yes, there are many blue LEDs in the same 0603 package, making them pin-compatible from a mechanical standpoint. However, no electrically identical drop-in replacement was found. All viable alternatives require circuit changes due to different forward voltage and current ratings.

What risks should I check before replacing ORH-B36G?

The primary risk is the mismatched drive current. The ORH-B36G is a low-current 2mA part, while most modern replacements are specified at 20mA. Using a replacement without changing the series resistor can result in incorrect brightness or damage to the LED. Always recalculate the resistor value for the new LED's forward voltage and desired current.

ORH-B36G Alternatives, Datasheet & Cross Reference | Orient

ORH-B36G is a low-current Super Blue LED in a standard 0603 package. Finding a replacement requires careful attention to electrical parameters, as most alternatives have the same form factor but are designed for a much higher drive current, necessitating circuit modifications.

AI replacement insight

Electrical riskhigh

Alternatives require 10-15x the drive current of the original, mandating circuit redesign to avoid damage and achieve desired brightness.

Package risklow

The 0603 package is standard, and alternatives match the form factor and pinout.

Sourcing risklow

Blue 0603 LEDs are widely available from multiple manufacturers.

Can it be replaced directly?

No direct drop-in replacement was found. While several alternatives share the 0603 package and blue color, they are designed for a much higher drive current (e.g., 20mA vs. 2mA) and require recalculating the series resistor.

Best replacement path

Functional alternatives with circuit modification.

Main risk

Electrical incompatibility due to different drive current requirements.

Recommended alternatives

A functional alternative in the same package, but requires a different drive current and circuit review.

View details

Alternative comparison matrix

Feature / factor	ORH-B36G	NCD0603B1	XL-1608UBC-06A	SZYY0603B1	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric) — Package size and pin count match.; XL-1608UBC-06A: Package size and pin count match.; SZYY0603B1: Package size and pin count match.
Color	Super Blue (460 nm)	Blue (468 nm)	Blue (465 nm)	Blue (460-475 nm)	Blue (468 nm) / Blue (465 nm) / Blue (460-475 nm) — Color matches, wavelength is very similar.; XL-1608UBC-06A: Color matches, wavelength is very similar.; SZYY0603B1: Color matches, wavelength range includes target.
Current	2 mA	20 mA	20 mA	30 mA	20 mA / 30 mA — Requires 10x higher drive current for specified brightness.; XL-1608UBC-06A: Requires 10x higher drive current for specified brightness.; SZYY0603B1: Requires 15x higher drive current for specified brightness.
Voltage	2.6V (Typ) @ 2mA	3.0V (Typ) @ 20mA	2.6-3.4V @ 20mA	2.6-3.1V @ 30mA	3.0V (Typ) @ 20mA / 2.6-3.4V @ 20mA / 2.6-3.1V @ 30mA — Higher forward voltage at a different test current.; XL-1608UBC-06A: Forward voltage range differs and is specified at a higher current.; SZYY0603B1: Forward voltage range differs and is specified at a much higher current.
Temperature	-25°C to 80°C	-30°C to +85°C	-40°C to +85°C	-40°C to +85°C	-30°C to +85°C / -40°C to +85°C — Candidate has a wider operating temperature range.; XL-1608UBC-06A: Candidate has a wider operating temperature range.; SZYY0603B1: Candidate has a wider operating temperature range.

Application & sourcing insights

Questions & answers

The best alternatives for ORH-B36G are other blue 0603 LEDs like XL-1608UBC-06A or NCD0603B1. However, these are not drop-in replacements as they require a higher drive current (typically 20mA vs. the original's 2mA) and will need a different series resistor.