Is there a pin-compatible replacement for SZYY0805B?

Several blue LEDs exist in the same 0805 package, but candidates like YLED0805B and D-B080508B1-KS2 have different forward current and brightness ratings, requiring circuit review. A true pin-to-pin match has not been verified.

What risks should I check before replacing SZYY0805B?

Key risks include package size mismatch (e.g., 0603 vs 0805), differences in forward current which can affect the driver circuit, and variations in luminous intensity which impact visual appearance.

SZYY0805B Alternatives, Datasheet & Cross Reference | Shenzhen Yongyu Optoelectronics Co., Ltd.

SZYY0805B is a standard blue LED in an 0805 package. Finding a direct replacement requires matching color, package, forward voltage, and a 10mA forward current.

AI replacement insight

Electrical riskhigh

Forward current mismatch in several same-package candidates.

Package riskhigh

One functional alternative requires a PCB layout change.

Sourcing risklow

Multiple alternatives are available.

Can it be replaced directly?

No direct, verified drop-in replacement has been identified. All same-package candidates have a different forward current, requiring circuit review.

Best replacement path

For new designs, SZYY0603B offers similar electricals in a smaller package. For existing boards, D-B080508B1-KS2 is a potential option if the driver circuit can handle 20mA.

Main risk

The primary risk is electrical mismatch, specifically the forward current, which can lead to component failure or incorrect brightness.

Recommended alternatives

A functionally similar blue LED from the same manufacturer, but in a smaller 0603 package.

View details

Alternative comparison matrix

Feature / factor	SZYY0805B	SZYY0603B	D-B080508B1-KS2	YLED0805B	Compatibility / risk
Package	0805 (2012 Metric)	0603 (1608 Metric)	0805 (2012 Metric)	0805	0603 (1608 Metric) / 0805 (2012 Metric) — Smaller package, requires PCB change.; D-B080508B1-KS2: Package size matches.; YLED0805B: Package size matches.
Color	Blue	Blue	Blue	Blue	Blue — Color matches.; D-B080508B1-KS2: Color matches.; YLED0805B: Color matches.
Current	10 mA	10 mA	20 mA	25 mA	10 mA / 20 mA / 25 mA — Forward current matches.; D-B080508B1-KS2: Requires double the current.; YLED0805B: Requires higher current, check driver circuit.
Luminous Intensity	34-100 mcd	70-175 mcd	35-60 mcd	20-80 mcd	70-175 mcd / 35-60 mcd / 20-80 mcd — Higher brightness.; D-B080508B1-KS2: Narrower and lower max brightness.; YLED0805B: Lower brightness range.
Voltage	2.6-3.1V	-	-	2.7-3.1V	2.7-3.1V — Forward voltage range is compatible.

Application & sourcing insights

Questions & answers

SZYY0603B from the same manufacturer is electrically similar but in a smaller 0603 package, requiring a board change. Other 0805 options like D-B080508B1-KS2 exist but require different forward current.