Is there a pin-compatible replacement for SZYY0603G?

Yes, several green 0603 LEDs like SZYY0603G1 and FC-1608G1-520 are pin-compatible in package. However, electrical differences, especially the test current for brightness, mean they are not guaranteed drop-in replacements without review.

What risks should I check before replacing SZYY0603G?

Key risks include differences in luminous intensity due to varying test currents (10mA vs 20mA), minor shifts in dominant wavelength affecting the exact shade of green, and variations in forward voltage that could impact current-limiting resistors.

SZYY0603G Alternatives, Datasheet & Cross Reference | Shenzhen Yongyu Optoelectronics Co., Ltd.

AI replacement insight

Electrical riskmedium

Test current for brightness differs, affecting drive circuitry and perceived brightness.

Package risklow

All viable candidates share the same 0603 package.

Sourcing risklow

Green 0603 LEDs are widely available from multiple vendors.

Can it be replaced directly?

No direct drop-in replacement has been verified. SZYY0603G1 is a strong functional alternative that requires engineering review due to different test conditions.

Best replacement path

SZYY0603G1 from the same manufacturer is the closest option, but its brightness is specified at 20mA, requiring circuit validation.

Main risk

The primary risk is a mismatch in luminous intensity, as potential substitutes are often tested at a higher forward current (20mA) than the target's 10mA.

Recommended alternatives

2

SZYY0603G1

Ltd.; SMC(Sangdest Microelectronicstronic (Nanjing)); Shandong Jingdao Microelectronics; PSA(Prosperity Dielectrics); cjiang (Changjiang Microelectronics Tech); Hanbo Electronic; Jing Extension of the Electronic Co.; Shanghai Mingda Microelectronics; Jinrui Electronic Materials Co.; TLC Electronic; Shanghai Siproin Microelectronics; Jiangsu JieJie Microelectronics; Hangzhou Silan Microelectronics; WPMtek(Wei Pan Microelectronics); Corebai Microelectronics; SOC(Shenzhen SinOne Microelectronics); Wuxi China Resources Huajing Microelectronics; A Power microelectronics; CTR; MindMotion Microelectronics; Precision Electronic Components Ltd.; Wuxi Chipown Micro-electronics; OPSCO Optoelectronics; Yongyu Photoelectric; SK Electronic; HopeRF Micro-electronics; Flashchip Microelectronics; Eutech Microelectronics; TOPPOWER(Nanjing Extension Microelectronics); RONGHE Microelectronics; Hangzhou SDIC Microelectronics; Fuji Electric; UE Electronic; Shenzhen Chip Hope Micro-Electronics; ELAN Microelectronics; Sine Microelectronics; LOCKZHINER Electronic; Sequoia Microelectronics; TIH Microelectronics; SUPCON Micro-electronics; RZ(Wuxi Smart Microelectronics); JT Microelectronics; WIELAND ELECTRIC; GuangZhou YiHua Electronic; Mitsubishi Electric; lselectric; Kallu Electronic; LIUYUE electronic; Epticore Microelectronics (Shanghai); Shanghai Mixinno Microelectronics

Needs validationlow risk

Strong alternative from the same manufacturer with matching package, color, and voltage, but different test current.

View details

Alternative comparison matrix

Feature / factor	SZYY0603G	SZYY0603G1	FC-1608G1-520	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric) — Package size matches.; FC-1608G1-520: Package size matches.
Color	Green	Green	Green	Green — Color matches.; FC-1608G1-520: Color matches.
Wavelength	513 nm - 528 nm	513 nm - 528 nm	-	513 nm - 528 nm — Dominant wavelength range matches.
Voltage	2.6 V - 3.1 V	2.6 V - 3.1 V	3.0 V	2.6 V - 3.1 V / 3.0 V — Forward voltage range matches.; FC-1608G1-520: Forward voltage is within target range.
Current	10 mA	20 mA	20 mA	20 mA — Luminous intensity is specified at 20mA, target at 10mA.; FC-1608G1-520: Luminous intensity is specified at 20mA, target at 10mA.
Viewing Angle	120°	-	140°	140° — Wider viewing angle may affect light distribution.

Application & sourcing insights

Questions & answers

SZYY0603G1 is the closest alternative, being from the same manufacturer with similar specs. However, its brightness is rated at 20mA vs the target's 10mA, so performance should be verified in-circuit.