
YONGYU
A functional alternative in the same package, but with a higher forward voltage and different shade of green.
Finding a replacement for the Broadcom HSMG-C190 green LED requires careful consideration. While alternatives in the same 0603 package exist, they typically have a higher forward voltage and a different color shade, necessitating circuit and design review.
Higher forward voltage requires recalculating and replacing the current-limiting resistor.
Alternatives are available in the same 0603 package.
Considered alternatives are readily available from multiple sources.
No direct, drop-in replacement for the HSMG-C190 was found. All potential alternatives require circuit modifications due to a higher forward voltage and have a noticeable color difference.
Use a functional alternative like SZYY0603G1, but redesign the current-limiting resistor and verify the new color and brightness are acceptable for the application.
The primary risks are electrical incompatibility due to higher forward voltage and a significant change in visual appearance (color, brightness).

YONGYU
A functional alternative in the same package, but with a higher forward voltage and different shade of green.
| Feature / factor | HSMG-C190 | SZYY0603G1 | FC-1608G1-520 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 metric) | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 (1608 Metric) — Package matches, enabling form-fit compatibility.; FC-1608G1-520: Package matches, enabling form-fit compatibility. | |
| Voltage | 2.2V | 2.6V - 3.1V | 3.0V | 2.6V - 3.1V / 3.0V — Higher Vf requires circuit review, likely a resistor change.; FC-1608G1-520: Higher Vf requires circuit review, likely a resistor change. | |
| Application | 170° | 120° | 140° | 120° / 140° — Viewing angle is narrower.; FC-1608G1-520: Viewing angle is narrower. | |
| Temperature | -40°C to +85°C | - | -30°C to +85°C | -30°C to +85°C — Reduced low-end operating temperature. |
The best alternatives are functional replacements like SZYY0603G1 or FC-1608G1-520. They share the 0603 package but have a higher forward voltage and a different shade of green, requiring circuit and visual review before use.