1. GZ1608D800CTF Substitution Conclusion The GZ1608D800CTF is a technically direct replacement for the original MLB05-800-RC, as it shares identical impedance (80 Ω at 100 MHz), DC resistance (150 mΩ), package size (0603), and height, ensuring full compatibility in both electrical performance and physical mounting. Differences lie in the current rating (400 mA for the GZ1608D800CTF versus 300 mA for the MLB05-800-RC) and the filter type (the GZ1608D800CTF is specified as a signal-line filter, whereas the MLB05-800-RC is not explicitly categorized). The new part can handle higher DC current, offering a wider safety margin for applications with elevated current demands. Its signal-line-specific design may also provide enhanced high‑frequency noise suppression. However, attention should be paid to potential supply‑chain variations due to the manufacturer change.