The TA1743D with Smd SAW Filters ROHS is a surface-mount low pass filter manufactured by Tai-Saw Technology. It is a high-frequency, low-loss filter that allows the signal to pass through it at frequencies up to 3 GHz. It offers an isolation level of 40 dB, a passband insertion loss of less than 2 dB, and a sharp roll-off of 20 dB per decade beyond its cut-off frequency. The TA1743D is also RoHS compliant, making it a suitable choice for use in green products. It is a key component in radio frequency applications and can also be used in GPS receivers, WLAN receivers, and other radio communication equipment.