The CBLK-300-3 coaxial DC block from Crystek has an operating temperature range of -55°C to +90°. This DC block is an SMA module with male and female connectors and features a flat frequency response and low insertion loss. With a frequency range of 300 kHz to 3 GHz, the CBLK-300-3 DC block provides excellent return loss through 3 GHz.