View bf1108 1108 datasheet:

DISCRETE SEMICONDUCTORS DATA SHEET BF1108; BF1108R Silicon RF switches Product specification 1999 Nov 18 Supersedes data of 1999 Aug 19 Philips Semiconductors Product specification Silicon RF switches BF1108; BF1108R FEATURES • Specially designed for low loss RF switching up to 1 GHz. handbook, 2 columns 43 APPLICATIONS • Various RF switching applications such as: 12 – Passive loop through for VCR tuner Top view MSB014 – Transceiver switching. Marking code: NGp. DESCRIPTION Fig.1 Simplified outline (SOT143B). These switches are a combination of a depletion type field-effect transistor and a bandswitching diode in an SOT143B (BF1108) or SOT143R (BF1108R) package. The low loss and high isolation capabilities of these devices provide excellent RF switching functions