YSR315G211 Fixed Frequencies: 315MHz Dimensions: 2.0 x 1.6 mm (5035) Package: 10000 pieces/Reel Promise: Lifetime warranty and technical support Support: Free samples available ROHS STATUS: Compliant Parameters: 1. The smallest SMD SAW Resonator, 4 pin type 2. Ceramic SAW Resonator with reliable frequency stability 3. Normal temperature: -40~+85℃ 4. Applications: Wireless remote control, Alarm 5. Applications: Consumer electroincs,communications