The present invention provides surface acoustic wave devices which do not require a balanced-to-unbalanced transformer circuit regardless of the type of the peripheral circuits of the balanced type surface acoustic wave filter, i.e. a balanced type device or an unbalanced type. A transmitting interdigital transducer 1 and a receiving interdigital transducer 2 are formed on a substrate comprising 41 ⁰ Y cut-X propagation lithium niobate. A balanced type surface acoustic wave filter 3 is formed on a substrate comprising 36 ⁰ Y cut-X propagation lithium tantalate. The balanced type surface acoustic wave filter 3 comprises two series-arm surface acoustic wave resonators 6 and two crossed-arm surface acoustic wave resonators 7 connected in a lattice. The substrate on which the transmitting interdigital transducer 1 and the receiving interdigital transducer 2 are formed and the substrate on which the balanced type surface acoustic wave filter 3 is formed are located in a ceramic package. One of the input terminals 4 of the transmitting interdigital transducer 1 is grounded. The output terminals 5 of the receiving interdigital transducer 2 are connected to the input terminals 8 of the balanced type surface acoustic wave filter 3.