Crystal resonator: hc-49u, hc-49s, hc-49smd, um-1, um-5, 7x5mm smd, 6x3.5mm smd, 5x3.2mm smd( competitive products), 4x2.5mm and 3.2x2.5mm smd crystal oscillator: full size, half size, 7x5mm smd and 5x3.2mm smd package, tuning fork: thru hole (3x8mm, 2x6mm, ) smd tcxo (the tightest spec we can do is +/-0.5ppm over -50..+105c).
