Designed for easy installation and mounting, four new lead-free quartz crystals are suitable for use with real-time clocks and timers or as a clock source for microcomputers. Measuring 7 mm x 5 mm and 1.4-mm thick, the surface-mount Model SSP-T7-F operates at 32.768 kHz with a CL of 7 pF or 12.5 pF. The Model VT-200-F employs photolithographic technology and features a compact tubular package. Standard specs include an operating frequency of 32.768 kHz and a CL of 6 pF or 12.5 pF. The component measures 2 mm x 6 mm. The Model SP-T2A-F features a plastic molded package measuring 8.7 mm x 3.7 mm x 2.5 mm that incorporates a tubular type quartz crystal. It operates at 32.768 kHz with a CL of 6 pF or 12.5 pF. The surface-mount Model NC-T3 measures 3.2 mm x 1.2 mm x 1.1 mm and operates at 32.768 kHz with a CL of 7 pF or 12.5 pF. Prices for the VT-200-F, SP-T2A-F, SSP-T7-F, and NC-T3 are $0.16, $0.45, $0.60, and $1.20 each/10,000, respectively. For more details, contact Jim Schlumpberger at SEIKO INSTRUMENTS USA INC., Torrance, CA. (310) 517-7884.
