CC7A-T1A AT Crystal 24 MHz – 30 MHz DIMENSIONS Package: Recommended Solder Pad: 3,2 1,5 1,0 1,8 0,7 max.0,90 1,5 0,7 1,0 All dimensions in mm typical 100% leadfree, RoHS - compliant Suitable for implantable medical applications Small SMT ceramic package Package height 0.9 mm Fundamental mode frequencies SMD-package in Tape and Reel Ind. and Ext. temperature ranges High stability, low ageing High shock and vibration resistance ELECTRICAL CHARACTERISTICS AT 25oC: DESCRIPTION: This SMD ceramic package has been specially designed for small, implantable medical, industrial, telecom and electronic applications. All frequencies are generated in fundamental mode. The crystals are supplied in special trays (200 crystals per tray). For pick-and-place equipment, the parts are available in 12 mm tapes: 7” (178 mm) reel with 3’000 crystals 13” (330 mm) reel with 14’000 crystals Frequency Range FL 24–30 MHz Load capacitance 1) CL 20.0 pF Frequency tolerance at 25°C 2) ΔF/F +/-50 ppm Frequency versus temperature B: –40°C to + 85°C C: –55°C to +125°C 3) ΔF/F0 +/-50 +/-100 ppm Drive level typ/max P 100/250 μW Insulation resistance min. Ri 500 MΩ 1) Other load capacitances on request; e.g. CL: 3.0 pF / 9.0 pF / 16.0 pF 2) Tighter and wider frequency tolerances on request; e.g. +/-20 ppm 3) Tighter thermal stability on request; e.g. +/-10 ppm from 0°C to +55°C Frequency [MHz] 24 to < 30 Rs[Ω] typ/max C1 [fF] typ/max Co [pF] typ 60/100 1/3 0.7 Version 1.2/04.2009 STANDARD FREQUENCIES: Frequency MHz 24.0000 25.0000 26.0000 26.5000 Other frequencies between 24 MHz and 30 MHz on request ENVIRONMENTAL CHARACTERISTICS: Storage temp. range –55 to +125°C B - Industrial operating temp. range –40 to +85°C C - Extended operating temp. range TERMINATIONS AND PROCESSING: Max. Dev. [ppm] Conditions –55 to +125°C Shock resistance ΔF/F 5000 g, 0.3 ms, ½ sine +/-5 Vibration resistance ΔF/F +/-5 20 g / 10–2000 Hz Type Termination Processing CC1A-T1A For SMD mounting Au flashed pads Reflow soldering 260°C / 20 s max. CC1A-T3A For SMD mounting Sn/Ag/Cu plated Reflow soldering 260°C / 20 s max. PART NUMBER/ ORDERING INFORMATION EXAMPLE: C C 7 A - T 1 A 26.0 MHz 20.0 pF +/-50 ppm Frequency FL Crystal package C = Crystal in ceramic package B Frequency tolerance Load capacitance CL Operating Temperature Range B = -40°C to +85°C Industrial C = -55°C to +125°C Extended S = custom specification Package lid C = Ceramic lid Package size 1 = 8.0 x 3.7 x 1.75 mm Package pad form A = Pads on both ends Blank A = AT Pad plating 1 = Au flashed pads 3 = Sn/Ag/Cu plated Package type T = For SMD mounting All specifications subject to change without notice. SCREENING: 04.09 Medical, Automotive and Avionics testing available on request Micro Crystal AG Mühlestrasse 14 CH-2540 Grenchen Switzerland Tel. +41 32 655 82 82 Fax +41 32 655 82 83 [email protected] www.microcrystal.com Version 1.2/04.2009