Low Profile Crystal HC49-4H & HC49-3H Specifications HC49-4H: 3.5mm maximum height HC49-3H: 2.5mm maximum height Product Parameters HC49-4H HC49-4H HC49-3H 1.0MHz 3.2768 ~ 90.0MHz 3.579 ~ 90.0MHz Package: 2.50 (max) 3.50* (max) 0.43Ø Frequency range: 0.43Ø 12.00 (min) 4.88 11.05 11.05 HC49-4H HC49-3H Calibration tolerance: 2 3 5 specify 4.65 Temperature stability: ±30ppm ±50ppm ±100ppm Other values (±10ppm ~ ±100ppm) 3 5 C specify Operating temperature range: -10 to +60°C -20 to +70°C -30 to +80°C -40 to +85°C Other values 1 2 3 4 specify B D E F J specify *1.0MHz HC49-4H height is 4.00 (max) Features Option Code 12.00 (min) 4.88 4.65 HC49-3H Industry standard HC49 footprint Fundamental mode available up to 50.0MHz ±20ppm ±30ppm ±50ppm Other values (±10ppm ~ ±100ppm) Circuit condition: 12pF 16pF 18pF 20pF 30pF Other values Oscillation mode: Fundamental 3rd overtone Equivalent series resistance (max): 3000Ω (1.0MHz) 200Ω (>3.2 ~ 3.5MHz) 150Ω (>3.5 ~ 4.0MHz) 120Ω (>4.0 ~ 4.4MHz) 100Ω (>4.4 ~ 7.0MHz) 70Ω (>7.0 ~ 10.0MHz) 50Ω (>10.0 ~ 50.0MHz, fund) 100Ω (>25.0 ~ 90.0MHz, 3rd OT) Static capacitance (C0): 7pF max ±3ppm max first year Comprehensive stock of standard frequencies Low profile for close board stacking Ageing: Test drive level: 100μW F 3 Standard. Optional - Please specify required code(s) when ordering Ordering Information Product name + frequency + specification code eg: HC49-4H/351DF 18.4320MHz 30/50/10/16-F HC49-3H/232S3 48.0MHz 20/30/20/S-3 Insulating washers and mounting clips available. See our website for details. Available on T&R - 1k pcs per reel. Centre ground lead available on request. Refer to our website for T&R and soldering details. IMPORTANT: Not normally available in small quantities of non-standard frequencies. Please check with us before ordering. Tel: +44 1460 256 100 01 03 May Oct 2011 1998 Fax: +44 1460 256 101 E-mail: [email protected] Web: www.golledge.com