EURO QUARTZ HIGH TEMPERATURE CRYSTALS High Temperature/Low Frequency 10kHz to 600kHz CX1VHT/ CX1HHT FEATURES CX9VHT CX4VHT High temperature operation up to 200°C High schock resistance Hermetically sealed ceramic package 30kHz ~ 250kHz 10kHz ~ 600kHz 32kHz ~ 160kHz DESCRIPTION The 'HT' range of crystals are designed for applications subjected to high operating temperatures. The CX1VHT/CX1HHT, CX4VHT and CX9VHT crystals operate up to 200°C and feature an expected life in excess of 1000 hours at these temperatures. The frequency range is: CX1VHT and CX1HHT: 10kHz to 600kHz CX4VHT: 30kHz to 250kHz CX9VHT: 32kHz to 160kHz. DIMENSIONS APPLICATIONS Dim. Downhole instrumentation Rotary shaft sensors Underground boring tools A B C (SM1) C (SM5) D E F CX1VHT/ CX1HHT CX4VHT CX9VHT 8.38 3.94 1.78 1.90 1.40 1.78 1.78 5.33 2.16 1.27 1.35 1.16 0.51 0.64 4.32 1.73 0.97 1.02 0.97 OUTLINES & DIMENSIONS Suggested Soldering pattern SPECIFICATIONS TABLE Frequency Range CX1VHT Motional Resistance R1 @ 25°C Motional Capacitance C1 @ 25°C Shunt Capacitance C0 @ 25°C Quality Factor Q @ 25°C Load Capacitance CL Turnover Temperature Drive Level 10kHz to 600kHz 30kΩ @ 32.768kHz 10kΩ @ 100kHz 2.3fF @ 32.768kHz 1.0fF @ 100kHz 2.0pF max. 68k @ 32.768kHz 140k @ 100kHz 9pF @ 32.768kHz 8pF @ 100kHz 21°C @ 32.768kHz 9°C @ 100kHz 0.5µW max. 10~24.9kHz 1.0µW max. 25~600kHz 10kHz to 600kHz 140kΩ @ 32.768kHz 47kΩ @ 100kHz 2.3fF @ 32.768kHz 1.0fF @ 100kHz 2.0pF max. 18k @ 32.768kHz 31k @ 100kHz 9pF 21°C @ 32.768kHz 10°C @ 100kHz 0.5µW max. 10~24.9kHz 1.0µW max. 25~600kHz CX4VHT 30kHz to 250kHz 50kΩ @ 32.768kHz 18kΩ @ 100kHz 2.3fF @ 32.768kHz 1.0fF @ 100kHz 2.3pF @ 32.768kHz 1.07pF @ 100kHz 40k @ 32.768kHz 85k @ 100kHz 9pF @ 32.768kHz 8pF @ 100kHz 25°C @ 32.768kHz 10°C @ 100kHz 0.5µW max. CX9VHT 32kHz to 160kHz 70kΩ @ 32.768kHz 19kΩ @ 100kHz 2.3fF @ 32.768kHz 1.0fF @ 100kHz 2.2pF @ 32.768kHz 0.84pF @ 100kHz 27k @ 32.768kHz 80k @ 100kHz 9pF @ 32.768kHz 5pF @ 100kHz 20°C @ 32.768kHz 16°C @ 100kHz 0.5µW max. CX1HHT EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk EURO QUARTZ HIGH TEMPERATURE CRYSTALS High Temperature/Low Frequency GENERAL SPECIFICATION 10kHz to 600kHz STANDARD CALIBRATION TOLERANCE Specifications stated are typical at 25°C unless otherwise indicated. Specifications may change without notice. Frequency Range: see specifications table Calibration Tolerance*: see table Operating Temperature Range: -55°C to +200°C Frequency Stability f(T)-f(To) over Temperature**: =k(T-To)2 f(To) Temperature Coefficient (k): -0.035ppm/°C2 Ageing, first year: 5ppm max. Shock, survival***: CX1VHT: 1,000g, 1ms, ½ sine CX1HHT: 1,000g, 1ms, ½ sine CX4VHT: 5,000g, 0.3ms, ½ sine CX9VHT: 5,000g, 0.3ms, ½ sine Vibration, survival: 20g rms, 10~2000Hz * ** Tighter frequency calibration is available. Where f(T) = frequency at temperature T T = Temperature To = Turnover temperature fo = frequency at turnover temperature To *** Higher shock and vibration survival is available Frequency Range (kHz) 10~74.9 75~169.9 170~249.9 ±30ppm ±50ppm ±100ppm ±100ppm ±1000ppm ±1000ppm ±100ppm ±200ppm ±2000ppm 250~600 ±200ppm ±500ppm ±5000ppm FREQUENCY SHIFT vs. TIME Epoxy Type Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy A B A B A B Frequency shift after: Temp. 150°C 150°C 175°C 175°C 200°C 200°C 1,008 hrs 1,824 hrs 4,320 hrs 8,760 hrs (Actual Data) (Actual Data) (Projected Data) (Projected Data) 1.97ppm 3.94ppm 4.80ppm 4.13ppm 29.40ppm 23.31ppm 2.51ppm 4.91ppm 5.66ppm 5.06ppm 36.82ppm 30.59ppm 3.30ppm 6.32ppm 6.94ppm 6.41ppm 47.61ppm 41.63ppm 3.94ppm 7.46ppm 7.99ppm 7.52ppm 56.46ppm 50.89ppm PACKAGING OPTIONS Tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (EIA 418). HOW TO ORDER CX1VHT, CX1HHT, CX4VHT and CX9VHT CRYSTALS CX4V - HT CX1V CX1H CX4V CX9V HT = High Temperature - S 'S' if special, custom design. Otherwise leave blank - SM5 - Terminations SM1 = Gold plated SM5 = Solder Dipped Lead free 32.768K, 30 Frequency K = kHz / Calibration Tolerance @25°C (in ppm) I Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk