EURO QUARTZ HIGH TEMPERATURE CRYSTALS High Temperature/High Frequency FEATURES 6 MHz to 250MHz CX9HT CX4HT CX1HT High temperature operation up to 200°C High schock resistance Hermetically sealed ceramic package 8MHz ~ 250MHz 14MHz ~ 250MHz 14MHz ~ 250MHz DESCRIPTION The 'HT' range of crystals are designed for applications subjected to high operating temperatures. The CX1HT, CX4HT and CX9HT crystals operate up to 200°C and feature an expected life in excess of 1000 hours at these temperatures. The frequency range is: CX1HT: 8.0MHz to 250MHz CX4VHT: 14MHz to 250MHz CX9VHT: 14MHz to 250MHz. DIMENSIONS APPLICATIONS Downhole instrumentation Rotary shaft sensors Underground boring tools Dim. A B C (SM1) C (SM5) D E F CX1HT CX4HT CX9HT 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 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/High Frequency SPECIFICATION 6 MHz to 250MHz CRYSTAL EQUIVALENT CIRCUIT Specifications stated are typical at 25°C unless otherwise indicated. Specifications may change without notice. Frequency Range: Calibration Tolerance1: Operating Temperature Range: Temperature Stability2: See specifications table below ±100ppm or tighter as required -55° to +200°C ±150ppm -55° to +150°C ±175ppm -55°C to +175°C ±200ppm -55° to +200°C ±5ppm @25°C Ageing First Year: Shock, Survival3: CX1HT: CX4HT: CX9HT: Vibration, Survival3: 1,000g, 1ms, ½ sine 5,000g, 0.3ms, ½ sine 5,000g, 0.3ms, ½ sine 20g rms, 10~2000Hz R1 Motional Resistance C1 Motional Capacitance L1 Motional Inductance C0 Shunt Capacitance PACKAGING OPTIONS CX_HT crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (EIA 418). 1. Tighter frequency calibration available. Contact Euroquartz sales. 2. Does not include calibration tolerance. The characteristics of frequency stability over temperature follow that of the thicknessshear mode. 3. Higher shock and vibration available. CONVENTIONAL CMOS PIERCE OSCILLATOR CIRCUIT ABSOLUTE MAXIMUM RATINGS Storage Temperature: Maximum Process Temperature: -55° to +200°C 260°C for 20 seconds SPECIFICATIONS TABLE Frequency Range Motional Resistance R1 @ 25°C Motional Capacitance C1 @ 25°C Shunt Capacitance C0 @ 25°C Quality Factor Q @ 25°C Load Capacitance CL Drive Level 5.5fF @ 10.0MHz 6.2fF @ 32.0MHz 2.2pF @ 10.0MHz 2.3pF @ 32.0MHz 100k @ 10.0MHz 30k @ 32.0MHz 20pF for f <50MHz 10pF for f >50MHz 500µW max. for f <50MHz 200µW max. for f >50MHz CX1HT 8.0MHz to 250MHz 30Ω @ 10MHz 25Ω @ 32MHz CX4HT 14.0MHz to 250MHz 75Ω @ 10MHz 30Ω @ 32MHz 1.5fF @ 10.0MHz 2.5fF @ 32.0MHz 0.9pF @ 10.0MHz 1.1pF @ 32.0MHz 90k @ 10.0MHz 70k @ 32.0MHz 10pF 200µW max. for f <50MHz 100µW max. for f >50MHz 14.0MHz to 250MHz 30Ω @ 10MHz 30Ω @ 32MHz 1.8fF @ 10.0MHz 2.1fF @ 32.0MHz 1.0pF @ 10.0MHz 1.0pF @ 32.0MHz 120k @ 10.0MHz 60k @ 32.0MHz 10pF 200µW max. for f <50MHz 100µW max. for f >50MHz CX9HT HOW TO ORDER CX1HT, CX4HT and CX9HT CRYSTALS CX4HT - S CX1HT CX4HT CX9HT - 'S' if special, custom design. Otherwise leave blank SM1 - Terminations SM1 = Gold plated * SM2 = Solder plated SM3 = Solder dipped SM4 = Solder plated * SM5 = Solder dipped * * = Lead free 20.0M – Frequency M = MHz Calibration Tolerance @25°C (in ppm) / – Frequency Stability over Temp. Range (in ppm) / 200 Total Frequency Tolerance (in ppm) / H Temp. Range H = 25° to 200°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