EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
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.
OUTLINES & DIMENSIONS
FEATURES
High temperature operation up to 200°C
High schock resistance
Hermetically sealed ceramic package
HIGH TEMPERATURE CRYSTALS
High Temperature/Low Frequency
10kHz to 600kHz
CX1VHT/
CX1HHT CX4VHT CX9VHT
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
Turnover
Temperature
Drive Level
CX1VHT 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
CX1HHT 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.
SPECIFICATIONS TABLE
10kHz ~ 600kHz 30kHz ~ 250kHz 32kHz ~ 160kHz
DIMENSIONS
A 8.38 5.33 4.32
B 3.94 2.16 1.73
C (SM1) 1.78 1.27 0.97
C (SM5) 1.90 1.35 1.02
D 1.40 1.16 0.97
E 1.78 0.51
F 1.78 0.64
CX1VHT/
CX1HHT CX4VHT CX9VHT
Dim.
APPLICATIONS
Downhole instrumentation
Rotary shaft sensors
Underground boring tools
Suggested Soldering pattern
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
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 - S - SM5 - 32.768K, 30 / I
'S' if special,
custom design.
Otherwise leave
blank
Terminations
SM1 = Gold plated
SM5 = Solder Dipped
Lead free
Frequency
K = kHz
Calibration
Tolerance
@25°C
(in ppm)
Temp. Range
C = -10° ~ +70°C
I = -40° ~ +85°C
M = -55° ~ +125°C
S = Customer specified
CX1V
CX1H
CX4V
CX9V
HT = High
Temperature
FREQUENCY SHIFT vs. TIME
Frequency shift after:
Epoxy
Type
Epoxy A 150°C 1.97ppm 2.51ppm 3.30ppm 3.94ppm
Epoxy B 150°C 3.94ppm 4.91ppm 6.32ppm 7.46ppm
Epoxy A 175°C 4.80ppm 5.66ppm 6.94ppm 7.99ppm
Epoxy B 175°C 4.13ppm 5.06ppm 6.41ppm 7.52ppm
Epoxy A 200°C 29.40ppm 36.82ppm 47.61ppm 56.46ppm
Epoxy B 200°C 23.31ppm 30.59ppm 41.63ppm 50.89ppm
Temp.
1,008 hrs
(Actual Data)
1,824 hrs
(Actual Data)
4,320 hrs
(Projected Data)
8,760 hrs
(Projected Data)
HIGH TEMPERATURE CRYSTALS
High Temperature/Low Frequency
10kHz to 600kHz
170~249.9 250~600
±30ppm ±50ppm ±100ppm ±200ppm
±100ppm ±100ppm ±200ppm ±500ppm
±1000ppm ±1000ppm ±2000ppm ±5000ppm
10~74.9
75~169.9
STANDARD CALIBRATION TOLERANCE
Frequency Range (kHz)
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
over Temperature**:
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
GENERAL SPECIFICATION
* 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
f(T)-f(To)
f(To) =k(T-To)2
