THROUGH-HOLE CRYSTALS
HC35 CRYSTALS (TO5)
OUTLINES AND DIMENSIONS
DESCRIPTION
HC35 crystals are used in communications, aerospace and defence
applications The crystal blank used in HC35 packages is capable of being
manufactured to close tolerances and is readily produced with custom
frequencies and specifications.
FEATURES
Wid e fre q ue n cy ra n g e
Sm a ll p rofile , low-m a ss p a cka g e
Close tole ra n ce s e a sily a ch ie ve d
Fully custom isa b le sp e cifica tion
In d ustry-sta n d a rd p a cka g e
GENERAL SPECIFICATION
Fre q ue n cy Ra n g e :
Oscilla tion Mod e :
8.0MHz to 250MHz
See table
Ca lib ra tion Tole ra n ce a t 25º C:
Fre q ue n cy sta b ility ove r te m p :
Op e ra tin g Te m p e ra ture Ra n g e :
Sh un t Ca p a cita n ce (C0):
Loa d Ca p a cita n ce (CL):
from ± 3ppm
from ± 3ppm (see table)
From 0°~ + 50° to -55°~ + 125°C
4pF maximum (See table)
Series or from 8pF to 32pF
(Customer specified CL)
See table
FREQUENCY STABILITY OVER TEMPERATURE
Te m p e ra ture Sta b ility (p p m )
Op e ra tin g
Motion a l Ca p a cita n ce (C1):
Effe ctive Se rie s Re sista n ce :
Ag e in g :
See table
Te m p . °C
± 3 ± 5 ± 7 ± 10 ± 20 ± 25 ± 30 ± 50
± 2ppm max 1st year,
± 1ppm typical per year after
100uW maximum
0° to + 50°
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X
ü
ü
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ü
ü
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Drive le ve l:
Sh ock:
Vib ra tion :
Hold e r:
-10° to + 60°
-20° to + 70°
-30° to + 80°
-40° to + 90°
-55° to + 105°
-55° to + 125°
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100g/ 6ms
10g/ 1.5mm, 10~ 500Hz, 3 axis
Resistance-weld, hermetic seal
Bulk pack
X
X
X
X
X
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Sup p ly form a t:
X
X
X
X
X
X
X
X
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OSCILLATION MODE, ESR & SHUNT CAPACITANCE
X
X
X
X
Fre q ue n cy
(MHz)
Crysta l Cut ESR (m a x)
Osc. Mod e
C0
(p F)
(Oh m s)
8.0~ 9.9
AT Fund.
AT Fund.
AT Fund.
80
60
40
25
40
50
70
120
2.5
3.0
4.0
4.0
4.0
4.0
4.0
4.0
10.0~ 10.99
11.0~ 12.9
13.0~ 45.0
30.0~ 50.0
50.1~ 100.0
80.0~ 200
150~ 250
AT Fund.
PART NUMBER GENERATION
AT 3rd OT
AT 5th OT
AT 7th OT
AT 9th OT
HC35 crystal part numbers are derived as follows:
Example:
16.000MHz HC35/ 10/ 20/ 10/ 30p F/ ATF
Frequency
Package = HC35
MOTIONAL CAPACITANCE (C1)
Calibration Tolerance at 25°C ± ppm
Temperature Stability ± ppm
Operating Temperature Range
lower figure of temp. range
e.g. ‘10’ = -10°~ + 60°C
‘20’ = -20°~ + 70°C
Circuit Condition
(CL in pF or SERIES)
Mode
- ATF (AT-Cut, Fundamental)
- AT3 (AT-Cut, 3rd overtone)
- AT5 (AT-Cut, 5th overtone)
- AT7 (AT-Cut, 7th overtone)
- AT9 (AT-Cut, 9th overtone)
EUROQUARTZ LIMITED Bla ckn e ll La n e CREWKERNE Som e rse t UK TA18 7HE
Te l: + 44 1460 230000 Fa x: + 44 1460 230001 e m a il: in fo@e uroq ua rtz.co.uk we b : www.e uroq ua rtz.co.uk