THROUGH-HOLE CRYSTALS
HC51 SERIES CRYSTALS
DESCRIPTION
OUTLINES & DIMENSIONS
HC51 crystals are long-established standard crystals in the industry. Basic
specification HC51 crystals provide low frequencies at relatively low cost
and have the advantage of low ESR values. A holder variant is the HC48
which has larger diameter leads specifically for socket mounting.
FEATURES
·
·
·
·
·
Low fre q ue n cie s with low ESR va lue s.
Ava ila b le with close tole ra n ce s
Fully custom isa b le sp e cifica tion
In d ustry-sta n d a rd p a cka g e with op tion s
Wid e fre q ue n cy ra n g e
GENERAL SPECIFICATION
Fre q ue n cy Ra n g e :
100kHz to 70MHz
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 :
Loa d Ca p a cita n ce :
from ± 10ppm to ± 100ppm
from ± 10ppm to ± 100ppm
8pF to 50pF, or Series
± 3ppm max 1st year,
± 1ppm max per year after
1mW max
Ag e in g :
Drive le ve l:
Sta tic ca p a cita n ce (C0):
Hold e r:
9pF max
Resistance-weld, hermetic seal
FREQUENCY STABILITY OVER TEMPERATURE
Pa rt Num b e rs for Hold e r Va ria n ts *
Te m p e ra ture Sta b ility (p p m )
Op e ra tin g
Te m p . °C
± 3
± 5
± 7.5 ± 10 ± 15 ± 20 ± 30
Hold e r Typ e
Hold e r De sig n a tion
Standard 2 lead:
‘Plug-in’ for use in socket:
HC51
HC48
0° to + 50°
X
X
X
X
X
X
X
X
X
X
X
X
ü
ü
ü
ü
ü
ü
ü
ü
ü
ü
-10° to + 60°
-20° to + 70°
-30° to + 80°
-40° to + 90°
-55° to + 105°
X
X
X
X
X
X
X
X
X
X
ü
ü
X
X
X
X
ü
ü
OSCILLATION MODE & ESR
X
X
Fre q ue n cy
(MHz)
Crysta l Cut/
Oscilla tion Mod e
ESR (m a x)
(Oh m s)
100kHz~ 890kHz SL Fund.
890kHz~ 1.8432 AT Fund.
3000
800
350
200
100
40
20
20
20
ü Indicates this stability is available over the stated operating temp. range
1.8432~ 2.5
2.5~ 3.5
3.5~ 7.0
AT Fund.
AT Fund.
AT Fund
7.0~ 12.0
12.0~ 24.0
9.0~ 30.0
15.0~ 70.0
AT Fund.
AT Fund.
AT 3rd OT
AT 5th OT
CUSTOM PRODUCTION
Euroquartz maintain stocks of certain frequency and specificationHC51
and HC48 crystals. Custom parts are manufactured to order on short
lead times. Contact Euroquartz technical sales with your requirement.
PART NUMBER GENERATION
HC51 crystal part numbers are derived as follows:
Example: 1.000MHz HC51/ 50/ 100/ 10/ 30p F/ ATF
Frequency
Holder (HC51 or HC48)
Calibration Tolerance (± ppm)
Temperature Stability (± ppm)
Temperature Range (± ppm)
Circuit Condition
Crystal Cut and Mode
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