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Datasheet > 250.000MHZHC49/T/3W/3/20/30/SR/AT7
250.000MHZHC49/T/3W/3/20/30/SR/AT7 PDF预览

250.000MHZHC49/T/3W/3/20/30/SR/AT7

更新时间： 2024-10-31 08:16:47
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EUROQUARTZ /
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Series - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PACKAGE-3

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250.000MHZHC49/T/3W/3/20/30/SR/AT7 数据手册

  
THROUGH-HOLE CRYSTALS  
HC49 SERIES CRYSTALS  
DESCRIPTION  
OUTLINES & DIMENSIONS  
HC49 crystals are a long-established industry-standard part. Basic  
specification HC49 crystals provide the lowest cost crystal available but  
these crystals can also be manufactured to very close tolerances and low  
ESR values. Holder variants are HC49/ T (truncated), providing a lower  
height version, 3-wire versions where the crystal base and body can be  
earthed by a centre earth wire and HC50 which has larger diameter leads  
specifically for socket mounting.  
FEATURES  
·
·
·
·
·
·
Ve ry low cost crysta l  
Ava ila b le with close tole ra n ce s  
Fully custom isa b le sp e cifica tion  
Com p re h e n sive Euroq ua rtz stockh old in g  
In d ustry-sta n d a rd p a cka g e with op tion s  
Ve ry wid e fre q ue n cy ra n g e  
GENERAL SPECIFICATION  
Fre q ue n cy Ra n g e :  
1.0MHz to 250.0MHz  
from ± 3ppm to ± 50ppm  
from ± 3ppm to ± 100ppm  
8pF to 50pF, or Series  
± 3ppm max 1st year,  
± 1ppm max per year after  
1mW max  
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 :  
Ag e in g :  
Drive le ve l:  
Sta tic ca p a cita n ce (C0):  
Hold e r:  
7pF max  
Resistance-weld, hermetic seal  
Pa rt Num b e rs for Hold e r Va ria n ts *  
Hold e r Typ e  
Standard 2 lead:  
Hold e r De sig n a tion  
HC49  
Low height versions:  
Centre Earth Lead:  
Centre Earth Lead (Low):  
‘Plug-in’ for use in socket:  
HC49/ T (from 4.0MHz)  
HC49/ 3W  
HC49/ T/ 3W (from 4.0MHz)  
HC-50  
* HC49 crysta ls a re a lso a va ila b le for surfa ce -m oun t a p p lica tion s with  
form e d le a d s a n d fitte d with a clip . Se e ‘49MJ’ in th e surfa ce -m oun t  
crysta l se ction on Euroq ua rtz we b site ; www.e uroq ua rtz.co.uk  
OSCILLATION MODE & ESR  
Fre q ue n cy  
(MHz)  
Crysta l Cut/  
Oscilla tion Mod e  
ESR (m a x)  
(Oh m s)  
1.0 ~ 1.3  
SL Fund.  
AT Fund.  
AT Fund.  
AT Fund.  
AT Fund  
AT Fund.  
AT Fund.  
AT Fund.  
AT Fund.  
AT Fund.  
AT 3rd OT  
AT 5th OT  
AT 7th OT  
5000  
400  
200  
150  
120  
100  
50  
35  
25  
20  
40  
2.01 ~ 3.0  
3.01 ~ 3.2  
3.21 ~ 3.5  
3.51 ~ 3.9  
3.91 ~ 5.0  
5.01 ~ 7.0  
7.01 ~ 10.0  
10.0 ~ 30.0  
30.1 ~ 45  
24.0 ~ 100  
80.0 ~ 160  
110 ~ 250  
FREQUENCY STABILITY OVER TEMPERATURE  
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  
0° to + 50°  
ü
ü
X
X
X
X
ü
ü
ü
X
X
X
ü
ü
ü
X
X
X
ü
ü
ü
ü
X
X
ü
ü
ü
ü
ü
X
ü
ü
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°  
70  
120  
PART NUMBER GENERATION  
HC49 crystal part numbers are derived as follows:  
ü Indicates this stability is available over the stated operating temp. range  
Example: 16.000MHz HC49/ 30/ 50/ 10/ 30p F/ ATF  
Frequency/ Holder/ Calibration/ Temp. Stability/ Temp. Range/ Circuit  
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  
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与250.000MHZHC49/T/3W/3/20/30/SR/AT7相关器件

型号 品牌 获取价格 描述 数据表
250.000MHZHC49/T/3W/3/20/40/30PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/20/40/8PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/20/55/30PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/20/55/8PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/3/10/50PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/3/10/8PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/3/10/SR/AT7 EUROQUARTZ

获取价格

 		Series - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PACKA
250.000MHZHC49/T/3W/3/30/0/50PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/30/0/8PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC
250.000MHZHC49/T/3W/3/30/20/30PF/AT7 EUROQUARTZ

获取价格

 		Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PAC

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