EEWORLDEEWORLDEEWORLD

Part Number

Search

250.000MHZHC49/T/50/10/20/30PF/AT7

Description
Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PACKAGE-2
CategoryPassive components    Crystal/resonator   
File Size156KB,1 Pages
ManufacturerEuroquartz
Websitehttp://www.euroquartz.co.uk/
Environmental Compliance
Download Datasheet Parametric View All

250.000MHZHC49/T/50/10/20/30PF/AT7 Overview

Parallel - 7Th Overtone Quartz Crystal, 250MHz Nom, RESISTANCE WELDED, HERMATIC SEALED PACKAGE-2

250.000MHZHC49/T/50/10/20/30PF/AT7 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
package instructionRESISTANCE WELDED, HERMATIC SEALED PACKAGE-2
Reach Compliance Codecompliant
Ageing3 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - 7TH OVERTONE
Drive level1000 µW
frequency stability0.001%
frequency tolerance50 ppm
load capacitance30 pF
Installation featuresTHROUGH HOLE MOUNT
Nominal operating frequency250 MHz
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
physical sizeL11.5XB4.9XH11.2 (mm)/L0.453XB0.193XH0.441 (inch)
Series resistance120 Ω
surface mountNO
Base Number Matches1
THROUGH-HOLE CRYSTALS
HC49 SERIES CRYSTALS
DESCRIPTION
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.
OUTLINES & DIMENSIONS
FEATURES
·
·
·
·
·
·
Very low cost crystal
Available with close tolerances
Fully customisable specification
Comprehensive Euroquartz stockholding
Industry-standard package with options
Very wide frequency range
GENERAL SPECIFICATION
Frequency Range:
Calibration Tolerance at 25ºC:
Frequency stability over temp:
Load Capacitance:
Ageing:
Drive level:
Static capacitance (C0):
Holder:
Part Numbers for Holder Variants *
Holder Type
Standard 2 lead:
Low height versions:
Centre Earth Lead:
Centre Earth Lead (Low):
‘Plug-in’ for use in socket:
Holder Designation
HC49
HC49/T (from 4.0MHz)
HC49/3W
HC49/T/3W (from 4.0MHz)
HC-50
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
7pF max
Resistance-weld, hermetic seal
* HC49 crystals are also available for surface-mount applications with
formed leads and fitted with a clip. See ‘49MJ’ in the surface-mount
crystal section on Euroquartz website; www.euroquartz.co.uk
OSCILLATION MODE & ESR
Frequency
(MHz)
1.0 ~ 1.3
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
Crystal Cut/
Oscillation Mode
SL Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT Fund.
AT 3
rd
OT
AT 5th OT
AT 7th OT
ESR (max)
(Ohms)
5000
400
200
150
120
100
50
35
25
20
40
70
120
FREQUENCY STABILITY OVER TEMPERATURE
Operating
Temp. °C
0° to +50°
-10° to +60°
-20° to +70°
-30° to +80°
-40° to +90°
-55° to +105°
Temperature Stability (ppm)
±3
ü
ü
X
X
X
X
±5
ü
ü
ü
X
X
X
±7.5
ü
ü
ü
X
X
X
±10
ü
ü
ü
ü
X
X
±15
ü
ü
ü
ü
ü
X
±20
ü
ü
ü
ü
ü
ü
±30
ü
ü
ü
ü
ü
ü
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 HC49/30/50/10/30pF/ATF
Frequency/Holder/Calibration/Temp. Stability/ Temp. Range/Circuit
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk
My board only has a red power light. Can anyone tell me how to fix it?
The board is as shown in the picture, please give me some advice:victory:...
mingxinkeji Making friends through disassembly
Problems encountered when using the new version of BlueNRG-Mesh firmware
, sans-serif][size=10.5pt][align=left][color=rgb(0, 0, 0)][font=Calibri, sans-serif][size=10.5pt][/size][/font][/color][/align][align=left][color=rgb(0, 0, 0)][font=Calibri, sans-serif][size=10.5pt][/...
littleshrimp ST - Low Power RF
PSoC 6 BLE POINTEER KIT related information
Kit bottom board informationKit top board E-INK informationCySmart mobile APP, APK official website needs to log in to download, which is more troublesomeSerial port line graph software used in the cu...
littleshrimp MCU
About the deep Chinese version of Protel99SESP6HH2_TSG
After installing the Protel99SESP6HH2_TSG deep Chinese version, the schematic component diagram cannot be saved after editing, and the original component diagram will be deleted and become empty after...
emaildai78 PCB Design
Design paper of single chip microcomputer combustible gas alarm
If anyone has a design paper on a single-chip combustible gas alarm, please send it to me. I would be very grateful! My email address is [email=dunqu.deyi@163.com]dunqu.deyi@163.com[/email] Thank you ...
723575125 MCU
A lot of resource sharing (continuously updated!)
[color=#000066][url=https://home.eeworld.com.cn/my/space.php?uid=45925][color=#000066]yayasoso[/color][/url][/color]'s blog [url=https://home.eeworld.com.cn/my/space.php?uid=45925]https://home.eeworld...
亲善大使 MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1331  2309  1675  1410  567  27  47  34  29  12 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号