EEWORLDEEWORLDEEWORLD

Part Number

Search

QESM49H2310JM103244.990MHZ

Description
Parallel - 3Rd Overtone Quartz Crystal, 44.99MHz Nom, HC49, SMD, 2 PIN
CategoryPassive components    Crystal/resonator   
File Size3MB,5 Pages
ManufacturerRakon Limited
Download Datasheet Parametric View All

QESM49H2310JM103244.990MHZ Overview

Parallel - 3Rd Overtone Quartz Crystal, 44.99MHz Nom, HC49, SMD, 2 PIN

QESM49H2310JM103244.990MHZ Parametric

Parameter NameAttribute value
Objectid145207549492
package instructionHC49, SMD, 2 PIN
Reach Compliance Codeunknown
Other featuresAT-CUT
Ageing3 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - 3RD OVERTONE
Drive level100 µW
frequency stability0.001%
frequency tolerance10 ppm
load capacitance32 pF
Installation featuresSURFACE MOUNT
Nominal operating frequency44.99 MHz
Maximum operating temperature50 °C
Minimum operating temperature-10 °C
physical size11.4mm x 4.7mm x 4.0mm
Series resistance80 Ω
surface mountYES

QESM49H2310JM103244.990MHZ Preview

FREQUENCY
QESM49H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (Rev-G)
Electrical Characteristics .....................................................P01
ESR vs. frequency range and Mode of vibration .................P01
Mechanical Characteristics ..................................................P01
Ordering Information ............................................................P02
Suggested Reflow Soldering Profile .....................................P03
Tape Drawing ......................................................................P03
Reel Drawing .......................................................................P04
www.temexpress.com
Temexpress is
a brand name
of
Frequency
QESM49H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-G)
May 23 , 2016
rd
Electrical Characteristics
Electrical Parameters
Frequency range
(see Note 1)
Temperature Stability
Operating Temperature Range
Storage temperature range
Shunt capacitance C
0
Load capacitance
Drive level
Ageing (First Year)
Insulator resistance
Unit
MHz
± ppm
°C
°C
pF
pF
µW
± ppm
MΩ
500
100
-40
Customized specification upon request
Minimum Typical Maximum
3.000
10
10
30
30
-20/+70
100.00
50
50
-40/+85
+85
7.0
6pF ~ 32pF or series
500
3
Ref at 25°C
At 100V
DC
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Refer to Ordering Information
Test conditions
Frequency Tolerance
(at 25°C) ± ppm
Note 1 :
8 MHz is the minimum frequency for package QESM49H32
ESR vs. frequency range and Mode of vibration
Frequency range
(MHz)
3.00 to 3.49
3.50 to 3.99
4.00 to 4.99
5.00 to 6.99
7.00 to 7.99
8.00 to 8.99
9.00 to 9.99
Mode of vibration Max ESR (Ω)
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
150
120
100
80
70
60
50
Frequency range
(MHz)
10.00 to 10.99
11.00 to 19.99
20.00 to 40.00
27.00 to 29.99
30.00 to 44.99
45.00 to 80.00
Mode of vibration
Fund. / AT
Fund. / AT
Fund. / AT
rd
3 / AT
rd
3 / AT
rd
3 / AT
Max ESR (Ω)
40
30
25
100
80
60
Mechanical Characteristics
1
TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-G)
May 23 , 2016
rd
Heights (mm)
49H2
H = 4.0 max
49H32
H = 3.2 max
Marking for SM94H2 / H32
Frequency in MHz (6 digits on the top)
ex: 10.000
Laser marking
Mechanical Conditions
Vibration 10g, 10 H to 2 kHz
according to standard
CEI68-2-63
Shocks
100g, 6 ms according to
standard CEI68-2-27
Note 1 :
QESM49H serie is fully RoHS compliant.
Ordering Information
QESM49H2
1
30
Part numbering system
HQ
50
20
25.000MHZ
Package type
Vibration
mode
Frequency
tolerance
Operating
temperature
range
D=-40°C
F= -30°C
H=-20°C
J=-10°C
L=0°C
M=+50°C
N=+55°C
O=+60°C
Q=+70°C
T=+85°C
Frequency
stability
Load
Capacitance
Nominal
Frequency
(MHz)
Please enter the
nominal
frequency
QESM49H2 :
QESM49H32 :
HC49 SMD package
1 = Fundamental
rd
3 = 3 Overtone
10=±10ppm
30=±30ppm
50=±30ppm
10=±10ppm
30=±20ppm
50=±30ppm
16=16pF
Please, enter the
value of load
capacitance
2
TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-G)
May 23 , 2016
rd
Suggested Reflow Soldering Profile
The product has been tested to withstand the Reflow Profile shown. The Reflow Profile used to solder
TEMEXPRESS QESM49Hx crystals are determinated by the solder paste Manufacturer’s specification. It is
recommended that the Reflow Profile used does not exceed the one shown above.
Tape Drawing
3
TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-G)
May 23 , 2016
rd
Reel Drawing
Multiple
:
1000pcs per reel
4
TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Extending the range of JTAG/Boundary Scan
In recent years, PXI has established its position in the test and measurement industry, especially due to its features such as high-speed data transfer rate and small open and flexible PXI system. Thi...
lorant MCU
A question about shaping circuit
If I want to make a shaping circuit to make the signal into a pulse signal with the same frequency, then can't I just pass the signal through an AND gate? For example, 74F08, the AND gate will only ou...
若吟风弄月 Microchip MCU
【IoT Development】Zhengdian Atom STM32 Battleship v3+Gizwits AIoT+APP Control
Step 1: Go to the Gizwits Developer Center, register a developer account, and start creating a new product.Figure 1 Creating a new productFigure 2 Creating new products and product categoriesAfter set...
毛球大大 RF/Wirelessly
zz uploaded 14 classic tutorials on Android development
[size=14px]Put it in the collection [/size][size=14px][url=https://download.eeworld.com.cn/wenji/show/209]14 Classic Android Development Tutorials[/url][/size][size=14px], welcome to download! [/size]...
hightemplar Linux and Android
Sell FPGA development boards at low prices
FPGA is too difficult :Sad:. I gave up, so I will sell this development department to friends who want to learn at a low price. I bought it for 699 yuan. I will sell it for 300 yuan. (It is still nego...
xiaoyinyan Buy&Sell
Using ISA bus to realize the soft configuration of DSP chip VC5402 Abstract: PC is used as the host, and the ISA bus of PC is used to communicate with the VC5402 DSP chip.
Using ISA bus to realize soft configuration of DSP chip VC5402 Abstract: With PC as the host, the ISA bus of PC is connected to the HPI host parallel port of DSP as the transmission channel to realize...
fighting DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1592  1259  1893  2541  2287  33  26  39  52  47 
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