EEWORLDEEWORLDEEWORLD

Part Number

Search

QESM49H32150HO50625.000MHZ

Description
Parallel - Fundamental Quartz Crystal, 25MHz Nom, HC49, SMD, 2 PIN
CategoryPassive components    Crystal/resonator   
File Size3MB,5 Pages
ManufacturerRakon Limited
Download Datasheet Parametric View All

QESM49H32150HO50625.000MHZ Overview

Parallel - Fundamental Quartz Crystal, 25MHz Nom, HC49, SMD, 2 PIN

QESM49H32150HO50625.000MHZ Parametric

Parameter NameAttribute value
Objectid145207558966
package instructionHC49, SMD, 2 PIN
Reach Compliance Codeunknown
Other featuresAT-CUT
Ageing3 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - FUNDAMENTAL
Drive level100 µW
frequency stability0.003%
frequency tolerance50 ppm
load capacitance6 pF
Installation featuresSURFACE MOUNT
Nominal operating frequency25 MHz
Maximum operating temperature60 °C
Minimum operating temperature-20 °C
physical size11.4mm x 4.7mm x 3.2mm
Series resistance25 Ω
surface mountYES

QESM49H32150HO50625.000MHZ 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.
About ht66f489 package
I am participating in the Hetai Cup, but I don't know much about Hetai. I hope there is detailed information about ht66f489 and how to write the program....
easonas PCB Design
CC2640R2F programming learning experience sharing
1. The idea of low power consumption. Many people don't understand this concept. Let's explain this first. If you understand this, many things about BLE will be much clearer.Low power consumption for ...
Jacktang Wireless Connectivity
TI-TM4C123x learning record: reading high and low levels
Reading the high and low levels of a pin is most commonly used in key press determination, and is also used in interrupts. 1. Key phrases int32_t ROM_GPIOPinRead(uint32_t ui32Port, uint8_t ui8Pins)Par...
Aguilera Microcontroller MCU
DK-LM3S9B92 Information
I asked for a set of DK-LM3S9B92 development board from my teacher, but when I got it back, I found that the CD that came with it was empty. Does anyone have the information of this board? Please shar...
不周天门 Microcontroller MCU
Competition and adventure in digital circuits
When we start learning digital circuits, we usually practice simplifying logical expressions. We can eliminate many terms from this. But when it comes to competition and risk, we sometimes have to int...
lingking Integrated technical exchanges
MSP Simulation Issues
Several of our LaunchPad development boards are emulating very slowly in the CCS5.1 environment. It used to take only a few seconds to enter the simulation debugging, but now it takes nearly a minute....
423783004 MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1814  914  1635  705  2361  37  19  33  15  48 
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