EEWORLDEEWORLDEEWORLD

Part Number

Search

QESM49H2150DN102019.990MHZ

Description
Parallel - Fundamental Quartz Crystal, 19.99MHz Nom, HC49, SMD, 2 PIN
CategoryPassive components    Crystal/resonator   
File Size3MB,5 Pages
ManufacturerRakon Limited
Download Datasheet Parametric View All

QESM49H2150DN102019.990MHZ Overview

Parallel - Fundamental Quartz Crystal, 19.99MHz Nom, HC49, SMD, 2 PIN

QESM49H2150DN102019.990MHZ Parametric

Parameter NameAttribute value
Objectid145207538055
package instructionHC49, SMD, 2 PIN
Reach Compliance Codeunknown
Other featuresAT-CUT
Ageing3 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - FUNDAMENTAL
Drive level100 µW
frequency stability0.001%
frequency tolerance50 ppm
load capacitance20 pF
Installation featuresSURFACE MOUNT
Nominal operating frequency19.99 MHz
Maximum operating temperature55 °C
Minimum operating temperature-40 °C
physical size11.4mm x 4.7mm x 4.0mm
Series resistance30 Ω
surface mountYES

QESM49H2150DN102019.990MHZ 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.
MPLAB Harmony Learning Chapter 14: Displaying images and fonts stored in external Flash
[font=微软雅黑][size=5]This article is transferred from Microchip Wheatfield Forum[/size][/font] 1. Introduction: MHGC under the Harmony framework provides users with a very convenient graphics developmen...
橙色凯 Microchip MCU
I would like to introduce two chips to you. They have 8 legs and are easy to use.
ADS7816P DIP8 12 BIT ADC; DAC8571 MSOP8 package 16BIT DAC; Advantages: Few pins, cheap; Does not take up space, suitable for general industrial applications, I plan to apply it to photoelectric curve ...
eeleader Industrial Control Electronics
DSP2812 code is blocked by compiler problem
[size=4]Recently, a colleague wrote a program with more than 2000 lines. All the codes were placed in one file. The length of the .text segment was 0x20a0, which exceeded 8k. So he had to block part o...
Aguilera DSP and ARM Processors
Urgent help!! vb.net TextBox ReadOnly property setting under WinCE!!
Hello everyone, I set the property of the TextBox to ReadOnly in VB.NET, but I want to change its gray background color to something else. I can't set the color directly in the code. The Windows progr...
alexander007 Embedded System
Question: How to use the keyboard hook in the wince4.2 environment to send characters to the text box of other program interfaces?
Hello everyone: Purpose: Load the global keyboard hook in the current exe program, and then send the wm_char message to the required wince system program through the hook. It is hoped that in the winc...
Dream1231 Embedded System
Hope to fall in love with EEWORLD in January——Forum Promotion Month Promotion Method 2 (Please follow the post to prove)
1. Friends in the forum post on other forums or blogs; 2. Create one or two links to this site in the post (it can be the address of a post you think is good, or the address of a good blog post) 3. Af...
EEWORLD社区 Suggestions & Announcements

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 53  1494  2221  721  2454  2  31  45  15  50 
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