电子工程世界电子工程世界电子工程世界

关键词

搜索

型号

搜索

QESM49H4350HM501027.000MHZ

产品描述Parallel - 3Rd Overtone Quartz Crystal, 27MHz Nom, HC49, SMD, 2 PIN
产品类别无源元件    晶体/谐振器   
文件大小375KB,共5页
制造商Rakon Limited
标准
下载文档 详细参数 全文预览

QESM49H4350HM501027.000MHZ概述

Parallel - 3Rd Overtone Quartz Crystal, 27MHz Nom, HC49, SMD, 2 PIN

QESM49H4350HM501027.000MHZ规格参数

参数名称属性值
是否Rohs认证符合
Objectid145207484825
包装说明HC49, SMD, 2 PIN
Reach Compliance Codeunknown
其他特性BT CUT
老化5 PPM/FIRST YEAR
晶体/谐振器类型PARALLEL - 3RD OVERTONE
驱动电平100 µW
频率稳定性0.005%
频率容差50 ppm
负载电容10 pF
安装特点SURFACE MOUNT
标称工作频率27 MHz
最高工作温度50 °C
最低工作温度-20 °C
物理尺寸11.4mm x 4.7mm x 5mm
串联电阻40 Ω
表面贴装YES

QESM49H4350HM501027.000MHZ文档预览

FREQUENCY
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (Rev-F)
Electrical Characteristics ......................................................P01
ESR vs. frequency range and Mode of vibration ..................P01
Mechanical Characteristics ...................................................P01
Ordering Information .............................................................P02
Suggested Reflow Soldering Profile .....................................P03
Tape and Reel Drawing ........................................................P03/P04
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
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
3.200
10
10
30
30
-20/+70
Customized specification upon request
Minimum Typical Maximum
75.000
50
50
-40/+85
+85
7.0
10pF ~ 32pF or series
500
5
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)
3.200 to 4.499
4.500 to 5.999
6.000 to 6.999
7.000 to 7.999
8.000 to 8.999
Mode of vibration Max ESR (Ω)
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
Fund. / AT
150
120
100
90
80
Frequency range
(MHz)
9.000 to 9.999
10.000 to 12.999
13.000 to 30.000
30.000 to 75.000
27.000 to 40.000
Mode of vibration
Fund. / AT
Fund. / AT
Fund. / AT
3
rd
/ AT
3
rd
/ BT
Max ESR (Ω)
60
50
40
80
40
Mechanical Characteristics
1
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Heights (mm)
49H4
H = 5.0 max
49H2
H = 4.0 max
49H32
H = 3.2 max
Marking for SM94H4 / H2 / H32
Frequency in MHz (6 digits on the top)
ex: 10.000
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
QESM49H4
1
Part numbering system
30
HQ
50
20
25.000MHZ
Package type
Vibration
mode
1 = Fundamental
3 = 3
rd
Overtone
Frequency
tolerance
Operating
temperature
range
Frequency
stability
Load
Capacitance
16=16pF
Please, enter the
value of load
capacitance
Nominal
Frequency
(MHz)
Please enter the
nominal
frequency
QESM49H4 :
QESM49H2 :
QESM49H32 :
HC49 SMD packaged
10=±10ppm
30=±30ppm
50=±50ppm
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
10=±10ppm
30=±30ppm
50=±50ppm
2
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Suggested Reflow Soldering Profile
Tape Drawing
3
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.
Frequency
QESM49H4 / H2 / H32
HC49 SMD Crystal – SMD packaged
Specification (rev-F)
June 30
th
, 2006
Reel Drawing
Multiple
:
1000pcs per reel
4
TEMEX reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

推荐资源

利用PC RS232下载程序到281x flash的方法
我是按如下步作的:利用PC RS232下载程序到281x flash的方法:第一步:安装CCS2.2或更高版本  以确保你的源代码能编译为下载源码:xxx.out文件第二步:安装串口编程算法项目文件:sdf28xx_v3_ ......
hansonhe 微控制器 MCU
CAP功能测频率
STC12C5608AD单片机带有CAP功能,可以利用CAP功能测量信号的频率。原理是测量两次上升沿或者下降沿的时间,这个时间就是信号的周期,周期的倒数就是频率了。下面是实现的程序: #include ......
Aguilera 微控制器 MCU
七彩变色装饰灯
一.概述:我们用一片HOLTEK经济型单片机HT48R05A-1构成七彩变色灯电路,使用高亮度LED发光二极管发光。闪烁的频率可方便地利用程序进行修改,例如0.5s、1s、2s、3s、4s等等,整个电路装制与普 ......
rain 单片机
使用TI Grlib时遇到的问题 (有点奇葩)
但是设置为其实地址 (0,23),宽度 240,高度 100 时液晶按照设置显示(设置为竖着刷的,即高度为320,宽度为240) 但是我将高度设置为280(或者只要大于120左右)的时候,背景的设置显示就仅仅 ......
aida66 微控制器 MCU
浅谈ESD静电保护
静电放电(ESD)被认为是电子产品质量最大的潜在杀手,静电防护也成为电子产品质量控制的一项重要内容。 静电是客观存在的自然现象,产生的方式有多样化:如接触、摩擦、电器间感应等。绝 ......
ohahaha PCB设计
攒分,请无视
只为攒分...
goodxinna 嵌入式系统

热门文章更多

 
EEWorld订阅号

 
EEWorld服务号

 
汽车开发圈

 
机器人开发圈

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版

站点相关: 大学堂 TI培训 Datasheet 电子工程 索引文件: 1572  2501  1267  386  2601  32  51  26  8  53 

器件索引   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

北京市海淀区中关村大街18号B座15层1530室 电话:(010)82350740 邮编:100190

电子工程世界版权所有 京B2-20211791 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 Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved