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

QESM49H32350JT301075.000MHZ

产品描述Parallel - 3Rd Overtone Quartz Crystal, 75MHz 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

QESM49H32350JT301075.000MHZ概述

Parallel - 3Rd Overtone Quartz Crystal, 75MHz Nom, HC49, SMD, 2 PIN

QESM49H32350JT301075.000MHZ规格参数

参数名称属性值
是否Rohs认证符合
Objectid145207475540
包装说明HC49, SMD, 2 PIN
Reach Compliance Codeunknown
YTEOL6.85
其他特性AT 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0.003%
频率容差50 ppm
负载电容10 pF
安装特点SURFACE MOUNT
标称工作频率75 MHz
最高工作温度85 °C
最低工作温度-10 °C
物理尺寸11.4mm x 4.7mm x 3.2mm
串联电阻80 Ω
表面贴装YES

QESM49H32350JT301075.000MHZ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.
485总线应注意问题
查看资料看485总线需要注意的问题主要为以下几点: 1、错误状态保护:也就是用上下拉电阻保持空闲时的状态,max485有此功能 2、过电压保护:2个二极管连接到电源5/0V,一般数字ic都有这个 3、 ......
123456ZJ 嵌入式系统
如何访问笔记本上摄像头的数据
我想访问一自己笔记本上的摄像头的图像数据,如RGB值,用来做图像处理的的一些研究。但是不知道怎么样才能访问到这些数据,也不知道哪里有有相关的借口函数。请各位高手帮帮小弟。...
hzhanhai 嵌入式系统
请问:这些宏定义的根据是什么?看了一下数据手册,不明白.
/*RCCFlag*/#defineRCC_FLAG_HSIRDY((u8)0x20)#defineRCC_FLAG_HSERDY((u8)0x31)#defineRCC_FLAG_PLLRDY((u8)0x39)#defineRCC_FLAG_LSERDY((u8)0x41)#defineRCC_FLAG_LSIRDY((u8)0x61)#def ......
yaowenqiang stm32/stm8
430单片机做ADC,单通道测量只有通道0是OK的,其它通道都不准,是什么问题
RT:430单片机做ADC,单通道测量只有通道0是OK的,其它通道都不准,是什么问题 真是头疼啊,只有通道0准确,单独测量其它任何一路都不准确,啥问题呢 ...
qq4988 微控制器 MCU
发送彩信问题
各位好,我现在用HTTP1.1协议发送彩信,只要组合一个HTTP报头和MMS PDU就可以了。但是现在HTTP的报头发出总是回复400错误,不加Content-Length的话就返回200OK。哪里的问题?头如下: POST ......
HHY55 嵌入式系统
万恶的FSMC驱动液晶(ILI9341控制器) 详祥祥详祥祥解
万恶的FSMC驱动液晶(ILI9341控制器) 详祥祥详祥祥解 野火奉献...
wangbin65530 stm32/stm8

 
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: 2795  1626  2847  2239  2811  57  33  58  46  55 

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