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20.000MHZX21/10/15/-40+85/32PF PDF预览

20.000MHZX21/10/15/-40+85/32PF

更新时间: 2024-11-04 14:51:03
品牌 Logo 应用领域
EUROQUARTZ 驱动晶体谐振器
页数 文件大小 规格书
1页 167K
描述
Parallel - Fundamental Quartz Crystal, 20MHz Nom, ROHS COMPLIANT, ULTRA MINIATURE, SMD, 4 PIN

20.000MHZX21/10/15/-40+85/32PF 技术参数

是否Rohs认证: 符合生命周期:Contact Manufacturer
包装说明:ROHS COMPLIANT, ULTRA MINIATURE, SMD, 4 PINReach Compliance Code:compliant
HTS代码:8541.60.00.50风险等级:5.64
其他特性:AT-CUT CRYSTAL; TAPE AND REEL老化:3 PPM/YEAR
晶体/谐振器类型:PARALLEL - FUNDAMENTAL驱动电平:10 µW
频率稳定性:0.0015%频率容差:10 ppm
负载电容:32 pF安装特点:SURFACE MOUNT
标称工作频率:20 MHz最高工作温度:85 °C
最低工作温度:-40 °C物理尺寸:L2.05XB1.65XH0.6 (mm)/L0.081XB0.065XH0.024 (inch)
串联电阻:120 Ω表面贴装:YES
Base Number Matches:1

20.000MHZX21/10/15/-40+85/32PF 数据手册

  
QUARTZ  
EURO  
X21 CRYSTALS  
20.0MHz to 54.0MHz  
2.0 x 1.6 x 0.6mm SMD  
Frequency range 20MHz to 54MHz, fundamental mode  
Ultra-miniature package 2.0 x 1.6 x 0.6mm  
Packaged in standard EIA tape and reel  
Exceptionally low ageing  
High shock and vibration resistance  
Ideal for PDAs, hand-held GPS, PCMCIA etc.  
OUTLINE & DIMENSIONS  
DESCRIPTION  
X21 crystals are ultra-miniature AT-cut crystals covering the frequency  
range 20MHz to 54MHz in fundamental mode. Their exceptionally  
small size (2.0 x 1.6mm) and low mass coupled with high shock and  
vibration resistance makes these crystals ideal for miniaturized  
handheld equipment and similar high-density applications.  
SPECIFICATION  
Frequency Range  
AT-Cut Fundamental:  
Calibration Tolerance at 25ºC:  
Frequency stability  
-10° to +60°C  
20.0MHz to 54.0MHz  
±10ppm, ±20ppm or ±30ppm  
from ±5ppm (contact Euroquartz)  
from ±10ppm  
-20° to +70°C  
-40° to +85°C  
from ±15ppm  
Storage Temperature:  
Equivalent Series Resistance:  
Shunt Capacitance (C0):  
Load Capacitance (CL):  
Ageing:  
-50°~+105°C  
See table  
2pF to 4pF typical, 5pF maximum  
Series or from 8pF to 32pF  
<±3ppm per year at +25°C  
10 µW typ., 100 µW max.  
10s maximum at 260°C twice  
or 180s at 230°C, once.  
EIA tape and reel  
Drive level:  
Reflow Soldering:  
Packaging:  
Note: The entire crystal package may be grounded via the top  
metal lid and pads 2 and 4 on the underside of the unit.  
PART NUMBER GENERATION  
EQUIVALENT SERIES RESISTANCE  
Part numbers for X21 crystals are generated as follows:  
Frequency  
Range MHz  
ESR  
Ω Max.  
24.000MHz X21/10/30/-10+60/12pF/80R  
Example:  
Nominal Frequency  
Package  
20.0~30.0  
30.1~54.0  
120  
80  
Calibration tolerance  
at 25°C (±ppm)  
Temperature Stability  
over temp. range (±ppm)  
Operating Temp. Range (°C)  
(Lower and upper limits)  
Load Capacitance  
(Either SR for series or CL in pF)  
Equivalent Series Resistance  
(Optional - use when special  
value is required)  
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE  
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk  

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