SM55E-SR-70.0M [PLETRONICS]
Series - 3Rd Overtone Quartz Crystal, 70MHz Nom, SMD, 4 PIN;型号: | SM55E-SR-70.0M |
厂家: | PLETRONICS, INC. |
描述: | Series - 3Rd Overtone Quartz Crystal, 70MHz Nom, SMD, 4 PIN 驱动 晶体 谐振器 |
文件: | 总1页 (文件大小:39K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
19013 36th Ave. West Suite H Lynnwood, WA 98036, USA
SM55, SM45, SM40 Crystal
HC-49/US Low Profile Crystal Mounted on a Surface Mount Platform
Available in 3 heights, SM55: 5.5mm, SM45: 4.5mm, SM40: 4.0mm
Solder Pad Compatible with our SM39S and SMD Crystals from Epson, Meiden & Citizen
Available in Standard 4 pad or Optional 2 pad Pinout Style
–
3.200 MHz 70.000 MHz
Standard Specifications
°
± 30 PPM is standard, tighter tolerances available
Calibration Frequency Tolerance at 25 C
Operating Temperature Range (OTR)
Frequency Stability (FS) over OTR
Drive Level
Aging at 25°C
Shunt Capacitance
0 to +70°C is standard, but can be extended to -40 to +85°C
± 50 PPM is standard, tighter tolerances available
50 mW is standard, customer may specify
± 5 PPM per year is standard, customer may specify ± 1 PPM
7 pF maximum
Pullability
May be specified by customer in terms of frequency shift required over a certain range of load capacitance
(e.g. +100 PPM from CL=12 to CL=18 pF) or as motional capacitance ( fF )
Part Numbering Guide
ESR Values
Oscillation
Mode
Frequency Range
(MHz)
Maximum
ESR (Ohms)
SM45 E -- xx -- 70.0M
Model
(Height/Pinout)
Frequency in MHz
Load Capacitance
Parallel Resonance in pF (³ 10 pF)
SR = Series Resonance
–
300
120
70
3.200
5.000
8.000
4.999
7.999
11.999
30.000
Fundamental
AT Cut
SM55: 5.5mm/Std
SM45: 4.5mm/Std
SM40: 4.0mm/Std
SMP55: 5.5mm/2 pad
SMP45: 4.5mm/2 pad
SMP40: 4.0mm/2 pad
–
–
–
50
12.000
3rd Overtone
AT Cut
Temperature Range
–
100
25.000
70.000
Blank: 0 to +70°C
E: - 40 to +85°C
Consult factory for lower ESR
Consult factory for available frequencies and specs.
Not all options available for all frequencies. A special part number may be assigned.
Solder Pads
Mechanical: inches (mm)
not to scale
Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code.
Standard Pinout (SM)
Packaging
.516 (13.1) MAX
24mm tape
12mm pitch
.09 (2.4)
.06 (1.6)
.197 (5.0) MAX
.256 (6.5)
.09 (2.2)
.14 (3.6)
SM55: .217 (5.5) MAX
SM45: .177 (4.5) MAX
SM40: .157 (4.0) MAX
Optional 2 Pad Pinout (SMP)
.370 (9.4)
.09 (2.4)
.055 (1.4)
.06 (1.6)
CASE GND
CASE GND
.256 (6.5)
.09 (2.2)
.14 (3.6)
May 2002
(425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
37
Pl tronics, Inc.
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