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251-18.0M-16-25GS

Description
Parallel - Fundamental Quartz Crystal, 18MHz Nom, ROHS COMPLIANT, HC-49SM, SMD, 2 PIN
CategoryPassive components    Crystal/resonator   
File Size165KB,4 Pages
ManufacturerOscilent
Websitehttp://www.oscilent.com
Environmental Compliance  
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251-18.0M-16-25GS Overview

Parallel - Fundamental Quartz Crystal, 18MHz Nom, ROHS COMPLIANT, HC-49SM, SMD, 2 PIN

251-18.0M-16-25GS Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerOscilent
package instructionROHS COMPLIANT, HC-49SM, SMD, 2 PIN
Reach Compliance Codecompliant
Other featuresAT CUT
Ageing5 PPM/FIRST YEAR
Crystal/Resonator TypePARALLEL - FUNDAMENTAL
Drive level100 µW
frequency stability0.003%
frequency tolerance25 ppm
load capacitance16 pF
Manufacturer's serial number251
Installation featuresSURFACE MOUNT
Nominal operating frequency18 MHz
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
physical sizeL11.5XB5.0XH3.2 (mm)/L0.453XB0.197XH0.126 (inch)
Series resistance40 Ω
surface mountYES
Oscilent Corporation | 250 - 251
Page 1 of 4
SMD Quartz Crystal
Series Number
Package
Description
Last Modified
250 ~ 251
.
FEATURES
- Cost effective
- Low profile
- Space saving design
- Tape and Reel
- RoHs / Lead Free compliant
HC-49SM
SMD Quartz Crystal
Sept. 01 2004
.
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS
Frequency Range
Frequency Tolerance
Temperature Tolerance
Operating Temperature
Storage Temperature
Shunt Capacitance
Load Capacitance
Drive Level
Aging (First Year)
Insulation Resistance
CONDITIONS
.
f
O
Ref @ +25°C
T
L
T
OPR
T
STG
C
O
C
L
D
L
@ +25°C
I
R
CHARACTERISTICS
3.000 ~ 85.00
±30 std. (±5 ~ ±100 avail.)
±50 std. (See Table 2)
-10 ~ +60 std. (See Table 2)
-55 ~ +125
7.0 max.
20.0 std. (8 ~ 50 and Series avail.)
0.1 ~ 1.0
±5.0
500 (DC100 ±10V) min.
UNITS
MHz
PPM
PPM
°C
°C
pF
pF
mW
PPM/Y
Mohm
.
TABLE 1 - OPERATION MODE AND MOTIONAL RESISTANCE (RS)
FREQUENCY RANGE (MHz)
3.000 ~ 3.500
3.500 ~ 3.800
3.800 ~ 4.100
4.100 ~ 5.000
5.000 ~ 6.000
6.000 ~ 8.000
MODE
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
ohm max.
300
150
120
100
80
70
FREQUENCY RANGE (MHz)
8.000 ~ 10.000
10.000 ~ 12.000
12.000 ~ 28.000
28.000 ~ 33.500
26.000 ~ 40.000
40.000 ~ 75.000
MODE
Fundamental
Fundamental
Fundamental
Fundamental
3rd OT
3rd OT
ohm max.
60
50
40
50
100
80
.
TABLE 2 - FREQUENCY - TEMPERATURE TOLERANCE
Cutting
Temperature
Range
0 ~ +50°C
-10 ~ +60°C
AT
-20 ~ +70°C
-30 ~ +80°C
Tolerance (PPM)
±5.00
x
-
-
-
±10.0
x
x
-
-
±15.0
x
x
x
-
±20.0
x
x
x
x
±30.0
x
O
x
x
±50.0
x
x
O
x
x
O
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