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142-12.0M-20-25HT

Description
Weld Type Quartz
File Size171KB,4 Pages
ManufacturerOscilent
Websitehttp://www.oscilent.com
Download Datasheet View All

142-12.0M-20-25HT Overview

Weld Type Quartz

Oscilent Corporation | 141 - 142
Page 1 of 4
Quartz Crystals
Series Number
Package
Description
Last Modified
141 ~ 142
Quartz Crystal FEATURES
- Industry Standard Package
- Wide Frequency range
- Tight Tolerances
- Excellent reliability/Aging
- "AT" cut crystals
- Cost effective
- RoHs / Lead Free compliant
HC-49U / HC-49T
Weld Type Quartz
April. 17 2008
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
1.800 ~ 100.00
±30 std. (±5 ~ ±100 avail.)
±50 std. (See Table 2)
-20 ~ +70 std. (See Table 2)
-55 ~ +125
7.0 max.
20.0 std. (8 ~ 50 and Series avail.)
0.05 ~ 1.0
±5.0 max.
500 (DC100 ±10V) min.
UNITS
MHz
PPM
PPM
°C
°C
pF
pF
mW
PPM/Y
Mohm
TABLE 1 - MODE OF OSCILLATION AND EQUIVALENT SERIES RESISTANCE
FREQUENCY RANGE (MHz)
1.800 ~ 2.000
2.000~ 2.400
2.400 ~ 3.000
3.000 ~ 3.500
3.500 ~ 4.000
4.000 ~ 7.000
7.000 ~ 10.000
10.000 ~ 15.000
15.000 ~ 20.000
20.000 ~ 25.000
25.000 ~ 30.000
30.000 ~ 75.000
75.000 ~ 100.000
27.000 ~ 35.000
MODE
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fund. / 3rd OT
Fund. / 3rd OT
3rd Overtone
3rd / 5th Overtone
BT Fund.
HC-49T (ohm max.)
-
-
-
-
150
90
50
45
25
25 / 60
25 / 40
40
- / 60
40
HC-49U (ohm max.)
600
450
350
150
90
70
50
35
25
25 / 50
25 / 40
40
- / 60
40
TABLE 2 - FREQUENCY - TEMPERATURE TOLERANCE
Tolerance (PPM)
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