H F F X
VFHFF
75 South Street, Hopkinton, MA 01748 800-982-5737 508-435-6831 Fax: 508-435-5289 www.valpeyfisher.com
50
VFHFF
High Frequency Fundamental Crystal
F E AT U R E S
Miniature Package
Wide Frequency Range
Small Footprint
Low Profile
Inverted Mesa Technology
O P T I O N S
Tape & Reel
Lower Profile
Parameter
Unit
Condition
Min
Typ
Max
Note
Frequency MHz
40.0
500.00
Range
Frequency ppm
25C
20
Tolerance
Frequency ppm
-50
+50
Ref: @
Stability
25C
Temperature
Range: See
Operating
C
-40
Table
+85
Storage
Shunt
pF
7.0
Capacitance
Load
pF
Customer
10.0
Series
Capacitance
Specified
Drive Level
mW
1.0
Aging Per Year
ppm
1st Year
-5
+5.0
Frequency
Dependent
Frequency Range
Mode
ESR (
)
40.000 - 200.000
Fundamental
40
120.000 - 300.000
3rd Overtone
60
200.000 - 500.000
5th Overtone
100
Typical Temperature Characteristics
Tolerances
5
10
15
20
25
50
100
Temp. Ranges
ppm
ppm
ppm
ppm
ppm
ppm
ppm
0
to
50C Y Y Y Y Y Y Y
-10
to
60C
Y Y Y Y Y Y Y
-20
to
70C
Y Y Y Y Y Y Y
-30
to
80C
N N Y Y Y Y Y
-40
to
85C
N N N Y Y Y Y
-55
to
105C
N N N N N Y Y
-55
to
125C
N N N N N N Y
.315"
(8,0mm)
.147"
(3,74mm)
.280
(7,11mm)
.017"
(,43mm)
.340"
(8,64mm)
.5"
(12,7mm)
.128"
(3,25mm)
All specifications are subject to change without notice.
PDF 
ZIP