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B39241-R688-B110

Description
1-Port Saw Resonator, 239.75MHz Nom, METAL CAN, TO-39, 3 PIN
CategoryPassive components    Crystal/resonator   
File Size73KB,4 Pages
ManufacturerEPCOS (TDK)
Download Datasheet Parametric View All

B39241-R688-B110 Overview

1-Port Saw Resonator, 239.75MHz Nom, METAL CAN, TO-39, 3 PIN

B39241-R688-B110 Parametric

Parameter NameAttribute value
MakerEPCOS (TDK)
package instructionMETAL CAN, TO-39, 3 PIN
Reach Compliance Codeunknown
Crystal/Resonator Type1-PORT
frequency stability0.0147%
Frequency tolerance(MHz)0.1
Insertion loss1.4 dB
JESD-609 codee4
Manufacturer's serial numberR688
Installation featuresTHROUGH HOLE MOUNT
Nominal operating frequency239.75 MHz
Maximum operating temperature85 °C
Minimum operating temperature-45 °C
Parallel capacitor5.1 pF
physical sizeD9.35XH3.3 (mm)
surface mountNO
Terminal surfaceGOLD

B39241-R688-B110 Preview

SAW Components
Data Sheet R 688
SAW Components
Resonator
Data Sheet
R 688
239,75 MHz
Metal package
TO 39
Features
s
1-port resonator
s
Provides reliable, fundamental mode, quartz fre-
quency stabilization i. e. in transmitter or local
oscillators
Terminals
s
NiFeCo, gold plated
Dimensions in mm, approx. weight 1,0 g
Pin configuration
1
2
3
Input
Ground
Ground (case)
Type
R 688
Ordering code
B39241-R 688-B110
Marking and Package
according to
C61157-A7-A24
Packing
according to
F61074-V8072-Z000
Electrostatic Sensitive Device
(ESD)
Maximum ratings
Operable temperature range
Storage temperature range
DC voltage
Source power
T
A
T
stg
V
DC
P
s
–45/+85
–45/+85
12
0
˚C
˚C
V
dBm
between any terminals
2
Jan 03, 2000
SAW Components
Resonator
Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
R 688
239,75 MHz
T
A
= 25 ˚C
Z
S
= 50
Z
L
= 50
min.
Center frequency
1)
Minimum insertion attenuation
Unloaded quality factor
Ageing of
f
c
Equivalent circuit elements
Motional capacitance
Motional inductance
Motional resistance
Parallel capacitance
Temperature coefficient of frequency
2)
Turnover temperature
1)
Center
typ.
239,75
0,7
17500
4,217
104,5
9
5,1
– 0,03
max.
239,85
1,4
±
50
19
45
ppm
fF
µH
pF
ppm/K
2
˚C
MHz
dB
f
c
α
min
239,65
8300
Q
U
C
1
L
1
R
1
C
0
TC
f
T
0
15
frequency is defined as maximum of the real part of the admittance
dependence of
f
c
:
2)
Temperature
f
c
(T
A
) =
f
c
(T
0
)(1 +
TC
f
(T
A
T
0
)
2
)
3
Jan 03, 2000
SAW Components
Resonator
Data Sheet
R 688
239,75 MHz
Published by EPCOS AG
Surface Acoustic Wave Components Division, OFW E UE
P.O. Box 80 17 09, D-81617 München
©
EPCOS AG 1999. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for compo-
nents per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, prices and delivery please contact the sales offices of EPCOS AG or
the international representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our sales offices.
4
Jan 03, 2000
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