B39321R821H210 EPCOS Inc, B39321R821H210 Datasheet - Page 3

• Manufacturer Part Number: B39321R821H210
• Description: RESONATOR SAW CER 315MHZ SMD
• Manufacturer: EPCOS Inc
• Series: B39321r
• Type: SAWr

Specifications of B39321R821H210

• Frequency: 315MHz
• Package / Case: 4-SMD
• Features: without Capacitor
• Impedance: 50 Ohm
• Capacitance: 2.8pF
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Size / Dimension: 0.197" L x 0.138" W (5.00mm x 3.50mm)
• Height: 0.057" (1.45mm)
• Termination Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 125 C
• Dimensions: 3.5 mm W x 5 mm L x 1.45 mm H
• Supply Voltage: 12 Volts
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 495-2372-1

Data Sheet
Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Center frequency
Minimum insertion attenuation
Unloaded quality factor
Ageing of f
Equivalent circuit elements
Motional capacitance
Motional inductance
Motional resistance
Parallel capacitance
Temperature coefficient of frequency
Turnover temperature
1)
2)
3)
Temperature dependence of f
SAW Components
Resonator
Center frequency is defined as maximum of the real part of the admittance
If used in two port configuration (pin 1-input, pin 3-output) C
c
1)
2)
c
:
f
c
( T
A
) = f
3)
c
( T
T
Z
Z
A
S
L
0
)(1 + TC
3
= 25 ˚C
= 50
= 50
f
Q
C
L
R
C
TC
T
c
1
min
0
1
1
0
U
Oct 11, 2004
f
f
( T
314,925
min.
A
9400
20
—
—
—
—
—
—
—
– T
0
is reduced by approx. 0,3 pF.
0
)
2
)
315,00
–0,032
13000
2,136
119,5
typ.
1,5
2,8
18
—
—
315,075 MHz
–50/+50 ppm
max.
1,9
25
50
—
—
—
—
—
315,00 MHz
R 821
dB
fF
pF
ppm/K
˚C
H
2