Crystal unit
Epson Toyocom
Product Number (please contact us)
FC-135
FC-145
FC-255
: Q13FC1350xxxx00
: Q13FC1450xxxx00
: Q13FC2550xxxx00
kHz RANGE CRYSTAL UNIT
LOW PROFILE SMD
FC- 135
FC- 255
/
FC- 145
• Frequency range
• Thickness
:
:
:
:
32.768 kHz (32 kHz to 100 kHz)
0.9 mm Max.
Fundamental
Actual size
FC-135
• Overtone order
• Applications
Small communications devices
FC-145
FC-255
Specifications (characteristics)
Specifications
FC-255
Item
Symbol
f_nom
T_stg
T_use
DL
Remarks
FC-135
/
145
32.768 kHz
FC-135
32 kHz to
77.5 kHz
FC-255
Please contact us for inquiries
regarding available frequencies.
Nominal frequency range
Storage
32 kHz to 100 kHz
-55 °C to +125 °C
Store as bare product after unpacking
Temperature
range
temperature
Operating
temperature
-40 °C to +85 °C
0.5 µW Max.
Level of drive
Frequency tolerance
(standard)
+25 °C, DL=0.1 µW
Please ask for tighter tolerance
f_tol
Ti
±20 × 10-6
Turnover temperature
Parabolic coefficient
Load capacitance
+25 °C ±5 °C
B
-0.04 × 10-6 / °C2 Max.
CL
7 pF,9 pF,12.5 pF
70 kΩ Max.
7 pF, 12.5 pF
7 pF,9 pF,12.5 pF
70 kΩ to 45 kΩ
3.7 fF to 1.6 fF
1.3 pF to 0.5 pF
7 pF, 12.5 pF
70 kΩ to 30 kΩ
2.3 fF to 0.6 fF
1.7 pF to 0.9 pF
Please specify
Motional resistance (ESR)
R1
C1
C0
65 kΩ Max.
2.0 fF Typ.
1.3 pF Typ.
Motional capacitance
3.4 fF Typ.
Shunt capacitance
Frequency aging
1.0 pF Typ.
f_age
±3 × 10-6 / year Max.
+25 °C, First year
External dimensions
(
Unit:mm)
.
FC-255
FC-145
FC-135
A501J
A501J
A501J
3.2 ±0.1
4.1±0.1
4.9 ±0.1
3.2
2.3
1.7
#2
#2
#2
#1
#1
#1
Intern al connection
(TOP VIEW )
Internal conn ection
(TOP VIEW )
Internal connection
(TOP VIEW )
0.75
0.9
0.85
#1
#2
#1
#2
#1
#2
Footprint (Recommended)
(Unit:mm)
FC-255
FC-145
FC-135
1.3
1.1
1.0
2.5
3.2
4.2
Do not design any patterns on shaded area.
http://www.epsontoyocom.co.jp