23
Crystal unit
Specifications (characteristics)
0.3
1.1
8.0 Max.
2.0 Max.
3.0
Max.
2.5
Max.
1.55
Max.
1.55
Max.
0.25
Max. 0.7Min.
3.0
6.3
2.4
3.0
1.2
0.6
Frequency temperature characteristics
Series resistance
(Unit: mm)
External dimensions
Recommended soldering pattern(SA-315HZ)
8.0 Max.
7.5 Min.
3.0
Max.
0.3
1.1
SA-315H
SA-315HZ
128AH72
THIN CYLINDER HIGH-STABILITY CRYSTAL UNIT
SA-315H/315HZ
Thin cylinder of 1.55 mm thickness featuring high stability.
Small and thin with small mounting area and light weight.
High heat resistance allows reflow soldering.
Excellent shock resistance and environmental capability.
Embossed tape usable for SMD.(SA-315HZ)
Most suitable for small communications devices.
Item
Nominal frequency range
Temperature
range
Drive level
Soldering condition (reflow)
Frequency tolerance (standard)
Frequency temperature characteristics
Load capacitance
Series resistance
Shunt capacitance
Insulation resistance
Aging
Shock resistance
Symbol
f
TSTG
TOPR
TUSE
GL
DL
TSOL
f/f
CL
R1
C0
IR
fa
S.R.
Specifications
10.000 MHz to 27.000 MHz
-55 °C to +125 °C
-40 °C to +85 °C
As per below table
2 mW Max.
10 W to 100 W
+240 °C Max. within 10 s and under +200 °C within 40 s
±10 x 10-6
As per below table
10 pF to
∞
As per below table
3.0 pF Max.
500 M
Min.
±1 x 10-6 / year Max.
±1 x 10-6 Max.
Remarks
Fundamental mode
Specified equivalent series resistance must be satisfied.
Specified equivalent series resistance and frequency-temperature
characteristics must be satisfied.
Only crystal oscillation is guaranteed
DL=100 W at Ta=+25 °C ±3 °C and specified load capacity.
Please specify
Operable temperature range, DL=100
W
Ta =+25
°C ±1 °C, 100 W
Three drops on a hard wooden board from 750 mm or
excitation test with 29400 m/s2 x 0.3 ms x 1/2 sine wave
x 3 directions
Operating temperature range
0
°C to +50 °C
-10
°C to +60 °C
-20
°C to +70 °C
-30
°C to +80 °C
-40
°C to +85 °C
Frequency tolerance
±3 x10-6 Min.
±5 x10-6 Min.
±7 x10-6 Min.
±10 x10-6 Min.
±15 x10-6 Min.
Storage temperature
Operating temperature
Operable temperature
Maximum drive level
Recommended drive level
Measured values for frequency tolerance and temperature characteristics need to be brought into mutual correlation prior to the start of production.
Please check the soldering condition of plug case department before use.
Frequency (MHz)
10.0
≤ f < 12.0
12.0
≤ f ≤ 27.0
Series resistance (R1)
40
Max.
30
Max.
Actual size