CRYSTAL UNIT
32.768KHZ
YST310S
Applications
‧
RTC.
Features
‧
Dimensions:
3
.
2
0
x
1
.
50
x
0
.
7
5
mm
.
‧
Standard Frequency:
32.768KHz
‧
High precision and high frequency stability.
‧
Excellent heat resistance and environmental
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Dim
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[
u
ni
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:mm
]
Package Size – Dimensions (Unit: mm)
Standard Frequency 32.768
KHz
Load Capacitance
Frequency Tolerance (at 25
)
±10ppm,
±2
0
pp
m
,
o
r
s
p
ec
if
y
Parabolic Coefficient ( - 0.03 ± 0.01 ) * 10
-6
/ ℃
2
Operating Temperature
-20~+70℃，-40~+85℃，
o
r
s
p
ec
if
y
Storage Temperature
-55~+125℃
Shunt Capacitance 1.2 pF Max.
Motional Capacitance 4.4fF
Level of Drive 1.0μWMax
Aging (at 25
℃
)
±3ppm/year Max.
YST310S
70K
Ω
Max.
,
F
p
7
9
p
F
, y
fi
ce
p
s
r
o
,
F
p
5
.21
℃
Marking
Marking: "YXC32XX" or "0XXXX"
Bottom View
1.70
Top View Crystal Connection
Top View Suggested Layout
Side View
Top View
1.0 1.50 1.0
1.80
0.75 ±0.1
1.5±0.1
3.2±0.1
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CRYSTAL UNIT
32.768KHZ
YST310S
Reflow Soldering Profile
T
a
p
in
g
S
p
e
c
ifi
c
a
t
i
o
n
(
U
ni
t
: mm
)
S
i
z
e
A
B
C
D E
F
G
H
S
M
D
-
3
21
5
1
80
±2
.
0
12
.
0
±
0
.
3 3
.
4
5
±
0
.
1 1
.
7
5
±
0
.
1
4
.
0
±
0
.
1 1
.
05
±
0
.
1
6
1
.
0
±1
.
0
12
.
0
±1
.
0
3000
p
cs
p
e
r r
ee
l
Pre Heating Temperature
Tp1 ~ Tp2 = + 170 °C
Heating Temperature
TMlt = + 220 °C
Peek Temperature
TMax. = + 260 °C
Temperature
+260℃
TMax.
+220℃
Tmlt
Point of measuring
In case of Solder ability
Terminal.
In case of Resistance to soldering heat
Surface.
T
p2
Tp1
35s
100s
t(time)
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