Datenblatt

Quartz Crystal Units
26(LF)
STANDARD 32.768kHz SMD CRYSTALS
STANDARD SPECIFICATIONS
26(LF)
XTAL
Item
Symbol
Part number
P/N
26(LF)*2
Package Type
Nominal frequency
Frequency tolerance (at +25゜
C)
∆f/F
Load capacitance
CL
CLK OSC
0.0535 gm (wt.)
Equivalent series resistance
“
VCXO
“
ĭ
PD[
“
SOLDERING PATTERN
1.75
2.5
TCXO
0
-20
-40
-60
-80
-100
-120
-140
OCXO
-160
-40
-25
-10
+5
+20
+35
+50
+65
C)
+110 (゜
+80
TYPICAL TEMPERATURE CHARACTERISTICS
1.5 +
0
0 .1
Turnover temperature
Tt
Temperature coefficient
β
C2, Typical.
-0.034 ppm / ゜
Quality factor
Q
50000 min.
Shunt capacitance
C0
1.45 pF, Typical
Motional capacitance
C1
0.003 pF, Typical
γ
480, Typical
±5 ppm max. at +25゜
C ±3゜
C
500 MΩ min. at 100V DC ±15V
Aging (for first year)
∆f/F
Insulation resistance
Ri
XY-Cut
Operating temperature range
To
C to +85゜
C
-40゜
Storage temperature range
Ts
C to +125゜
C
-55゜
±10 ppm max.
Shock resistance
∆f/F
Vibration resistance
∆f/F
IR reflow resistance
∆f/F
2.0±0.1
Package
Cover
26(LF)
Metal
Base
Glass
A
C
D
Item
B
J
M
F
A
B
C
D
F
J
L
M
Reel Dia.
Qty/Reel
9.7
4.0
3.5
16.0
7.5
8.0
-
0.3
2.15
330
2000pcs
1000pcs
66
Sealing
±10 ppm max.
±10 ppm max.
10 seconds max. at +250゜
C ±10゜
C
Reflow condition
PACKAGE DATA
1.75±0.1
∅
12.5 pF : 26(LF)327 (Standard)
10.0 pF : 26(LF)327-10
8.0 pF : 26(LF)327-8
50k Ω max. (To : -40゜
C to +85゜
C)
1 μW max.
+25゜
C ±5゜
C
( * ) For m er l y 26ST F 327( LF ) H
(* 2 ) For m er l y 2x 6( LF ) H
4.0±0.1
L
A : ±15 ppm
B : ±20 ppm
C : ±30 ppm (Standard)
D : ±50 ppm
P
1
TAPE SPECIFICATIONS
32.768 kHz
Drive level
Cut
XY-CUT
(ppm)
¨II
ESR
Capacitance ratio
2.5
1.0 1.54 1.0
6.0
MCF
F
Actual size
26(LF)
Specifications
26(LF)327*1
Press-fit
Terminal lead
Kovar
Terminal lead
plating
Sn-90Pb
RoHS
Compliant
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