Datenblatt

Quartz Crystal Units
21SMX CUSTOM
CUSTOM-DESIGNED HIGH SPEC SMD CRYSTALS
CUSTOM SPECIFICATIONS
Item
Specifications
Frequency tolerance (at +25゜
C ±3゜
C)
Temperature stability (referred to +25゜
C)
Temp. Stability(ppm)
Actual size
Actual size
Ope. Temperature Range
0゜
C to
0゜
C to
+45゜
C (edd)
+50゜
C (eee)
0゜
C to
+60゜
C (egg)
0゜
C to
C to
-10゜
C to
-10゜
+70゜
C (eii)
+50゜
C (gee)
C to
-10゜
C to
-10゜
C to
-20゜
+70゜
C (gii)
C
-20゜
C
-30゜
C
-30゜
C
-30゜
C
-35゜
C
-40゜
C
-40゜
C
-40゜
C
-40゜
+75゜
C (ijj)
0.00568 gm (wt.)
21SMX
2.0±0.1
#3
1.6±0.1
#2
0.4±0.1
0.7
0.65
0.65
<Top View>
#4
#2
#3
0.5
0.55
#1
±5.0
±7.5
±10.0
±15.0
±20.0
±30.0
±50.0
±100.0
±150.0
FF
JJ
LL
OO
QQ
RR
TT
XX
CC1
GG1
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
+60゜
C (ggg)
○
○
○
○
+75゜
C (gjj)
+70゜
C (iii)
○
to +75゜
C (kjj)
to +80゜
C (kkk)
to +85゜
C (kll)
to +80゜
C (lkk)
to +85゜
C (mll)
to +90゜
C (mmm)
to +105゜
C (mpp)
to +125゜
C (mtt)
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
#3
#1
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
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○
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○
○
○
○
○
○
○
○
100 Ω max. / 20.000 MHz to 24.000 MHz
80 Ω max. / 24.000 MHz to 26.000 MHz
60 Ω max. / 26.000 MHz to 40.000 MHz
50 Ω max. / 40.000 MHz to 80.000 MHz
5 pF max.
100 μW max. (10 μW for testing)
±2 ppm max. at +25゜
C ±3゜
C for first year
AT-Cut / Fundamental
10 seconds max. at +250゜
C ±10゜
C
#2
<#2 & #4 : Grounded to metal lid>
Equivalent series resistance (ESR)
SOLDERING PATTERN
Shunt capacitance (C0)
Drive level (P)
Aging
Cut / Oscillation mode
Reflow condition
1.05
0.75
1.35
0.85
PART NUMBERING GUIDE
AT-CUT
27.000MHz 21SMX R / TT / iii / 8
(ppm)
+100
Frequency
Package type
Frequency tolerance
+80
+60
+40
+20
0
Load capacitance (CL)
Operating temperature range
Temperature stability
Example
-20
SMI Part No.
Frequency
Package
Frequency
Tolerance
Temperature
Stability
Operating
Temperature Range
Load Capacitance
27.000MHz 21SMX R/TT/iii/8
27.000 MHz
21SMX
R = ±20 ppm
TT = ±30 ppm
iii = -20゜
C to +70゜
C
CL = 8 pF
-40
-60
-80
-100
-45
-30
-15
0
+15
+30
+45
+60
C)
+90 (゜
+75
TYPICAL TEMPERATURE CHARACTERISTICS
TAPE SPECIFICATIONS
Item
Lid
Base
Sealing
Terminal
∅
1.5 +
0
-0 .1
1.75±0.1
4.0±0.1
2.0±0.1
A
C
D
L
PACKAGE DATA
Terminal plating
B
J
M
RoHS
F
A
B
C
D
F
J
L
M
Reel Dia.
Qty/Reel
2.25
1.85
8.0
3.5
4.0
1.05
0.25
0.65
180
3000pcs
(1000pcs)
Package
MCF
∆f/f
○
○
○
○
○ : Available (The extremes depend on actual frequencies.)
0.55
#4
○
○
TCXO
#1
to
±3.0
OCXO
#4
XTAL
21SMX
20.000 MHz to 80.000 MHz
O : ±10 ppm
Q : ±15 ppm
R : ±20 ppm
CLK OSC
Package type
Frequency range
VCXO
21SMX
21SMX
Metal
Ceramic
Seam
Tungsten (metalized)
Gold / Nickel
(surface) / (under)
Compliant (Pb-free)
51
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