Precision
Low Profile TO-8
SC Crystal
Description
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630-851-5040
www.conwin.com
US Headquarters
630-851-4722:
European Headquarters:
+353-61-472221
Features
Model: 37420-xxxx-Series
Frequency Range: 8.192 to 32 MHz
Frequency Calibration @ 85°C:
+/-1.0ppm
Aging: ppb / Day
Package: TO-8, 0.200” High
Designed for 0 to 70°C Ovenized
Applications
RoHS Compliant / Lead Free
Connor-Winfield
’s
p
recision SC
c
rystals
are designed for high
frequency stability
ovenized applications.
The SC crystals are
capable of achieving <5ppb/
°C at
turning point. The low profile coldweld
package allows for very low aging
performance in a reduced size.
General Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature
UNITS
MINIMUM
-55
NOMINAL MAXIMUM
-
105
UNITS
°C
TABLE 2.0
MINIMUM
(Fo)
8.192
-1.0
78
-
rd
TABLE 1.0
NOTE
ELECTRICAL SPECIFICATIONS
PARAMETER
Center Frequency
Frequency Calibration @ 85ºC
Lower Turning Point
Inflection Temperature
Mode
Shunt Capacitance
Equivalent Series Resistance (ESR)
Load Capacitance
Drive Level
Aging
Q:
-
-
-
-
NOMINAL MAXIMUM
-
-
-
-
3 Overtone
-
See Table 4
20
-
0.5ppb / Day
Dependant on Frequency
-
100
pF
u Watts
5
pF
32.0
1.0
94
96
UNITS
MHz
ppm
°C
°C
NOTE
See Table 4
PACKAGE CHARACTERISTICS
Package
Leak Rate
Marking
TABLE 3.0
Hermetically Sealed Cold welded HC-37/u (TO-8) Package.
0.01ppm atm. cc/sec. maximum
Marking consists of a serial number label with 5 digits followed by a letter to
provide correlation between the serial number and the turning point data.
TABLE 4.0
Frequency Calibration @ 85ºC
+/-1ppm
+/-1ppm
+/-1ppm
+/-2ppm
Frequency Range
8.192 MHz to 9.999 MHz
10 MHz to 12.999 MHz
13 MHz to 19.999 MHz
20 MHz to 32 MHz
Equivalent Series Resistance (ESR)
90 Ohms
85 Ohms
80 Ohms
75 Ohms
Package Outline
0.010 R
(0.25mm)
0.015 (0.38mm) Max.
0.010 (0.25mm) Typ.
(Glass Meniscus)
0.600
(15.24mm)
0.506
(12.85mm)
0.200 Max.
(5.08mm Max.)
Pin Connections
260°C
Solder Profile
Temperature
260°C
220°C
180°C
150°C
120°C
3
2
1
5
4
0.630 (16.00mm)
0.600 (15.24mm)
0
0.282
P
.C.
(7.16mm )
0.019 (0.48mm)
0.016 (0.40mm)
Typ. 5 Places
Bottom View
120 S
Max.
Time
10 S
60 S
Max.
360 Sec. Max.
Bulletin
Page
Revision
Date
Xt217
1 of 1
01
04 Aug 2008
0.031
45° (0.79mm )
0.450
Dia.
(11.43mm )
(Reference only)
Pin
1
2
3
4
5
Connection
Case
Crystal Connection
N/C
Crystal Connection
N/C
Part Number
37420 - xxxx - xxx.xM
TO-8 SC Cut Specification
(CW Assigned)
Frequency
(Mhz)
0.032
(0.81mm )
Specifications subject to change without notice. All dimensions in inches. © Copyright 2008 The Connor-Winfield Corporation
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