Data Sheet

TF519 Series
Tuning Fork Crystal
FEATURES
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32.7680 kHz Frequency Reference
Package Size 4.9mm x 1.8mm
Tuning Fork Crystal Design
Hermetic Ceramic Package
Frequency Tolerance, ±20 ppm Standard
Frequency Temperature Coefficient, -0.034ppm/°C2
Operating Temperature, -40°C to +85°C Standard
Tape & Reel Packaging, EAI-481
RoHS/Green Compliant (6/6)
APPLICATIONS
The TF519 crystal series is ideal for use in a wide range of communication equipment,
notebooks, computer peripherals, audio visual, Bluetooth and other wireless applications, USB interfaces, PDAs
and automotive electronics.
ORDERING INFORMATION
TF 519
3 2 K 7 6 8 0
PACKAGE SIZE
PACKAGING OPTIONS
519 = 4.9mm x 1.8mm
R - 3k pcs./reel
FREQUENCY TOLERANCE @ 25°C
FREQUENCY IN kHz
2 = ± 20 ppm [standard]
K - indicates kHz and decimal point.
1
LOAD CAPACITANCE
P = 12.5 pF [standard]
1] Frequency is recorded with two leading digits before the ‘K’ and 4 significant digits after the ‘K’ (including zeros).
Not all performance combinations and frequencies may be available.
Contact your local CTS Representative or CTS Customer Service for availability.
PACKAGING INFORMATION [Reference]
Device quantity is 3k pcs. maximum per 180mm reel.
Document No. 008-0450-0
Page 1- 3
www.ctscorp.com
Rev. A
TF519 Series
Tuning Fork Crystal
ELECTRICAL PARAMETERS
ELECTRICAL CHARACTERISTICS
PARAMETER
Frequency
Operating Mode
Frequency Tolerance
Frequency Temperature Coefficient
Frequency Stability
Operating Temperature Range
Turnover Temperature
Load Capacitance *
Aging
Drive Level
Shunt Capacitance
Motional Capacitance
Series Resistance
Insulation Resistance
Storage Temperature Range
SYMBOL
f0
Δf/f0
Δf/fM
TA
TM
CL
Δf/f0
DL
C0
C1
R1
Ri
TSTR
CONDITIONS
@+25°C
±5°C
Standard
@+25°C, 1st year
+100Vdc ±15Vdc
MIN
TYP
MAX
32.7680
Flexural Mode [Tuning Fork]
20
-0.034±0.006ppm/°C2
See Figure 1
-40
+85
+25
12.5
3.0
0.5
1.0
1.35
2.1
70
500
-40
+85
UNIT
kHz
± ppm
°C
°C
pF
± ppm
µW
pF
fF
k Ohms
M Ohms
°C
* See Ordering Information for available options.
FIGURE 1
PARABOLIC TEMPERATURE CURVE
0
-10
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
-20
-30
-40
? f/f [ppm]
-50
Frequency stability [ppm] is determined using parabolic
curve, Δf = Temperature Coefficent(TA-TM)2.
-60
-70
-80
Ex. Find frequency stability at TA = 45°C
Δf = -0.034(45-25)2
Δf = -0.034(20)2
Δf = -13.6 ppm
-90
-100
-110
-120
-130
-140
-150
Temperature [°C]
Document No. 008-0450-0
Page 2 - 3
Rev. A
TF519 Series
Tuning Fork Crystal
MECHANICAL SPECIFICATIONS
TF519 PACKAGE DRAWING
MARKING INFORMATION
1. YM – Date code; Y – year [last digit], M – month
[See Table I for codes].
2. xxx – Lot code.
CYMxxx
NOTES
1. Complete CTS part number, frequency value,
date code and manufacturing site code information
must appear on reel and carton labels.
2. Termination pads (e4); barrier plating is nickel [Ni]
with gold [Au] flash plate.
3. Reflow conditions per JEDEC J-STD-020;
260°C maximum, 20 seconds.
4. MSL = 1.
SUGGESTED SOLDER PAD GEOMETRY
TABLE I
MONTH
CODE
Jan
1
Feb
2
Mar
3
Document No. 008-0450-0
Apr
4
May
5
Jun
6
Jul
7
Page 3 - 3
Aug
8
Sept
9
Oct
X
Nov
Y
Dec
Z
Rev. A