TFA32 Series
Automotive Grade Tuning Fork Crystal
Features
AEC-Q200 Compliant
Hermetic Ceramic Surface Mount Package
Tuning Fork Crystal Design
32.7680kHz Frequency Reference
Frequency Tolerance, ±20ppm Standard
Parabolic Temperature Coefficient
Tape and Reel Packaging, EIA-418
Part Dimensions:
3.2 × 1.5 × 0.9mm • 12.1467mg
Applications
Automotive Electronics
Car Navigation Systems
Car Infotainment Systems
Industrial Control Equipment
M2M Communications
FPGAs & Microcontrollers
Description
CTS TFA32 Series is ideal for supporting wide range of electronic designs requiring a Real Time Clock reference.
This series will support general automotive and industrial applications.
Ordering Information
Frequency
Tolerance
2
Model
TF
A32
Package
Code
Automotive
A
3.2x1.5mm
32
Load
Capacitance
P
Code
P
J
V
T
Code
2
1
@ +25°C
±20ppm
±10ppm
Temperature
Range
I
Capacitance
12.5pF
9pF
7pF
6pF
Frequency Code
Packaging
[kHz]
327K
Code
R
Frequency
Frequency = 32.7680kHz
Temp. Range
Code
-40°C to +85°C
I
-40°C to +105°C
G
H
-40°C to +125°C 1
Packing
Code
3k pcs./reel
R
Notes:
1] Check with factory for availability.
Not all performance combinations and frequencies may be available.
Contact your local CTS Representative or CTS Customer Service for availability.
This product is specified for use only in standard commercial applications. Supplier disclaims all express and implied
warranties and liability in connection with any use of this product in any non-commercial applications or in any
application that may expose the product to conditions that are outside of the tolerances provided in its specification.
DOC# 008-0563-0 Rev. E
Page 1 of 4
©2017 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
TFA32 Series
Automotive Grade Tuning Fork Crystal
Electrical Specifications
Operating Conditions
P ARAMETER
SYMBO L
CO NDITIO NS
MIN
TYP
-40
O perating Temperature
TA
-
-40
MAX
UNIT
+85
+25
-40
+105
°C
+125
Turnover Temperature
TM
-
+20
+25
+30
°C
Storage Temperature
TSTG
-
-55
-
+125
°C
SYMBO L
CO NDITIO NS
MIN
TYP
MAX
UNIT
fO
-
Δf/fO
Standard @ +25°C
ß
See Figure 1
Δf/f0
First Year @ +25°C
-3
-
3
ppm
SYMBO L
CO NDITIO NS
MIN
TYP
MAX
UNIT
-
-
CL
Standard
-
12.5
-
pF
Shunt Capac itanc e
C0
-
-
1.2
-
pF
Motional Capac itanc e
C1
-
-
3.4
-
fF
Series Resistanc e
R1
-
-
-
70
kΏ
Drive Level
DL
-
-
0.5
1.0
µW
Insulation Resistanc e
Ri
+100Vdc ±15Vdc
500
-
-
MΏ
Frequency Stability
P ARAMETER
Frequenc y
Frequenc y Toleranc e
[Note 1]
P arabolic Coeffic ient
Aging
32.7680
-20
-
kHz
20
ppm
ppm/°C2
-0.034 ±0.010
Crystal Parameters
P ARAMETER
O perating Mode
Load Capac itanc e
[Note 1]
Flexural Mode [Tuning Fork]
-
1.] See Ordering Information for available options.
Figure 1
Frequency Stability [Δf] at a given temperature,
Δf = ß[T A -T M ] 2
ß = Parabolic Coefficient
TA = Ambient Temperature
TM = Turnover Temperature
DOC# 008-0563-0 Rev. E
Ex. Find frequency stability at TA = +60°C
Δf = -0.034[60-25]2
Δf = -0.034[35]2
Δf = -41.65ppm
Page 2 of 4
©2017 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
TFA32 Series
Automotive Grade Tuning Fork Crystal
Mechanical Specifications
Package Drawing
Marking Information
Contact factory for marking formats that apply to this
model series.
Recommended Pad Layout
Notes
1. JEDEC termination code (e4). Barrier-plating is
nickel [Ni] with gold [Au] flash plate.
2. Reflow conditions per JEDEC J-STD-020; +260°C
maximum, 20 seconds.
3. MSL = 1.
4. Due to the large world-wide production volumes
for this model series, product variability may exist
between production date codes, such as package
coloring and product marking format. CTS
guarantees form-fit-function performance to
published data sheet parameters. Contact your
local CTS Representative or CTS Customer Service
with specific questions.
DOC# 008-0563-0 Rev. E
Page 3 of 4
©2017 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
TFA32 Series
Automotive Grade Tuning Fork Crystal
Packaging - Tape and Reel
Tape Drawing
Reel Drawing
Notes
1. Device quantity is 3k pieces maximum per 180mm reel.
2. Complete CTS part number, frequency value, date code and manufacturing site code information must appear
on reel and carton labels.
DOC# 008-0563-0 Rev. E
Page 4 of 4
©2017 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
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