Data Sheet

ECX-71
SMD TUNING FORK CRYSTAL
The miniature ECX-71 is a very compact SMD Tuning
Fork Crystal. The 7 x 1.5 x 1.4 mm plastic package is ideal
for today's SMD manufacturing environment.
1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com
PARAMETERS CONDITIONS
MIN TYP MAX
ECX-71
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
UNITS
Reflow Profile
First Year Aging
Operating Temperature
Storage Temperature
Shunt Capacitance
Temperature Coefficient
Frequency FO
@ +25°CFrequency Tolerance
Load Capacitance
Drive Level
Equivalent Series Resistance
Turnover Temperature
Specify in P/N
DL
R1
Co
+25°C ±3°C
Topr
Tstg
IR Reflow (5 Sec Max)
± 20
1.0
65K
+30
-0.045
± 3
+85
+125
+260
+20
-0.025
-40
-55
32.768
12.5
0.1
+25
-0.035
0.8
KHz
ppm
pF
μW
ȍ
°C
ppm/°C²
pF
ppm
°C
°C
°C
TOP, BOTTOM, SIDE VIEWS & LAND PATTERN
PART NUMBERING GUIDE: Example ECS-.327-12.5-38-TR
X Low Profile
X 7 x 1.5 mm Footprint
X Extended Temp. Range 
X RoHS Compliant
ECS - Frequency Abbreviation - Load Capacitance - Package Type - Packaging
.327 = 32.768 KHz
12.5 = 12.5 pF
7 = 7 pF
-38 = ECX-71
-TR = Tape & Reel
3K/Reel
+25
Figure 1) Top, Side and End View
Figure 2) Bottom View and Suggested Land
Figure 3) Parabolic Temp Curve