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ECX-31B Series Datasheet

ECS Inc.

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Datasheet

15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
PARAMETERS
CONDITIONS
ECX-31B
UNITS
MIN
TYP
MAX
Frequency
32.768
KHz
Frequency Tolerance
@ +25°C
± 20 *
ppm
Temperature Coefficient
-0.028
-0.034
-0.040
ppm/°C²
Shunt Capacitance
Co
1.05
pF
Load Capacitance
Specify in P/N
12.5
pF
Drive Level
DL
0.1
1.0
μW
Equivalent Series Resistance
R1
70K
Ω
Insulation Resistance
@ 100V DC
500M
Ω
Turnover Temperature
+20
+25
+30
°C
Operating Temperature
Topr
-40
+85
°C
Storage Temperature
Tstg
-55
+125
°C
Aging (First Year)
@ +25°C ±3°C
±3
ppm
LOAD
CAPACITANCE
PACKAGE
CUSTOM OPTIONS
Tolerance
PACKAGING
PAD CONNECTIONS
1
In/Out
2
Out/In
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
The ultra-miniature ECX-31B is a very compact SMD Tuning Fork
Crystal. The 3.2 x 1.5 x 0.9 mm ceramic package is ideal for
today’s SMD manufacturing environment.
ECX-31B
SMD CRYSTAL
ECX-31B SMD CRYSTAL
Low Profile
3.2 x 1.5 mm Footprint
Extended Temp. Range
RoHS Compliant
DIMENSIONS (mm)
PART NUMBERING GUIDE: Example ECS-.327-12.5-34B-TR
Figure 2) Suggested Land Pattern
Figure 1) Top, Side, and Bottom views
.327 = 32.768 KHz
12.5 = 12.5 pF
9 = 9 pF
7 = 7 pF
-34B = ECX-31B
Blank = ±20 ppm
* C = ± 10 ppm
TR = Tape
& Reel
3K/Reel
Rev.2016
ECS
*Contact ECS for availability
Request a Sample
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
SOLDER PROFILE
Peak solder Temp +260°C Max 10 sec Max.
2 Cycles Max.
MSL 1, Lead Finish Au
POCKET TAPE DIMENSIONS (mm)
ECX-31B
SMD CRYSTAL
Figure 1) Suggested Reflow Profile

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