ECX-1637
SMD CRYSTAL
The sub miniature ECX-1637 is a very compact SMD Crystal. The
2.0 x 1.6 x 0.45 mm ceramic package is ideal for todays SMD Request a Sample
manufacturing environment.
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
ECX-1637 SMD CRYSTAL
PARAMETERS CONDITIONS ECX-1637 UNITS
MIN TYP MAX
Frequency 16.000 80.000 MHz
Mode of Oscillation Fundamental
Frequency Tolerance* @ +25C 50 ppm
Frequency Stability* -20 ~ +70C 50 ppm
Shunt Capacitance Co 5 pF
Load Capacitance Specify in P/N 8 pF
Low Profile
Drive Level DL 100 W
2.0 x 1.6 mm Footprint
Operating Temperature* Topr -20 +70 C
Extended Temp. Range Option
RoHS Compliant
Storage Temperature Tstg -40 +85 C
Aging (First Year) @ +25C 3C 5 ppm
DIMENSIONS (mm)
Frequency (MHz) ESR Max.
16.000 ~ 23.999 100
24.000 ~ 25.999 80
26.000 ~ 39.999 60
40.000 ~ 80.000 50
Pad Connections
1 In/Out
2 Gnd
Figure 1) Top, Side, and Bottom
3 Out/In
Crystal is symmetrical, pad 1 & 3 are interchangeable.
4 Gnd
Chamfer on the bottom pad has no electrical
Figure 2) Suggested land
significance.
pattern
PART NUMBERING GUIDE: Example ECS-240-8-37-TR
ECS - FREQUENCY ABBREVIATION LOAD PACKAGE AVAILABLE OPTIONS PACKAGING
Tolerance Stability Temp Range
CAPACITANCE
240 = 24.000 MHz 8 = 8 pF Blank = Std Blank= Std Blank= Std
ECS -37 = TR =
A = 25 ppm
D= 100 ppm L = -10 ~ +70C
See P/N Guide 10 = 10 pF
Tape
ECX-1637
J = 20 ppm
E = 50 ppm M = -20 ~ +70C
S=Series
& Reel
R = 15 ppm G = 30 ppm Y = -30 ~ +85C
1K/Reel
C = 10 ppm
H = 25 ppm N = -40 ~ +85C
T = 20 ppm P = -40 ~ +105C
* Specify available options in P/N.
W = 15 ppm S = -40 ~ +125C
Contact ECS for availability over extended temp range.
Rev.2017
K = 10 ppm U = -55 ~ +125C
th
15351 West 109 Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com
ECX-1637
SMD CRYSTAL
POCKET TAPE DIMENSIONS (mm)
SOLDER PROFILE
Peak solder Temp +260C Max 10 sec Max.
DEVELOPED FREQUENCIES
2 Cycles Max.
Abbreviation Frequency (MHZ)
MSL 1, Lead Finish Au
160 16.000
200 20.000
240 24.000
260 26.000
270 27.000
300 30.000
320 32.000
360 36.000
400 40.000
Figure 1) Suggested Reflow Profile
th
15351 West 109 Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com