ECS ECX-1637-CKM Data Sheet

 Low profile
 2.0 x 1.6 mm Footprint
 Extended Temp Range Option
 RoHS Compliant

OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS

PARAMETERS CONDITIONS

Frequency Range
Frequency Tolerance
Frequency Stability
Shunt Capacitance
Load Capacitance
Drive Level
Operating Temperature
Storage Temperature
Aging (Per Year)

at +25°C

-20 to +70°C

Specify in P/N

@ +25°C ±3°C

MIN TYP

16.000 MHz

-20

-40

EQUIVALENT SERIES RESISTANCE/MODE OF OSCILLATION

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 today's
SMD manufacturing environment.

ECX-1637

MAX

80.000
± 50 *
± 50 *

5

8

100
+70
+85

±5

UNITS

ppm
ppm

pF
pF

µW

°C
°C

ppm

FREQUENCY RANGE (MHz) FREQUENCY RANGE (MHz) MODE OF OSCMODE OF OSC

16.00 ~ 23.999

24.00 ~ 25.999 40.000 ~ 80.000

Fundamental
Fundamental

100

80

26.000 ~ 39.999

Fundamental
Fundamental

MAX ESR ΩMAX ESR Ω

60
50

DIMENSIONS (mm)

Pad Connections

1

2

3

4

Figure 1) Top, Side, Bottom, End views and
Crystal Connection (Top View)

In/Out

Gnd

Out/In

Gnd

Figure 2) Suggested Land Pattern

Custom Options

PART NUMBERING GUIDE: Example ECS-240-8-37-TR

ECS - Frequency Abbreviation - Load Capacitance - Package Tolerance * Stability Temp Range - Packaging

240 = 24.000 MHz

See P/N Guide

1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com

8 =8 pF

S=Series

*Consult Factory for available stability
options over extended temp range.

37 =

ECX-1637

Blank = Std

A = ± 25 ppm

J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm

Blank = Std
D = ± 100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm
W = ± 15 ppm
K = ± 10 ppm

Blank = Std
L = -10 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C

TR= Tape

& Reel

1K/Reel

Rev. 1/14

Frequency Abbreviations

ECX-1637

SMD CRYSTAL

FREQUENCY

MHz

24.000

26.000

27.000

32.000

40.000

CODE

240
260
270
320
400

POCKET TAPE DIMENSIONS (mm)

Package Data

Item Description

Lid Metal

Base

Sealing

Terminal

Plating

RoHS

1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com

Ceramic

Seam/EB

Tungsten (metalized)

Gold/Nickel

Surface/Under

Compliant (Pb Free)