SM8T-32-FREQ1-20K1CC [PLETRONICS]

Parallel - Fundamental Quartz Crystal, 20MHz Min, 23MHz Max, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN;


型号：	SM8T-32-FREQ1-20K1CC
厂家：	PLETRONICS, INC.
描述：	Parallel - Fundamental Quartz Crystal, 20MHz Min, 23MHz Max, ROHS COMPLIANT, MINIATURE, SMD, 4 PIN
文件：	总6页 (文件大小：98K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SM8T Series

Miniature SMD Crystal

January 2008

• Pletronics’ SM8T Series is a miniature low

profile surface mount crystal.

• 20 MHz to 80 MHZ

• 1.6 x 2.0 mm 4 pad

• Package is ideal for automated surface mount

assembly and reflow practices.

• AT Cut Fundamental Crystal

• Ideal for use in hand held consumer products

• Tape and Reel packaging

Pletronics Inc. certifies this device is in accordance with the

RoHS 6/9 (2002/95/EC) and WEEE (2002/96/EC) directives.

Pletronics Inc. guarantees the device does not contain the following:

Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s

Weight of the Device: 0.02 grams

Moisture Sensitivity Level: 1 As defined in J-STD-020C

Second Level Interconnect code: e4

Electrical Specification:

Item

Min

Max

Unit

MHZ

ppm

Condition

Frequency Range

Calibration Frequency Tolerance

Frequency Stability

150

120

100

at +25^oC _+ 3^oC, see part number for options

see part number for available options

to 23 MHZ

ppm

Equivalent Series Resistance

(ESR)

Ohms

µW

to 26 MHZ

to 36 MHz

> 36 MHz

Drive Level

100

use 10 µW for testing

Pad to Pad capacitance

Shunt Capacitance (C0)

Aging at 25^oC _+ 3^oC

-5

ppm /Yr for the first year at +25^oC +_ 3^oC

-2

ppm /Yr after the first year at +25^oC +_ 3^oC

Operating Temperature Range

Storage Temperature Range

-40

+125

^oC

see part number for available specified

tolerance range options

-55

+125

160

140

120

100

AT Cut Crystal Frequency

versus Temperature

Typical Performance:

-20

-40

-60

-80

-100

-120

-140

-160

-60

-40

-20

100

120

Temperature (^oC)

Product information is current as of publication date. The product conforms

to specifications per the terms of the Pletronics standard warranty. Production

processsing does not necessarily include testing of all parameters.

SM8T Series

Miniature SMD Crystal

January 2008

Part Number:

SM8T -8

-25.0M

-50

1 G G -XX

See chart below for available options

Internal code or blank

Highest Specified Operating Temperature

A = 40^oC

B = 45^oC

C = 50^oC

D = 55^oC

E = 60^oC

F = 65^oC

G = 70^oC

H = 75^oC

J = 80^oC

K = 85^oC

L = 90^oC

M = 95^oC

N = 100^oC

P = 105^oC

R = 110^oC

S = 115^oC

T = 120^oC

U = 125^oC

Lowest Specified Operating Temperature

A = +10^oC

B = +5^oC

C = 0^oC

D = -5^oC

E = -10^oC

F = -15^oC

G = -20^oC

H = -25^oC

J = -30^oC

K = -35^oC

L = -40^oC

M = -45^oC

N = -50^oC

P = -55^oC

Fundamental mode AT cut crystal

Frequency Stability

See chart below

Calibration Frequency Tolerance (Typ. Values shown)

20 = _+ 20 ppm at 25^oC +_ 3^oC

50 = _+ 50 ppm at 25^oC _+ 3^oC (Standard)

Frequency in MHZ

Cload in pF

Parallel Resonance from 06 to 32 pF, 8 pF is standard

-or-

SR = Series Resonance

Model Number

Current production ranges are shown below.

Available Frequency Stability versus Temperature in ppm

Operating

Temperature Range

+_ 50

+_ 100

+_ 150

_+ 3.0

_+ 5.0

+_ 8.0

+_ 10

+_ 15

+_ 20

+_ 30

CODE

0 to +45^oC

0 to +50^oC

0 to +60^oC

0 to +70^oC

STD

-10 to +50^oC

-10 to +60^oC

-10 to +75^oC

-20 to +70^oC

-20 to +75^oC

-30 to +75^oC

-30 to +80^oC

-30 to +85^oC

-35 to +80^oC

-40 to +85^oC

www.pletronics.com

425-776-1880

SM8T Series

Miniature SMD Crystal

January 2008

Marking and Packing Information

The part will be marked

PFFM

YMDx

• Marking consists of the frequency “FF” which will be truncated to the first two digits due to package size.

• Date code consists of Year, Month and Day (see codes below)

• The x is an internal PLE production code

• Orientation of marking may be mixed on the tape

• Traceability of part is lost once removed from reel

Codes for Date Code (Month Year)

Code

2006

2007

2008

2009

2010

2011

2012

Year

Code

Month

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Package Labeling

Label is 1" x 2.6" (25.4mm x 66.7mm)

Font is Courier New

Label is 1" x 2.6" (25.4mm x 66.7mm)

Font is Arial

Bar code is 39-Full ASCII

(Label will show SM8T)

Reliability: Environmental Compliance

Parameter

Condition

Mechanical Shock

Vibration

MIL-STD-883 Method 2002, Condition B

MIL-STD-883 Method 2007, Condition A

MIL-STD-883 Method 2003

Solderability

Thermal Shock

MIL-STD-883 Method 1011, Condition A

www.pletronics.com

425-776-1880

SM8T Series

Miniature SMD Crystal

January 2008

Mechanical:

Inches

0.063 +_ 0.004

0.079 +_ 0.004

0.018 +_ 0.004

1.6 +_ 0.1

2.0 +_ 0.1

0.45 +_ 0.1

0.45

D¹0.018

E¹0.004

0.1

F¹

0.020

0.5

G¹0.022

H¹0.028

0.55

0.7

Contacts :

J¹

0.004

0.1

Gold 11.8 µinches 0.3 µm minimum over

Nickel 50 to 350 µinches 1.27 to 8.89 µm

Not to Scale

¹Typical dimensions

Connection (top view):

Pad 2 and Pad 4 are common and connected

to the metal cover. They are not connected to

the crystal.

Layout and application information

• Trace lengths to the crystal should be kept as short as possible.

• The crystal connections are sensitive to noise.

• The package should be grounded for optimum performance, pad 2 and/or pad 4 connected to ground.

www.pletronics.com

425-776-1880

SM8T Series

Miniature SMD Crystal

January 2008

Reflow Cycle (typical for lead free processing)

260°C Maximum

10 Seconds Maximum

250

215°C±10°C

200

175°C±10°C

150

100

Approximately 50 Seconds

120 to 160 Seconds

Allowed rate of temperature change

Maximum 4°C per second

The part may be reflowed 2 times without degradation.

Tape and Reel: available for quantities of 250 to 3000 per reel (<1000 will be cut tape)

Constant Dimensions Table 1

Max

Tape

Size

Min

Max

8mm

12mm

16mm

24mm

1.0

1.5

2.0

_+0.05

1.5

1.75

+_0.1

4.0

0.6

0.25

0.1

+0.1

-0.0

_+0.1

2.0

+_0.1

Variable Dimensions Table 2

Tape

Size

Max

E2 Min

6.4

Max

Ao, Bo &

8 mm

3.5

1.7 +_0.1

4.0 +_0.1

1.0

8.9

Note 1

Note 1: Embossed cavity to conform to EIA-481-B

Dimensions in mm

Not to scale

REEL DIMENSIONS

inches

7.0

177.8

2.50

63.5

10.0

254.0

13.0

330.2

3.75

95.3

inches

4.00

101.6

Tape

Width

13.0 +0.5 / -0.2

8.4

8.0

+2.0

-0.0

+2.0

-0.0

+2.0

-0.0

Reel dimensions may vary from the above

www.pletronics.com

425-776-1880

SM8T Series

Miniature SMD Crystal

January 2008

IMPORTANT NOTICE

Pletronics Incorporated (PLE) reserves the right to make corrections, improvements, modifications and

other changes to this product at anytime. PLE reserves the right to discontinue any product or service

without notice. Customers are responsible for obtaining the latest relevant information before placing

orders and should verify that such information is current and complete. All products are sold subject to

PLE’s terms and conditions of sale supplied at the time of order acknowledgment.

PLE warrants performance of this product to the specifications applicable at the time of sale in accordance

with PLE’s limited warranty. Testing and other quality control techniques are used to the extent PLE

deems necessary to support this warranty. Except where mandated by specific contractual documents,

testing of all parameters of each product is not necessarily performed.

PLE assumes no liability for application assistance or customer product design. Customers are

responsible for their products and applications using PLE components. To minimize the risks associated

with the customer products and applications, customers should provide adequate design and operating

safeguards.

PLE products are not designed, intended, authorized or warranted to be suitable for use in life support

applications, devices or systems or other critical applications that may involve potential risks of death,

personal injury or severe property or environmental damage. Inclusion of PLE products in such

applications is understood to be fully at the risk of the customer. Use of PLE products in such applications

requires the written approval of an appropriate PLE officer. Questions concerning potential risk

applications should be directed to PLE.

PLE does not warrant or represent that any license, either express or implied, is granted under any PLE

patent right, copyright, artwork or other intellectual property right relating to any combination, machine or

process which PLE product or services are used. Information published by PLE regarding third-party

products or services does not constitute a license from PLE to use such products or services or a warranty

or endorsement thereof. Use of such information may require a license from a third party under the

patents or other intellectual property of the third party, or a license from PLE under the patents or other

intellectual property of PLE.

Reproduction of information in PLE data sheets or web site is permissible only if the reproduction is

without alteration and is accompanied by associated warranties, conditions, limitations and notices.

Reproduction of this information with alteration is an unfair and deceptive business practice. PLE is not

responsible or liable for such altered documents.

Resale of PLE products or services with statements different from or beyond the parameters stated by

PLE for that product or service voids all express and implied warranties for the associated PLE product or

service and is an unfair or deceptive business practice. PLE is not responsible for any such statements.

Contacting Pletronics Inc.

Pletronics Inc.

Tel: 425-776-1880

19013 36^thAve. West

Lynnwood, WA 98036-5761 USA

Fax: 425-776-2760

E-mail: ple-sales@pletronics.com

URL: www.pletronics.com

PLETRONICS INC. DOCUMENT CONTROL

www.pletronics.com

425-776-1880

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