Datasheet > RSEC

RSEC

更新时间： 2024-09-23 03:35:51

品牌	Logo	应用领域
纬创 - RALTRON		晶体
页数	文件大小	规格书
1页	43K
描述
SURFACE MOUNT TUNING FORK CRYSTAL UNIT

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RSEC 数据手册

SURFACE MOUNT TUNING FORK CRYSTAL UNIT

SERIES RSE A, B, C, D

FEATURES

SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS

LOW FREQUENCY RANGE

EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING

SPECIFICATIONS

NOMINAL FREQUENCY

32.768 KHz

24.00 TO 350.00 KHz

351.00 KHz TO 615.00 KHz

FREQUENCY TOLERANCE

TURNOVER TEMPERATURE

TEMPERATURE COEFFICIENT

LOAD CAPACITANCE

±20 PPM MAXIMUM (±50 PPM AND ±100 PPM AVAILABLE)

±25°C ±5°C

±25°C ±8°C

±25°C ±15°C

(-0.035 ± 0.008) PPM/ ∆ °C²

6.0 TO 12.5 pF

EQUIVALENT SERIES

RESISTANCE (ESR)

50 K OHM MAXIMUM

1.0 pF TYPICAL

50 K OHM MAXIMUM

20 K OHM MAXIMUM

0.9 pF TYPICAL

DRIVE LEVEL

1.0 µW MAXIMUM

0.95 pF TYPICAL

±5 PPM MAXIMUM

SHUNT CAPACITANCE

AGING (FIRST YEAR)

OPERATING TEMPERATURE

RANGE

-40°C TO +85°C

-55°C TO +125°C

STORAGE TEMPERATURE

RANGE

±5 PPM MAXIMUM 75 cm DROP TEST IN 3 AXES ONTO A HARD SURFACE OR

3000 g x 0.3 ms x ½ SINEWAVE IN 3 AXES

SHOCK RESISTANCE

SOLDER REFLOW CONDITIONS

230 °C MAXIMUM FOR 20 s MAXIMUM

OUTLINE DRAWINGS

Scale none Dimension in

RSE A, B

RSE C, D

PIN 4

PIN 1

PIN 3

PIN 2

inch

PIN 4

PIN 3

PIN 2

PIN 4

PIN 3

PIN 2

MARKING

AREA

MARKING

AREA

PIN 4

PIN 1

PIN 3

PIN 2

9.40

.370

10.41

.410

2.7 5.0

2.7

8.7

0.7

.028

4.8

.189

PIN 1

0.7

.028

PIN 1

.106 .197 .106

.343

LEAD CONNECTION “A”

LEAD CONNECTION "C"

SOLDER PAD LAYOUT

PIN 4

PIN 3

PIN 4

PIN 1

PIN 3

PIN 2

0.51

.020

2.29

.090

0.51

.020

0.6

.024

0.6

.024

1.4

.055

1.4

.055

2.54

.100

2.54

.100

PIN 1

PIN 2

LEAD CONNECTION “B”

5.5

.217

LEAD CONNECTION "D"

CARRIER TAPE DIMENSIONS

REFLOW SOLDERING PROFILE

REFLOW

1.5 DIA

.06 DIA

2.0 ± 0.05

4.0 ± 0.1

230 °C

.16 ± .004

.079 ± .002

COOLING

PREHEATING

150 °C

15 - 20 s

25 °C

4.3 ± 0.1

8.0 ± 0.1

CAVITY HEIGHT "H"

30 - 40 s

RSE "A AND B" = 4.0 mm/.157 in

RSE "C AND D" = 3.0 mm/.118 in

.170 ± .004

.315 ± .004

TIME (SECONDS)

PACKAGING

330mm REEL DIAMETER

16mm TAPE WIDTH, 8mm PITCH

QUANTITY: RSE A OR B 2000 PIECES PER REEL

RSE C OR D 3000 PIECES PER REEL

FREQUENCY VS. TEMPERATURE CURVE

-10

TEMP

(°C)

PART NUMBERING SYSTEM

HOLDER

TYPE

LOAD

CAPACITANCE

CIRCUIT

TYPE

FREQUENCY

TAPE AND REEL

-50

RSE

IN KHz

6 OR 12.5 pF

∆ f/fo (ppm)

EXAMPLE: RSE-32.768-12.5-B-TR

Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.

Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com

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