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

PIN 4

PIN 3

PIN 2

PIN 1

MARKING

AREA

0.6

.024

5.5

.217

0.6

.024

0.7

.028

4.8

.189

0.7

.028

SOLDER PAD LAYOUT

1.4

.055

1.4

.055

PIN 4

PIN 3

PIN 2

PIN 1

LEAD CONNECTION "C"

PIN 4

PIN 3

PIN 2

PIN 1

LEAD CONNECTION "D"

8.7

.343

SURFACE MOUNT TUNING FORK CRYSTAL UNIT

0

-10

25

60

TEMP

(°C)

f/fo

∆

(ppm)

-50

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

SERIES RSE A, B, C, D

RSE A, B

RSE C, D

HOLDER

TYPE

-

FREQUENCY

-

LOAD

CAPACITANCE

-

CIRCUIT

TYPE

-

TAPE AND REEL

RSE

IN KHz

6 OR 12.5 pF

A

B

C

D

TR

EXAMPLE: RSE-32.768-12.5-B-TR

FEATURES

SPECIFICATIONS

OUTLINE DRAWINGS

PACKAGING

REFLOW SOLDERING PROFILE

FREQUENCY VS. TEMPERATURE CURVE

PART NUMBERING SYSTEM

CARRIER TAPE DIMENSIONS

SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS

LOW FREQUENCY RANGE

EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING

NOMINAL FREQUENCY

32.768 KHz

24.00 TO 350.00 KHz

351.00 KHz TO 615.00 KHz

FREQUENCY TOLERANCE

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

TURNOVER TEMPERATURE

±25°C ±5°C

±25°C ±8°C

±25°C ±15°C

TEMPERATURE COEFFICIENT

(-0.035 ± 0.008) PPM/

∆ °C²

LOAD CAPACITANCE

6.0 TO 12.5 pF

EQUIVALENT SERIES

RESISTANCE (ESR)

50 K OHM MAXIMUM

50 K OHM MAXIMUM

20 K OHM MAXIMUM

DRIVE LEVEL

1.0 µW MAXIMUM

SHUNT CAPACITANCE

1.0 pF TYPICAL

0.95 pF TYPICAL

0.9 pF TYPICAL

AGING (FIRST YEAR)

±5 PPM MAXIMUM

OPERATING TEMPERATURE

RANGE

-40°C TO +85°C

STORAGE TEMPERATURE

RANGE

-55°C TO +125°C

SHOCK RESISTANCE

±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

SOLDER REFLOW CONDITIONS

230 °C MAXIMUM FOR 20 s MAXIMUM

PIN 4

PIN 3

PIN 2

PIN 1

10.41

.410

9.40

.370

2.7

.106

5.0

.197

2.7

.106

PIN 4

PIN 3

PIN 2

PIN 1

LEAD CONNECTION “A”

LEAD CONNECTION “B”

PIN 4

PIN 3

PIN 2

PIN 1

0.51

.020

2.29

.090

0.51

.020

2.54

.100

.100

2.54

SOLDER PAD LAYOUT

MARKING

AREA

3

Scale none Dimension in

mm

inch

PREHEATING

REFLOW

COOLING

230 °C

150 °C

25 °C

30 - 40 s

TIME (SECONDS)

15 - 20 s

1.5 DIA

.06 DIA

.16 ± .004

4.0 ± 0.1

4.3 ± 0.1

.170 ± .004

8.0 ± 0.1

.315 ± .004

2.0 ± 0.05

.079 ± .002

H

CAVITY HEIGHT "H"

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

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