Specifications subject to change without notice

Revision WCSMC061509H

WCSMC Series Crystal

4 Pad Ceramic SMD Package

Tuning Fork Crystal

Tight Tolerance and Stability

Tape and Reel Packaging

ELECTRICAL SPECIFICATIONS:

Frequency

32.768kHz

Frequency Tolerance

See Part Number Guide Below

Turnover Temperature (To)

25°C ±5°C

Frequency Stability

-0.034(±0.006)ppm/°C

Operating Temperature Range

-40°C to +85°C

Storage Temperature

-55°C to +125°C

Shunt Capacitance

1.35pF Typ

Motional Capacitance

3.0fF Typ

Equivalent Series Resistance (ESR)

50K Ohms

Load Capacitance

12.5pF or 6pF

Drive Level

1µW max

Capacitance Radio (CO/C1)

450 Typ

Aging

±3ppm / 1

Insulation Resistance

500 Mega ohms Min at 100VDC ±15VDC

Hermeticity of Seal

1 x 10

Shock Resistance

±5ppm max (drop test onto a hard wooden board from 75cm)

Moisture Sensitivity Level

3

MECHANICALS DETAIL:

8.00 [.315]

MAX

3.20 [.126]

MAX

0.50 [.020]

5.50 [.217]

3.80 [.150]

MAX

2.54 [.100]

MAX

0.90 [.035]

1.30 [.051]

1.90 [.075]

4.20 [.165]

1.30 [.051]

12

3

43

4

12

INTERNAL CONNECTION

RECOMMENDED

LAND PATTERN

DIMENSION IN BRACKETS

ARE IN INCHES

PART NUMBER GUIDE:

32.768KHZ

Please consult with MMD sales department for any other parameters or options.

WCSMC

Frequency Tolerance

Blank = ±20 ppm

C = ±10 ppm

B = ±5 ppm

Load Capacitance

RoHS Compliant

Blank = Not Compliant

F = Is Compliant

Blank = No Added Options

T = Tape and Reel

Value Added Options

Blank = 12.5pF

6 = 6pF

MMD Components, 30400 Esperanza, Rancho Santa Margarita, CA, 92688

Sales@mmdcomp.com