Version 1.2/04.2009

DIMENSIONS

CC7A-T1A

AT Crystal 24 MHz – 30 MHz

0,7

0,7

3,2

1,5

1,0

1,0

Package:

Recommended Solder Pad:

All dimensions in mm typical

DESCRIPTION:

This SMD ceramic package has been specially designed for small,

implantable medical, industrial, telecom and electronic applications.

All frequencies are generated in fundamental mode.

The crystals are supplied in special trays (200 crystals per tray).

For pick-and-place equipment, the parts are available in 12 mm tapes:

7” (178 mm) reel with 3’000 crystals

13” (330 mm) reel with 14’000 crystals

Suitable for implantable medical

applications

Small SMT ceramic package

Package height 0.9 mm

Fundamental mode frequencies

SMD-package in Tape and Reel

Ind. and Ext. temperature ranges

High stability, low ageing

High shock and vibration resistance

1) Other load capacitances on request; e.g. CL: 3.0 pF / 9.0 pF / 16.0 pF

2) Tighter and wider frequency tolerances on request; e.g. +/-20 ppm

3) Tighter thermal stability on request; e.g. +/-10 ppm from 0°C to +55°C

ELECTRICAL CHARACTERISTICS

Frequency Range

24–30

MHz

Load capacitance

1)

20.0

pF

Frequency tolerance at 25°C

2)

ΔF/F

+/-50

ppm

B: –40°C to + 85°C

C: –55°C to +125°C

+/-50

+/-100

ppm

Drive level typ/max

P

100/250

μW

Insulation resistance min.

500

M

Ω

Frequency [MHz]

Rs[Ω]

typ/max

C1 [fF]

typ/max

Co [pF]

typ

24 to < 30

60/100

1/3

0.7

100% leadfree, RoHS - compliant