CC7A-T1A0 pages

CC7A-T1A

AT Crystal 24 MHz – 50 MHz
DIMENSIONS
Package:

Recommended Solder Pad:

3,2

1,5

1,0

1,8

0,7

max.0,90

1,5

0,7

1,0

All dimensions in mm typical

100% leadfree, RoHS - compliant
Ultra miniature suitable for
implantable medical application
SMT ceramic package package height
0.9 mm add 0.75mm on request
Fundamental mode up to 50MHz
Ind. and Ext. temperature ranges
High stability and low aging
High shock and vibration resistance
Hermetically sealed
Ultra low MSL
Excellent solderability
Swiss made quality
Customer specification on request

ELECTRICAL CHARACTERISTICS
AT 25oC:

DESCRIPTION:
This quartz Crystal in SMD ceramic package has been specially designed
with Micro Crystal photolitographic process for surface mount using
infrared, vapor phase or epoxy technics
Applications:
-t Implantable medical devices (Peacemakers, Defibrillators, Pumps)
-t Optical nerwork
-t Satellite communications
-t Airborne equipments
-tTelemetry
The crystals are supplied in trays (288 crystals per tray).
For pick-and-place equipment, the parts are available in 12mm tapes:
t
7”twith 1’000 crystals
t
7”twith 3’000 crystals
Frequency Range

FL

24 – 50

MHz

Load capacitance

1)

CL

3.0 / 9.0 / 16.0

pF

Frequency tolerance at +25°C

2)

ΔF/F

+/-50

ppm

Frequency versus temperature
t
TB: –40 to +t85°C
t
TC: –55 to +t125°C

3)

ΔF/F0

+/-50
+/-100

ppm

Drive level typ/max

P

100/250

µW

Insulation resistance min.

Ri

500

MΩ

ΔF/F

+/-3

ppm

Aging first year max.

1) Other load capacitances on request; e.g. CL: 20 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

Frequency [MHz]

Rs[Ω]
typ/max

C1 [fF]
typ/max

Co [pF]
typ

24 to < 50

60 / 100

1/3

0.7