C195-SMD Datasheet, PDF (1/1 Pages) Crystek Corporation – 32.768KHz Ceramic SMD

C195-SMD Model
32.768KHz Ceramic SMD Package
Frequency:
32.768KHz
LeaCRdooFmHrpeSleiant
Calibration Tolerance: ±20ppm Max
Turnover Temperature: 25°C ±5°C
Frequency vs Temp.: -0.034 ±0.006ppm/°C²
(See Chart 1)
Operating Temp. Range: -40°C to 85°C
Storage:
-55°C to 125°C
ESR:
70K ohm Max
Load Capacitance:
12.5pF Typ.
Motional Capacitance: 0.003pF Typ.
Shunt Capacitance:
1.33pF Typ.
Drive Level:
1uW Max
Insulation Resistance: 500M ohm Min, DC100V±15V
Aging (1st yr)
±3ppm Max
Crystal package to meet
today's demand for pick
and place processing.
Available on tape and reel
in quantities of 3K for SMT
placement.
0.193 ±0.006
(4.90 ±0.15)
0.071 ±0.006
(1.80 ±0.15)
0.021
(0.53)
0.039
(1.0 Max)
Dimensions inches (mm)
All dimensions are Max unless otherwise specified.
C195-SMD
0.156
(3.95)
0.126
(3.2)
0.063
(1.6)
0.030
(0.75)
Internal Connection
Solder Pad Layout
0.051
(1.30)
0.114
(2.90)
0.051
(1.30)
Do not design
any patterns in
this area
0.087
(2.2)
RECOMMENDED REFLOW SOLDERING PROFILE
260°C
217°C
Ramp-Up
3°C/Sec Max.
Critical Temperature
Zone
Ramp-Down
6°C/Sec.
200°C
150°C
Preheat
180 Secs. Max.
8 Minutes Max.
90 Secs. Max.
260°C for
10 Secs. Max.
NOTE: Reflow Profile with 240°C peak also acceptable.
Chart 1
Typical Temperature Characteristic
0
-50
-10 0
25
60
Temperature °C
Specifications subject to change without notice. TD-060402 Rev.C