HC-49SMD Crystal Unit
Low Profile Type (3.3mm)
MXP series
ELECTRICAL CHARACTERISTICS
Parameters
Characteristic
Nominal Frequency Range
3.579545 ~ 70.000 MHz
3.579545 ~ 31.999 MHz
32.000 ~ 70.000 MHz (standard frequencies)
20.0 pF (see options)
±30 ppm (see options)
±50 ppm (see options)
-20 ~ +70°C (see options)
-55 ~ +125°C
Fundamental
Operation Mode
3rd Overtone
Load Capacitance
Frequency Tolerance (at 25ºC)
Freq Stability over Oper Temp.
Operating Temperature
Storage Temperature
Drive Level
1 mW max. (100 µW typ.)
±5 ppm / year
Aging
Shunt Capactiance
7.0 pF max.
Insulation Resistance
Drive Level Dependency (DLD)
3.579545 ~ 4.999 Fund.
5.0 ~ 5.999 Fundamental
6.0 ~ 7.999 Fundamental
500 MΩ min. (@100Vdc ±15V)
1 µW ~ 500 µW (min. 7 points tested)
180 Ω max.
120 Ω max.
100 Ω max.
8.0 ~ 8.999 Fundamental
Equivalent Series
80 Ω max.
Resistance
9.0 ~ 9.999 Fundamental
10.0 ~ 15.999 Fundamental
16.0 ~ 31.999 Fundamental
32.0 ~ 70.000 3rd OT/AT
60 Ω max.
50 Ω max.
40 Ω max.
80 Ω max.
Packing Unit
1,000 pcs / 13” Reel
RECOMMENDED SOLDERING PROFILES
Reflow Condition
Temp. Min Ts(min)
150°C
Pre
Heat
Temp. Max Ts(max)
Time (min. to max.) (ts)
180°C
60~120 seconds
1°C/second max.
3°C/second max.
230°C
Average ramp up rate (TL) to peak
Ts(max) to TL (Ramp-up rate)
Temp. (TL)
Reflow
Time (min. to max.) (tL)
30~40 seconds
260°C
Peak Temperature (TP)
Time within 5°C of actual peak
Temperature (tp)
10 seconds max.
6°C/second
Ramp-down Rate
*Specifications subject to change without notice.
Rev.7a 12/20/2017
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