CRYSTAL UNIT
HC-49SMD/SSMD
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Applications
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Industrial Control
Consumers .
Features
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Dimensions:49SMD:11.5 x 4.80 x3.8 mm.
49SSMD:11.5 x 4.80 x3.0 mm.
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Surface mount type crystal units.
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A great number of standard frequencie
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Standard Frequency
3.2768~64 MHz
Vibration Mode
AT Fundamental
Load Capacitance
12pF,20pF,or specify
Frequency Tolerance (at 25 )
±10ppm,±20ppm,or specify
Frequency Versus Temperature Characteristics
±20ppm,or specify
Operating Temperature
-20~+70℃，-40~+85℃，or specify
Storage Temperature
-40~+85℃ or specify
Shunt Capacitance
7 pF Max.
Level of Drive
1~500μWMax.(100uW typical)
Aging (at 25 ℃ )
±3ppm/year Max.
Fundamental
3.2768 ~ 4MHz 180 Ω Max. 6 ~ 7 MHz 80 Ω Max.
4 ~ 5MHz 120 Ω Max. 7 ~ 10 MHz 60 Ω Max.
5 ~ 6 MHz 100 Ω Max. 10 ~ 27MHz 40 Ω Max.
3rd Overtone
20 ~ 25 MHz 100 Ω Max. 25 ~ 64 MHz 80 Ω Max.
Package Size – Dimensions (Unit: mm)
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CRYSTAL UNIT
HC-49SMD/SSMD
第
2
页 共
2
页
Reflow Soldering Profile
Taping Specification(Unit: mm)
Size A B C D E F G H
49SMD 330±2.0 24.0±0.3 11.90±0.1 5.00±0.1 8.0±0.1 4.25±0.2 100.0±1.0 24.5±1.0
49SSMD 330±2.0 24.0±0.3 11.80±0.1 5.00±0.1 8.0±0.1 3.50±0.2 100.0±1.0 24.5±1.0
1000 pcs per reel
Pre Heating Temperature
Tp1 ~ Tp2 = + 170 °C
Heating Temperature
TMlt = + 220 °C
Peek Temperature
TMax. = + 260 °C
Temperature
+260℃
TMax.
+220℃
Tmlt
Point of measuring
In case of Solder ability
Terminal.
In case of Resistance to soldering heat
Surface.
T
p2
Tp1
35s
100s
t(time)
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