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參數資料
| 型號： | 49SMLB280B(T) |
| 廠商： | PERICOM SEMICONDUCTOR CORP |
| 元件分類： | 晶體 |
| 英文描述： | QUARTZ CRYSTAL RESONATOR, 28 MHz |
| 文件頁數： | 1/2頁 |
| 文件大小： | 73K |
| 代理商： | 49SMLB280B(T) |
49SMLB / SAB / SUB / SNC
Miniature Quartz Crystal
SaRonix
Technical Data
HC-49, Low Profile, SMD
DS-153
REV E
Frequency Range:
Temperature Range:
Operating:
Storage:
-20 to +70°C (-40 to +85°C available)
-55 to +125°C
Frequency
Stability Tolerance:
±50 ppm -20 to +70°C (0 to -100 ppm for BT)
Characteristics at 25°C ±2°C:
±50 ppm (tighter available)
16 pF to 32 pF or series resonance
30 to 200
(frequency dependent)
25W correlation, 500W max
7pF max
Frequency Calibration
Tolerance:
Load Capacitance:
Effective Series Resistance:
Drive Level:
Shunt Capacitance:
Description
The crystals are miniature AT or BT cut
strip resonators housed in low profile
packages for surface mounting. The parts
present a proven metal package techno-
logy with a precision molded base and
universal contact configuration.
ACTUAL SIZE
Mechanical:
MIL-STD-883, Method 2002, Condition B
MIL-STD-883, Method 2003
MIL-STD-202, Method 211, Conditions A and C
MIL-STD-883, Method 2007, Condition A
MIL-STD-202, Method 215
MIL-STD-202, Method 210, Condition I or J
Shock:
Solderability:
Terminal Strength:
Vibration:
Solvent Resistance:
Resistance to Soldering Heat:
Cooling
Preheat 183 ±10°C
4°C/sec max
Reflow 240 max
250
4°C/sec max
Temperature
–
°C
10 sec max
1 – 2 minutes
Time
150
200
Applications & Features
Low profile SMD
AT or BT cut performance
Resistance weld seal
49SNC is interchangable with popular
molded crystal configurations
Available on tape & reel; 24mm tape,
1000pcs per reel
Solder Reflow Guide
Lead Configurations
49SUB
49SNC
49SAB
49SMLB
1
4
2
3
Environmental:
Gross Leak Test:
Fine Leak Test:
Thermal Shock:
Moisture Resistance:
MIL-STD-883, Method 1014, Condition C
MIL-STD-883, Method 1014, Condition A
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
Part Numbering Guide:
49 SUB XXX
–
XX (T)
Package
SMLB = 2 contact, 4mm height
SAB = 4 contact, 5mm height
SNC = 4 contact, 5mm height
SUB = 6 contact, 5mm height
Series
CL (Load Capacitance)*
B for BT cut, 26.8 to 50 MHz
– for AT cut
Frequency Designator
*If no CL value is specified, crystal is calibrated for series resonance.
Example: 49SAB120 (Part marked: S120)
If CL value is specified, crystal is calibrated for parallel resonance.
Example: 49SUB073-20 (Part marked: S073-20)
SaRonix
141 Jefferson Drive Menlo Park, CA 94025 USA 650-470-7700 800-227-8974 Fax 650-462-9894
3.2 MHz to 80 MHz
3.2 to 29.999 MHz, AT Fundamental
26.8 to 50.000 MHz, BT Fundamental
30 .0 to 80.000 MHz, AT 3rd OT
(T) = Tape & Reel
full reel increments only
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