Pl tronics, Inc.
.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
LP Crystal Series
HC-49/US Low Profile Metal Thru-Hole Crystals
Available in 3 heights, LP49: 3.5mm, LP24: 2.5mm, LP21: 2.1mm
and with 3rd Case Pin: 3LP49
–
3.000 MHz 70.000 MHz
Standard Specifications
°
± 30 PPM is standard, tighter tolerances available
Calibration Frequency Tolerance at 25 C
Operating Temperature Range (OTR)
Frequency Stability (FS) over OTR
Drive Level
Aging at 25°C
Shunt Capacitance
0 to +70°C is standard, but can be extended to -40 to +85°C
± 50 PPM is standard, tighter tolerances available
50 μW is standard, customer may specify
± 5 PPM per year is standard, customer may specify ± 1 PPM
7 pF maximum
Pullability
May be specified by customer in terms of frequency shift required over a certain range of load capacitance
(e.g. +100 PPM from CL=12 to CL=18 pF) or as motional capacitance ( f F )
Part Numbering Guide
ESR Values
Portions of the part number that appear after the frequency may not
be marked on part (C of C provided)
Oscillation
Mode
Frequency Range
(MHz)
Maximum
ESR (Ohms)
LP49 B E - xx - 70.0M - IN XXX (Internal Code or blank)
–
Fundamental
AT Cut
200
150
120
100
80
3.000
4.000
5.000
6.000
7.000
3.999
4.999
5.999
6.999
7.999
–
–
–
–
–
Options
Model (Height)
IN = Insulator
TR = Paper Tape & Reel
PN = Put on Pads
LP49: 3.56mm
LP24: 2.5mm
LP21: 2.1mm
3LP49: case pin,
3.56mm
50
40
8.000 12.999
Frequency in MHz
Load Capacitance
–
13.000 30.000
Parallel Resonance in pF (3 10 pF)
SR = Series Resonance
3rd Overtone
AT Cut
–
100
25.000
70.000
Cal Tol / Freq Stability
Blank = 30/50
Temperature Range
B = 30/30
C = 15/30
D = 10/20 (consult factory)
Blank: 0 to +70°C
E: - 40 to +85°C
H: - 20 to +70°C
Consult factory for lower ESR
Consult factory for available frequencies and specs.
Not all options available for all frequencies. A special part number may be assigned.
3LP49
Mechanical: inches (mm)
not to scale
Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code.
.425 (10.8) MAX
.425 (10.8) MAX
Packaging
Bulk
.176 (4.47) MAX
.176 (4.47) MAX
LP49: .140 (3.56)
LP24: .100 (2.5)
LP21: .082 (2.1)
.140 (3.56)
.017 (.43) Diameter
Center lead is case ground
.192 (4.88)
Jan 2006
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple-sales@pletronics.com, www.pletronics.com
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