Drawing Specifications
Thru-Hole Crystal
HC-49U
Frequency Range: 1.8432 MHz to 125.0 MHz
Electrical Specifications
Creating a Part Number
HC-49U
- 10.00 - 20 - F - A - XX
Holder Type
Frequency (MHz)
Load Capacitance
XXpF; S: Series Resonant
Mode of Operation
F: AT-Cut Fundamental
T: 3rd Overtone
V: 5th Overtone
Available Options
Blank = None (std) S = Insulator Tab
P = Third Lead L = Custom Lead Length
TR = Tape & Reel
Frequency Tolerance/Temperature Stability
at 25° (Ref to 25°C)
A: ±30 ppm/±30 ppm -20°C to 70°C
B: ±10 ppm/±10 ppm -20°C to 70°C
C: ±15 ppm/±30 ppm -20°C to 70°C
D: ±50 ppm/±50 ppm -20°C to 70°C
E: ±30 ppm/±30 ppm -40°C to 85°C
F: ±50 ppm/±50 ppm -40°C to 85°C
G: ±50 ppm/±100 ppm -40°C to 85°C
HC-49U
Thru-Hole Crystal
Size, mm
11.5 x 5.0 x 13.5
Frequency Stability
±15 PPM
Temperature Range
-20°C to 70°C
Frequency Range
1.8432-125.0 MHz
Features
• Meets NEL requirements for
product reliability
• Resistance welded low
profile holder
• Frequency range 1.8432
MHz to 125.0 MHz
• Special frequencies available
Dimensions shown in millimeters.
Frequency Range (F
O
) 1.8432 MHz to 125.000 MHz
Storage Temperature Range (T
STG
) -40°C to 85°C
Shunt Capacitance (C
O
) 7 pF Max.
Load Capacitance (C
L
) 10 to 32 pF or Series Resonant
Insulation Resistance 500 Megaohms Minimum at 100 VDC
Drive Level 1 mWatts Max.
Aging (at 25°C) ±5 ppm/year Max.
Equivalent Series Resistance Frequency Range E.S.R. (Ω) Max
Mode: Fundamental 1.800 to 1.999 MHz 650
Mode: Fundamental 2.000 to 2.999 MHz 500
Mode: Fundamental 3.000 to 3.499 MHz 250
Mode: Fundamental 3.500 to 3.999 MHz 150
Mode: Fundamental 4.000 to 4.999 MHz 100
Mode: Fundamental 5.000 to 5.999 MHz 80
Mode: Fundamental 6.000 to 7.999 MHz 50
Mode: Fundamental 8.000 to 12.999 MHz 35
Mode: Fundamental 13.000 to 30.999 MHz 25
Mode: 3rd Overtone 24.000 to 29.999 MHz 60
Mode: 3rd Overtone 30.000 to 80.000 MHz 40
Mode: 5th Overtone 70.000 to 125.000 MHz 90
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specifications on each NEL
product, log on to our
website—www.nelfc.com