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HC49/4H Crystals
ISSUE 12; 29 SEPTEMBER 2004 Delivery Options
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Outline in mm - HC49/4H & HC49/4H-3L
4.0 max 4.0 max ∅0.45 4.88±0.2 = = 1 2 3 11.05 4.7 12.7 min
Common frequencies may be available from stock Lower height holders available please contact sales office
∅0.45
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12.7 min
Holder Style
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HC49/4H crystals are resistance welded, hermetically sealed in an inert atmosphere with glass to metal seals securing the lead wires Holders suffixed ‘–3L have a centre third wire which grounds the case
4.88±0.2
Pin connections 1. Crystal 2. Case & GND 3. Crystal
LEADED QUARTZ CRYSTALS
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11.05 max
General Specifications
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Load Capacitance (CL): 10pF to 75pF or Series Drive Level: 500µW max. Static Capacitance (C0): 7pF max. Ageing: ±5ppm typical per year, ±1ppm available on request Typical Frequency vs Temperature Curves for various angles of AT-cut crystals +25
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Standard Frequency Tolerances and Stabilities
∆f/f0 (ppm)
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±10ppm, ±20ppm, ±30ppm, ±50ppm, ±100ppm, tighter tolerances and stabilities available on request.
0
Operating Temperature Ranges
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0 to 50°C –10 to 60°C –20 to 70°C
–30 to 80°C –40 to 90°C –55 to 105°C
Storage Temperature Range
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–55 to 125°C
–25 –50
4.7
–20
Environmental Specification
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+25 Temperature (°C)
+70
+100
Shock: 981m/s2 for 6ms, three shocks in each direction along three mutually perpendicular planes Vibration: 10 to 60Hz 0.75mm displacement, 60 to 500Hz 98.1m/s2 acceleration, 30 minutes in each of three mutually perpendicular planes
Typical Frequency vs Temperature Curves for various angles of BT-cut crystals
+10 0 ∆f/f0 (ppm) –50 –50
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Marking
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Frequency only
Minimum Order Information Required
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Frequency + Holder + Frequency Tolerance @ 25°C + Frequency Stability + Operating Temperature Range + Circuit Condition + Overtone Order + Tape & Reel Packaging Available
–20
+25 Temperature (°C)
+70
+100
Electrical Specifications - maximum limiting values Frequency Range 3.2 to <4.0MHz Frequency Tolerance @ 25°C ±2°C ±10ppm to ±100ppm Operating Temperature Range 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 4.0 to <5.5MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 5.5 to <6.0MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 6.0 to <9.0MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 9.0 to <13.0MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 13.0 to <20.0MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C 20.0 to <30.0MHz ±10ppm to ±100ppm 0 to 50°C -10 to 60°C -20 to 70°C -30 to 80°C -40 to 90°C -55 to105°C Frequency Stability Available Over Operating Temperature Minimum ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±30ppm ±100ppm Maximum ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±500ppm 30Ω Fundamental AT cut 40Ω Fundamental AT cut 60Ω Fundamental AT cut 80Ω Fundamental AT cut 100Ω Fundamental AT cut 130Ω Fundamental AT cut
LEADED QUARTZ CRYSTALS
ESR max. 300Ω
Vibration Mode Fundamental AT cut
±100ppm
Frequency Range
Frequency Operating Tolerance @ 25°C Temperature Range ±2°C Inclusive with Frequency Stability 0 to 50°C -10 to 60°C -20 to 70°C
Frequency Stability Available over Operating Temperature Minimum ±50ppm ±70ppm ±100ppm ±15ppm ±20ppm ±20ppm ±25ppm ±50ppm ±50ppm Maximum ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm ±100ppm
ESR max.
Vibration Mode
27.0 to 50.0MHz
40Ω
Fundamental BT cut
28.0 to 100.0MHz
±10ppm to 100ppm
0 to 50°C -10 to 60°C
100Ω
3rd Overtone AT cut
LEADED QUARTZ CRYSTALS
-20 to 70°C -30 to 80°C -40 to 90°C -55 to 105°C
