HC-49/U
Quartz Crystal Units AT-Cut, 2.4 - 300 MHz
11.0
4.9
4.5
10.0
3.6
HC-49/U:
X = 13.4
H C - 4 9 / 1 1 mm: X = 11.5
H C - 4 9 / 9 mm: X = 9.8
H C - 4 9 / 9 mm starting with 4.5 MHz
X
DIN 45110: M4
IEC 122-3: DP
NFC-93-601: n
0
5
MIL-H-10056: HC-49/U
Welded metal enclosure
(inert atmosphere)
with wire leads
13.7
∅
0.48
All dimensions in mm (max)
Temperature Stability in the Temperature Range
HC-49/U
Overtone Frequency Type
[MHz]
2.4...5.2
1.OT
3.OT
5.OT
7.OT
9.OT
5.2...10
10...30
20...100
50...160
110...210
150...300
XS 27xx
XS 27xx
XS 28xx
XS 28xx
XS 29xx
XS 30xx
XS 31xx
-55°C...+105°C
±
50ppm
01
01
01
11
01
01
01
±
25ppm
02
02
02
12
02
02
02
±
20ppm
03
03
03
13
03
03
03
-20°C...+70°C
±
10ppm
04
04
04
14
04
04
04
±
7ppm
06
06
06
16
06
06
06
±
5ppm
-----
07
07
17
07
07
07
Nom. Temp.
1
±
5°C )
±
2ppm
05
05
05
15
05
05
05
Calibration tolerance:
±
10 ppm
1
) Nom. Temp. = Nominal temperature for oven application to be given with the order.
Standard resonance for fundamental crystals: load resonance with C
L
= 30
±
0.5pF
Overtone crystals:
series mode
Shunt capacitance: C
0
= 7pF max
Motional Resistance R1
Overtone Frequency R1max
[MHz]
[Ω]
1. OT
2.4...3
250
1. OT
3...5.2
120
1. OT
5.2...6
80
1. OT
6...8
60
1. OT
8...10
40
1. OT
10...15
30
1. OT
15...35
25
3. OT
20...100
40
5. OT
50...160
60
7. OT
110...210
100
9. OT
150...300
200
Crystal units with different tolerances or additional data upon request.
Modifications:
HC-49/U-3, HC-49/11mm-3, HC-49/9mm-3:3rd wire (ground)
HC-49/U-S, HC-49/11mm-S:
3-point mounting for exposure to extreme accelerations (shock and vibr.)
HC-49/U-3-S, HC-49/11mm-3-S:
3-point mounting for exposure to extreme accelerations (shock and vibr.)
SMD-Versions with metal clip.
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www.vectron.com
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