HC-49US Crystal Unit
Low Profile Type
F
EATURE
Hi Reliability
Tight Stability, Industrial High Temps
Resistance Welded Package
High precision and high frequency stability
MXO series
Applications: Home Electronics, Computer Machines, Communications,
Modems, Industrial Applications, Clocks, Microprocessors
P
ART
N
UMBERING
S
YSTEM
MXO
(1)
No
(1)
(2)
(3)
(4)
(5)
(6)
(7)
F
(2)
H
(3)
J
(4)
Item
I
(5)
11M0
(6)
R
(7)
Description
Crystal Unit
F: 20pF
H: ±30ppm
J: ±50ppm
I: -40~+85ºC
11M0: 11.00 MHz
R: Tape and Reel
HC-49US
E: 18pF, R: Series Resonance (see options)
F: ±20ppm, G: ±25ppm (see options)
G: ±25ppm, H: ±30ppm (see options)
C: -20~+70ºC, I: -40~+85ºC (see options)
3M579545 ~ 70M0 (M denotes decimal point)
Blank: Bulk (Standard), R: Tape and Reel
Series Reference
Code
MXO
F
H
J
I
11M0
R
Meritek Series
Load Capacitance
Frequency Tolerance
Stability vs Oper Temp.
Operating Temp.
Frequency
Packaging
D
IMENSIONS AND
R
ECOMMENDED
P
ATTERN
Item
A
B
C
D
(Unit: mm)
Size
11.5 max.
10.3 max.
3.5 max.
3.8 max.
Item
E
d
p
L
Size
5.0 max.
0.457 max.
4.88±0.20
12.7 min.
A
VAILABLE
O
PTIONS
Parameters
Load Capacitance
Frequency Tolerance
Stability vs Oper Temp.
Operating Temperature
Part Number Options
R: Series Resonance, 3: 3pF ~ 8: 8pF,
A: 10pF, B: 12pF, C: 15pF, D: 16pF, E: 18pF, F: 20pF, K: 22pF, G: 25pF, H: 30pF, L: 32pF
A: ±10ppm, C: ±15ppm, F: ±20ppm, G: ±25ppm, H: ±30ppm, J: ±50ppm
A: ±10ppm, C: ±15ppm, F: ±20ppm, G: ±25ppm, H: ±30ppm, J: ±50ppm, K: ±100ppm
B: 0~+70°C, A: -10~+60°C, C: -20~+70°C, K: -30~+85°C, I: -40~+85°C, R: -40~+105°C
Note: Custom options available. Contact Meritek for more information.
Meritek Electronics Corporation
|
www.meritekusa.com
Rev.7a 12/22/2017
HC-49US Crystal Unit
Low Profile Type
E
LECTRICAL
C
HARACTERISTICS
Parameters
Nominal Frequency Range
Operation Mode
Load Capacitance
Frequency Tolerance (at
25ºC)
Freq Stability over Oper Temp.
Operating Temperature
Storage Temperature
Drive Level
Aging
Shunt Capactiance
Insulation Resistance
Drive Level Dependency (DLD)
3.579545 ~ 4.999 Fund.
5.0 ~ 5.999 Fundamental
6.0 ~ 7.999 Fundamental
Equivalent Series
Resistance
8.0 ~ 8.999 Fundamental
9.0 ~ 9.999 Fundamental
10.0 ~ 15.999 Fundamental
16.0 ~ 31.999 Fundamental
32.0 ~ 70.000 3 OT/AT
*Specifications subject to change without notice.
rd
MXO series
Characteristic
3.579545 ~ 70.000 MHz
3.579545 ~ 31.999 MHz
32.000 ~ 70.000 MHz (standard frequencies)
18.0 pF (see options)
±30 ppm (see options)
±50 ppm (see options)
-20 ~ +70°C (see options)
-55 ~ +125°C
1 mW max. (100 µW typ.)
±5 ppm / year
7.0 pF max.
500 MΩ min. (@100Vdc ±15V)
1 µW ~ 500 µW (min. 7 points tested)
180 Ω max.
120 Ω max.
100 Ω max.
80 Ω max.
60 Ω max.
50 Ω max.
40 Ω max.
80 Ω max.
Fundamental
3 Overtone
rd
Meritek Electronics Corporation
|
www.meritekusa.com
Rev.7a 12/22/2017
