Ceramic SMD Crystal Unit
SMD 5.0 x 3.2mm Type
F
EATURE
Surface Mount Low Profile
Glass Sealed Ceramic
Excellent Heat Resistance
High precision and high frequency stability
MXB series
Applications: Wired Network, Mobile Communication, WiMAX, WLAN,
Test Equipment
P
ART
N
UMBERING
S
YSTEM
MXB
(1)
No
(1)
(2)
(3)
(4)
(5)
(6)
F
(2)
H
(3)
J
(4)
Item
I
(5)
18M432
(6)
Code
MXB
F
H
J
I
18M432
Description
Crystal Unit
F: 20pF
H: ±30ppm
J: ±50ppm
I: -40~+85ºC
18M432: 18.432MHz
Series Reference
Ceramic SMD Crystal 5.0x3.2mm 2 Pads
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)
8M0 ~ 54M0 (M denotes decimal point)
Meritek Series
Load Capacitance
Frequency Tolerance
Stability vs Oper Temp.
Operating Temp.
Frequency
D
IMENSIONS AND
R
ECOMMENDED
P
ATTERN
PIN
1
2
PIN Layout
Input / Output
Output / Input
(Unit:mm)
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~+70C, A: -10~+60C, C: -20~+70C, K: -30~+85C, I: -40~+85C, R: -40~+105C
Note: Custom options available. Contact Meritek for more information.
Meritek Electronics Corporation
|
www.meritekusa.com
Rev.7a 12/21/2017
Ceramic SMD Crystal Unit
SMD 5.0 x 3.2mm Type
E
LECTRICAL
C
HARACTERISTICS
Parameters
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
Equivalent Series
Resistance
8.0 ~ 30.000 Fundamental
30.01 ~ 54.000 Fundamental
MXB series
Characteristic
8.000 ~ 54.000 MHz
Fundamental
18 pF (see options)
±30 ppm (see options)
±50 ppm (see options)
-55 ~ +125°C (see options)
-40 ~ +85°C
100µW max. (10 typ.)
±5 ppm / year
5.0 pF max.
500 MΩ min. (@100Vdc ±15V)
60 Ω max.
45 Ω max.
R
ECOMMENDED
S
OLDERING
P
ROFILES
Reflow Condition
Pre
Heat
Temp. Min T
s(min)
Temp. Max T
s(max)
Time (min. to max.) (t
s
)
150°C
180°C
60~120 seconds
1°C/second max.
3°C/second max.
230°C
30~40 seconds
260°C
10 seconds max.
6°C/second
Average ramp up rate (T
L
) to peak
T
s(max)
to T
L
(Ramp-up rate)
Reflow
Temp. (T
L
)
Time (min. to max.) (t
L
)
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
*Specifications subject to change without notice.
Meritek Electronics Corporation
|
www.meritekusa.com
Rev.7a 12/21/2017
stm32/stm8
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