EURO
QUARTZ
Compact and low mass.
Excellent shock and vibration resistance
Suitable for automatic pick and place
Solder reflow capable
MONOLITHIC CRYSTAL FILTERS
SMD 'Q' Series, 21.40MHz 21.70MHz and 45.000MHz
OUTLINE & DIMENSIONS
ENVIRONMENTAL & MECHANICAL SPECIFICATIONS
RoHS Status:
Gross Leak:
Shock:
RoHS compliant and pB free
60s minimum at +125°C in D.I.
water or flurocarbon fluid.
Half sine wave, acceleration of 100g
peak amplitude for 11ms duration,
3 cycles in each plane.
±5ppm maximum, frequency 10Hz
to 55Hz, amplitude 1.5mm or
10gs r.m.s. Duration 6 hours
Three drops onto hard wood board
from 75cm. 3 random drops.
After 48 hours at 85°C, 85% relative
humidity, non-condensing
Temperature cycling, exposed to
-40° for 30 minutes then at +85°C
for 30 minutes, duration of 5 days
Vibration:
Drop Test:
Humidity:
Thermal Shock:
SPECIFICATIONS
Frequency
(MHz)
21.400
21.400
21.700
45.000
45.000
Model
21MQ7.5A
21MQ15A
21.7MQ15A
45MQ15A
45MQ30A
No. of
Poles
2
2
2
2
2
Pass
Bandwidth
dB
kHz
3
3
3
3
3
±3.75
±7.5
±7.5
±7.5
±15
Stop
Bandwidth
dB
kHz
20
18
18
15
15
±18
±25
±28
±25
±60
Insertion Guaranteed Terminating
Loss
Attenuation Impedance
Ohms//pF
dB max. dB max. dB
kHz
Ripple
1.0
0.5
1.0
1.0
1.0
2.0
1.5
2.0
2.0
2.0
70
70
70
70
70
-910
-910
-910
-910
-910
850//6.0
1.5k//2.5
1.5k//2.5
560//6.0
1.2k//1.8
PART NUMBER FORMAT
Example: 21MQ7.5A
Frequency Code
21M = 21.4MHz
21.7M = 21.700MHz
45M = 45.000MHz
Q: Package style 7.0 x 5.0 x 1.3mm SMD
Pass Bandwidth code (at 3dB min.)
7.5 = ±3.75kHz
15 = ±7.5kHz
30 = ±15kHz
Poles code
A = 2 poles (1 piece)
B = 4 poles (2 pieces)
C = 6 poles (3 pieces)
D = 8 poles (4 pieces)
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
Registered in England No: 1773012