21MQ15B

Monolithic Crystal Filters – Surface Mount
4 pole in single 5x7 mm package Model “21MQ15B”
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MERCURY
Since 1973
4 pole in single package. Save board space.
Thin and light weight; Excellent shock and vibration resistance
Suitable for automatic pick and place; Solder reflow capable
Specifically designed for mobile, wireless communications,
pagers, cellular and cordless phones.
SPECIFICATIONS
Model
21MQ15B
Package p
“Q” package, 5x7x1.35 mm Ceramic SMD
Number of Poles r
4 Poles in single package
Center Frequency n:
21.4 MHz
Pass Bandwidthq
±7.5 kHz min. at 3 dB
Stop Bandwidth
±25 KHz max. at 40 dB
Guaranteed Attenuation
70 dB min. at (fo-200 KHz) ~ (fo-1000 KHz)
65 dB min. at (fo+200 KHz) ~ (fo+1000 KHz)
Ripple in Passband
1.0 dB max.
Insertion Loss
2.0 dB max.
Spurious Response
40.0 dB min.
Terminating Impedance
1050 Ω // 1.5 pF (Cc= 14.0 pF)
Operating Temperature
-30°C to +85°C
Aging
± 2 ppm / year max.
Storage Temperature
-40°C to +85°C
Packaging
180 mm reel; 16 mm tape; 8 mm pitch; 1000 pcs per reel.
HOW TO ORDER:
Part Number: Please specify 21MQ15B
M
Q
15
B
21
n
o
p
q
r
n: Center Frequency Code “21” for 21.4 MHz
o: MCF Series
p: Package code “Q” for 5x7x1.35 mm
q: 3dB bandwidth: “15” for ± 7.5 kHz (total 15
KHz). r: “B” for 4 poles
MERCURY
www.mercury-crystal.com
Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: sales-tw@mercury-crystal.com
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: sales-us@mercury-crystal.com
MERCURY
Page 1 of 1
Date: Sept 17, 2008
Rev. 0
Monolithic Crystal Filters – Surface Mount
4 pole in single 5x7 mm package Model “21MQ15B”
MERCURY
Since 1973
ENVIRONMENTAL AND MECHANICAL SPECIFICATIONS
Green Requirement
RoHS compliant and Pb (lead) free.
Gross Leak
60 sec min at +125°C in D.I. water or fluorocarbon fluid
Fine Leak
< 2 x10-8 atm cc /sec by helium leak check
Shock
Half sine wave acceleration of 100G peak amplitude for 11 m. sec. duration, 3
cycles each plane.
Vibration
±5 ppm max. Frequency:10 to 55 Hz, amplitude: 1.5 mm or 10 Gs rms.
Duration: 6 hours.
Drop Test
Free drop onto hard wood board at 75 cm, 3 radon drops.
Solderability
MIL-STD-883, Method 2003
Humidity
After 48 hours at 85°C, 85% relative humidity non-condensing
Thermal Shock
Temperature cycling: Exposed at -40°C for 30 minutes then to +85°C for 30
minutes for duration of 5 days
Marking Permanency
MIL-STD-202, Method 215. Laser engraved.
Pad Plating
Gold over nickel
PACKAGE DIMENSIONS AND SUGGESTED PAD LAYOUT
M E C
Unit: mm
4 5 6
3 2 1
bottomview
MERCURY
Page 2of 2
Date: Sept 17, 2008
Rev. 0