217MQ15A - Mercury

Monolithic Crystal Filters – Surface Mount
Model “21.7MQ15A”, 2 pole, 21.7 MHz, 5x7x1.3 mm
•
•
•
MERCURY
Since 1973
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
21.7MQ15A
Package p
“Q” package, 5x7x1.3 mm Ceramic SMD
Number of Poles r
2 Poles
Center Frequency n:
21.7 MHz
Pass Bandwidthq
± 7.5 kHz min. at 3 dB
Stop Bandwidth
±25 KHz max. at 18 dB
Guaranteed Attenuation
70 dB min. at -910 KHz ± 10 KHz
Ripple
1.0 dB max.
Insertion Loss
1.5 dB max.
Spurious
15 dB min.
Terminating Impedance
1500 Ω // 2.5 pF
Operating Temperature
-20°C to +70°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 21.7MQ15A
M
Q
15
A
21.7
n
o
p
q
r
n: Center Frequency Code “21.7” for 21.7 MHz
o: MCF Series
p: Package code “Q” for 5x7x1.3 mm
q: 3dB bandwidth: “15” for ± 7.5 kHz (total 15 KHz).
r: “A” for 2 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 3
Date: May 1, 2008
Rev. 0
Monolithic Crystal Filter – Surface Mount
Model “21.7MQ15A”, 2 pole, 21.7 MHz, 5x7x1.3 mm
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.
Typical Frequency Response
MERCURY
Page 2 of 3
Date: May 1, 2008
Rev. 0
Monolithic Crystal Filter – Surface Mount
Model “21.7MQ15A”, 2 pole, 21.7 MHz, 5x7x1.3 mm
MERCURY
Since 1973
21.7MQ15A TEST CIRCUIT:
( 1500 )
R-Ro
( 1500 )
R-Ro
Filter
C
(2.5 pF)
C
(2.5 pF)
PACKAGE DIMENSIONS AND SUGGESTED PAD LAYOUT
6.0
1.3 ±0.1
4.6 typ.
bottom view
25.4
6
1
2.54 typ.
2.60
5
2
1.0
0.7
5.0±0.2
4
3
2.0
1.20
1.2 typ.
7.0±0.2
L.M.
Ro
Unit: mm
4.0
S.G.
Ro
Pad 3 and 6: MCF in / out Pad 1,2,4,5 and metal lid: Ground
RECOMMENDED SOLDER REFLOW PROFILE:
Topside temperature of board to be 260°C min. and 270°C max.
Temperature ( °C)
260
250
240
Peak Temperature: 260°C max. and 10 sec. max.
Time within 5°C of actual peak: 20 to 40 sec. max.
Liquidus Temperature
200
150
Flux Activation
Temperature
100
50
Pre-heat 1
30
MERCURY
60
90
t
Ram
up a x.
p
m
6°C p dow
Ra ec ma
/sec n at
20~40 sec.
/s
ma
3°C
x.
Soaking temp: 140°C~225°C
Soaking time: 60~120 sec.
Reflow
Zone
Soaking Zone
30~60 sec.
Pre-heat 2
Cooling
120 150 180
Page 3 of 3
210 240 270 300 330
Date: May 1, 2008
Time
(sec)
Rev. 0