ASCF21UB Datasheet, PDF (1/1 Pages) Abracon Corporation – SURFACE MOUNT CRYSTAL FILTER

SURFACE MOUNT CRYSTAL FILTER
ASCF21UB *RoHS COMPLIANT
FEATURES:
• Surface-mount ceramic package.
• Reflow capable.
• Excellent attenuation bandwidth.
• Low height (1.0mm max.)
APPLICATIONS:
• Mobile communication systems.
• Pagers.
• Cellular and cordless phones.
• Radios.
6.0 x 3.5 x 1.0mm
|||||||||||||||
STANDARD SPECIFICATIONS:
PARAMETERS
Frequency Range
Operating Temperature
21.400MHz
- 20° C to + 70° C
Series No.
21UB7A
21UB7B
21UB15A
21UB15B
21UB20A
21UB20B
21UB30A
21UB30B
Pole
2
4
2
4
2
4
2
4
Pass Band
dB
KHz
3
± 3.75
3
± 3.75
3
± 7.5
3
± 7.5
3
± 10.0
3
± 10.0
3
± 15.0
3
± 15.0
Attenuation Band
dB
KHz
18
± 18.0
35
± 14.0
15
± 25.0
35
± 25.0
15
± 34.0
35
± 34.0
15
± 45.0
35
± 50.0
Ripple
dB
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Series No.
21UB7A
21UB7B
21UB15A
21UB15B
21UB20A
21UB20B
21UB30A
21UB30B
Attenuation Guaranteed
dB
KHz
50
-910±10
80
-910±10
50
-910±10
80
-910±10
50
-910±10
80
-910±10
45
-910±10
80
-910±10
Terminal Impedance
(Ω//pF)
850//6.0
850//3.5
1500//2.0
1500//0.5
1800//0.5
1800//-1.0
3000//0
3000//-1.5
Case Quantity
1
2
1
2
1
2
1
2
Loss
dB
1.5
2.5
1.5
2.5
2.0
2.5
1.5
2.5
MARKING:
- 21.4
- UBXX ZY
XX : suffix of P/N
ZY : Date Code
Z = Month (A to L)
Y = Year (6 for 2006)
OUTLINE DRAWING:
ORDERING INFORMATION:
ASCF21UBXX - Packaging
-T Tape and Reel (1,000pcs/reel)
ABRACON IS
ISO 9001 / QS 9000
CERTIFIED
Dimensions: inch (mm)
30332 Esperanza, Rancho Santa Margarita, California 92688
tel [phone] | fax [phone] | www.abracon.com