CERAMIC SURFACE-MOUNT • 21.4MHz and 45MHz FUNDAMENTAL

MONOLITHIC CRYSTAL FILTERS

ASCF21U and ASCF45U

APPLICATIONS:

• Mobile communication systems.

• Pagers.

• Cellular and cordless phones.

• Radios.

FEATURES:

• Surface-mount ceramic package.

• Reflow capable.

• Excellent attenuation bandwidth.

• Low height.(1.5mm max.)

PIN

1

2

3

4

5

6

FUNCTION

IN

GND

GND

OUT

GND

GND

ORDERING OPTIONS

ASCFXXU XX

-

Packaging

-T for Tape and reel

7.2 x 5.2 x 1.5 mm

Operating Temperature: -20°C to + 70°C.

Environmental and mechanical specifications, see appendix C. Group 2.

Applications notes, see appendix A.

Tape and reel, see appendix H.

Marking, see appendix G.

Recommended handling, see appendix F.

We Manufacture to your Custom Specifications. Please Call for Details.

S

S

T

T

A

A

N

N

D

D

A

A

R

R

D

D

S

S

P

P

E

E

C

C

I

I

F

F

I

I

C

C

A

A

T

T

I

I

O

O

N

N

S

S

ABRACON

RIPPLE LOSS TERMINATING IMPEDANCE

PART NO.

POLE dB kHz

dB

kHz

dB

dB

STOPBAND

PASSBAND

ASCF21U8

2

3

±3.75

20

±18.0

1.0

2.0

(850 // 5.0)

ASCF21U15

2

3

±7.50

18

±25.0

1.0

2.0

(1500 // 1.0)

ASCF21U20

2

3

±10.0

10

±30.0

1.0

2.0

(1800 // 1.0)

ASCF21U30

2

3

±15.0

15

±45.0

1.0

2.0

(2000 // 1.5)

Dimensions: Inches (mm)

ABRACON

IPPLE LOSS TERMINATING IMPEDANCE

PART NO.

POLE dB kHz

dB

kHz

dB

dB

STANDARD SPECIFICATIO

R

NS

ASCF45U8

2

3 ±3.75

20

±25.0

1.0

2.5

(650 // 3.5)

ASCF45U12

2

3 ±6.00

15

±20.0

1.0

2.5

(650 // 5.0)

ASCF45U15

2

3 ±7.50

15

±25.0

1.0

2.5

(650 // 3.5)

ASCF45U30

2

3 ±15.0

15

±60.0

1.0

2.5

(1200 // -3.0)

STOPBAND

PASSBAND

21 or 45

See suffix in P/N

29 Journey • Aliso Viejo, CA 92656 • USA

(949) 448-7070

•

ABRACON IS

ISO 9001 / QS 9000

CERTIFIED

NOTE: Left blank if standard

• All specifications and markings subject to change without notice

ABRACON

®