Description
CERAMIC SURFACE-MOUNT • 21.4MHz and 45MHz FUNDAMENTAL ASCF21U and ASCF45U 7.2 x 5.2 x 1.5 mm MONOLITHIC CRYSTAL FILTERS FEATURES: • Surface-mount ceramic package. • Excellent attenuation bandwidth. • Reflow capable. • Low height.(1.5mm max.) APPLICATIONS: • Mobile communication systems. • Cellular and cordless phones. • Pagers. • Radios. www.DataSheet4U.com ASCF21U8 ASCF21U15 ASCF21U20 ASCF21U30 STOPBAND PASSBAND ABRACON RIPPLE LOSS TERMINATING IMPEDANCE POLE dB PART ANDARD SPECIFICATIONS dB kHz dB kHz dB (W // pF) ST NO. STANDARD SPECIFICATIONS 2 2 2 2 3 3 3 3 ±3.75 ±7.50 ±10.0 ±15.0 20 18 10 15 ±18.0 ±25.0 ±30.0 ±45.0 1.0 1.0 1.0 1.0 2.0 2.0 2.0 2.0 (850 // 5.0) (1500 // 1.0) (1800 // 1.0) (2000 // 1.5) STANDARD SPECIFICATIONS ABRACON PART NO. PASSBAND POLE dB kHz STOPBAND dB kHz RIPPLE LOSS TERMINATING IMPEDANCE dB dB ( W // pF ) ASCF45U8 ASCF45U12 ASCF45U15 ASCF45U30 2 2 2 2 3 3 3 3 ±3.75 ±6.00 ±7.50 ±15.0 20 15 15 15 ±25.0 ±20.0 ±25.0 ±60.0 1.0 1.0 1.0 1.0 2.5 2.5 2.5 2.5 (650 // 3.5) (650 // 5.0) (650 // 3.5) (1200 // -3.0) 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. Dimensions: Inches (mm) We Manufacture to your Custom Specifications. Please Call for Details. ORDERING OPTIONS ASCFXXU XX Packaging -T for Tape and reel See suffix in P/N 21 or 45 PIN 1 2 3 4 5 6 FUNCTION IN GND GND OUT GND GND ABRACON IS ISO 9001 / QS 9000 CERTIFIED NOTE: Left blank if standard • All specifications and markings subject to change without notice ABRACON 29 Journey • Aliso Viejo, CA 92656 • USA (949) 448-7070 • FAX: (949) 448-8484 E-MAIL: abinfo@ abracon.com • INTERNET ADDRESS: www.abracon.com ® C O R P O R AT I O N 77

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ASCF21U

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