DIELECTRIC FILTER SPECIFICATION China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. www.sipatsaw.com Part Number: CMF33C1857S45A 1. PART NUMBER PART NO. CUSTOMER PART NO. CMF33C1857S45A 2. TEST CONDITION 2-1 TYPICAL CONDITION : -TEMPERATURE : 20℃ -HUMIDITY : 65%RH 2-2 STANDARD CONDITION : -TEMPERATURE :-40℃ to +85℃ -HUMIDITY : 45%RH to 85%RH 3. COMPOSITION AND MATERIAL NO. NAME COMPOSITION AND MATERIALS 3-1 RESONATOR DIELECTRIC MATERIALS 3-2 NUMBER OF HOLE 3 HOLE 3-3 IN/OUTPUT TERMINALS Ag or Sn PLATED 3-4 GROUND BASE Ag or Sn PLATED 4. ELECTRICAL SPECIFICATIONS NO. ITEM SPECIFICATIONS 4-1 CENTER FREQUENCY(fo) 1857.5MHz 4-2 BAND WIDTH(-1dB) fo±22.5MHz 4-3 INSERTION LOSS IN BW 2.2dB max. 4-4 RIPPLE IN BW 0.5dB max. 4-5 V.S.W.R IN BW 2.0 :1 max. 4-6 ATTENUATION 32dB min. at fo±160.0MHz 18dB min. at fo±80.0MHz 4-7 INPUT POWER 1W 4-8 NOMINAL CHARACTERISIC IMPEDANCE 50Ω SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number CMF33C1857S45A Rev. Date 2005-6-20 Rev. 1.0 Fax: +86-23-62805284 Page 1/3 www.sipatsaw.com / [email protected] DIELECTRIC FILTER SPECIFICATION China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. www.sipatsaw.com Part Number: CMF33C1857S45A 5. APPEARANCES AND DIMENSIONS MF1857A GROUND TOLERANCE:±0.3 (Unit: mm) 6. RECOMMENDED REFLOW PAD IN-OUT PORT SOLDERING POINT GROUND SOLDERING POINT SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number CMF33C1857S45A Rev. Date 2005-6-20 Rev. 1.0 Fax: +86-23-62805284 Page 2/3 www.sipatsaw.com / [email protected] DIELECTRIC FILTER SPECIFICATION China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. www.sipatsaw.com Part Number: CMF33C1857S45A 7. REFLOW SOLDERING STANDARD CONDITIONS SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number CMF33C1857S45A Rev. Date 2005-6-20 Rev. 1.0 Fax: +86-23-62805284 Page 3/3 www.sipatsaw.com / [email protected]