DIELECTRIC FILTER SPECIFICATION China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: DF2025S50 www.sipatsaw.com 1. MODEL NUMBER C&Q MODEL NUMBER. CUSTOMER PART NO. DF2025S50 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 POLE 2 POLE 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) 2025.0MHz 4-2 BAND WIDTH ±25.0MHz 4-3 INSERTION LOSS IN BW 2.0dB max. 4-4 RIPPLE 0.5dB max. 4-5 V.S.W.R IN BW 1.5 max. 4-6 ATTENUATION 30dB min. at fo+/-330MHz 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 DF2025S50 Rev. Date 2005-9-21 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. Part Number: DF2025S50 www.sipatsaw.com 5. APPEARANCES AND DIMENSIONS I/O 2025 I/O Tol:±0.2 Unit:mm 6. RECOMMENDED REFLOW PAD IN/OUT PORT SOLDERING POINT GROUND SOLDERING POINT 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 DF2025S50 Rev. Date 2005-9-21 Rev. 1.0 Fax: +86-23-62805284 Page 2/3 www.sipatsaw.com / [email protected] China Electronics Technology Group Corporation No.26 Research Institute DIELECTRIC FILTER SPECIFICATION SIPAT Co., Ltd. Part Number: DF2025S50 www.sipatsaw.com 8.CHARACTERISTICS SIPAT Co., Ltd. ( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060 Phone: +86-23-62920684 Part Number DF2025S50 Rev. Date 2005-9-21 Rev. 1.0 Fax: +86-23-62805284 Page 3/3 www.sipatsaw.com / [email protected]