SAW FILTERS

Surface Acoustic Wave RF Low Loss Saw Filters

TSF - SAW

Tokenchinas broad SAW filter product offering serves growing and popular markets. The miniaturized packages meet needs for smaller, lighter, and lower-profile products. The SAW filter's superior technical performance provides solutions for new design challenges.


SAW filters are small in size, have excellent selectivity, and have high stop-band rejection. The target applications include: 1.57GHz for GPS applications, 315 and 433.92MHz for remote keyless entry and security applications; as well as RFID, automated meter reading, and wireless data radios.


The FM Series is lead-free and RoHS compliant. Please contact us for details with your specific needs.


SAW Filter General Information

Surface Accoustic Wave (SAW) fundamentals provide for a piezoelectric material that converts an incoming electromagnetic signal into an acoustic signal, and vice versa. In its most basic form, a SAW filter consists of a polished piezoelectric substrate with a deposit of two transducers with interdigital arrays of thin electrodes.


The electrodes making up the arrays alternate polarities so that when an RF signal voltage is applied across them, a surface wave is then generated. In designing a SAW Filter, the overall frequency response characteristics are determined by deriving two impulse responses for the two transducers whose transforms are added together in dB. The surface of a piezoelectric substrate is then etched with the two impulse responses.


FeaturesSaw Filters - TSF Series

  • Excellent Rejection.
  • Small External Impedance Matching.
  • RF Low Loss Filter for Remote Control Receivers.

Applications

  • Wireless Keyboards, Wireless Mouse
  • Wireless Joysticks, Wireless Lamp Switching
  • Wireless Security Systems, Wireless Barcode Reader
  • Security, Communications, Tive pressure Monnitoring System
  • Automotive Keyless Entry (RKE), In-house Arrest Systems, Data link
  • Global Positioning System (GPS), Radio Frequency Identification (RFID)

Saw Filters for Automotive Electronics & Remote Control - Front End Filters Typical Specification

Part Number Center Freq.
(MHz)
IL(dB) 3dB BW(MHz) Package
SMD Type DIP Type
TSF295D00-D1 295 3.0 0.6   TO-39
TSF302D00A-S4 302 2.5 0.75 QCC8C  
TSF302D00B-S7 302 2.5 0.75 DCC6  
TSF303D825A-D1 303.825 3.0 0.6   TO-39
TSF303D825B-S4 303.825 3.0 0.6 QCC8C  
TSF303D875A-D1 303.875 3.0 0.6   TO-39
TSF303D875B-S4 303.875 3.0 0.6 QCC8C  
TSF310D00-S4 310 3.0 0.8 QCC8C  
TSF315D00A-D1 315 3.0 0.6   TO-39
TSF315D00B-D2 315 3.0 0.6   F-11
TSF315D00C-S4 315 3.0 0.6 QCC8C  
TSF315D00D-S4 315 2.5 1.3 QCC8C  
TSF315D00E-S6 315 2.5 1.3 QCC8B  
TSF315D50-D1 315.5 3.0 0.6   TO-39
TSF318D00-D1 318 3.0 0.6   TO-39
TSF319D50-D1 319.5 2.5 0.7   TO-39
TSF345D00A-S6 345 2.5 4.5 QCC8B  
TSF345D00B-S4 345 3.0 0.9 QCC8C  
TSF372D50-D1 372.5 3.0 0.6   TO-39
TSF390D00-S4 390 3.0 1.0 QCC8C  
TSF391D25-D1 391.25 2.5 0.6   TO-39
TSF395D00-S4 395 3.0 1.0 QCC8C  
TSF401D65-S4 401.65 3.0 0.6 QCC8C  
TSF401D90-D1 401.9 3.0 0.6   TO-39
TSF418D00A-D1 418 3.0 0.6   TO-39
TSF418D00B-S4 418 3.0 0.6 QCC8C  
TSF419D20-S4 419.2 3.0 1.2 QCC8C  
TSF430D50A-D1 430.5 3.0 0.6   TO-39
TSF430D50B-D2 430.5 3.0 0.6   F-11
TSF431D50A-D2 431.5 2.5 0.58   F-11
TSF431D50B-S4 431.5 2.5 0.58 QCC8C  
TSF433D42A-S4 433.42 3.5 0.6 QCC8C  
TSF433D42B-S7 433.42 3.0 0.9 DCC6  
TSF433D92A-D1 433.92 3.0 0.6   TO-39
TSF433D92B-D1 433.92 2.0 0.73   TO-39
TSF433D92C-D2 433.92 3.0 0.6   F-11
TSF433D92D-S4 433.92 3.0 0.6 QCC8C  
TSF433D92E-S4 433.92 2.0 0.73 QCC8C  
TSF433D92F-S4 433.92 2.5 0.6 QCC8C  
TSF433D92G-S4 433.92 2.5 0.95 QCC8C  
TSF433D92H-S4 433.92 2.2 0.7 QCC8C  
TSF433D92I-S6 433.92 2.8 6.0 QCC8B  
TSF433D92J-S6 433.92 2.3 0.56 QCC8B  
TSF433D92K-S6 433.92 2.3 0.56 QCC8B  
TSF433D92L-S9 433.92 2.8 1.0 DCC6C  
TSF433D92M-S7 433.92 2.3 0.56 DCC6  
TSF434D42A-D1 434.42 3.0 0.7   TO-39
TSF434D42B-S4 434.42 3.0 0.6 QCC8C  
TSF439D25-D1 439.25 3.0 0.6   TO-39
TSF451D25-D1 451.25 2.5 0.48   TO-39
TSF463D912-S4 463.912 2.5 1.2 QCC8C  
TSF499D25-D1 499.25 3.0 0.54   TO-39
TSF801D125A-S7 801.125 5.8 0.56 DCC6  
TSF801D125B-S6 801.125 5.0 0.58 QCC8B  
TSF859D15-D2 859.15 4.0 1.0   F-11
TSF868D00-S4 868 3.5 1.2 QCC8C  
TSF868D30-S4 868.3 4.0 1.2 QCC8C  
TSF868D35A-D2 868.35 4.0 1.2   F-11
TSF868D35B-S4 868.35 4.0 1.2 QCC8C  
TSF868D35C-S6 868.35 3.5 1.8 QCC8B  
TSF868D69-S4 868.69 3.8 1.9 QCC8C  
TSF868D95-S4 868.95 3.5 1.2 QCC8C  
TSF869D69-S4 869.69 3.8 1.8 QCC8C  
TSF902D30-S4 902.3 3.5 1.2 QCC8C  
TSF908D00-S6 908 3.0 2.0 QCC8B  
TSF914D50-D2 914.5 3.8 1.2   F-11
TSF915D00A-D1 915 3.5 1.2   TO-39
TSF915D00B-S4 915 4.0 1.2 QCC8C  
TSF915D00C-S7 915 3.8 1.8 DCC6  
TSF916D50A-D1 916.5 4.0 1.2   TO-39
TSF916D50B-D2 916.5 3.5 1.2   F-11
TSF916D50C-S4 916.5 4.0 1.2 QCC8C  
TSF916D50E-S4 916.5 4.0 1.2 QCC8C  
TSF916D50F-S6 916.5 4.8 1.35 QCC8B  
TSF921D60-S6 921.6 2.6 1.9 QCC8B  
TSF927D20-S7 927.2 3.0 1.45 DCC6  
TSF931D00-S4 931 3.5 1.8 QCC8C  

Saw Filters for Digital Satellite Broadcasting (DSB Receiver) - Typical Specification

Part Number Center Freq.
(MHz)
IL(dB) 3dB BW(MHz) Application Package
SMD Type DIP Type
TSF480D00A-D5 480 21 18 One-channel,Satellite Filters   TO39-2
TSF480D00B-S4 480 21 18 One-channel,Satellite Filters QCC8C  
TSF480D00C-D5 480 22.5 27 One-channel,Satellite Filters   TO39-2
TSF480D00D-S4 480 22.5 27 One-channel,Satellite Filters QCC8C  
TSF480D00E-D5 480 20 27 One-channel,Satellite Filters   TO39-2
TSF480D00F-D5 480 21 36 One-channel,Satellite Filters   TO39-2
TSF480D00G-S4 480 21 36 One-channel,Satellite Filters QCC8C  
TSF480D00H-D1 480 15 16 One-channel,Satellite Filters   TO-39
TSF480D00I-S4 480 12.5 15.3 One-channel,Satellite Filters QCC8C  
TSF480D00J-D5 480 22 38.6 One-channel,Satellite Filters   TO39-2
TSF479D50A-D5 479.5 21.5 8 One-channel,Satellite Filters   TO39-2
TSF479D50B-S4 479.5 21.5 8 One-channel,Satellite Filters QCC8C  
TSF479D50C-D5 479.5 18 6.5 One-channel,Satellite Filters   TO39-2
TSF479D50D-D2 479.5 22 16 (5.5 dB) One-channel,Satellite Filters   F-11
TSF479D50E-S4 479.5 22 16 (5.5 dB) One-channel,Satellite Filters QCC8C  
TSF402D78B-S4 402.78 20.5 / 20.0 15.5 / 28.0 Two-channel,Satellite Filters QCC8C  

RF Filters for Cellular Phone - Typical Specification

Part Number Center Freq.
(MHz)
System BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF452D50-S7 452.5 CDMA450 TX 5.0 2.1 DCC6  
TSF462D50-S7 462.5 CDMA450 RX 4.6 2.5 DCC6  
TSF455D00-S7 455.0 CDMA450 TX 5.0 2.1 DCC6  
TSF465D00-S7 465.0 CDMA450 RX 4.6 2.5 DCC6  
TSF481D25-S7 481.25 CDMA450 TX 4.5 1.8 DCC6  
TSF491D25-S7 491.25 CDMA450 RX 4.5 2.4 DCC6  
TSF836D50-S9 836.5 AMPS / CDMA TX 25 2.7 DCC6C  
TSF881D50-S9 881.5 AMPS / CDMA RX 25 2.7 DCC6C  
TSF897D50A-S7 897.5 EGSM TX 26 3.0 DCC6  
TSF897D50B-S7 897.5 EGSM TX 30 2.7 DCC6  
TSF942D50-S7 942.5 EGSM RX 30 2.7 DCC6  
TSF900D00A-S7 900 EGSM TX 30 2.7 DCC6  
TSF900D00B-S9 900 EGSM TX 30 2.7 DCC6C  
TSF945D00A-S7 945 EGSM RX 30 2.7 DCC6  
TSF945D00B-S9 945 EGSM RX 30 2.7 DCC6C  
TSF902D50A-S9 902.5 GSM TX 30 2.7 DCC6C  
TSF902D50B-S7 902.5 GSM TX 25 3.0 DCC6  
TSF947D50A-S9 947.5 GSM RX 30 2.7 DCC6C  
TSF947D50B-S7 947.5 GSM RX 25 3.0 DCC6  
TSF1747D50-S9 1747.5 PCN / DCS TX 75 3.5 DCC6C  
TSF1842D50-S9 1842.5 PCN / DCS RX 75 3.5 DCC6C  
TSF1855D00-S9 1855.0 K-PCS RX 30 3.0 DCC6C  

RF Filters for Cordless Phone (ISM Band) - Typical Specification

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF903D65-S7 903.65 +2 3.8 DCC6  
TSF915D00A-S7 915 26 3.5 DCC6  
TSF915D00B-S9 915 26 3.5 DCC6C  
TSF915D00C-S9 915 26 3.5 DCC6C  
TSF915D00D-S7 915 26 3.5 DCC6  
TSF915D00E-S9 915 7 3.2 DCC6C  
TSF915D00F-S7 915 7 3.0 DCC6  
TSF926D25-S7 926.25 +2 3.5 DCC6  
  • 1dB Bandwidth : 6.75 MHz (CH1~CH5) ; 6.50 MHz
  • Insertion Loss : 23.0 dB typical ; 6.50 dB typical (NDF25C)
  • Passband Ripple :+ 0.6 dB ;+ 1.0 dB (NDF25C)

SAW Filters Duplexers for Cordless Phone - Typical Specification

Part Number Lower Freq.
(MHz)
Upper Freq.
(MHz)
System IL(dB) Package
SMD Type DIP Type
TSF908D50A-S4 886 931 CT1+ 3.5 / 3.5 QCC8C  
TSF908D50B-S4 886 931 CT1+ 3.5 / 3.5 QCC8C  
TSF908D50C-S6 886 931 CT1+ 3.5 / 3.5 QCC8B  
TSF908D50D-S6 886 931 CT1+ 3.5 / 3.5 QCC8B  
TSF915D00A-S6 903 927 ISM band 3.5 / 3.5 QCC8B  
TSF915D00B-S6 903 927 ISM band 3.5 / 3.5 QCC8B  
TSF914D95A-S6 903.45 926.45 ISM band 3.5 / 3.5 QCC8B  
TSF914D95B-S6 903.45 926.45 ISM band 3.5 / 3.5 QCC8B  
TSF914D95C-D1 903.75 926.25 ISM band 3.5 / 3.5   TO-39
TSF914D95D-D1 903.75 926.25 ISM band 3.5 / 3.5   TO-39
TSF914D95E-S4 903.75 926.25 ISM band 3.5 / 3.5 QCC8C  
TSF914D95F-S4 903.75 926.25 ISM band 3.5 / 3.5 QCC8C  
TSF914D95G-S6 903.75 926.25 ISM band 3.5 / 3.5 QCC8B  
TSF914D95H-S6 903.75 926.25 ISM band 3.5 / 3.5 QCC8B  
TSF937D00A-D1 914.5 959.5 CT1 3.5 / 3.5   TO-39
TSF937D00B-D1 914.5 959.5 CT1 3.5 / 3.5   TO-39
TSF937D00C-S4 914.5 959.5 CT1 3.5 / 3.5 QCC8C  
TSF937D00D-S4 914.5 959.5 CT1 3.5 / 3.5 QCC8C  
TSF937D00E-S6 914.5 959.5 CT1 3.5 / 3.5 QCC8B  
TSF937D00F-S6 914.5 959.5 CT1 3.5 / 3.5 QCC8B  

RF Filters for GPS - Typical Specification

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF1542D50-S9 1542.50 40 3.5 DCC6C  
TSF1575D42A-S9 1575.42 2.4 1.6 DCC6C  
TSF1575D42B-S6 1575.42 2.4 1.6 QCC8B  

IF Filters for Wireless LAN - Typical Specification

Part Number Center Freq.
(MHz)
3dB BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF280D00-S4 280 20 11 QCC8C  
TSF374D00A-D1 374 22 9   TO-39
TSF374D00B-D1 374 22 8.5   TO-39
TSF374D00C-S4 374 22 9 QCC8C  
TSF374D00D-S4 374 22 8.5 QCC8C  
TSF374D00E-S4 374 19 9 QCC8C  
TSF374D00F-S4 374 20.5 9 QCC8C  
TSF374D00G-S6 374 23 9 QCC8B  
TSF374D00H-S6 374 21 9 QCC8B  

SAW Filters for Pager Application - Typical Specification

Part Number Center Freq.
(MHz)
BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF139D00-D2 139 +4.0 6.5 max.   F-11
TSF147D00A-D2 147 +4.0 6.5 max.   F-11
TSF147D00B-S4 147 +4.0 6.5 max. QCC8C  
TSF155D00A-D2 155 +4.0 6.5 max.   F-11
TSF155D00B-S4 155 +4.0 6.5 max. QCC8C  
TSF163D00A-D2 163 +4.0 6.5 max.   F-11
TSF163D00B-S4 163 +4.0 6.5 max. QCC8C  
TSF171D00A-D2 171 +4.0 6.5 max.   F-11
TSF171D00B-S4 171 +4.0 6.5 max. QCC8C  
TSF281D00A-D2 281 +3.1 4.5 max.   F-11
TSF281D00B-S4 281 +4.0 4.5 max. QCC8C  
TSF930D50A-D2 930.5 +2.0 4.5 max.   F-11
TSF930D50B-S4 930.5 +2.0 4.5 max. QCC8C  
TSF930D50C-S7 930.5 +2.0 4.5 max. DCC6  

SAW Filters for Communication Equipment - Typical Specification

Part Number Center Freq.
(MHz)
System BW(MHz) IL(dB) Package
SMD Type DIP Type
TSF35D42-S2 35.42 GPS 1.9 (1dB) 17.5 SMP-53  
TSF96D00B-S3 96 3G BaseStation 5 (1dB) 13.5 SMP-53-S  
TSF96D00C-S1 96 3G BaseStation +10 8.5 SMP-03  
TSF110D00A-S4 110 GPS 2.12 (3dB) 3.5 QCC8C  
TSF110D00B-S1 110 Wireless LAN / Bluetooth 4.0 (3dB) 9.0 SMP-03  
TSF110D00C-S1 110 SCDMA 0.66 (1dB) 12 SMP-03  
TSF110D592A-S4 110.592 DECT +0.576 3.5 QCC8C  
TSF110D592B-S1 110.592 DECT +0.576 3.5 SMP-03  
TSF130D38A-S6 130.38 AMPS / ADC +0.63 min. 5.5 max. QCC8B  
TSF130D38B-S7 130.38 AMPS / ADC +0.63 min. 5.5 max. DCC6  
TSF199D00-S3 199 GSM BaseStation +0.1 7.0 max. SMP-53-S  
TSF204D00-S1 204 SCDMA 0.7 (1dB) 10 SMP-03  
TSF240D00-S4 240 Broadband +3.85 11 QCC8C  
TSF243D95A-S7 243.95 PHS +0.11 2.0 DCC6  
TSF243D95B-S7 243.95 PHS +0.11 2.2 DCC6  
TSF243D95C-S9 243.95 PHS +0.11 2.0 DCC6C  
TSFD243D95D-S8 243.95 PHS +0.11 2.0 QCC8D  
TSF243D95E-S8 243.95 PHS +0.11 2.2 QCC8D  
TSF265D55-S8 265.55 PHS +0.11 2.3 QCC8D  
TSF426D00-S2 426 Broadband Access / VOFDM 6.5 (3dB) 22 SMP-53  

How to Order - SAW Filter TSF

TSF 302D00 A D1
Part Type
Center Freq.(MHz)
302D00 302 MHz
310D00 310 MHz
391D25 391.25 MHz
Series No.
None
A
B
C
D
Package
S1
S2
D1
D2

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TSF Series - Surface Acoustic Wave RF Low Loss Saw Filters