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    Welcome to SANMU
    We have very excellent engineers and a very strong R&D team. To guarantee high quality of our products, We are absorbting international and local advanced experiences of technology and management. At the same time by improving ourselves by and by.
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    The company with the annual manufacturing capacity of more than 60 million piece.
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    Ceramic Filters
    Cermic Resonalor
    SMD Ceramic Resonator
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    Yangguang Solar Energy

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    The products of SANMU are mainly used in the fields of communication, broadcast, video, industry automatic, home appliances etc.
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    Following the quality principle of "Pursue Excellence and Forever Satisfaction of Clients".
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    The company has become one of the strongest, largest and most competitive companies in China.
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    • Sanmu company is specialized manufacturer frequency electronic components in China
    Products
    Ceramic Filters
    Ceramic Filters

    LT Series of Ceramic Filter for Radio-Cassette Recorder(450-470kHz)


    TECHNICAL CHARACTERISTICS

    Part Number Insertion Loss (dB) Pass Band Width (KHz) Stop Band Att fo ±100KHz (dB) Selectivity 9 ±KHzoff (dB) Ripple (dB) input/ output Impedance (kΩ)
    LT465A1 ≤3 ≥8 ≥12 ≥11 ≤1 2

    Center Frequency (fo) is available in arange fo 450-470KHz
    The nominal frequency tolerance is ± 2KHz

    TEST CIRCUIT

    CHARACTERISTICS

    RECOMMENDED IFT(TMM SQUARE)

    TECHNICAL CHARACTERISTICS

    Part Number 3dB Band Width (KHz) Selectivity Insertion Loss (dB) Composition
    -9kHzoff +9kHzoff
    HLB455A 10±3 ≥5 ≥3 ≤ 1 element
    HLB455A 10±3 ≥5 ≥3 ≤ 1 element with IFT

    Center Frequency (fo) is available in arange fo 450-470KHz
    The nominal frequency tolerance is ± 2KHz

    TEST CIRCUIT

    CHARACTERISTICS

    PFH455A/455B Subminiature Type Ceramic Filters

    Products Types
    Centre Frequency(KHz)
    		Insertion Loss(dB)
    Band Width 3dB(KHz)
    		Selectivity f?0￡(+ -)9KHz (dB) Impedance Matching K ohm
    PHF455A
    455(+ -)2
    <=6(3)
    10(+ -)1.5
    >5(12)
    3
    PHF455B
    455(+ -)2
    <=6(2)
    5.5(+ -)1.5
    >17(23)
    3



    Ceramic Filter for Communication Equipment?

    Part No.
    6dB Band width (KHz)min
    		Selectivity Band width (KHz)max Stop Band Att.(dB) Insertion Loss (dB)max In/Output Impedance (ohm)
    CFH
    CFL
    CFH CFL
    CFH455B CFL455B
    (+ -)15
    (+ -)30
    27
    35
    4
    1500
    CFH455C CFL455C
    (+ -)12.5
    (+ -)24
    27
    35
    4
    CFH455D CFL455D
    (+ -)10
    (+ -)20
    27
    35
    6
    CFH455E CFL455E
    (+ -)7.5
    (+ -)15
    27
    35
    6
    CFH455F CFL455F
    (+ -)6
    (+ -)12.5
    27
    35
    6
    2000
    CFH455G CFL455G
    (+ -)4.5
    (+ -)10
    35
    45
    6
    CFH455H CFL455H
    (+ -)3
    (+ -)9
    40
    60
    6

    SM Japan
    6dB Band Width (KHz)man
    Selectity Band Width (KHz)max
    		Stop Band Att. (dB) Insertion Loss (dB)ma
    In/Output Impedance (ohm)
    Part No.
    		CFH CFL
    CFH455H SFP455H
    (+ -)3
    40
    60
    6
    1.5
    4
    1500
    CFL455H SFP455H
    (+ -)3
    50
    75
    6
    1.5
    6
    1500

    1 In
    2 Gnd
    3 Out
    		 1 In
    2 3 4 Gnd
    5 Out

    10.7M Series of Ceramic Filter for FM(LT10.7MA5/A8/G3)

    ①Input

    ②Ground

    ③Output

    		Standard Rule
    Center Frequency Color
    D:10.64MHz±30KHz Black
    B:10.67MHz±30KHz Blue
    A:10.70MHz±30KHz Red
    C:10.73MHz±30KHz Orange
    F:10.76MHz±30KHz white


    TECHNICAL CHARACTERISTICS

    Part Number 3dB Band Width (KHz) 20dB Band Width (KHz) Insertion Loss (dB) Spurious Response 9-12MHz(dB) G.D.T Band Width (KHz) min
    LT10.7MA5 280±50 ≤650(520) ≤6(4) ≥80(43) -
    LT10.7MA8 280±50 ≤650(520) ≤6(4) ≥80(43) 0.5μSec.fo±80(±100)
    LT10.7MG3 180±40 ≤520 ≤7(5) ≥40 -

    TEST CIRCUIT

    CHARACTERISTICS

    10.7M Series of Ceramic Discriminator FOR FM (JT10.7MG3)

    Standard Rule
    Center Frequency Color
    D:10.64MHz±30KHz Black
    B:10.67MHz±30KHz Blue
    A:10.70MHz±30KHz Red
    C:10.73MHz±30KHz Orange
    F:10.76MHz±30KHz white


    TECHNICAL CHARACTERISTICS

    Part Number Demodulation Output (mV) Distortion Factor (%) Detection Method Applied IC
    JT10.7MG3 ≥500 ≤1 Differential Peak TA7130P μPC1028H
    LA1150 TA7303P

    EXAMPLE OF APPLICATION

    LC Ceramic Filter

    Product
    Types
    Centre
    Frequency(kHZ)
    		Insertion
    Loss(dB)
    Band Wide
    (KHz)
    		Band
    Fluctuation
    (dB)
    Selectivity
    (Loss)(dB)
    Insertion
    Loss(dB)
    Reflectire Loss
    In/Output
    Impedance
    (ohm)
    Main use
    47/48 MHz 51.5/230 MHz 47/48 MHz 51.5/230 MHz
    BPF87-108M 86-110MHz < =3
    *
    		<=15 >=14
    *
    *
    *
    *
    		75 a
    HP38001
    *
    *
    *
    *
    		25 2dB 1dB 10dB 15dB 75 b
    HP38003
    *
    *
    *
    *
    		25-30 2dB 1dB 10dB 15dB 75 b


    a : Frequency Modulation Recoder .
    b: Receiver of broadcast and TV set.

    Piezolectric pottery sherd

    Note: The measure, electromagnetism function
    and inbex can be made to
    costomers' order.



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    • Contact Us
      Tel：0086 573 87613218
      Fax：0086 573 87611362
      P.C.:314411
      Email：sales@sanmu.com.cn
      Add：No.70 Liancheng Road, Yanguan Town, Haining City, Zhejiang, China
      Website：http://www.sanmu.com.cn/
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