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Dielectric Filters - DF Series

Dielectric Filters DF Series B Type

Dielectric filters DF series with high permittivity, high dielectric constants, extremely temperature stability and high Q that enables the design of stable microwave oscillators and filters.
Applications for CT1, CT2, 900MHz, 1.8GHz, 2.4GHz, 5.8GHz Cordless Phone, wireless earphone, wireless microphone.


High dielectric materials and associated products are also available for custom application requirements.

DF - B Type Configuration & DF - B Type Dimensions (Unit: mm)
Dielectric filters DF - B Type Configuration Dielectric filters DF - B Type Dimensions

DF - B Type Typical Specifications
Part No. Center
Frequency
(MHz)
Band Width
(MHz)
Insertion
Loss
(dB)max.
Ripple in
Band Width
(dB)max.
V.S.W.R
max.
Attenuation
(dB)min.(MHz)
DF650S30B 650 fo±15 2.5 0.5 1.5 19 at fo±64
DF700S20B 700 fo±10 2.5 0.5 1.5 19 at fo±64
DF710S08B 710 fo±4 5.0 0.5 1.5 35 at fo+100;   28 at fo+50
DF746S20B 746 fo±10 2.5 0.5 1.5 12 at fo-20
DF758S16B 758 fo±8 2.5 0.5 1.5 19 at fo±64
DF794S20B 794 fo±10 2.5 0.5 1.5 19 at fo±64
DF800S08B 800 fo±4 5.0 0.5 1.5 35 at fo+100;   28 at fo+50
DF836S20B 836 fo±10 2.5 0.5 1.5 19 at fo+52
DF850S08B 850 fo±4 5.0 0.5 1.5 30 at fo+100;   40 at fo-200
DF863S22B 863 fo±11 2.0 0.5 1.5 50 at fo-90;   20 at fo+90
DF875S24B 875 fo±12 2.3 0.5 1.5 30 at fo-70
DF903S09B 903 fo±4.5 3.5 0.5 1.5 34 at fo-64;   41 at fo+64
DF906S20B 906 fo±10 2.5 0.5 1.5 19 at fo±64
DF916S30B 916 fo±15 2.7 0.5 1.5 20.5 at fo±70

DF - B Type Typical Characteristic

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