Application and Selection of DLCP High Q Capacitors

  Based on the valuable experience accumulated by Dalicap in the R & D, manufacturing, sales and service of RF/ microwave capacitors over the years, as well as its profound understanding of the application of capacitor products, we will share with you how to choose the most suitable high-Q capacitor for different application scenarios and needs in various industries and fields.

 

Classification of Dalicap capacitor

 

Series of DLC70

Product features: Palladium internal electrode, Silver external electrode, 1300 degree sintering of ceramic

Product advantages: High reliability, High power, High voltage, High Q, Low loss

Product size: 70H(0402) 70A(0505) 70P(0603) 70R(0708) 70D(0805) 70B(1111) 70C(2225) 70E(3838) 70F(6040) 70G(7575) 70L(130130)

Series of DLC75

Product features: Silver internal electrode, Silver external electrode, 900 degree sintering of ceramic

Product advantages: Ultra high Q, Ultra low loss

Product size: 75H(0402) 75P(0603) 75R(0708) 75D(0805) 75B(1111)

 

Analysis of capacitor selection

 

  For products of the same product series with the same capacitance and different sizes, the larger the size, the higher the working voltage and the lower the frequency of use.

 

Product	Size	Capacitance	Rated voltage	PRF
DLC75D100	0805	10pF	250VDC	5.2GHz
DLC75B100	1111	10pF	500/1000VDC	4.2GHz

 

  For products with the same size and different capacitance values of the same product series, the larger the capacitance value, the lower the working voltage and the lower the use frequency.

 

Product	Size	Capacitance	Rated voltage	PRF
DLC75B100	1111	10pF	500/1000VDC	4.2GHz
DLC75B101	1111	100pF	300/600VDC	2.3GHz

 

Usage frequency and application field of capacitor

 

• 30MHz and below

Application field: Shortwave radio, RF power supply

Capacitor products: 70B、70C、70E、70F、70G、70L、Power assembly

RF power supply is a key module of semiconductor processing equipment, with a typical operating frequency of 13.56MHz. Large size capacitors and power components are usually used.

DLC542 capacitor assembly

 

• 30-800MHz

Application field: MRI、Ultrashort wave radio、Radio and television transmitter

Capacitor products: 70P、70D、70B、70C、70E、75P、75D、75B

70E201 S21 vs Freq

 

• 0.8-3.5GHz

Application field: Mobile communication base station

Capacitor products: 70A、70B、70P、70D、70R、75H、75P、75D、75B、75R

70B100 S21 vs Freq

 

• 3.5-10GHz

Application field: Satellite communication、Radar

Capacitor products: 70A、75H、75P、75D、75R

70A4R7 S21 vs Freq

 

• 10-100GHz

Application field: High speed optical communication、Millimeter wave 5G communication、Millimeter wave radar

Capacitor products: Single layer capacitor、BB series Ultra wideband capacitor

 

DLC SG1010K252P101 S21 vs Freq

DLC 0201BB104 S21 vs Freq

 

  As a basic component, high-Q capacitors are widely used in various fields. As a world-famous manufacturer of RF/microwave ceramic capacitors, Dlicap has been deeply engaged in the field of RF/microwave capacitors for many years and has a profound understanding of product applications.

  This paper provides a reference for customers' applications. Dalicap can carry out specific optimization design and targeted improvement according to customers' specific use needs, and do its best to meet customers' requirements for high-Q capacitors.