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XIAN XIWUER ELECTRONIC AND INFO. CO., LTD

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China The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors
China The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors

  1. China The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors
  2. China The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors

The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors

  1. MOQ: 1pcs
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms L/C,T/T
Supply Ability 4,000,000 pcs a year
Delivery Time 5-7days
Packaging Details Carton
Dissipation ≦0.0040
Withstanding voltage 1.5Ur● 1min
Insulation resistance ≧1.0×105MΩ
Brand Name XIWUER
Certification ISO9001,ISO14001,ISO45001
Place of Origin XIAN, CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T Supply Ability 4,000,000 pcs a year
Delivery Time 5-7days Packaging Details Carton
Dissipation ≦0.0040 Withstanding voltage 1.5Ur● 1min
Insulation resistance ≧1.0×105MΩ Brand Name XIWUER
Certification ISO9001,ISO14001,ISO45001 Place of Origin XIAN, CHINA
High Light high voltage doorknob capacitors for NMR probeshigh voltage capacitors for power amplifiersdoorknob capacitors with high voltage rating

The Power of RF Systems: The Critical Role of High-Voltage Doorknob Capacitors in NMR Probes and Power Amplifiers

The radio frequency system of a nuclear magnetic resonance instrument is a key component for exciting atomic nuclei and receiving their weak signals. Its performance directly determines the instrument's sensitivity and accuracy. Both the high-power radio frequency pulses required by the transmitting coil and the low-noise amplifier at the front end of the receiving channel require a stable, efficient high-voltage power supply. High-voltage doorknob capacitors play a key role in pulse shaping and energy transfer.

Drawing:
High Voltage Doorknob Capacitor product image

Parameters:

No. Specification Dissipation Withstanding voltage Insulation resistance Dimension(mm)
1 20kV-2000pF








≦0.0040








1.5Ur 1min








≧1.0×105MΩ

D H L D M
2 20kV-10000pF 45 19 23 12 5
3 20kV-18000pF 65 15 19 12 5
4 30kV-1000pF 80 17 25 12 5
5 30kV-2700pF 45 24 32 12 4
6 30kV-12000pF 60 20 28 12 4
7 40kV-150pF 20 33 41 8 4
8 40kV-500pF 28 33 41 8 4
9 40kV-7500pF 80 24 29 12 6
10 40kV-10000pF 80 22 26 16 5
11 50kV-1000pF 50 30 34 12 4
12 50kV-1000pF 32 27 31 16 5
13 50kV-5600pF 80 31 35 16 5
14 60kV-1500pF 50 31 34 12 5
15 60kV-3000pF 65 32 35 16 5
16 100kV-500pF 50 54 58 12 5
17 100kV-2000pF 51 32 35 16 5
18 Insulator type 100kV-1500pF 68 36 40 16 5
19 150kV-820pF 65 95 100 12 5
20 200kV-600pF 50 90 94 16 5


Solution: Ensuring Energy for High-Fidelity RF Pulses

High-voltage doorknob capacitors play a critical role in the anode modulation circuit or DC energy storage of RF power amplifiers:
Pulse Energy Sink: During RF pulse transmission, the amplifier requires a high instantaneous current. Our capacitors act as efficient instantaneous energy reservoirs, providing high peak currents to ensure a steep leading edge and a flat top of the RF pulse.

Efficient Filtering: Their low ESR/ESL characteristics ensure extremely low high-frequency impedance on the power bus, effectively suppressing interference from power stage switching noise on the RF signal and guaranteeing a pure output waveform.


Non-Magnetic Design:

Ensuring the Performance Bottom Line of Ultra-High-Field Spectrometers
In ultra-high-field NMR instruments, any slight paramagnetic or ferromagnetic impurities can severely disrupt the uniformity of the main magnetic field. Our high-voltage doorknob capacitors are optionally constructed of completely non-magnetic materials (such as specialized ceramic dielectrics, non-magnetic epoxy resins, and silver-plated terminals) to ensure they introduce no magnetic field interference, ensuring the instrument achieves its designed resolution.


Company Details

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  • Business Type:

    Manufacturer,Importer,Exporter,Seller

  • Year Established:

    1976

  • Total Annual:

    240M-270M

  • Employee Number:

    390~450

  • Ecer Certification:

    Verified Supplier

Xian Xiwuer Electronic & Info. Co., Ltd. is a wholly state-owned company with a registered capital of 91.46 million RMB Yuan, owning a total assets of 315 million RMBYuan, under the jurisdiction of Xi'an State-owned Assets Supervision & Management Committee. There are about 400 employees, wi... Xian Xiwuer Electronic & Info. Co., Ltd. is a wholly state-owned company with a registered capital of 91.46 million RMB Yuan, owning a total assets of 315 million RMBYuan, under the jurisdiction of Xi'an State-owned Assets Supervision & Management Committee. There are about 400 employees, wi...

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  • XIAN XIWUER ELECTRONIC AND INFO. CO., LTD
  • No.1118, Ziqiang Road, Xi'an-710015, Shaanxi, China.
  • https://www.highvoltcapacitor.com/

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