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Ri80 Series Cylindrical High Voltage Thick Film Resistor 2W-200W, Non-Inductive, RoHS for X-ray & Industrial Power

Name: Ri80 Series Cylindrical High Voltage Thick Film Resistor 2W-200W, Non-Inductive, RoHS for X-ray & Industrial Power
Brand: Guangdong Qingda Electronic Technology Co., Ltd
SKU: opRYOXNvMaVZ
Price: 1.00 USD
Availability: InStock

US$1.00-100.00 100 Pieces (MOQ)

Port:

Zhuhai, China

Payment Terms:

L/C, T/T

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Guangdong Qingda Electronic Technology Co., Ltd

Guangdong, China

Last Login Date:

Aug 04, 2025

Main Products:

Resistor, High Voltage Resistor, Resistance Box, RF Resistor, High Precision Resistor, High Power Resistor

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Product Description

Company Info

Basic Info.

Model NO.

2W 3W 5W 10W 20W 50W 100W 200W

Material

Ceramic and Metal

Trademark

Qingda

Origin

Guangdong

Product Description

I. Full-Range Power Model Specifications Table

Power	Dimensions (Ø×L)	Resistance Range	Max Operating Voltage	Temp. Coefficient (ppm/°C)	Core Application Scenarios
1W	Ø9mm × 24mm	100Ohm-2GOhm	5 kV	≤200	Microcurrent measurement, high-frequency signal sampling
2W	Ø9mm × 30mm	100Ohm-2GOhm	5 kV	≤200	Medical equipment voltage division, instrumentation
3W	Ø9mm × 30mm	1kOhm-10GOhm	15 kV	≤200	AC/DC high-voltage equipment, pulse circuits
5W	Ø9mm × 50mm	1kOhm-10GOhm	15 kV	≤300	Electrostatic precipitation, high-frequency buffering
10W	Ø11mm × 72mm	100Ohm-2GOhm	30 kV	≤300	Inverter voltage division, X-ray machine sampling
20W	Ø12mm × 102mm	100Ohm-200MOhm	30 kV	≤400	Industrial inverter buffering, capacitor arc suppression
50W	Ø22mm × 120mm	100Ohm-200MOhm	50 kV	≤400	Power surge generators, high-power supplies
100W	Ø27mm × 170mm	10Ohm-100MOhm	100 kV	≤400	High-energy pulse modulation, imaging equipment
200W	Ø27mm × 260mm	10Ohm-100MOhm	100 kV	≤400	Large-scale power equipment testing, vacuum protection
300W	Ø27mm × 310mm	10Ohm-100MOhm	100 kV	≤400	Heavy industry energy discharge
500W	Ø53mm × 310mm	10Ohm-100MOhm	100 kV	≤400	Ultra-high voltage systems (e.g., semiconductor processing equipment)

Notes:

Resistance Coverage: Low-power models (≤10W) support ultra-high resistance (up to 10GOhm). High-power models (≥20W) focus on medium-low resistance (10Ohm-200MOhm).
Accuracy Grades: Standard ±5%. ±1% high precision requires customization.

II. Core Product Characteristics

1. Non-Inductive High-Frequency Design

Serpentine thick-film glaze process: Inductance <1μH, supports MHz-level circuits (e.g., medical CT machines, radar pulses).
Critical high-frequency applications: Use HVR80A optimized version (inductance <0.1μH, silicone resin encapsulated).

2. High Voltage & Stability

Voltage withstand: 15kV (3W models) → 100kV (500W models). Complies with GB 18384-2020 EV insulation standard (requires ≥100Ohm/V).
Voltage coefficient ≤-50ppm/V: Resistance drift <±0.2% under high voltage (e.g., <±2% error for 200MOhm at 2kV).
Temperature range: -55°C to +125°C (standard); extended to -55°C to +225°C for 100W models.

3. Structure & Materials

Ceramic substrate: ≥95% alumina content, high-temp sintered for mechanical strength.
Copper cap terminals: Crimp-type contacts withstand 20N insertion force; support bolt mounting.
Surface coating: High-voltage red/green insulation paint ("High-Voltage Red" identifier), chemical/heat-resistant.

III. Typical Application Scenarios

Field	Scenario	Recommended Power Models	Advantages
Medical	CT/X-ray signal acquisition	3W/5W (1MOhm-1GOhm)	Non-inductive, ±1% precision
Energy & Power	PV inverter balancing	20W-100W (10Ohm-100MOhm)	100kV withstand, surge-resistant
Industrial	Electrostatic precipitation	50W-200W	High-temp stability (≤400ppm/°C)
HF Comms	RF termination, radar pulse	1W-5W (non-inductive versions)	<0.1μH inductance, MHz response
Power Systems	Surge generators	200W-500W	100kV withstand, high energy absorption

IV. Critical Selection Guidelines

1. Resistance Accuracy Validation

Ultra-high resistance (≥500MOhm):
·Carbon film resistors may show ≤20% error under high voltage. Use glass glaze resistors (error <2%) or metal oxide film.
·Test method: Use shielded enclosures; humidity >60% causes leakage current (5% resistance deviation per 10% RH increase).
·HF applications: Keep lead lengths <10mm; prioritize copper cap/silver-plated terminals.

2. Thermal Derating Design

**≥20W models**: Require heatsinks (e.g., TO-247 cooler, thermal resistance ≤10°C/W).
**>70°C environments**: Derate power by 30%.

3. Voltage Withstand & Lifespan

Operating voltage ≤50% of rated value (e.g., ≤50kV for 100kV-rated models).
Lifespan validation: ≤±0.25% drift after 1,000 hrs at rated power (per MIL-STD-202).

Address: No. 2357 Huxin Road, Zhuhai, Guangdong, China

Business Type: Manufacturer/Factory

Business Range: Consumer Electronics, Electrical & Electronics

Management System Certification: ISO 9001

Main Products: Resistor, High Voltage Resistor, Resistance Box, RF Resistor, High Precision Resistor, High Power Resistor

Company Introduction: Guangdong Qingda Electronic Technology Co., Ltd was founded in 2011, it is one of the first-class resistors and Inductor with international competitiveness in China. It is a national high-tech enterprise and Zhuhai specialized, special & new enterprise. The production plant covers an area of 6000 square meters.

Qingda continues to implement ISO 9001, ISO14001 management system, with nearly 20 years of professional R & D experience as well as marketing, sales and service experience. We have long-term cooperation with many state-owned enterprises and central enterprises, such as ZTE, , CMIE, CRRC, etc. Also we are the supplier for well-known customers, , and have cumulatively served nearly 5, 000 customers.

Products are exported to 50 countries and regions such as Europe, North America, South America, and Asia, etc., covering industrial control, braking and equipment fields such as new energy vehicles, wind power generation, photovoltaic power generation, rail transit, frequency converters, servo, CNC, elevators, robots, power supplies, ships and docks; The applications of military industry, aviation, data center, communication, telecommunications, universities, colleges and research institutes, etc.

After nearly 20 years of struggle, Qingda has integrated with its customers and suppliers with its humanistic feelings, social responsibility, craftsman spirit, and has also achieved customer satisfaction, employee satisfaction and social satisfaction.

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