Non-Inductive HV Resistor for Capacitor Charging & Power Modules
Rated power range: 3W~500W
Working voltage range: <100kV
Rated resistance range: 100Ω~2000MΩ
Maximum withstand voltage: 100KV
Maximum accuracy: 1%
IP level: IP20
Vibration: 0.5g
Temperature drift range: ≤400ppm/℃
Working temperature range: -55℃～+70℃
Application areas: pulse circuits, high-voltage equipment
Description
Product Overview
Our non-inductive high voltage resistors are specially engineered for capacitor charging, pulse discharge, and power module protection. Thanks to their low inductance design and high insulation resistance, they ensure accurate energy control and reliable operation in high-voltage environments. As a result, these resistors are ideal for use in fast-pulse systems, inverter pre-charge circuits, and high-voltage power supplies. In addition, their compact size and customizable ratings—from 10kV to 50kV—make them suitable for space-constrained industrial applications.
Feature
The high voltage soft start resistor plays a vital role in inverter and power supply systems by effectively controlling inrush current during startup. As a result, it protects sensitive electronic components and contributes to stable system performance. Because of its reliability and non-inductive design, engineers widely apply this type of resistor in capacitor charging, pre-charge circuits, and high-voltage power modules.
range: 3W~500W
Working voltage range: <100kV
Rated resistance range: 100Ω~2000MΩ
Maximum withstand voltage: 100KV
Maximum accuracy: 1%
IP level: IP20
Vibration: 0.5g
Temperature drift range: ≤400ppm/℃
Working temperature range: -55℃～+70℃
Application areas: pulse circuits, high-voltage equipment
Product size table
| Type | Rated Power (W) | Structural type | Size (unit：MM) | Resistance range (Ω) | Maximum operating voltage(KV) | Temperature coefficient(10-6/℃) | Operating temperature(℃) | Resistance Tolerance(%) | |||
| Lmax | Dmax | L1 | d | ||||||||
| RI80 | 3 | A | 24±2 | 8±1 | 30±3 | 1±0.1 | 100~2G | 5 |
≤±200ppm |
-55℃~+70℃
|
F(±1%) G(±2%) J(±5%) K(±10%) |
| RI80 | 5 | A/B | 51±2 | 8±1 | 30±3 | 1±0.1 | 100~2G | 10 | |||
| RI80 | 10 | A/B | 72±2 | 12±1 | 30±3 | 1±0.1 | 100~2G | 15 | |||
| RI80 | 20 | A/B | 102±2 | 12±1 | 30±3 | 1±0.1 | 100~200M | 20 |
≤±400ppm |
||
| RI80 | 25 | A/B | 127±2 | 12±1 | 30±3 | 1±0.1 | 100~200M | 30 | |||
| RI80 | 30 | A/B | 152±2 | 12±1 | 30±3 | 1±0.1 | 100~200M | 40 | |||
| RI80 | 50 | B/C | 120±2 | 22±1 | 10±1 | M6 | 100~200M | 50 | |||
| RI80 | 75 | B/C | 130±2 | 27±1 | 10±1 | M6 | 100~200M | 70 | |||
| RI80 | 100 | B/C | 170±2 | 27±1 | 10±1 | M6 | 100~100M | 100 | |||
| RI80 | 200 | B/C | 260±2 | 27±1 | 10±1 | M5/M6 | 100~100M | 100 | |||
| RI80 | 300 | B/C | 310±2 | 27±1 | 10±1 | M5/M6 | 100~100M | 100 | |||
| RI80 | 500 | B/C | 310±2 | 53±1 | 10±1 | M8 | 100~100M | 100 | |||
Electrical Characteristics
| Parameter | Value |
|---|---|
| Resistance Range | 100Ω – 2000MΩ |
| Rated Voltage | 5kV – 100kV |
| Power Rating | 3W – 500W |
| TCR | ±100ppm/°C (typical) |
| Tolerance | ±1%、±3%、±5%、±10% |
| Construction | Thick Film, Glass Glaze |
| Mounting | Axial / Screw Terminal |
Applications
-
Inverter pre-charge circuits in motor control systems
-
High voltage DC power supply startup sequences
-
Renewable energy systems (e.g., solar inverters, battery storage)
-
Capacitor charging and discharging modules
-
High-frequency switching power supplies
Moreover, these resistors are often integrated into control cabinets where space is limited, yet high insulation and voltage endurance are required.
Looking for general-purpose HV resistors? Explore our high voltage thick film resistor series
