RY31B type ultra high frequency oxide film resistor
1. Purpose and characteristics:
The product has wide resistance range, good stability, pulse resistance, overload capacity, can withstand up to 300kv pulse voltage, the product resistance is as high as 3kΩ±3%, and after multi-stage transmission, the conversion curve waveform has no obvious change.
2. Packaging form:
porcelain shell
3. External size:

| Rated power consumption at 25℃ W | nominal candle-power Ω | outline dimension mm | maximum weight (g) | |
| Lmax | D max | |||
| 1000 | 3k | <300 | <50 | 1000 |
| 90 | ||||
4. Main technical indicators:
| 25℃Rated power dissipation W | nominal resistance Ω | nominal candle-power allowable deviation % | Pulse operating voltage kv | Pulse limit voltage kv | Resistance temperature characteristic ×10-6/℃ | interelectrode electric capacity pF |
| 1000 | 3k | ± 3 | 200 | 300 | ±600 | ≤30 |
| 90 | 230 | <50 | ||||
| Note: a, the rated power consumption of the resistor is the DC power consumption when the working medium is transformer oil at 25℃; b) The working medium is transformer oil for the 3kΩ resistor, the first peak of the pulse waveform is a quasi-sine attenuated wave with a pulse width of 3±1μs and a repetition rate of 1/600Hz; for the 90Ω resistor, the pulse waveform is a square wave with a pulse width of 100+20-30ns and a repetition rate of 1/600Hz | ||||||