Key facts
- Brand
- Vishay
- Model
- RTO 50
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-12
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Vishay RTO 50 Power Resistor Datasheet
The RTO 50 is a 50 W thick‑film power resistor offered by Vishay Sfernice in a TO‑220 package. It features sand‑trimmed resistance values, non‑inductive construction, and is RoHS‑compliant. The device can be supplied in leaded (radial) or surface‑mount versions.
Technical data include a resistance range from 0.010 Ω to 550 kΩ, tolerances from ±1 % to ±10 %, and a temperature coefficient of ±150 ppm/°C. The resistor is rated for operation from –55 °C to +155 °C, with a thermal resistance (junction‑to‑case) of 2.6 °C/W and a maximum voltage rating of 300 V (UL).
Vishay RTO 50 specifications
| Power rating | 50 W at +25 °C (heatsink mounted) |
|---|---|
| Thermal resistance (junction‑to‑case) | 2.6 °C/W |
| Resistance range | 0.010 Ω to 550 kΩ |
| Tolerance | ±1 % to ±10 % |
| Temperature coefficient | ±150 ppm/°C |
| Maximum voltage | 300 V (UL) |
| Insulation resistance | ≥ 10⁶ MΩ |
| Operating temperature range | -55 °C to +155 °C |
| Weight | 2.2 g max |
All Vishay RTO 50 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum power rating of the RTO 50?
The RTO 50 can dissipate 50 W when mounted on a heatsink at +25 °C.
What is the thermal resistance from junction to case?
The junction‑to‑case thermal resistance is 2.6 °C/W.
What is the maximum power rating of the RTO 50 resistor?
The RTO 50 can dissipate up to 50 W at an ambient temperature of 25 °C.
What temperature range can the RTO 50 operate in?
It operates from –55 °C up to +155 °C.