Vishay / Sfernice RPWA 650 Thick Film Power Resistors
Vishay / Sfernice RPWA 650 Thick Film Power Resistors feature 650W maximum rated power and a 6.2Ω to 1ΩM resistance range in a low-profile package with thick film deposited on ceramic. These high-power, non-inductive resistors offer easy assembly, self-calibrated pressure, a cold system without external radiation, and AEC-Q200 qualification (pending). The devices can be cooled with an auxiliary heatsink and include internal temperature monitoring via an NTC thermistor. The resin-filled case construction includes a cermet resistive element and alumina substrate, using materials that comply with UL 94V-0 standards. Vishay / Sfernice RPWA 650 Thick Film Power Resistors operate in a -55°C to +155°C temperature range.
Features
- AEC-Q200 qualified (pending)
- Thick film deposited on ceramic
- Cooled by auxiliary heatsink (not supplied)
- Cold system without external radiation
- High power
- Non-inductive
- Low profile
- Easy assembly, self-calibrated pressure
- Internal temperature monitoring with NTC thermistor
- Cermet resistive element
- Alumina substrate
- Resin-filled case
- Material complies with UL 94V-0
Applications
- Precharge, discharge, and active discharge
- Power conversion and snubber
Specifications
- 66.5mm x 13.3mm x 58mm dimensions (L x W x H)
- 650W maximum rated power
- 6.2Ω to 1ΩM resistance range
- ±5% or ±10% tolerance
- ±150ppm/°C temperature coefficient
- -55°C to +155°C operating temperature range (bottom case)
Dissipation
Dimensions
Published: 2026-06-10
| Updated: 2026-06-23