Bourns RTDW Precision Wirewound Temperature Sensors
Bourns RTDW Precision Wirewound Temperature Sensors (formerly Riedon™) are designed for applications requiring accurate temperature measurement and stable resistance over time. These Bourns sensors deliver exceptional performance with a resistance tolerance of ±1% or ±5% for precise readings and a temperature coefficient of resistance (TCR) up to ±6000ppm/°C. Built with an all-welded design and flame-/moisture-resistant encapsulation, the RTDW sensors ensure durability and reliability in harsh environments. Standard resistance values include 100Ω, 500Ω, and 1KΩ at +25°C. The sensors operate within a temperature range of 0°C to +100°C and feature a response time of approximately 40 seconds for 50% and 100 seconds for 90% in still air. These sensors maintain excellent stability at less than 100ppm/°C per year and use matte tin plating over copper terminations, compliant with MIL-STD-202 soldering requirements.
These sensors are ideal for precision temperature sensing in industrial, laboratory, and control systems where accuracy and reliability are critical. Multiple sizes and configurations are available, along with resistance and tolerance codes for customization to meet specific application needs.
Features
- Formerly a Riedon product
- ±1% and ±5% resistance tolerances
- TCR to ±6000PPM/°C
- Flame and moisture-resistant protective encapsulation
- All-welded construction
- RoHS compliant
Applications
- Industrial temperature measurement
- Instrumentation
- Medical and scientific equipment
- Automotive subsystems
- Electronics and PCB integration
- Environmental monitoring
Specifications
- 100Ω, 500Ω, and 1KΩ standard resistance values
- Recommended measurement current
- 1mA to 7mA for 100Ω
- 0.7mA to 3mA for 500Ω
- 0.1mA to 1mA for 1KΩ
- ±1% or ±5% tolerance options
- 40s to 100s approximate response time range
- <100PPM/°C stability per year
- 0°C to +100°C temperature range
- 99.9% Nickel, Balco, or Rediseal alloy options
- 100% matte tin plating over copper terminations
- Meets the soldering requirements of MIL-STD-202, Method 208
- RTDW temperature sensors should not be used in unprotected moist environments or in aggressive atmospheres