CATEGORIES
WTC32ND 2.2 A Temperature Controller
- Ultrastable PI control
- Drive ±2.2A of TEC or RH current
- Linear Stability: 0.0009°C
- Small size: 1.3" x 1.28" x 0.313"
- Heat and cool current limits
- Supports Thermistors, RTDs, IC sensors
- Single supply operation: +5 V to +30 V
- Adjustable sensor bias current
- 14 pin DIP PCB mount
- Monitor Actual Temperature
1 - 5 each
$104.00
-
1 - 5 each$104.00
-
6 - 14 each
$104.00$97.00 -
15 - 24 each
$104.00$95.00 -
25+ each
$104.00$93.00
Contact Factory for High Volume Pricing
Price adjustments will be reflected in the cart. For availability information please contact us.
All prices are in US dollars. Prices do not include shipping charges. All prices will be confirmed at time of shipment and may include pass-through tariff estimates.
If ordering from or shipping to Australia, China, or Hong Kong, please contact your distributor.
The compact design of the WTC32ND Temperature Controller achieves 0.0009°C temperature stability. Its award winning package can be integrated with a heatsink WHS302, thermal washer WTW002, and fans WXC303 (+5 V) or WXC304 (+12 V) for easy prototyping. The linear, PI control loop offers maximum stability while the bipolar current source has been designed for higher efficiency. The WTC32ND drives up to 2.2 A for either Thermoelectrics (bipolar) or Resistive Heaters (unipolar). An evaluation board simplifies prototyping: WTC32ND-EV. A model compatible with Li-ion batteries is available: WTC32ND-HB.
The WTC32ND temperature controller is easily configured for any design. A circuit calculator tool speeds selection of external component values (see Design Tools tab). Virtually any type of temperature sensor can be used with it and a built in sensor bias current source simplifies use with resistive temperature sensors. The Proportional Gain (P) and Integrator Time Constant (I) are set by external resistors and can be modified to optimize temperature overshoot and stability.
Other features offer added flexibility. Independent heat and cool current limits are set by single resistors. An onboard reference voltage simplifies potentiometer control of the temperature setpoint. You can also choose to operate remotely with an external setpoint voltage. Monitor actual sensor voltage at pin 9.
The robust and reliable WTC32ND-HB is designed into handheld electro-optical systems, eye-safe atmospheric lidar, airborne instrumentation, Raman spectrometers and medical diagnostic equipment. The WTC is particularly suited to applications where temperature is scanned across ambient.
Wavelength provides the free LabVIEW Virtual Instrument executable file for use with the WTC32ND-EV Evaluation Board. Click here to download. The executable VI also requires the 2017 LabVIEW Run-Time Engine, available for free download from the National Instruments website: https://www.ni.com/en-us/support/downloads/software-products/download.labview-runtime.html#369481, as well as the DAQmx Viewer also available for free from the NI website: https://www.ni.com/en-us/support/downloads/drivers/download.ni-daqmx.html#382067.
The source code for the LabVIEW Virtual Instrument module is available for free in case you wish to modify the program yourself. Alternately, Wavelength can customize the Virtual Instrument to suit your application. Contact a Sales Engineer for assistance.
WTC32ND vs. WHY56ND:
– The WTC32ND incorporates remote voltage control and temperature monitor. The WHY56ND does not.
– The WTC32ND supports AD590 and LM335.
– The WHY56ND requires external circuits to operate anything other than resistive sensors.
– Two or more WHY56NDs can be used together for more output current.
– If you do not need all the features of the WTC32ND, the WHY56ND is a lower cost solution.
NOTE: The WHY56ND and WTC32ND do NOT have the same pin configuration.
Free, effective, and responsive technical support is available to simplify integration of Wavelength products into your OEM design. The standard product can be easily modified to meet your application requirements.
Supply Range: +5 to +30 V
Temperature Control Output Current: up to ±2.2 A
Temperature Stability: 0.0009°C (10 kΩ thermistor at 25°C) over one hour
Stability across ambient: 0.002°C (10 kΩ thermistor at 25°C) over an hour – Ideal for scanning applications
Setpoint vs. Actual Temperature Accuracy: 2 mV typical
Features:
-Heat and Cool Current Limits
-PI controller minimizes overshoot and time to temperature
-Compatible with multiple sensors
-Adjustable sensor bias current optimizes sensor feedback voltage
-Can operate with unipolar current for Resistive Heaters
Maximum Power Dissipation: 9 W
Heatspreader Temperature Rise: 30°C / W without external heatsinking
14 pin DIP PCB Mount size: 33 x 32 x 8 mm
WTC32ND Temperature Controller Pinout – Top View
NOTE: The WHY56ND and WTC32ND do NOT have the same pin configuration.
MECHANICAL / CAD DRAWINGS
- WxxND Series Controller Assembly (IGS)
- WxxND Series Controller Assembly (PDF)
- WxxND Series Controller Assembly (SLDDRW)
- WxxND Series Controller Assembly (SLDPRT)
- WxxND Series Controller Assembly (STL)
- WxxND Series Controller with WEV300 Thermal Kit Assembly (IGS)
- WxxND Series Controller with WEV300 Thermal Kit Assembly (PDF)
- WxxND Series Controller with WEV300 Thermal Kit Assembly (SLDDRW)
- WxxND Series Controller with WEV300 Thermal Kit Assembly (SLDPRT)
- WxxND Series Controller with WEV300 Thermal Kit Assembly (STL)
- WxxND Series Controller with WEV301 Thermal Kit Assembly (IGS)
- WxxND Series Controller with WEV301 Thermal Kit Assembly (PDF)
- WxxND Series Controller with WEV301 Thermal Kit Assembly (SLDDRW)
- WxxND Series Controller with WEV301 Thermal Kit Assembly (SLDPRT)
- WxxND Series Controller with WEV301 Thermal Kit Assembly (STL)
SOFTWARE
APPLICATION & TECH NOTES
- AN-LD11: How to Add Complex Technology -- Build or Buy?
- AN-LDTC02: Environmental Regulation Compliance Guide
- AN-LDTC04: Test Load Basics
- AN-LDTC06: ESD Basics
- AN-LDTC08: Product Selection & Comparison
- AN-TC08: Mounting and Soldering Nickel-Lead Thermistors
- AN-TC09: Specifying Thermoelectric Coolers
- AN-TC10: Temperature Controller Basics
- AN-TC11: Thermistor Basics
- AN-TC14: Calibration Coefficients and Thermistor Selection
- AN-TC15: Compliance Voltage & Temperature Control Design with Multiple Thermoelectric Coolers
- CS-LDTC04: Eye-safe Atmospheric Lidar Measurements
- CS-LDTC09: Ammonia Gas Detection With Laser Absorption Spectroscopy for Livestock
- CS-TC08: VCSEL Absorption Spectroscopy of Chip-scale Rubidium Atomic Vapor
- CS-TC09: Simultaneous Multi-Gas Detection Using ICL Photoacoustic Spectroscopy
- TN-TC01: Optimizing Thermoelectric Temperature Control Systems
- TN-TC02: How is Temperature Stability Measured?
CITATIONS
- US Patent 7,656,526 -- LIDAR System for Remote Determination of Calibrated, Absolute Aerosol Backscatter Coefficients
- Ultrasensitive nanoparticle detection using a portable whispering gallery mode biosensor driven by a periodically poled lithium-niobate frequency doubled distributed feedback laser
- LIDAR System for Remote Determination of Calibrated, Absolute Aerosol Backscatter Coefficients
- A compact QCL spectrometer for mobile, high-precision methane sensing aboard drones
- Research on method for high sensitive detection of harmful gases in livestock houses based on laser absorption spectrum
- Research on method for detection of harmful gases in livestock based on open path laser absorption spectrum
ACCESSORIES
| SKU | DESCRIPTION | PRICE | IMAGE |
| WTC32ND-EV | Evaluation PCB for WTC32ND Temperature Controller |
$165.00 You save (%) |
 |
| WTW002 | WTW002 Thermal Washer for Wxx Controllers |
$3.00 You save (%) |
 |
| WHS302 | WHS302 Heatsink for WXX Controllers |
$16.00 You save (%) |
 |
| WXC303 | WXC303 +5 V Fan |
$33.00 You save (%) |
 |
| WXC304 | WXC304 +12 V Fan |
$33.00 You save (%) |
 |
| WXC305 | WXC305 Screw Kit | $6.00 |  |
| TCS10K5 | TCS10K5 10 kΩ Thermistor (0.5x3mm) Sold in 5-packs |
$99.00 You save (%) |
 |
| TCS610 | TCS610 10 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
 |
| TCS620 | TCS620 20 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
| TCS650 | TCS650 50 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
| TCS651 | TCS651 100 kΩ Thermistor (2x3mm) Sold in 10-packs |
$99.00 You save (%) |
|
KITS
| SKU | DESCRIPTION | PRICE | IMAGE |
| WEV300 | WEV300 Thermal Solution Kit |
$25.00 You save (%) |
 |
| WEV301 | WEV301 Thermal Solution Kit with +5 V Fan |
$51.00 You save (%) |
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| WEV302 | WEV302 Thermal Solution Kit with +12 V Fan |
$51.00 You save (%) |
 |
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