The ILX Lightwave LDT-5412 is a precision bipolar, linear thermoelectric temperature controller engineered for laser diodes and sensitive optical components requiring stable thermal regulation. It delivers ±2.0 A output across ±3 V maximum, employing a hybrid proportional-integral control loop to achieve ±0.01°C long-term temperature stability and sub-5-second settling times. The instrument combines laboratory-grade accuracy with field-proven economy, making it suitable for research and production environments alike.
## Technical Specifications
• **Output Current:** -2.0 to +2.0 A bipolar
• **Maximum Voltage:** ±3 V
• **Temperature Stability:** ±0.01°C (typical, long term)
• **Settling Time:** <5 seconds
• **Control Algorithm:** Hybrid PI loop
• **Thermistor Sensor:** 2-wire NTC, 0–199.9 kΩ resistance range, 0.1 kΩ resolution
• **Thermistor Source Current:** User-selectable 10 µA or 100 µA
• **Temperature Control Range:** User-defined; -20°C to +50°C with standard 10 kΩ thermistor
• **AC Power Input:** 100/120/220/240 VAC nominal, ±10%, 50/60 Hz
• **Current Limiting:** Front-panel adjustable 0–2 A with active indicator
## Key Features
• 4-segment LED display with three selectable modes: Set Resistance, Actual Resistance, or TE Current output
• Unconditional current limiting prevents thermoelectric module overdrive
• 15-pin D-Sub rear connector for external set resistor and analog feedback signal (approximately 1 V/A)
• Analog output suitable for driving booster current supplies
• Benchtop form factor: 215 mm × 100 mm × 310 mm (W × H × D); 3.5 kg
## Typical Applications
Laser diode thermal stabilization, optical module temperature management, precision thermal control in research and industrial settings.
## Compatibility & Integration
Accepts NTC thermistors with external resistor support for reproducible setpoint configuration. Rear-panel analog output integrates with external booster supplies and monitoring systems.
