WHS302 Heatsink

The WTW002 thermal washer can be used to go between the WHS302 heatsink and following laser diode drivers and temperature controllers from Wavelength Electronics: WTCP5V5A, WTC3243, WTC3243HB, WHY5640, WLD3343, WLD3343-2L, WLD3343-3A, WLD33ND-3L or WLD3343HB.The WTW002 thermal washer is made of a non-silicone, flexible graphite material, and does not break down or out-gas under high heat conditions. One side has adhesive. We recommend that you install the adhesive side to the heatsink. The controllers operate to 500 mA without any additional heatsinking (assuming 5 V operation). To operate up to 1 A, add the WTW002 thermal washer and the WHS302 heatsink. To operate to the full 2.2 A, add a fan WXC303 (5 V) or WXC304 (12 V). For convenience, a kit with two 0.75" and two 1" screws is available: WXC305. Kits combine these elements: WEV300 (includes thermal washer, heatsink and screw kit),WEV301  (includes thermal washer, heatsink, screw kit, and a +5 V fan) or WEV302 (includes thermal washer, heatsink, screw kit, and a +12 V fan).Key Features Flexible graphite Adhesive backing Thermal conductivity up to 5 W / mK Extends the Safe Operating Area of the WLD, WTC, and WHY  

The WTC3243 is a compact, analog PI (Proportional, Integral) control loop circuit optimized for use in ultrastable thermoelectric temperature control applications. It easily handles variable operating conditions with a stability of better than 0.0009 ºC. The temperature setpoint is set by a remote voltage signal. It is capable of controlling both thermoelectric and resistive heaters, and only five external resistors are needed to optimize the controller for your specific application. The WTC3293 Evaluation Board is available to quickly integrate the WTC3243 into your system and can be optimized for sensor type. Use the adjustable trimpots to configure heat and cool current limits, proportional gain, and integrator time constant. The robust and reliable WTC3243 has been designed into electro-optical systems, airborne instrumentation, spectroscopic monitors, and medical diagnostic equipment. It is particularly well-suited to applications where temperature is scanned across ambient. Key Features Linear PI Control Stability of 0.0009°C Heat and Cool Current Limits Adjustable Sensor Bias Current Drive ±2.2 A of TEC or Resistive Heater Current Small Size of 1.3" X 1.28" X 0.313" Supports Thermistors, RTDs, and IC Sensors Single Supply Operation: +5 V to +30 V 14-pin DIP PCB Mount Monitor Actual Temperature Quickly and easily integrated with WTC3293 Evaluation Board