Transimpedance gain is specified by the user. Heat sink modules are available for detector arrays with thermoelectric coolers. Pins 1 and 21 are connected to the common substrate. The gap between elements is 0.01mm. The silicon photodiode responds to radiation from 400 nm to 1000 nm.
Longer wavelengths pass through the silicon and are detected by the detector underneath.
J16Si Series detectors are ideal for optic power measurements that need to differentiate between 800 nm and either 1300 nm or 1550 nm. They are also useful for two-color temperature measurements. The J14SI Series are used when the temperature measurement range needs to be expanded. Thermoelectrically Cooled Ge Detectors J16TE Series detectors are Judson's high-quality Ge photodiodes mounted on thermoelectric coolers for reduced dark current, improved sensitivity and superior stability. The TE coolers require less than 3W of DC power.