SFH 2504 Photodiode with Temperature Sensor ams OSRAM SFH 2504 Photodiode with Temperature Sensor is available in a 5mm LED plastic package. This photodiode features an integrated Negative Temperature Coefficient (NTC) thermistor and is suitable for applications between 740nm to 1100nm ranges. The SFH 2504 Photodiode is ideal for temperature and light intensity measurement applications.