EF8531 – Sapphire Window

Pulsable IR Source

HelioWorks, Inc. offers a unique pulsable infrared emitter with three (3) radiating elements that can be addressed individually (4 lead package), or in total (2 lead package). It can operate in pulsed or steady state mode at a peak temperature of 700°C (973°K) in an industry standard TO-8 package with a Sapphire window. Specify either 2 lead (EF-8531-2) or 4 lead (EF-8531-4) version. Photo shows 4 lead version.

Key features include:

• Filament has uniform emitting area
• Emissivity is 0.88
• Sapphire window
• Operates in pulsed or steady state mode
• Industry standard TO-8 package
• Operates at peak temperature of 700°C (973°K)
• Large temperature change, T, during pulsing

Electrical Specifications (2 lead package):

• Peak Voltage = 3.00 Volts DC MAXIMUM
• Peak Current = 1.34 Amps
• Peak Power r = 4.0 Watts

Current vs. Voltage

Radiant Exitance

Volts =3.0, Distance = 2.0 inches from source

Printable Version