Silicon photodiode VTH3020

infraredwavelength-sensitivechip on carrier

Overview
The Excelitas VTH3020 is a Chip-on-Board (CoB) large-area silicon photodiode with a 100 mm² active area, designed for alpha particle and radon gas detection. The CoB construction streamlines reflow assembly and reduces optical absorption from window assemblies, improving responsivity to alpha particles and low-level radiation sources.

Features

• Chip-on-Board (CoB) construction for simplified reflow assembly
• Optimized responsivity to alpha particles by minimizing window absorption
• Large active area to maximize collection efficiency for low-level radiation
• Available active area sizes: 5 × 5 mm and 10 × 10 mm
• Spectral response range: 400 nm to 1100 nm

Applications

• Radon detection
• Alpha particle detection

Technical specifications

• Active area: 100 mm²
• Dark Current: Maximum 10 nA at 20 V reverse bias
• Junction Capacitance: Maximum 120 pF at 20 V reverse bias
• Spectral Range: 400 nm to 1100 nm
• Peak Spectral Response: 925 nm
• Sensitivity at peak wavelength: Typical 0.70 A/W
• Breakdown voltage: > 100 V