Switching phototransistor VTT9812FH

silicon

Product Overview
The VTT9812FH is a silicon phototransistor in a flat T1 3/4 end-looking package with an integrated IR-blocking feature in the epoxy. It delivers a strong response across the visible spectral range (450 nm to 700 nm) and is offered as a RoHS-compliant alternative to cadmium sulfide (CdS) photocells. The device is optimized for dusk/dawn switching and low-light detection around 0.2 to 1 fc (2 to 10 lux).

Features & Benefits

• Visible-light response with IR-blocking incorporated in the epoxy casting
• Low dark current for improved low-light performance
• RoHS-compliant alternative to CdS photocells

Applications

• Street light switching and control
• Interior and exterior dusk/dawn light control
• Automotive headlight dimmer systems
• Display contrast control
• Energy-saving lighting applications

Technical Specifications

• Active area = 0.192 mm²
• Short-Circuit Current = Minimum 60 µA at 100 fc, 2850 K
• Dark Current = Maximum 50 nA at 5 V VCE
• Spectral Range = 450 nm to 700 nm
• Peak Spectral Response = 585 nm
• Sensitivity at Peak Wavelength = Typical 7 A/W
• Angular Response = ±50° at 50% response
• Soldering Temperature = Maximum 260°C