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    Parts    SFH 4728CS A01-FA2FB2
SFH 4728CS A01-FA2FB2

SFH 4728CS A01-FA2FB2

ams OSRAM AG
Infrared (IR) Emitter 950nm (935nm ~ 960nm) 2.75V 1.5A 1250mW/sr @ 1A 50° 3-SMD, No Lead
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Overview

The SFH 4728CS A01-FA2FB2 is a high-power 940nm infrared emitter from the OSLON Black series, specifically designed for automotive and industrial sensing applications. It features a double-stack emitter for high efficiency and a narrow 50-degree viewing angle for long-range radiant intensity. This AEC-Q102 qualified component is optimized for high current pulse operation and offers low thermal resistance to manage heat in compact enclosures.

Why Choose This Part

The part provides exceptional radiant intensity of 1250mW/sr at 1A due to its double-stack technology and integrated silicone lens. Its AEC-Q102 qualification and 8kV ESD protection ensure reliability in harsh automotive environments, while the 940nm wavelength minimizes visible red glow for discreet operation.

Applications

Driver Monitoring Systems (DMS)
High-intensity IR source for eye, face, and hand tracking within vehicle cabins for safety and fatigue monitoring.
Advanced Driver Assistance Systems (ADAS)
Exterior sensing for pedestrian detection or short-range environmental scanning in low-light conditions.
Biometric Authentication
Facial recognition and secure access control systems requiring high-efficiency IR illumination with reduced red glow.
Gesture Control
Providing reliable light sources for industrial or consumer HMI systems that detect hand movements.

Key Specifications

Type Infrared (IR)
Wavelength 950nm (935nm ~ 960nm)
Orientation Top View
Mounting Type Surface Mount
Viewing Angle 50deg
Package / Case 3-SMD, No Lead
Operating Temperature -40degC ~ 125degC (TA)
Voltage - Forward (Vf) (Typ) 2.75V
Current - DC Forward (If) (Max) 1.5A
Radiant Intensity (Ie) Min @ If 1250mW/sr @ 1A

Getting Started

When designing for high-current pulse operation up to 1.5A, ensure proper thermal management using metal-core PCBs (MCPCB) or thermal vias to leverage the low thermal resistance of the OSLON Black package. Consult OSRAM Application Note 'Thermal management of OSRAM OSLON Black' for footprint and soldering recommendations.

Also Consider

VSMY98545ADS Vishay Semiconductors - A high-power 850nm IR emitter with AEC-Q101 qualification for automotive sensing requirements.