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SFH4249 - ams OSRAM

Description: INFRARED EMITTER, 950 NM, PLCC; Peak Wavelength:950nm; Angle of Half Intensity:50°; Diode Case Style:PLCC; Radiant Intensity (Ie):50mW/Sr; Rise Time:12ns; Fall Time tf:12ns; Forward Current If(AV):100mA; Forward Voltage VF Max:1.8V; RoHS Compliant: Yes

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SFH4249 - ams OSRAM - PCB symbol
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PCB Footprints
SFH4249 - ams OSRAM PCB footprint - Other - Other - SFH4249-3
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3D Models
SFH4249 - ams OSRAM - 3D model - Other - SFH4249-3
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SFH4249 Details

  • Manufacturer Part Number:

    SFH4249

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • HTS Code:

    8541.40.20.00

  • Manufacturer:

    ams OSRAM Group

  • YTEOL:

    7

  • Additional Feature:

    AEC-Q101

  • Configuration:

    SINGLE

  • Forward Current-Max:

    0.1 A

  • Forward Voltage-Max:

    1.8 V

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Functions:

    1

  • Operating Temperature-Max:

    100 °C

  • Operating Temperature-Min:

    -40 °C

  • Optoelectronic Device Type:

    INFRARED LED

  • Output Power-Nom:

    65 mW

  • Packing Method:

    TR, 7 INCH

  • Peak Wavelength:

    950 nm

  • Reverse Voltage-Max:

    5 V

  • Shape:

    ROUND

  • Size:

    2.575 mm

  • Spectral Bandwidth:

    42 m

  • Surface Mount:

    YES

  • Viewing Angle:

    50 deg

SFH4249 Frequently Asked Questions (FAQs)

  • The recommended PCB layout for SFH 4249 involves keeping the photodiode away from the PCB edge, using a ground plane underneath the device, and minimizing the distance between the photodiode and the amplifier input to reduce noise and parasitic capacitance.
  • To handle the high capacitance of SFH 4249, use a transimpedance amplifier with a low input impedance, minimize the PCB trace length, and consider adding a capacitor in parallel with the photodiode to reduce the effective capacitance.
  • The optimal operating temperature range for SFH 4249 is between -40°C and 85°C. However, the device can tolerate temperatures up to 100°C for short periods. It's essential to consider temperature compensation and thermal management in the system design.
  • To ensure proper biasing, connect the anode to a low-impedance voltage source (e.g., 5V) and the cathode to a transimpedance amplifier input. The recommended bias voltage is between 1.5V and 5V, depending on the application and required sensitivity.
  • The recommended soldering profile for SFH 4249 involves a peak temperature of 260°C, with a maximum time above 220°C of 30 seconds. It's essential to follow the manufacturer's recommended soldering profile to prevent damage to the device.

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SFH4249 Overview

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Infrared LED, 2.575mm, 1-Element, 950nm