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HE721A1210 - LITTELFUSE

Description: SPNO Reed Relay, 12V dc

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PCB Footprints
HE721A1210 - LITTELFUSE PCB footprint - Other - Other - HE721A1210-3
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3D Models
HE721A1210 - LITTELFUSE  - 3D model - Other - HE721A1210-3
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HE721A1210 Details

  • Manufacturer Part Number:

    HE721A1210

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8536.49.00.50

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    0

  • Additional Feature:

    COIL SUPPRESSION DIODE

  • Body Breadth:

    7.22 mm

  • Body Height:

    5.5 mm

  • Body Length or Diameter:

    19.05 mm

  • Coil Current(DC)-Max:

    0.012 A

  • Coil Operate Voltage(DC):

    8 V

  • Coil Power:

    144 mW

  • Coil Release Voltage(DC):

    1 V

  • Coil Resistance:

    1000 Ω

  • Coil Voltage(DC)-Max:

    31 V

  • Coil Voltage-Nom:

    12 V

  • Coil/Input Supply Type:

    DC

  • Contact Current(DC)-Max:

    0.5 A

  • Contact (DC) Max Rating R Load:

    0.5A@200VDC

  • Contact Resistance:

    150 mΩ

  • Contact Voltage(DC)-Max:

    200 V

  • Contact/Output Supply Type:

    DC

  • Input Switching Control Type:

    Random

  • Insulation Resistance:

    10000000000 Ω

  • Mounting Feature:

    THROUGH HOLE-STRAIGHT

  • Number of Terminals:

    8

  • Operate Time:

    1 ms

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Packing Method:

    BULK

  • Physical Dimension:

    19.05mm x 7.22mm x 5.5mm

  • Reference Standard:

    CUL; UL

  • Relay Action:

    MOMENTARY

  • Relay Form:

    1 FORM A

  • Relay Function:

    SPST

  • Relay Type:

    DRY REED RELAY

  • Release Time:

    1 ms

  • Sealing:

    HERMETICALLY SEALED

  • Surface Mount:

    NO

  • Terminal Length:

    0.002999745999491999 inch

  • Termination Type:

    SOLDER

HE721A1210 Frequently Asked Questions (FAQs)

  • A good PCB layout for the HE721A1210 involves keeping the input and output traces separate, using a solid ground plane, and minimizing the length of the input and output traces to reduce electromagnetic interference (EMI).
  • To ensure proper soldering, use a soldering iron with a temperature of 250°C to 260°C, and apply a small amount of solder paste to the pads. Use a soldering technique that minimizes the risk of overheating the component.
  • The HE721A1210 has an operating temperature range of -40°C to 125°C, but it's recommended to derate the component's power handling at high temperatures to ensure reliability.
  • Yes, the HE721A1210 is designed to withstand vibrations up to 10G, but it's recommended to secure the component to the PCB using a suitable adhesive or mechanical fastening to prevent damage.
  • To troubleshoot issues with the HE721A1210, check the input and output voltages, ensure proper PCB layout and soldering, and verify that the component is not overheating. Use an oscilloscope to analyze the input and output waveforms.

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HE721A1210 Overview

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