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817B

Specifications

SKU: 11203437

BUY 817B https://www.utsource.net/itm/p/11203437.html

Parameter Description Value
Part Number Component Identifier 817B
Type Device Type Optocoupler
Package Housing Style DIP-4
Input Current (IF) Forward Current through LED 10 mA (Max)
Input Voltage (VF) Forward Voltage across LED 1.2 V (Typical) at IF = 20 mA
Output Current (IC) Collector Current 50 mA (Max)
Collector-Emitter Voltage (VCE) Maximum Voltage between Collector and Emitter 70 V (Max)
Isolation Voltage (VIORM) Isolation Voltage between Input and Output 5000 Vrms (Min)
CTR (Current Transfer Ratio) Ratio of Output Current to Input Current 50% to 600% at IF = 5 mA, VCE = 5 V
Operating Temperature (Toper) Operating Temperature Range -40°C to +105°C
Storage Temperature (Tstg) Storage Temperature Range -65°C to +150°C
Rise Time (tr) Time for Output to Rise from 10% to 90% of Final Value 2 μs (Max)
Fall Time (tf) Time for Output to Fall from 90% to 10% of Initial Value 2 μs (Max)

Instructions for Use:

  1. Mounting:

    • Ensure the device is mounted on a PCB with proper clearance to avoid short circuits.
    • Follow the recommended soldering profile to prevent thermal damage.
  2. Power Supply:

    • Connect the input (LED side) to a suitable current-limited power supply.
    • Ensure the output (transistor side) is connected to a load that does not exceed the maximum collector current (IC).
  3. Signal Handling:

    • The optocoupler provides electrical isolation between the input and output. Use it to interface different voltage levels or to protect sensitive circuits.
    • Ensure the input signal is within the specified range to avoid damaging the LED.
  4. Temperature Management:

    • Operate the device within the specified temperature range to ensure reliable performance.
    • Provide adequate cooling if the device will be operating at high temperatures or high currents.
  5. Testing:

    • Before final assembly, test the optocoupler using a known good circuit to verify functionality.
    • Check the CTR to ensure it falls within the specified range.
  6. Storage:

    • Store the device in a dry, cool place away from direct sunlight and corrosive environments.
    • Handle with care to avoid mechanical damage.
(For reference only)

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