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recommend a replacement for D1.
argher

argher

@copilot recommend a replacement for D1.
2y

copilot

Given that D1 in your project is an SMBJ5.0A, which is a transient voltage suppressor (TVS) diode from Littelfuse Inc. designed to protect electronic equipment against voltage spikes, I recommend the following replacement based on the project needs:
Recommended Replacement: 1.5KE5.0A
  • Manufacturer: STMicroelectronics or similar
  • MPN: 1.5KE5.0A
  • Description: This is also a transient voltage suppressor diode, designed to handle 1500 W peak pulse power dissipation for reliable transient voltage protection. It has a standoff voltage of 5.0 V, similar to the SMBJ5.0A, ensuring compatibility with your existing design.
  • Pins: 2 (1 - Cathode, named "K"; 2 - Anode, named "A")
  • Element Properties:
Why 1.5KE5.0A?
  • Power Dissipation: It can handle higher power spikes compared to SMBJ series, offering additional robustness to your design.
  • Package Type: The 1.5KE series usually come in a DO-201 package which is bigger than the SMB package of the SMBJ5.0A, thus easier to handle in terms of soldering and physical inspection.
  • Compatibility: With a similar working peak reverse voltage (5.0V), it ensures that the protection level remains consistent with the requirements of your Raspberry Pi PSU interface.
Things to Consider:
  • Board Space: Given the larger package size (DO-201), ensure your PCB layout has enough space for this replacement.
  • Mounting and Heat Dissipation: Verify whether the increased power dissipation capacity aligns with your thermal management strategy.
Please verify these parameters suit your project's specific needs before making a final decision. If your space or thermal management setups are constrained, you might need to consider alternatives or adjustments in your design.
2y
2
Q1
J4
J5
J6
J7
J3
J1
H3
H1
J2
H4
H2
D1
J9
D2
J10
R1
Resistance
2.2kΩ

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    PSU para raspberry

    PSU para raspberry thumbnail
    Interfaz entre una fuente ATX estándar y una tarjeta raspberry Pi 4 B.

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    Distributor

    Qty 1

    Digi-Key

    $3.09–$3.92

    LCSC

    $1.19–$2.58

    Mouser

    $1.35–$2.04

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