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#91 Test FB1 with MH2029-601Y alternative

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opened 3 years ago by Michael Schloh von Bennewitz · 1 comments
Michael Schloh von Bennewitz commented 3 years ago

Test FB1 with MH2029-601Y alternative

Problem environment

After changing from the BLM15AG121SN1D (402) to the BLM21BB121SN1D (805) ferrite bead, it may be beneficial to use a similar MH2029-601Y instead.

Steps to reproduce

  1. Examine the schematic
  2. Hand solder on a prototype
  3. Measure runtime stability

Expected result

No runtime disadvantage is observed when using either the BLM21BB121SN1D or MH2029-601Y in place of FB1.

Actual result

Information is lacking about replacing with an MH2029-601Y alternative.

Severity level

This is low priority because the choice of ferrite bead is insignificant.

# Test FB1 with MH2029-601Y alternative ## Problem environment After changing from the BLM15AG121SN1D (402) to the BLM21BB121SN1D (805) ferrite bead, it may be beneficial to use a similar MH2029-601Y instead. ## Steps to reproduce 1. Examine the schematic 1. Hand solder on a prototype 1. Measure runtime stability ## Expected result No runtime disadvantage is observed when using either the BLM21BB121SN1D or MH2029-601Y in place of FB1. ## Actual result Information is lacking about replacing with an MH2029-601Y alternative. ## Severity level This is **low priority** because the choice of ferrite bead is insignificant.
Michael Schloh von Bennewitz added the
enhancement
label 3 years ago
Michael Schloh von Bennewitz added the
question
label 3 years ago
Michael Schloh von Bennewitz added this to the Final etching and assembly milestone 3 years ago
Michael Schloh von Bennewitz commented 3 years ago
Owner

A suitable 0805 package variant (BLM21BB121SN1D) was tested and found to work equally well. The suggested MH2029-601Y does not offer the same resistance and is therefore disqualified from tests.

A suitable 0805 package variant (BLM21BB121SN1D) was tested and found to work equally well. The suggested MH2029-601Y does not offer the same resistance and is therefore disqualified from tests.
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