Adding CAN Network with MCP2515
Thought for 52 sec
Automotive fuse candidates for the 12 V input
Recommendation
Table
| Part | Type | Mount | Package | Notes |
|---|---|---|---|---|
| ITV4030L0412 | Automotive fuse | SMD | FUSE-SMD_3P-L4.0-W3.0-B | Best match here if you want a PCB-mount SMD input protection part |
| 0251015.MRT1L | Automotive fuse | Through Hole | FUSE-TH_BD2.8-L7.1-P11.11-D0.64 | Good if through-hole is acceptable |
| 0297003.WXNV | Automotive fuse | Through Hole | FUSE-TH_L10.9-W3.8-P8.10 | Another through-hole automotive option |
| 0297005.WXNV | Automotive fuse | Through Hole | FUSE-TH_L10.9-W3.8 | Similar family, through-hole |
| 0297010.WXNV | Automotive fuse | Through Hole | FUSE-TH_0297010.WXNV | Higher-rated family member, through-hole |
- For your CAN node board, I’d start with ITV4030L0412 because it is the cleanest SMD board-entry fuse match from the library results.
- If you prefer a more traditional fuse format, 0251015.MRT1L is the strongest through-hole candidate returned.
- I did not get a clean automotive PTC result from the library search.
- The library returned automotive fuse families more reliably than resettable PTCs for this query.
If you want, I can next find:
- a reverse-polarity protection MOSFET/diode for the 12 V input, or
- narrow this to a specific fuse current target for the 39514-5004 input.
Thought for 51 sec
Automotive TVS options ahead of the regulator
Recommendation
Placement
Table
| Part | Package | Manufacturer | Why it stands out |
|---|---|---|---|
| SMCJ24A-Q | SMC | Bourns | Best balanced choice for the 12 V input ahead of IC1 |
| SM8S24A-Q | DO-218 | Bourns | Heavier-duty option if you want more surge margin at the 39514-5004 entry |
| SMBJ28A-Q | SMB | Bourns | Smaller package option if space matters more than surge robustness |
| SMBJ26A-Q | SMB | Bourns | Similar compact automotive option |
| SMCJ24AQ-13-F | SMC | Diodes | Reasonable alternative to the Bourns SMC part |
- Put the TVS directly behind the 39514-5004, from +12 V to GND, before the input path feeding IC1.
If you want, I can next find a matching reverse-polarity protection part for the same input path.
Find reverse protection
Smaller TVS options
Check regulator input
Review input path
