RS-485 vs CAN: Choosing a Field Bus
RS-485 is a physical layer; CAN adds arbitration and error handling. Distance, node count and determinism decide which one fits.
Read articleManufacturer catalog
Review searchable product records associated with rohm semiconductor, then confirm the exact MPN, sourcing path and commercial conditions through quotation. Manufacturer naming is a catalog field and does not state an authorized distribution relationship.
1SR154-400TE25 - ROHM, SMA(DO-214AC)
1SS355VMTE-17 - ROHM, SOD-323F
1SS380VMTE-17 - ROHM, SOD-323FL
1SS390TE61 - ROHM, SOD-523
1SS400CST2RA - ROHM, VMN2
1SS400SMFHT2R - ROHM, SOD-523
1SS400SMT2R - ROHM, SOD-523
2SA1036KT146R - ROHM, TO-236-3(SOT-23-3)
2SA1037AKT146R - ROHM, TO-236-3(SOT-23-3)
2SA1576AT106R - ROHM, SC-70(SOT-323)
2SA1576UBTLR - ROHM, UMT3F
2SA1774EBTLR - ROHM, EMT3F(SOT-416FL)
2SA2029T2LQ - ROHM, SOT-723
2SA2030T2L - ROHM, SOT-723
2SAR523EBTL - ROHM, SOT-416
2SAR543RTL - ROHM, SC-96
2SAR553P5T100 - ROHM, SOT-89
2SB1197KT146R - ROHM, SC-59-3
2SB1198KT146R - ROHM, TO-236-3(SOT-23-3)
2SC2411KT146Q - ROHM, TO-236-3(SOT-23-3)
2SC2412KT146R - ROHM, SOT-346/SC-59
2SC4061KT146N - ROHM, SC-59-3
2SC4081T106R - ROHM, SC-70(SOT-323)
2SC4081U3T106R - ROHM, UMT-3
Supply boundary
Product records help identify a manufacturer part number and technical family. A listed part may be fulfilled from Chip-seek warehouse-held stock or a reviewed sourcing channel. Source, quantity, packaging, date code, MOQ, price and lead time are confirmed before an order is accepted.
From the desk
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
RS-485 is a physical layer; CAN adds arbitration and error handling. Distance, node count and determinism decide which one fits.
Read article
The buck input capacitor carries pulsed current. Size RMS, ripple and DC-bias derating before choosing a part.
Read article
A PPTC is selected at the hottest ambient, not at 25 C. Hold current, trip time and voltage drop are what decide the part.
Read article
Two numbers decide it: voltage difference times current. Below 1 W an LDO is simpler and quieter; above it the heat has nowhere to go.
Read article
A TVS is chosen by four numbers in a specific order. Standoff above the rail, clamp below the IC limit, enough peak current, and capacitance that...
Read article
Both keep data without power. Byte writes versus sector erase, 1M versus 100k cycles, and the workload that decides which one belongs in the design.
Read article
Small Rg means fast edges and ringing; large Rg means clean edges and heat. The split diode path, starting values, and how to measure the loss.
Read article
A crystal needs a circuit; an oscillator is a part. Accuracy classes, startup, jitter, what changes on the board, and when a resonator is enough.
Read article