Lapad ng PCB trace para sa relay output: contact current, inrush at copper
I-size ang copper ng PCB relay output mula sa tunay na load current at duty cycle, tapos hiwalay na suriin ang contact rating, inrush o motor start, fuse, terminal, vias, voltage drop at local pad heating.
Mahahalagang punto
- •Gamitin ang continuous o RMS current para sa copper temperature.
- •Relay pads, terminals, fuse lands, shunts at vias ay karaniwang kailangan ng dagdag margin.
- •Motors, solenoids, lamps, heaters at capacitive loads ay kailangan ng inrush check.
- •Wide pours o 2 oz copper ay madalas mas mabuti malapit sa COM at NO/NC.
- •Buyers dapat humingi ng finished copper, contact current, load type, fuse, voltage drop, ambient at test condition.
Direktang panuntunan sa sukat
| Direktang panuntunan sa sukat | Daloy ng engineering | Checklist sa release | Karaniwang bitag sa relay output |
|---|---|---|---|
| Gamitin ang continuous o RMS current para sa copper temperature. | Kalkulahin mula sa continuous o RMS current, finished copper, layer, length, temperature rise at voltage drop; suriin ang pads, terminal, fuse at vias nang hiwalay. | Relay pads, terminals, fuse lands, shunts at vias ay karaniwang kailangan ng dagdag margin. | Gaano kalapad ang relay output PCB trace? |
| Relay pads, terminals, fuse lands, shunts at vias ay karaniwang kailangan ng dagdag margin. | Hindi. Ang PCB copper ay depende sa totoong path, temperature, voltage drop, copper thickness at local bottlenecks. | Motors, solenoids, lamps, heaters at capacitive loads ay kailangan ng inrush check. | Pwede bang contact rating ang gamitin? |
| Motors, solenoids, lamps, heaters at capacitive loads ay kailangan ng inrush check. | Oo para sa motors, solenoids, lamps, heaters, transformers, capacitors at mahahabang cable. | Wide pours o 2 oz copper ay madalas mas mabuti malapit sa COM at NO/NC. | Kailangan ba ang inrush check? |
| Buyers dapat humingi ng finished copper, contact current, load type, fuse, voltage drop, ambient at test condition. | Finished copper, relay part, load type, maximum continuous o RMS current, protection, terminal, via count, test ambient at allowed voltage drop. | Gamitin ang continuous o RMS current para sa copper temperature. | Ano ang dapat kumpirmahin? |
Daloy ng engineering
- I-size ang copper ng PCB relay output mula sa tunay na load current at duty cycle, tapos hiwalay na suriin ang contact rating, inrush o motor start, fuse, terminal, vias, voltage drop at local pad heating.
- Gamitin ang continuous o RMS current para sa copper temperature.
- Relay pads, terminals, fuse lands, shunts at vias ay karaniwang kailangan ng dagdag margin. Gaano kalapad ang relay output PCB trace?
- Motors, solenoids, lamps, heaters at capacitive loads ay kailangan ng inrush check. Kailangan ba ang inrush check?
- Wide pours o 2 oz copper ay madalas mas mabuti malapit sa COM at NO/NC.
- Buyers dapat humingi ng finished copper, contact current, load type, fuse, voltage drop, ambient at test condition.
Checklist sa release
- Gamitin ang continuous o RMS current para sa copper temperature.
- Relay pads, terminals, fuse lands, shunts at vias ay karaniwang kailangan ng dagdag margin.
- Motors, solenoids, lamps, heaters at capacitive loads ay kailangan ng inrush check.
- Wide pours o 2 oz copper ay madalas mas mabuti malapit sa COM at NO/NC.
- Buyers dapat humingi ng finished copper, contact current, load type, fuse, voltage drop, ambient at test condition.
- Finished copper, relay part, load type, maximum continuous o RMS current, protection, terminal, via count, test ambient at allowed voltage drop.
Karaniwang bitag sa relay output
Inirerekomendang internal na tools
FAQ ng relay output
Gaano kalapad ang relay output PCB trace?
Pwede bang contact rating ang gamitin?
Kailangan ba ang inrush check?
Ano ang dapat kumpirmahin?
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Mabilis na FAQ
Gaano kalapad ang relay output PCB trace?
Kalkulahin mula sa continuous o RMS current, finished copper, layer, length, temperature rise at voltage drop; suriin ang pads, terminal, fuse at vias nang hiwalay.
Pwede bang contact rating ang gamitin?
Hindi. Ang PCB copper ay depende sa totoong path, temperature, voltage drop, copper thickness at local bottlenecks.
Kailangan ba ang inrush check?
Oo para sa motors, solenoids, lamps, heaters, transformers, capacitors at mahahabang cable.
Ano ang dapat kumpirmahin?
Finished copper, relay part, load type, maximum continuous o RMS current, protection, terminal, via count, test ambient at allowed voltage drop.
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