SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Film Resistors: Coated Core and a Cut Helix
Most axial-leaded resistors are film resistors. A thin resistive film is put on an insulating core, and a helix is cut through it, turning the film into a long, narrow path; the length of that path sets the resistance. Carbon film resistors use a film of carbon and cover about 1 ohm to 10 megohms at 0.125–5 W. Metal film resistors are usually coated with nickel chromium, applied for example by sputtering in a vacuum; cut the same way, they reach tolerances of 0.5–2 % and temperature coefficients of about 50–100 ppm/K. The value is marked on the body with coloured bands, the electronic colour code.
Juu
Factory process
Maagizo
1
1
Coat the cores
Coat the cores
Deposit the resistive film on the insulating cores: carbon for carbon-film parts, nickel chromium (for example by sputtering) for metal-film parts.
Vifaa kwa hatua hii:
Kiini kihami cha kipingamizi1 as required
Mipako ya utando wa kaboni1 as required
Mipako ya utando wa nikeli-kromiamu1 as requiredZana zinazohitajika:
Chemba ya sputtering ya ombwe2
2
Cut the helix and fit leads
Cut the helix and fit leads
Cut a helix through the film (the longer and narrower the path, the higher the resistance) and fit end caps with axial leads.
Vifaa kwa hatua hii:
Vifuniko vya ncha vya kipingamizi vyenye miguu1 as requiredZana zinazohitajika:
Mashine ya kukata hesi ya kipingamizi3
3
Mark
Mark
Paint the colour bands that give the value and tolerance.
Vifaa kwa hatua hii:
Rangi ya kuweka alama za mikanda ya rangi1 as requiredVifaa
5- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
- 1 as requiredKishikilia Nafasi
Zana Zinazohitajika
2- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.