Capacitor
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Transcript of Capacitor
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TOPIK KAPASITOR
CIRI-CIRI KAPASITOR
FUNGSI KAPASITOR
JENIS-JENIS KAPASITOR
BACAAN KOD WARNA
KAEDAH PENGUJIAN KAPASITOR
SAMBUNGAN LITAR KAPASITOR
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CIRI-CIRI KAPASITOR
Komponen elektrik yang dapat menyimpan tenaga elektrik dalam bentuk cas.
Terdiri daripada 2 plat yang dipisahkan antara satu sama lain dengan penebat yang dikenali sebagai dielektrik.
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FUNGSI KAPASITOR
Antara kegunaan dalam litar elektrik
dan elektronik ialah:
Litar penala frekuensi gelombang radio (tuner)
Litar penapis pada pembekal kuasa (noise filter)
Litar penghapus percikan api dlm sistem nyalaan enjin kereta
Litar “flash” kamera
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SIMBOL KAPASITOR
kapasitor mika & seramik
kapasitor boleh ubah
kapasitor elektrolitik
- +
i)
ii)
iii)
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JENIS-JENIS KAPASITOR
a) Kapasitor jenis elektrolitik (ada kekutuban)
- tantalum
- aluminium
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JENIS-JENIS KAPASITOR
b) Kapasitor jenis bukan elektrolitik (tiada kekutuban)
(i) film
(ii) mica
(iii) seramik
(iv) tantalum
(i) (ii) (iii) (iv)
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JENIS-JENIS KAPASITOR
c) Kapasitor jenis boleh ubah
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KOD WARNA KAPASITOR
SERAMIK & MULLARD C280
WARNA JALUR 1& 2 HAD TERIMA VOLTAN
Hitam 0 X 1 pF ± 20% -
Coklat 1 X 10 pF ± 1% -
Merah 2 X 100 pF ± 2% 250V
Oren 3 X 1000 pF ± 2.5% -
Kuning 4 X 10000 pF - 400V
Hijau 5 X 100000 pF ± 5% -
Biru 6 - - -
Ungu 7 - - -
Kelabu 8 - - -
Putih 9 - ± 10% -
PENDARAB
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KOD WARNA KAPASITOR
TANTALUM
WARNA VOLTAN JALUR 1& 2
Coklat - 0 X 10 µF
Merah - 1 X 100 µF
Oren 3.5V 2 -
Kuning 6.3V 3 -
Hijau 16V 4 -
Biru 20V 5 -
Ungu - 6 -
Kelabu 25V 7 X 0.01 µF
Putih 3V 8 X 0.1 µF
Hitam 10V 9 X 1 µF
Merah Jingga 35V - -
PENDARAB
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KOD WARNA KAPASITOR
1) Kapasitor Mullard C280
Jalur 1
Jalur 2
pendarabhad terima
voltan
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KOD WARNA KAPASITOR
coklat
Oren
Hijaukuning
merah
Contoh: Kemuatan = 13 X 10,000pF= 130,000 pF / 0.13µF
WARNA JALUR 1& 2 HAD TERIMA VOLTAN
Hitam 0 X 1 pF ± 20% -
Coklat 1 X 10 pF ± 1% -
Merah 2 X 100 pF ± 2% 250V
Oren 3 X 1000 pF ± 2.5% -
Kuning 4 X 10000 pF - 400V
Hijau 5 X 100000 pF ± 5% -
Biru 6 - - -
Ungu 7 - - -
Kelabu 8 - - -
Putih 9 - ± 10% -
PENDARAB
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KOD WARNA KAPASITOR
Jalur 1
Pendarab
Jalur 2
Had voltan
2) Kapasitor tantalum
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KOD WARNA KAPASITOR
kuning
merah
coklat
biru
Contoh:
Nilai sebenar = 3 0 X 100µµµµF
Had voltan = 20V
WARNA VOLTAN JALUR 1& 2
Coklat - 0 X 10 µF
Merah - 1 X 100 µF
Oren 3.5V 2 -
Kuning 6.3V 3 -
Hijau 16V 4 -
Biru 20V 5 -
Ungu - 6 -
Kelabu 25V 7 X 0.01 µF
Putih 3V 8 X 0.1 µF
Hitam 10V 9 X 1 µF
Merah Jingga 35V - -
PENDARAB
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KOD WARNA KAPASITOR
X X X XNo.
Pertama
No.
Kedua
Pendarab
Had terima
M=20%,
K=10%
J=5%X X X
Had
Voltan
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KOD WARNA KAPASITOR
1 0 4 K
150
Contoh:
104K = 10 000 pF dengan had terima ±10%Nilai sebenar = 10 000 pFVoltan kerja max = 150V
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HAD VOLTAN
Had voltan ialah nilai voltan maksima yang boleh dimuatkan cas.
Bagi kapasitor elektrolitik, kekutuban mestilah sama dengan yang asal.
Jika tiada voltan yang sama, gunakan voltan yang lebih tinggi (dalam pembaikan)
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CARA MENGUJI KAPASITOR
Kapasitor boleh diuji menggunakan:
Meter ohm
Meter RCL
Meter capacitance
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CARA MENGUJI KAPASITOR
1) Kapasitor elektrolitik
Keadaan Meter Ohm Meter RCL
Baik 0Ω → ∞ ada bacaan
Bocor (leakage) 5kΩ / 10kΩ tiada bacaan
Pintas 0Ω tiada bacaan
*
* Jarum meter akan bergerak dari 0 ke infiniti
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CARA MENGUJI KAPASITOR
2)Kapasitor mika & seramik
Keadaan Meter Ohm Meter RCL
Baik ∞ ada bacaan
Bocor (leakage) 200kΩ / 2kΩ tiada bacaan
Pintas 0Ω tiada bacaan
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CARA MENGUJI KAPASITOR
i) Pintaskan kapasitor
ii) Pada awalnya, jarum meter akan terus bergerak
ke bacaan 0 ohm kerana kapasitor mula mengecas.iii) Kemudian, jarum meter akan bergerak menuju ke
inifiniti perlahan-lahan menandakan kapasitor nyahcas.
iv) Apabila kapsitor nyahcas sepenuhnya, jarum meterakan berhenti pada bacaan infiniti.
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KAPASITOR SAMBUNGAN SIRI
= 100 (100)---------------
100 + 100
= 50pF
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µµ
µ
KAPASITOR SAMBUNGAN SELARI
= C1 + C2
= 2200µµµµF++++3300µµµµF=5500µµµµF