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參數(shù)資料
| 型號： | BNP002-02 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 825K |
| 代理商： | BNP002-02 |
258
CG01-I
EMI LEADED FILTERS
EMI SUPPRESSION FILTERS
VARISTOR-CAPACITORS
DSS710 Series
The reason the 3-terminal structure provides excellent
high frequency characteristics.
Bypass capacitors should logically be able to remove
more noise as frequency increases. In actual fact, the
electrodes and lead wires of the capacitor have series
inductance as shown in Fig. 3, and this causes an LC
resonance when the frequency is between 1MHz and
50MHz. As a result, when the frequency is higher than
the self-resonance frequency, the noise suppression
capability of the bypass capacitor is drastically reduced
because the capacitor functions as inductor. To solve
this problem, the DSS series has one side of the capacitor
electrodes connected to two lead wires. This eliminates
the series inductance to the capacitor. Furthermore,
a ferrite bead is attached to each lead wire to form a
T-shaped filter, thus providing efficient noise suppression.
Appearance
Ferrite bead:
Absorbs high-frequency noise.
Varistor:
Bypasses high-voltage
surges to ground in order
to protect circuits.
Capacitor:
Bypasses high-frequency noise.
Symbol
223S
M
Conventional 2-Lead Capacitor
3-Lead Capacitor (DSS Series)
Fig. 3 Equivalent circuit
223S
M
3-TERMINAL STRUCTURE
APPLICATIONS
NOISE ABSORPTION EFFECT OF
VARISTOR-CAPACITOR
Waveform when a
Varistor-Capacitor is
not used (surge from
a noise simulator).
Varistor-Capacitor
is used to suppress
the surge
shown below
Waveform after the
noise passes through
a Varistor-Capacitor.
Protection of circuitry
is achieved.
The Varistor-Capacitor is capable of removing even
1200V surges and will withstand 2000V impulses.
SCALE:
200V/Div.
10NS/Div.
Systems
Lines to be connected to
Effects
Engine Controllers
Power lines, I/O for
low-frequency current
Protection of systems from excessive voltage. Prevents ignition noise,
lightning surges, etc. from causing malfunctions.
Automobile
Audio Equipment
Power lines, audio
output lines
Power lines, I/O lines for
low-frequency current
Protection of system from excessive voltage. Prevents ignition noise from
influencing audio current.
Protection of systems from excessive voltage. Prevents radiation and
conduction noise.
Computers
DC Motors
Power lines
Prevention of brush noise.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BNP002-02 | 制造商:Murata Manufacturing Co Ltd 功能描述:FILTER DC POWER |
| BNP002-020001 | 制造商:Murata Manufacturing Co Ltd 功能描述: |
| BNP002-03 | 功能描述:電磁干擾濾波珠子、扼流圈和陣列 3CKT 300V 10A EMI BL RoHS:否 制造商:AVX 阻抗: 最大直流電流:35 mA 最大直流電阻: 容差: 端接類型:SMD/SMT 電壓額定值:25 V 工作溫度范圍:- 25 C to + 85 C 封裝 / 箱體:0603 (1608 metric) |
| BNP002-03 | 制造商:Murata Manufacturing Co Ltd 功能描述:FILTER DC POWER |
| BNP002-04 | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:BLOCK Type EMIFIL BNP Series Specification |
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