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參數(shù)資料
| 型號(hào)： | V39RA16 |
| 廠商： | Littelfuse, Inc. |
| 英文描述： | DIODE ZENER SINGLE 350mW 33Vz 3.8mA-Izt 0.05 0.1uA-Ir 25 SOT-23 3K/REEL |
| 中文描述： | 壓敏電阻器產(chǎn)品-超薄 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | V39RA16 |
140
www.littelfuse.com
Varistor Products
RA Varistor Series
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second.The power so developed must be within the specifi-
cations shown on the Device Ratings and Specifications table for the
specific device. Furthermore, the operating values need to be derated
at high temperatures as shown in Figure 1. Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
80
70
60
50
40
30
20
10
0
-55
50
60
70
AMBIENT TEMPERATURE (
o
C)
80
90
100
110
120
130
140
150
P
100
90
50
10
O
1
T
T
1
T
2
TIME
P
Low Profile
O
1
= Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T
1
= Virtual Front time = 1.25 t
T
2
= Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20
μ
s Current Waveform:
8
μ
s = T
1
= Virtual Front Time
20
μ
s = T
2
= Virtual Time to Half Value
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| V39RA16X2749 | 功能描述:VARISTOR RA SERIES RoHS:是 類別:過(guò)電壓，電流，溫度裝置 >> TVS - 變阻器，MOV 系列:RA 產(chǎn)品培訓(xùn)模塊:Metal Oxide Varistors 標(biāo)準(zhǔn)包裝:1 系列:MLE 變阻器電壓:28V 電流 - 浪涌:- 電路數(shù):1 最大交流電壓:- 最大直流電壓:18VDC 能量:- 封裝/外殼:0805（2012 公制） 其它名稱:F3834DKR |
| V39RA8 | 功能描述:壓敏電阻 25V 250A 900pF RoHS:否 制造商:EPCOS 產(chǎn)品:MLV 電壓額定值 DC:22 V 電壓額定值 AC:17 V 鉗位電壓:50 V 直徑: 峰值浪涌電流:30 A 浪涌能量額定值:75 mJ 電容:74.2 pF 工作溫度范圍:- 55 C to + 125 C 安裝:SMD/SMT 封裝:Reel |
| V39RA8X2749 | 功能描述:VARISTOR RA SERIES RoHS:是 類別:過(guò)電壓，電流，溫度裝置 >> TVS - 變阻器，MOV 系列:RA 標(biāo)準(zhǔn)包裝:300 系列:RA 變阻器電壓:68V 電流 - 浪涌:1kA 電路數(shù):1 最大交流電壓:40VAC 最大直流電壓:56VDC 能量:13J 封裝/外殼:徑向，盒式 |
| V39Z0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| V39Z2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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