參數(shù)資料
型號(hào)： V27ZA2
廠(chǎng)商： Harris Corporation
元件分類(lèi)： 壓敏電阻
英文描述： Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation
中文描述： 徑向引線(xiàn)金屬氧化物壓敏電阻的低中壓運(yùn)行
文件頁(yè)數(shù)： 5/14頁(yè)
文件大?。?/td> 1405K
代理商： V27ZA2
71
www.littelfuse.com
2
V
P
Varistor Products
Low to Medum Voltage, Radial Lead
ZA 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
specifications 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
80
90
100
110
120
130
140
150
AMBIENT TEMPERATURE (
o
C)
P
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
100
90
50
10
O
1
T
T
1
T
2
TIME
P
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 3. CLAMPING VOLTAGE FOR V8ZA05(P) - V68ZA05(P)
600
500
400
300
200
190
80
40
30
20
M
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
8 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
10
V68ZA05(P)
V56ZA05(P)
V39ZA05(P)
V22ZA05(P)
V12ZA05(P)
V8ZA05(P)
10
-3
FIGURE 4. CLAMPING VOLTAGE FOR V82ZA05(P) - V33ZA05(P)
2000
1000
500
200
M
PEAK AMPERES (A)
0.01
0.1
1
10
100
1000
100
0.0001
0.001
V100ZA05P
V82ZA05P
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82 TO 330V
N(DC)
RATING
T
A
= -55
C TO 85
C
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
Transient V-I Characteristics Curves
Pb
RoHS
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參數(shù)描述
V27ZA20P 制造商:LITTELFUSE 制造商全稱(chēng):Littelfuse 功能描述:Radial Lead Varistors
V27ZA2P 功能描述:壓敏電阻 17V 500A 3000pF 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
V27ZA2PX2855 功能描述:RADIAL VARISTOR 10MM RoHS:是 類(lèi)別:過(guò)電壓，電流，溫度裝置 >> TVS - 變阻器，MOV 系列:ZA 標(biāo)準(zhǔn)包裝:3,000 系列:StandarD 變阻器電壓:18V 電流 - 浪涌:1kA 電路數(shù):1 最大交流電壓:11VAC 最大直流電壓:14VDC 能量:3.2J 封裝/外殼:圓盤(pán) 14mm 其它名稱(chēng):B72214S 110K151B72214S0110K151B72214S110K151
V27ZA4 功能描述:壓敏電阻 17V 1kA 7000pF 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
V27ZA4P 功能描述:壓敏電阻 17V 1kA 7000pF 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
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