- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359312 > V18ZA40 (Littelfuse, Inc.) Varistor Products - Low to Medum Voltage, Radial Lead PDF資料下載
參數(shù)資料
| 型號： | V18ZA40 |
| 廠商： | Littelfuse, Inc. |
| 元件分類： | 壓敏電阻 |
| 英文描述： | Varistor Products - Low to Medum Voltage, Radial Lead |
| 中文描述： | 壓敏電阻器產(chǎn)品-低到Medum電壓，徑向引線 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 1405K |
| 代理商： | V18ZA40 |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| V18ZA40P | Varistor Products - Low to Medum Voltage, Radial Lead |
| V18ZA40 | Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation |
| V18ZA40X10 | Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation |
| V18ZS3 | Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation |
| V201HA32 | Varistor Products - High Energy Industrial |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| V18ZA40P | 功能描述:壓敏電阻 10V 2kA 22000pF 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 |
| V18ZA40P | 制造商:Littelfuse 功能描述:Metal Oxide Varistor (MOV) |
| V18ZA40PX10 | 功能描述:RADIAL VARISTOR 20MM RoHS:是 類別:過電壓，電流，溫度裝置 >> TVS - 變阻器，MOV 系列:ZA 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 |
| V18ZA40PX2855 | 功能描述:RADIAL VARISTOR 20MM RoHS:是 類別:過電壓，電流，溫度裝置 >> TVS - 變阻器，MOV 系列:ZA 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 |
| V18ZA40X10 | 制造商:HARRIS 制造商全稱:HARRIS 功能描述:Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。