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參數(shù)資料
| 型號： | SM12AT1G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | TVS二極管 - 瞬態(tài)電壓抑制 |
| 英文描述： | 450 W, BIDIRECTIONAL, 2 ELEMENT, SILICON, TVS DIODE, TO-236 |
| 封裝： | LEAD FREE, PLASTIC, CASE 318-08, SOT-23, 3 PIN |
| 文件頁數(shù)： | 2/5頁 |
| 文件大小： | 61K |
| 代理商： | SM12AT1G |
SM12AT1
http://onsemi.com
2
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Peak Power Dissipation @ 20
Ppk
450
W
IEC 6100042 (ESD)
Air
Contact
±15
±8.0
kV
IEC 6100044 (EFT)
50
A
IEC 6100045 (Lightning)
12
A
Derate above 25
°C
Thermal Resistance JunctiontoAmbient
°PD°
RqJA
225
1.8
556
°mW°
mW/
°C
°C/W
Derate above 25
°C
Thermal Resistance JunctiontoAmbient
°PD°
RqJA
300
2.4
417
°mW
mW/
°C
°C/W
Junction and Storage Temperature Range
TJ, Tstg
55 to +150
°C
Lead Solder Temperature Maximum (10 Second Duration)
TL
260
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Nonrepetitive current pulse per Figure 3
2. FR5 = 1.0 x 0.75 x 0.62 in.
3. Alumina = 0.4 x 0.3 x 0.024 in., 99.5% alumina
*Other voltages may be available upon request
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted)
UNIDIRECTIONAL (Circuit tied to Pins 1 and 3 or 2 and 3)
Symbol
Parameter
IPP
Maximum Reverse Peak Pulse Current
VC
Clamping Voltage @ IPP
VRWM
Working Peak Reverse Voltage
IR
Maximum Reverse Leakage Current @ VRWM
VBR
Breakdown Voltage @ IT
IT
Test Current
QVBR
Maximum Temperature Coefficient of VBR
IF
Forward Current
VF
Forward Voltage @ IF
ZZT
Maximum Zener Impedance @ IZT
IZK
Reverse Current
ZZK
Maximum Zener Impedance @ IZK
UniDirectional TVS
IPP
IF
V
I
IR
IT
VRWM
VC VBR
VF
ELECTRICAL CHARACTERISTICS
Device
Marking
VRWM
IR @ VRWM
VBR, Breakdown Voltage
IT
VC @
IPP = 1 A
(Note 4)
Max IPP
(Note 4)
Typical
Capacitance
(Volts)
(pF)
(Volts)
(
mA)
Min
Max
mA
(Volts)
(Amps)
Pin 1 to 3
@ 0 V
SM12AT1
12N
12
1.0
13.3
15.75
1.0
19
18
120
4. 8
× 20 ms pulse waveform per Figure 3
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