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| 1N5555 Datasheet, PDF (1/2 Pages) Microsemi Corporation – 1500 WATT UNIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR | |||
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DIGITRON SEMICONDUCTORS
1N5555-1N5558
1500 WATT UNIDIRECTIONAL
TRANSIENT VOLTAGE SUPPRESSOR
MAXIMUM RATINGS
1500 Watts for 10/1000µs with repetition rate of 0.01% or less* at lead temperature (TL) 25°C
Operating and Storage
Temperatures
-65 to +175°C
Thermal Resistance
50°C/W junction to lead at 0.375â from body or 110°C/W junction to ambient when
mounted on FR4 PC board with 4 mm2 copper pads and track width 1mm, length 25mm
DC Power Dissipation *
1 Watt @ TL = 25°C 3/8 from body
Forward Surge Current
200 Amps for 8.3 ms half-sine wave @ TA = 25°C
Solder Temperatures
260°C for 10 s (maximum)
* TVS devices are not typically used for dc power dissipation and are instead operated at or less than their rated standoff voltage (VWM) except for
transients that briefly drive the device into avalanche breakdown (VBR to VC region).
ELECTRICAL CHARACTERISTICS
Type
(note 1)
Minimum
Breakdown
Voltage
V(BR) @ I(BR)
Test
Current
I(BR)
Rated
Standoff
Voltage
VWM
Maximum
(RMS)
Reverse
Voltage
VWM(RMS)
Maximum
Standby
Current
ID @ VWM
Maximum
Peak
Reverse
Voltage
VC @ IPP
Maximum
Peak Pulse
Current
Maximum
Temperature
Coefficient
IPP
αV(BR)
V
mA
V
V
µA
V
A
%/°C
1N5555
33.0
1.0
30.5
21.5
5
47.5
32
+.093
1N5556
43.7
1.0
40.3
28.5
5
63.5
24
+.094
1N5557
54.0
1.0
49.0
34.5
5
78.5
19
+.096
1N5558
191.0
1.0
175
124.0
5
265.0
5.7
+.100
Note 1: A TVS is normally selected according to the rated âStandoff Voltageâ VWM that should be equal to or greater than the dc or continuous peak
operating voltage level.
SYMBOLS AND DEFINITIONS
VWM
Standoff Voltage: Applied Reverse Voltage to assure a nonconductive condition
V(BR)
Breakdown Voltage: This is the Breakdown Voltage the device will exhibit at 25°C
Maximum Clamping Voltage: The maximum peak voltage appearing across the TVS when subjected to the peak pulse
VC
current in a one millisecond time interval. The peak pulse voltage is the combination of voltage rise due to both the
series resistance and thermal rise and positive temperature coefficient (αV(BR))
IPP
Peak Pulse Current: The peak current during the impulse
PPP
Peak Pulse Power: The pulse power as determined by the product of VC and IPP
ID
Standby Current: The current at the standoff voltage (VWM)
I(BR)
Breakdown Current: The current used for measuring breakdown voltage (V(BR))
144 Market Street
Kenilworth NJ 07033 USA
phone +1.908.245-7200
fax +1.908.245-0555
sales@digitroncorp.com
www.digitroncorp.com
Rev. 20120906
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