SK055R Littelfuse Inc, SK055R Datasheet - Page 10

• Manufacturer Part Number: SK055R
• Description: SCR THYRISTOR, 55A, 1KV, TO-220AB
• Manufacturer: Littelfuse Inc

Specifications of SK055R

• Peak Repetitive Off-state Voltage, Vdrm: 1kV
• Gate Trigger Current Max, Igt: 0.04mA
• Current It Av: 55A
• On State Rms Current It(rms): 55A
• Peak Non Rep Surge Current Itsm 50hz: 550A
• Configuration: Thyristor
• Current Squared Time Rating: 1750
• Current, Forward: 55 A
• Current, Gate Trigger: 50 A
• Current, Reverse: 30 μA
• Current, Surge: 650 A
• Package Type: TO-220
• Primary Type: SCR
• Resistance, Thermal, Junction To Case: 0.5 °C/W
• Speed, Switching: Standard
• Temperature, Junction, Maximum: +125 °C
• Temperature, Operating: -40 to +125 °C
• Voltage, Forward: 1.8 V
• Voltage, Reverse: 1000 V
• Breakover Current Ibo Max: 650 A
• Rated Repetitive Off-state Voltage Vdrm: 1 KV
• Off-state Leakage Current @ Vdrm Idrm: 0.03 mA
• On-state Rms Current (it Rms): 55 A
• Forward Voltage Drop: 1.8 V
• Gate Trigger Voltage (vgt): 1.5 V
• Gate Trigger Current (igt): 40 mA
• Holding Current (ih Max): 60 mA
• Mounting Style: Through Hole
• Package / Case: TO-220
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SCRs
Figure E6.19 Instantaneous On-state Current versus On-state Voltage
Figure E6.20 Instantaneous On-state Current versus On-state Voltage
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(Typical) (6 A through 25 A)
(Typical) (35 A through 70 A)
200
180
160
140
120
100
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
0
0
Instantaneous On-state Voltage (v
T
C
6 A to 10 A Devices
Instantaneous On-state Voltage (v
= 25˚C
0.6
.6
T
C
= 25˚C
55 A Devices
0.8
12 A Devices
15 A to 20 A Devices
.8
65 A and 70 A Devices
1.0
1.0
25 A Devices
1.2
35 A to 40 A Devices
1.2
1 A Devices
T
T
1.4
) – Volts
) – Volts
1.4
1.6
1.6
E6 - 10
Figure E6.21 Normalized DC Gate-trigger Voltage versus
Figure E6.22 Typical Turn-on Time versus Gate-trigger Current
7
6
5
4
3
2
1
0
10
Case Temperature
1 A Devices
6 A to 12 A Devices
1.5
1.0
0.5
0
DC Gate Trigger Current (I
-40
20
Case Temperature (T
-15
30
40
+25
50 60
15 A to 35 A Devices
+65
Thyristor Product Catalog
GT
C
40 A to 70 A Devices
80
) – ˚C
) – mA
T
©2004 Littelfuse, Inc.
100
C
+105 +125
= 25˚C
Data Sheets
200