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参数资料
| 型号： | SK025L56TP |
| 元件分类： | 晶闸管 |
| 英文描述： | 25 A, 1000 V, SCR, TO-220AB |
| 封装： | ROHS COMPLIANT, PLASTIC, TO-220L, 3 PIN |
| 文件页数： | 5/9页 |
| 文件大小： | 972K |
| 代理商： | SK025L56TP |
273
Revised: November 1, 2010 05:04 PM
2010 Littelfuse, Inc
Teccor brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
20 / 25 Amp Standard SCRs
Sxx20x & Sxx25x Series
Figure 9: Maximum Allowable Ambient Temperature vs. Average On-State Current
0
20
40
60
80
100
120
0.0
0.5
1.01.5
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Sxx25L
Sxx25N
Sxx25R
Sxx20L
Average On-State Current [I
T(AVE)] - Amps
Maximum
All
ow
able
Ambient
Temper
at
ur
e(T
A)
-
C
Note: xx = voltage
Figure 10: Peak Capacitor Discharge Current
Figure 11: Peak Capacitor Discharge Current Derating
1000
10
100
0.5
1.010.0
50.0
Sxx20L
Sxx25L
Sxx25R
Sxx25N
Pulse Current Duration (t
W) - ms
Peak
Disc
har
ge
Cu
rr
ent
(I
TM
)-
Amps
I
TRM
t
W
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0255075100
125150
Case Temperature (T
C) - C
No
rm
aliz
ed
P
eak
Cu
rr
en
t
10
100
1000
110100
1000
Sxx25L
Sxx25R
Sxx25N
Sxx20L
Peak
Sur
ge
(Non-r
epetitiv
e)On-stat
e
Cu
rr
ent
(I
TSM
)–
Amps
Surge Current Duration -- Full Cycles
Figure 12: Surge Peak On-State Current vs. Number of Cycles
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
T(RMS)]: Maximum Rated
Value at Specified Case Temperature
Notes:
1. Gate control may be lost during and immediately
following surge current interval.
2. Overload may not be repeated until junction
temperature has returned to steady-state
rated value.
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