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| 型號(hào)： | INTRO_TO_TRANSISTOR |
| 文件頁(yè)數(shù)： | 11/13頁(yè) |
| 文件大?。?/td> | 404K |
| 代理商： | INTRO_TO_TRANSISTOR |
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9
I
Temperature Derating in Safe Operating Area
Flange (case) temperature is typically described as 25°C, but it must be derated subject to the operating
temperature.
This derating curve is determined by manufacturing conditions of devices, materials used etc. and in case of a
silicon transistor, breakdown voltage and DC Current Gain are significantly deteriorated in the temperature
range of 260°C to 360°C.
Hence, the collector current must be derated by using the derating curve in Fig.2 where the breakdown point is
set at 260°C.
0
100
50
0
50
100
150
200
250
300
SBlmtngaea
P migae
Case Temp Tc (°C)
C
D
Tc=25°C
SBimigae
Pclmtngaea
Collector-Emitter Voltage V
CE
(V)
C
Fig.1 Safe Operating Area
Derating coefficient is obtained from temperature in Fig.2 and it must be applied to the current value of the safe
operating area in order to obtain the derated current.
I
Accessories
$
Sanken Transistors do not include accessories. Accessories may be attached at a cost if requested.
$
Sanken transistor case is a standard size, and can be used with any generally sold accessories.
3.75
5.0
±0.1
R0.5
19.4
±0.1
1
±
7
+0.1
–
0
3.2
7.0
R0.5
24.0
2
±
±0.1
1
+0.1
–
0
+0.2
–
0
+
–
0
2–3.2
R0.5
+0.1
–
0
39.0
±0.1
2
±
1
±
24.38
±0.1
6
±
2.5
±0.2
1.5
±0.2
3
±
3
±
Insulater: Mica, with a thickness of 0.06mm, +0.045 –0.005 allowance
Insulation Bush for MT-25 (TO220)
Type Name:Mold(10)Mica Type Name:Mold(14)Mica Type Name:Mold(9)Mica
Reliability
Fig.2 Derating Curve of Safe Operating Area
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