參數(shù)資料
型號(hào): MBRM140T3
廠商: MOTOROLA INC
元件分類(lèi): 二極管(射頻、小信號(hào)、開(kāi)關(guān)、功率)
英文描述: 1 A, 40 V, SILICON, SIGNAL DIODE
文件頁(yè)數(shù): 3/4頁(yè)
文件大?。?/td> 138K
代理商: MBRM140T3
MBRM140T3
3
Rectifier Device Data
Ipk/Io = 5
Figure 5. Current Derating
Figure 6. Forward Power Dissipation
TL, LEAD TEMPERATURE (°C)
IO, AVERAGE FORWARD CURRENT (AMPS)
0.2
0
1.0
0.6
0.5
0.3
0.1
0
1.0
,A
VERAGE
FOR
W
ARD
CURRENT
(AMPS)
I O
0.4
0.8
1.2
1.6
0.4
P
FO
,A
VERAGE
POWER
DISSIP
A
TION
(W
A
TTS)
SQUARE
WAVE
dc
Ipk/Io = p
Ipk/Io = 10
Ipk/Io = 20
0.6
1.4
0.2
0.7
0.8
0.9
45
75
25
1.8
1.2
1.0
0.8
0.2
0
55
115
105
1.4
125
1.6
Ipk/Io = 20
Ipk/Io = 10
Ipk/Io = 5
Ipk/Io = p
SQUARE WAVE
dc
0.6
0.4
FREQ = 20 kHz
35
65
85
95
Figure 7. Capacitance
Figure 8. Typical Operating Temperature Derating*
Figure 9. Thermal Response Junction to Lead
30
0
VR, REVERSE VOLTAGE (VOLTS)
1000
100
10
VR, DC REVERSE VOLTAGE (VOLTS)
15
40
0
115
95
85
75
100
0.1
0.00001
T, TIME (s)
1.0
0.1
0.01
C,
CAP
ACIT
ANCE
(pF)
T
R
15
5.0
10
20
25
20
25
5.0
10
105
125
0.0001
0.001
0.01
1.0
10
,DERA
TED
OPERA
TING
TEMPERA
TURE
(
C)
J
°
0.001
,TRANSIENT
THERMAL
RESIST
ANCE
(NORMALIZED)
(T)
* Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any re-
verse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating
TJ may be calculated from the equation:
TJ = TJmax – r(t)(Pf + Pr) where
r(t) = thermal impedance under given conditions,
Pf = forward power dissipation, and
Pr = reverse power dissipation
This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax – r(t)Pr,
where r(t) = Rthja. For other power applications further calculations must be performed.
Rtja = 33.72°C/W
51
°C/W
83.53
°C/W
96
°C/W
Rtjl(t) = Rtjl*r(t)
50%
20%
10%
5.0%
2.0%
1.0%
TJ = 25°C
40
35
30
35
69
°C/W
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