SMAJ54 データシートの表示（PDF） - MDE Semiconductor, Inc.
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SMAJ54 Datasheet PDF : 3 Pages
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MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel: 760-564-8656 • Fax: 760-564-2414
1-800-831-4881 Email: sales@mdesemicondutor.com Web: www.mdesemiconductor.com
RATING AND CHARACTERISTIC CURVES SMAJ SERIES
Fig. 1 - Peak Pulse Power Rating
100
Non-repetitive Pulse
Wavetorm shown in Fig.3
TA = 25°C
10
SMAJ85A –
SMAJ170
1
SMAJ5.0 –
SMAJ78
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
0.1
0.1µs
1.0µs
10µs
100µs
td - Pulse Width (sec.)
1.0ms
10ms
Fig.3 - Pulse Waveform
150
tr = 10µsec.
TJ = 25°C
Pulse Width(td)is defined
Peak Value
as the point where the
IPPM
peak current decays to
100
50% of IPPM
Half Value- IPPM
2
50
10/1000µsec.Waveform
as defined by R.E.A.
td
0
0
1.0
2.0
t - Time(ms)
3.0 4.0
4.0
Fig. 5 - Typ.Transient Thermal Impedance
1000
100
10
100
87.5
75
62.5
50
37.5
25
12.5
0
0
Fig.2 - Pulse Derating Curve
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
25
50
75
100
125
150
175
200
TA - Ambient Temperature (°C)
10000
1000
100
Fig.4 - Typical Junction Capacitance
TJ = 25°C
f = 1.0MHZ
Vsig = 50mVp-p
Measured at
Stand-Off
Voltage, VWM
Uni-Directional
Bi-Directional
10
1000
10
1
100 200
VWM - Reverse Stand-Off Voltage (V)
200
100
50
TJ = TJ max,
8.3ms Single Half Sine-Wave
(JEDEC Method)
1
0
0.2
0.4
0.6
0.8
1
1.2
tp-Pulse Duration (sec)
10
0
0.2
0.4
0.6
0.8
1
1.2
Number of Cycles at 60 Hz
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