DIODES SMAT70A, SMBT70A Datasheet
Features
400, 600W Peak Pulse Power Dissipation
·
70V Standoff Voltage
·
100V Maximum Clamping Voltage -
·
A requirement of many -48V Backplane
Telecom Applications
Glass Passivated Die Construction
·
Fast Response Time: Typically less than 1 ps
·
Plastic Material - UL Flammability
·
Classification Rating 94V-0
NEW PRODUCT
Mechanical Data
Case: SMA, SMB Transfer Molded Epoxy
·
Terminals: Solderable per MIL-STD-202,
·
Method 208
Polarity Indicator: Cathode Band
·
· Marking: Date Code (See Sheet 3) and Marking
Code (See Sheet 1)
· Weight: SMA 0.064 grams
· Ordering Information: Sheet 3
SMB 0.093 grams
SMAT70A/SMBT70A
400W, 600W SURFACE MOUNT TRANSIENT
VOLTAGE SUPPRESSOR
SMA, SMB
B
A
J
H
G
E
SMAT70A SMBT70A
Package SMA SMB
Dim Min Max Min Max
2.29 2.92 3.30 3.94
A
4.00 4.60 4.06 4.57
B
1.27 1.63 1.96 2.21
C
0.15 0.31 0.15 0.31
D
4.80 5.59 5.00 5.59
E
0.10 0.20 0.10 0.20
G
0.76 1.52 0.76 1.52
H
2.01 2.62 2.00 2.62
J
C
D
Maximum Ratings
Peak Pulse Power Dissipation
(Non repetitive current pulse derated above T
Peak Forward Surge Current, 8.3ms Single Half Sine
Wave Superimposed on Rated Load (JEDEC Method)
(Note 2)
Instantaneous Forward Voltage @ IPP= 35A
(Note 2)
Operating and Storage Temperature Range
Electrical Characteristics
Reverse
Standoff
Part Number
SMAT70A
SMBT70A
Notes: 1. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.
2. V
3. f = 1MHz, V
Voltage
V
RWM
measured with ITcurrent pulse = 300ms.
BR
@ TA= 25°C unless otherwise specified
Characteristic Symbol SMAT70A SMBT70A Unit
P
I
FSM
V
T
j,TSTG
PK
F
Max.
Clamping
Voltage @
I
pp
V
(V)
C
=25°C)
A
@TA= 25°C unless otherwise specified
Breakdown
Voltage
V
@ I
BR
(Note 3)
Min
(V)
Max
(V)
70 77.8 89.5 1.0 5.0 100 3.5 55 80 KEX
70 77.8 89.5 1.0 5.0 100 5.3 80 80 NPX
= 0VDC.
R
(V)
T
Test
Current
IT(mA)
Max.
Reverse
Leakage @
V
RWM
(mA)
I
R
400 600 W
40 100 A
-55 to +150 °C
Max. Peak
Pulse
Current
I
pp
(A) (pF)
3.5 V
Typical
Junction
Capacitance
(Note 4)
Typical
Voltage
Temp.
Variation
of V
BR
mV/°C
Marking
Code
DS30213 Rev. D-2 1 of 3 SMAT70A/SMBT70A
g
100
g
100
g
NEW PRODUCT
10
75
50
25
PEAK POWER OR CURRENT
PEAK PULSE DERATING IN % OF
0
10 X 1000 Waveform
as defined by REA
0 25 50 75 100 125 150 175 200
SMBT70A
°
Non Repetitive
Pulse Waveform
Shown in Fig. 3
T = 25 Cj°
T , AMBIENT TEMPERATURE ( C)
A
. 1 Pulse DeratingCurve
Fi
1.0
d
P , PEAK PULSE POWER (kW)
0.1
0.1 1.0
SMAT70A
10 100
t PULSE WIDTH ( s)
p
Fi
. 2 Pulse RatingCurve
t = 10 srµ
100
Peak Value I
pp
Half Value I /2
50
Ppp
I , PEAK PULSE CURRENT (%I )
t
p
0
10 X 1000 Waveform
as defined by R.E.A.
012
1000 10000
µ
pp
3
t, TIME (ms)
. 3 Pulse Waveform
Fi
DS30213 Rev. D-2 2 of 3 SMAT70A/SMBT70A
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