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SMAT70A_1 Datasheet (HTML) - Diodes Incorporated

Part No. SMAT70A_1
Description  400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
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Maker  DIODES [Diodes Incorporated]
Homepage  http://www.diodes.com
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DS30213 Rev. 7 - 2
1 of 3
SMAT70A/SMBT70A
www.diodes.com
ã Diodes Incorporated
SMAT70A/SMBT70A
400W, 600W SURFACE MOUNT TRANSIENT
VOLTAGE SUPPRESSOR
Maximum Ratings @ TA = 25°C unless otherwise specified
Characteristic
Symbol
SMAT70A
SMBT70A
Unit
Peak Pulse Power Dissipation
(Non repetitive current pulse derated above TA =25
°C)
PPK
400
600
W
Peak Forward Surge Current, 8.3ms Single Half Sine
Wave Superimposed on Rated Load (JEDEC Method)
(Note 2)
IFSM
40
100
A
Instantaneous Forward Voltage @ IPP = 35A
(Note 2)
VF
3.5
V
Operating and Storage Temperature Range
Tj,TSTG
-55 to +150
°C
Features
·
Case: SMA/SMB
·
Case Material: Molded Plastic. UL Flammability
Classification Rating 94V-0
·
Moisture Sensitivity: Level 1 per J-STD-020C
·
Terminals: Lead Free Plating (Matte Tin Finish).
Solderable per MIL-STD-202, Method 208
·
Polarity Indicator: Cathode Band
·
Marking: Date Code (See Page 3) and Marking Code (See
Page 1)
·
Ordering Information: See Page 3
·
Weight: SMA 0.064 grams
SMB 0.093 grams
·
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
·
Lead Free Finish/RoHS Complaint (Note 4)
Mechanical Data
A
B
C
D
G
H
E
J
Part Number
Reverse
Standoff
Voltage
Breakdown
Voltage
VBR @ IT
(Note 3)
Test
Current
Max.
Reverse
Leakage @
VRWM
Max.
Clamping
Voltage @
Ipp
Max. Peak
Pulse
Current
Ipp
Typical
Junction
Capacitance
(Note 3)
Typical
Voltage
Temp.
Variation
of VBR
Marking
Code
VRWM (V)
Min
(V)
Max
(V)
IT (mA)
IR (
mA)
VC (V)
(A)
(pF)
mV/
°C
SMAT70A
70
77.8
89.5
1.0
5.0
100
3.5
140
80
KEX
SMBT70A
70
77.8
89.5
1.0
5.0
100
5.3
290
80
NPX
Notes:
1. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.
2. VBR measured with IT current pulse = 300
ms.
3. f = 1MHz, VR = 0VDC.
4. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
Package
SMAT70A
SMBT70A
SMA
SMB
Dim
Min
Max
Min
Max
A
2.29
2.92
3.30
3.94
B
4.00
4.60
4.06
4.57
C
1.27
1.63
1.96
2.21
D
0.15
0.31
0.15
0.31
E
4.80
5.59
5.00
5.59
G
0.10
0.20
0.10
0.20
H
0.76
1.52
0.76
1.52
J
2.01
2.62
2.00
2.62
SMA, SMB
@TA = 25°C unless otherwise specified
Electrical Characteristics



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