smbt70a Diodes, Inc., smbt70a Datasheet

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smbt70a

Manufacturer Part Number
smbt70a
Description
400w, 600w Surface Mount Transient Voltage Suppressor
Manufacturer
Diodes, Inc.
Datasheet

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Mechanical Data
Features
Maximum Ratings
Electrical Characteristics
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
Instantaneous Forward Voltage @ I
Operating and Storage Temperature Range
Notes:
DS30213 Rev. 8 - 2
Part Number
SMAT70A
SMBT70A
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 Compliant (Note 4)
Qualified to AEC-Q101 Standards for High Reliability
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 and Date Information: See Pages 1 and 2
Ordering Information: See Page 2
Weight: SMA 0.064 grams
1. Measured with 8.3ms single half sine-wave. Duty cycle = 4 pulses per minute maximum.
2. V
3. f = 1MHz, V
4. RoHS revision 13.2.2003. Glass and high temperature solder exemptions applied, see EU Directive Annex Notes 5 and 7.
SMB 0.093 grams
BR
measured with I
Standoff
V
Reverse
Voltage
RWM
R
70
70
= 0VDC.
Characteristic
(V)
T
current pulse = 300μs.
@T
Breakdown
77.8
77.8
Min
(V)
PP
V
Voltage
(Note 3)
BR
A
= 35A (Note 2)
= 25°C unless otherwise specified
@ I
Max
89.5
89.5
(V)
T
A
@T
= 25° C)
A
Current
= 25°C unless otherwise specified
I
T
Test
(mA)
1.0
1.0
400W, 600W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
(Note 2)
Leakage @
www.diodes.com
Reverse
I
V
R
Max.
5.0
5.0
RWM
(μA)
1 of 3
Symbol
T
j
I
, T
P
FSM
V
PK
F
STG
Voltage @
Clamping
V
Max.
100
100
C
I
pp
(V)
Package
SMAT70A/SMBT70A
Dim
G
A
B
C
D
E
H
J
J
A
Pulse Current
SMAT70A
Max. Peak
400
40
H
3.5
5.3
(A)
2.29
4.00
1.27
0.15
4.80
0.10
0.76
2.01
I
Min
SMAT70A
pp
SMA, SMB
SMA
-55 to +150
E
B
Max
2.92
4.60
1.63
0.31
5.59
0.20
1.52
2.62
G
3.5
Capacitance
Junction
(Note 3)
Typical
SMBT70A
3.30
4.06
1.96
0.15
5.00
0.10
0.76
2.00
Min
(pF)
SMBT70A
140
290
600
100
SMB
C
D
Max
3.94
4.57
2.21
0.31
5.59
0.20
1.52
2.62
Variation
SMAT70A/SMBT70A
Voltage
Typical
Temp.
of V
mV/°C
80
80
© Diodes Incorporated
BR
Unit
°C
W
A
V
Marking
Code
KEX
NPX

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smbt70a Summary of contents

Page 1

... 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 SMAT70A SMBT70A 400 600 40 100 3.5 -55 to +150 Typical Typical Max. Peak Voltage Junction Pulse Current Temp. Capacitance Variation I pp (Note (A) (pF) mV/°C 3.5 140 80 5.3 290 80 SMAT70A/SMBT70A © Diodes Incorporated Unit °C Marking Code BR KEX NPX ...

Page 2

... Y = Last digit of year ex: 2 for 2002 WW = Week code www.diodes.com ° Non Repetitive Pulse Waveform Shown in Fig. 3 SMBT70A SMAT70A 1.0 10 100 1,000 10,000 100 125 150 T , AMBIENT TEMPERATURE (°C) A Shipping 5000/Tape & Reel 3000/Tape & Reel SMAT70A/SMBT70A © Diodes Incorporated ...

Page 3

... Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. DS30213 Rev IMPORTANT NOTICE LIFE SUPPORT www.diodes.com SMAT70A/SMBT70A © Diodes Incorporated ...

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