Description
Features
n 400 WATT PEAK POWER PROTECTION
n EXCELLENT CLAMPING CAPABILITY
n FAST RESPONSE TIME
Mechanical Dimensions
n TYPICAL I
R
< 1
A ABOVE 10V
n GLASS PASSIVATED CHIP CONSTRUCTION
n MEETS UL SPECIFICATION 94V-0
Electrical Characteristics @ 25
O
C.
Maximum Ratings
Peak Power Dissipation...P
PK
T
P
= 1mS
(Note 5)
Steady State Power Dissipation...P
D
@ T
T
= 75
C
(Note 2)
Non-Repetitive Peak Forward Surge Current...I
FSM
@ Rated Load Conditions, 8.3 mS, Sine Wave, Single Phase
(Note 3)
Weight...G
RM
Soldering Requirements (Time & Temp)...S
T
@ 250
C
Operating & Storage Temperature Range...T
J
, T
STRG
SMAJ5.0...170
Data Sheet
5.0V to 170V SMD TRANSIENT
VOLTAGE SUPPRESSORS
SMAJ5.0 . . . 170
Units
Watts
Watts
Amps
Grams
......................................... 400 Min. ..........................................
............................................. 1 ...............................................
............................................. 4 0 ...............................................
............................................. 0.12 ...............................................
............................................. 10 Sec. ...........................................
......................................... -65 to 175 ..........................................
C
Page 10-36
Min. to
Solder
NOTES: 1. For Bi-Directional Applications, Use C or CA. Electrical Characteristics Apply in Both Directions.
2. Mounted on 8mm Copper Pads to Each Terminal.
3. 8.3 mS, Sine Wave, Single Phase Duty Cycle, @ 4 Pulses Per Minute Maximum.
4. V
BR
Measured After It Applies for 300 uS. I
T
= Square Wave Pulse or Equivalent.
5. Non-Repetitive Current Pulse. Per Fig. 3 and Derated Above T
A
= 25
C per Fig. 2.
Uni-Polar
Load
TVS
Device
TVS
Device
Load
Uni-Polar
Package
SMA
Data Sheet
5.0V to 170V SMD TRANSIENT
VOLTAGE SUPPRESSORS
Page 37
Ratings at
25 Deg. C ambient
temperature
unless otherwise
specified.
Single Phase Half
Wave, 60 HZ
Resistive or
Inductive Load.
For Capacitive
Load, Derate
Current by 20%.
SMAJ5.0 . . . 170
NOTES: 1. For Bi-Directional Applications, Use C or CA. Electrical Characteristics Apply in Both Directions.
2. Mounted on 8mm Copper Pads to Each Terminal.
3. 8.3 mS, Sine Wave, Single Phase Duty Cycle, @ 4 Pulses Per Minute Maximum.
4. V
BR
Measured After It Applies for 300 uS. I
T
= Square Wave Pulse or Equivalent.
5. Non-Repetitive Current Pulse. Per Fig. 3 and Derated Above T
A
= 25
C per Fig. 2.
Fig. 1 Pulse Rating Curve
Fig. 4 Typical Junction Capacitance
Breakdown Voltage (Volts)
pF
Fig. 2 Pulse Derating Curve
T
A
= Ambient Temperature (
C)
Peak Pulse Percentage
Fig. 5 Steady State Power Derating
T
L
= Terminal Temperature (
C)
Steady State Power (Watts)
Fig. 3 Pulse Waveform
Peak Pulse Current
Fig. 6 Maximum Non-Repetitive
Surge Current
Number of Cycles @ 60 Hz
Amps
Measured @
Zero Bias
t
r
= 10
s
Peak Value
I
RSM
Pulse Width is defined
as that point where the
Peak Current decays to
50% of I
RSM
8.3ms Single Half Sine Wave
JEDEC Method
T = Time ( ms)
Measured @
Standoff Voltage
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