PSMAJ400(C)A
Green
400W SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
Features Mechanical Data
400W Peak Pulse Power Dissipation Case: SMA
Unidirectional and Bidirectional Versions Available Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Excellent Clamping Capability
Moisture Sensitivity: Level 1 per J-STD-020
Fast Response Time
Terminals: Lead Free Plating (Matte Tin Finish). Solderable per
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
MIL-STD-202, Method 208
Halogen and Antimony Free. Green Device (Note 3)
Polarity Indicator: Cathode Band (Note: Bi-directional devices
have no polarity indicator.)
Weight: 0.064 grams (approximate)
SMA
Bottom View
Top View
Ordering Information (Note 4)
Part Number Case Packaging
PSMAJ400(C)A-13 SMA 5000/Tape & Reel
Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See
PSMAJ400(C)A
Thermal Characteristics
Characteristic Symbol Value Unit
Operating Temperature Range T -55 to +150 C
J
Storage Temperature Range T -55 to +175 C
STG
Electrical Characteristics (@T = +25C, unless otherwise specified.)
A
Breakdown Max. Peak Pulse
Reverse
Part Number
Test Max. Reverse Max. Clamping
Voltage Current
Standoff Marking Code
Add C For
Current Leakage @ V Voltage @ I
RWM pp
Voltage V @ I (Note 9)
Bidirectional BR T I
pp
(Note 8)
Min (V) Max (V) (A) BI- UNI-
V (V) I(mA) I (A) V (V)
RWM T R C
PSMAJ400(C)A 342 380 420 1.0 5.0 548.0 0.73 400C 400A
Notes: 8. Suffix C denotes Bi-directional device.
9. V measured with I current pulse = 300s
BR T
100 100
T = +25C
J
Non repetitive
75
pulse waveform
shown in Fig. 3
10
50
1.0
25
10 X 1000 Waveform
as defined by REA
0 0.1
0 25 50 75 100 125 150 175 200 1,000 10,000
0.1 1.0 10 100
T , AMBIENT TEMPERATURE (C)
t PULSE WIDTH (s)
A
p
Figure 1 Pulse Derating Curve
Figure 2 Pulse Rating Curve
60
50
40
30
20
10
0
1 2 5 20 100
10 50
t, TIME (ms)
NUMBER OF CYCLES AT 60Hz
Figure 3 Pulse Waveform
Figure 4 Maximum Non-Repetitive Surge Current
2 of 4
November 2012
PSMAJ400(C)A
Diodes Incorporated
www.diodes.com
Document number: DS35914 Rev. 3 - 2
ADVANCE INFORMATION
PEAK PULSE DERATING IN % OF
I , PEAK PULSE CURRENT (%I )
Ppp
PEAK POWER OR CURRENT
P , PEAK PULSE POWER (kW)
I, PEAK FORWARD SURGE CURRENT (A) PK
FSM