P4SMA SERIES
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR POWER 400 Watts
BREAK DOWN VOLTAGE
FEATURES
• For surface mounted applications in order to optimize board space.
• Low profile package
• Built-in strain relief
• Glass passivated junction
• Low inductance
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
• High temperature soldering : 260°C /10 seconds at terminals
• In compliance with EU RoHS 2002/95/EC directives
.047(1.20)
6.8 to 250 Volts
MECHANICAL DATA
• Case: JEDEC DO-214AC,Molded plastic over passivated junction.
• Terminals: Solder plated,solderable per MIL-STD-750, Method 2026
• Polarity: Color band denotes positive end (cathode)
• Standard Packaging:12mm tape (EIA-481)
• Weight: 0.0023 ounce, 0.0679 gram
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types P4SMA6.8 thru types P4SMA250.
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
R ating
Peak Pulse Power D i ssi pati on on T
A
= 25
O
C (Notes 1,2,5, Fi g.1)
Peak Forward Surge C urrent per Fi g.5 (Note 3)
Peak Pulse C urrent on 10/1000
µ
s waveform(Note 1)Fi g.2
Typi cal Thermal Resi stance Juncti on to Ai r (NOTE 2)
Operati ng Juncti on and Storage Temperature Range
Symbol
P
P P M
I
F S M
I
P P M
R
θ
JA
T
J
,T
S T G
Value
400
40
see Table 1
70
-55 to +150
Uni ts
Watts
Amps
Amps
O
C/W
O
C
NOTES:
1. Non-repetitive current pulse, per Fig.3 and derated above T
A
= 25
O
C per Fig. 2.
2. Mounted on 5.0mm
2
copper pads to each terminal.
3. 8.3ms single half sine-wave, or equivalent square wave, duty cycle = 4 pulses per minutes maximum.
4. Lead temperature at 75
O
C = T
L
.
5. Peak pulse power waveform is 10/1000µS.
STAD-SEP.12.2008
PAGE . 1
P4SMA SERIES
P
PPM
,PEAK PULSE FORWARD,KW
100
Non-Repetitve
Pulse Wavefom
Shown in Figure.3
O
T
A
= 25 C
100
PEAK PULSE POWER (P
PP
) OR CURRENT (I
PP
)
DERATING IN PERCENTAGE %
75
10
50
1.0
25
Mounted on 5.0mm
Copper Land Areas
0.1
0.1
1.0
10
100
1000
10000
0
0
25
50
75
100
125
150
175
200
td,PULSE WIDTH, micro sec
T
A
,AMBIENT TEMPERATURE, C
O
Fig.1 PEAK PULSE POWER RATING CURVE
Fig.2 DERATING CURVE
I
PPM
,PEAK PULSE CURRENT,%
150
tf = 10usec
T
A
= 25 C
Pulse Width (td) is Defined
as the Point where the Peak
Current Decayst to 50% of Ipp
O
10,000
Tj= 25 C
f= 1.0MHZ
Vsig = 50mVp -p
O
100
Peak Value
Ippm
C
J
,CAPACIT
ANCE,p F
Ha lf Va lue -Ip p
2
1,000
Mea sured a t
Ze ro Bia s
50
10/1000u se c Wa ve fo rm
a s De fine d b ye R.E.A.
e -kt
td
0
0
1.0
2.0
3.0
4.0
100
Me a sure d a t
Sta nd -Off
Volta ge (V
RWM
)
T,TIME,ms
Fig.3 PULSE WAVEFORM
10
1.0
2.0
5.0 10
20
50 100
200
I
FSM
,PEAK FORWARD SURGE CURRENT,
AMPERES
50
T
J
= T
J
ma x
8.3ms Sing le Ha lf SinepWave
JEDEC M e tho d
V(
RWM
), REVERSE STAND-OFF VOLTAGE, VOLTS
40
30
Fig.4 TYPICAL JUNCTION CAPACITANCE
20
10
0
1
2
4
10
20
40
100
NUMBER OF CYCLES AT 60Hz
Fig.5 MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
STAD-SEP.12.2008
PAGE . 4
P4SMA SERIES
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information
T/R - 7.5K per 13" plastic Reel
T/R - 1.8Kper 7” plastic Reel
LEGAL STATEMENT
Copyright PanJit International, Inc 2009
The information presented in this document is believed to be accurate and reliable. The specifications and information herein
are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit
does not convey any license under its patent rights or rights of others.
STAD-SEP.12.2008
PAGE . 5
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