P4KE530 and P4KE550
T
RANS
Z
ORB
®
Transient Voltage Suppressor
DO-204AL (DO-41 Plastic)
uct
rod
w P
Features
Ne
Steady State Power
1W
Reverse Voltage
530, 550V
1.0 (25.4)
MIN.
0.107 (2.7)
0.080 (2.0)
DIA.
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
• Protects power IC controllers such as TOPSwitch
®
• Glass passivated junction
• High temperature soldering guaranteed:
250°C/10 seconds at terminals
• Excellent clamping capability
• Available in unidirectional only
0.205 (5.2)
0.160 (4.1)
Mechanical Data
Case:
JEDEC DO-204AL molded plastic body over
passivated junction
Terminals:
Axial leads, solderable per MIL-STD-750,
Method 2026
Polarity:
The band denotes the cathode, which is
positive with respect to the anode under normal
TVS operation
Mounting Position:
Any
Weight:
0.012 ounce, 0.3 gram
Packaging Codes/Options:
1/1K per Bulk Box
4/5.5K per 13” Reel (52mm tape)
A
O
1.0 (25.4)
MIN.
0.034 (0.86)
0.028 (0.71)
DIA.
Dimensions are in inches and (millimeters)
Maximum Ratings and Thermal Characteristics
T = 25 C unless otherwise noted.
Parameter
Steady state power dissipation
(Note 3)
Peak pulse power dissipation
(Note 1, 2, Fig. 1)
Stand-off voltage
Typical thermal resistance junction-to-lead
Typical thermal resistance junction-to-ambient
Operating junction and storage temperature range
Symbol
P
M(AV)
P
PPM
V
WM
R
ΘJL
R
ΘJA
T
J
, T
STG
P4KE530
1.0
Minimum 300
477
27
75
–55 to +150
495
P4KE550
Unit
W
W
V
°C/W
°C/W
°C
Electrical Characteristics
Parameter
Minimum breakdown voltage at 100µA
T
A
= 25
O
C unless otherwise noted.
Symbol
V
(BR)
Vc
I
D
P4KE530
530
660
5.0
650
P4KE550
550
Unit
V
V
µA
mV°C
pF
Max. clamping voltage at 400mA, 10/1000µs
-
waveform
Maximum DC reverse leakage current at V
WM
Typical temperature coefficient of V
(BR)
Typical capacitance
(Note 4)
at 0V
at 200V
C
J
90
7.5
Notes:
(1)
(2)
(3)
(4)
Non repetitive current pulse per Fig.3 and derated above 25
O
C per Fig. 2
Peak pulse power waveform is 10/1000µs
Lead temperature at 75
O
C = T
L
Measured at 1MH
Z
6/16/00
P4KE530 and P4KE550
T
RANS
Z
ORB
®
Transient Voltage Suppressor
Ratings and
Characteristic Curves
(T
100
A
= 25°C unless otherwise noted)
Fig. 1 – Peak Pulse Power Rating Curve
P
PPM
– Peak Pulse Power (kW)
Non-repetitive Pulse
Waveform shown in Fig. 3
T
A
= 25°C
10
Fig. 2 – Pulse Derating Curve
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage, %
100
75
50
1
25
0.1
0.1µs
1.0µs
10µs
100µs
1.0ms
10ms
0
0
25
50
75
100
125
150
175
td – Pulse Width (sec.)
T
A
– Ambient Temperature (°C)
Fig. 3 – Pulse Waveform
150
I
PPM
– Peak Pulse Current, % I
RSM
tr = 10µsec.
Peak Value
I
PPM
Pulse Width (td)
is defined as the point
where the peak current
decays to 50% of I
PPM
100
Half Value – I
PP
2
50
10/1000µsec. Waveform
as defined by R.E.A.
td
0
0
1.0
2.0
3.0
4.0
t – Time (ms)
Application Notes
•
Respect Thermal Resistance (PCB Layout) – as the temperature coefficient also contributes to the clamping voltage.
•
Select minimum breakdown voltage, so you get acceptable power dissipation and PCB tie point temperature.
Devices with higher breakdown voltage will have a shorter conduction time and will dissipate less power.
•
Clamping voltage is influenced by internal resistance – design approximation is 7V per 100mA slope.
•
Keep temperature of TVS lower than TOPSwitch
®
as a recommendation.
•
Maximum current is determined by the maximum T
J
and can be higher than 300mA.
Contact supplier for different clamping voltage / current arrangements.
•
Minimum breakdown voltage can be customized for other applications. Contact supplier.
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