ADVANCED INFORMATION
P4KE530 AND P4KE550
T
RANS
Z
ORB
™ TRANSIENT VOLTAGE SUPPRESSOR
Steady State Power -
1Watt
DO-204AL
Reverse Voltage -
530, 550 Volts
FEATURES
♦
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
♦
Protects TOPSwitch
®
♦
Glass Passivated Junction
♦
High temperature soldering guaranteed:
250°C/10 seconds at terminals
♦
Exellent Clamping capability
♦
Available in unidirectional only
1.0 (25.4)
MIN.
0.107 (2.7)
0.080 (2.0)
DIA.
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 color 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
1.0 (25.4)
MIN.
0.034 (0.86)
0.028 (0.71)
DIA.
Dimensions are in inches and (millimeters)
Available in uni-directional only
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
P4KE530
P4KE550
UNITS
Steady state power dissipation
(NOTE 3)
Peak pulse power dissipation
(NOTE 1,2, FIG.1)
Minimum breakdown voltage at 100µA
Maximum clamping voltage at 300mA, 10/1000
µs
-
waveform
Stand-off voltage
Maximum DC reverse leakage current at V
WM
Typical temperature coefficient of V
(BR)
Typical capacitance
(NOTE 4)
Operating junction and storage temperature range
at 0V
at 200V
P
M(AV)
P
PPM
V
(BR)
Vc
V
WM
I
D
477
530
1.0
Minimum 300
550
660
495
5.0
650
75
45
-55 to +150
Watts
Watts
Volts
Volts
Volts
µA
mV°C
pF
°C
C
J
T
J
, T
STG
NOTES:
(1) Non-repetitive current pulse, per Fig.3 and derated above 25°C per - Fig. 2
(2) Peak pulse power waveform is 10/100µS
(3) Lead temperature at 75°C=T
L
(4) Measured at 1MHz
1/20/99
MAXIMUM RATINGS AND CHARACTERISTIC CURVES P4KE530 AND P4KE550
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
PEAK PULSE POWER (Ppp) or CURRENT (
IPPM
)
DERATING IN PERCENTAGE, %
100
FIG. 2 - PULSE DERATING CURVE
100
10
75
1.0
50
25
0.1
0.1
µ
s
1.0
µ
s
10
µ
s
100
µ
s
1.0ms
10ms
td, PULSE WIDTH, sec.
FIG. 3 - PULSE WAVEFORM
0
0
25
50
75
100
125
150
175
150
I
PPM,
PEAK PULSE CURRENT, %
PULSE WIDTH (td) is DEFINED
as the POINT WHERE the PEAK
CURRENT DECAYS
to 50% of I
PPM
T
A
, AMBIENT TEMPERATURE, °C
tr=10µsec.
100
PEAK VALUE
I
PPM
HALF VALUE - I
PPM
2
10,000
50
10/1000µsec. WAVEFORM
as DEFINED by R.E.A.
1,000
td
0
0
1.0
2.0
t, TIME, ms
3.0
4.0
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.
Industrial Control Electronics
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