P4KE550/51 Vishay, P4KE550/51 Datasheet - Page 3

• Manufacturer Part Number: P4KE550/51
• Description: TVS Diodes - Transient Voltage Suppressors 400W 550V 10% Unidir
• Manufacturer: Vishay

Specifications of P4KE550/51

• Polarity: Unidirectional
• Clamping Voltage: 660 V
• Operating Voltage: 495 V
• Package / Case: DO-204AL
• Breakdown Voltage: 550 V
• Peak Pulse Power Dissipation: 300 W
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 55 C
• Dimensions: 2.7 (Max) mm W x 5.2 (Max) mm L
• Lead Free Status / Rohs Status: No

PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
APPLICATION NOTES
Document Number: 88366
Revision: 20-Oct-08
• Respect Thermal Resistance (PCB Layout) - as the
• Select minimum breakdown voltage, so you get
• Clamping
temperature coefficient also contributes to the
clamping voltage
acceptable power dissipation and PCB tie point
temperature. Devices with higher breakdown
voltage will have a shorter conduction time and will
dissipate less power
resistance - design approximation is 7 V per
100 mA slope
100
150
50
0
0
t
d
t
r
= 10 µs
Half Value -
I
PPM
Peak Value
I
voltage
PPM
Figure 3. Pulse Waveform
1.0
t - Time (ms)
I
PP
2
[e-mail], [e-mail], [e-mail]
is
2.0
For technical questions within your region, please contact one of the following:
10/1000 µs Waveform
as defined by R.E.A.
T
Pulse Width (t
is defined as the Point
where the Peak Current
Decays to 50 % of I
influenced
J
= 25 °C
3.0
d
)
PPM
by
4.0
0.107 (2.7)
0.080 (2.0)
0.034 (0.86)
0.028 (0.71)
internal
DIA.
DIA.
DO-204AL (DO-41)
• Keep temperature of TVS lower than TOPSwitch
• Maximum current is determined by the maximum
• Minimum breakdown voltage can be customized for
• TOPSwitch is a registered trademark of Power
0.205 (5.2)
0.160 (4.1)
1.0 (25.4)
1.0 (25.4)
as a recommendation
T
supplier for different clamping voltage/current
arrangements
other applications. Contact supplier
Integrations, Inc.
MIN.
MIN.
J
1.00
0.75
0.50
0.25
0
and can be higher than 300 mA. Contact
0
L = 0.375" (9.5 mm)
Lead Lengths
Vishay General Semiconductor
25
Figure 4. Pulse Derating Curve
50
T
L
P4KE530 & P4KE550
- Lead Temperature (°C)
75
100
125
60 Hz
Resistive or
Inductive Load
150
175
www.vishay.com
200
®
3