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PDF 1.5KE220CA Data sheet ( Hoja de datos )

Número de pieza 1.5KE220CA
Descripción 1500 Watt Mosorb Zener Transient Voltage Suppressors
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1.5KE6.8CA Series
1500 Watt MosorbZener
Transient Voltage Suppressors
Bidirectional*
Mosorb devices are designed to protect voltage sensitive
components from high voltage, high–energy transients. They have
excellent clamping capability, high surge capability, low zener
impedance and fast response time. These devices are
ON Semiconductor’s exclusive, cost-effective, highly reliable
Surmetic axial leaded package and are ideally-suited for use in
communication systems, numerical controls, process controls,
medical equipment, business machines, power supplies and many
other industrial/ consumer applications, to protect CMOS, MOS and
Bipolar integrated circuits.
Specification Features:
Working Peak Reverse Voltage Range – 5.8 V to 214 V
Peak Power – 1500 Watts @ 1 ms
ESD Rating of Class 3 (>16 KV) per Human Body Model
Maximum Clamp Voltage @ Peak Pulse Current
Low Leakage < 5 µA above 10 V
UL 497B for Isolated Loop Circuit Protection
Response Time is typically < 1 ns
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
230°C, 1/16from the case for 10 seconds
POLARITY: Cathode band does not imply polarity
MOUNTING POSITION: Any
MAXIMUM RATINGS
Rating
Symbol Value
Unit
Peak Power Dissipation (Note 1.)
@ TL 25°C
PPK
1500
Watts
Steady State Power Dissipation
@ TL 75°C, Lead Length = 3/8
Derated above TL = 75°C
PD 5.0 Watts
20 mW/°C
Thermal Resistance, Junction–to–Lead
RqJL
20 °C/W
Operating and Storage
Temperature Range
TJ, Tstg
– 65 to
+175
°C
1. Nonrepetitive current pulse per Figure 4 and derated above TA = 25°C per
Figure 2.
*Please see 1N6267A to 1N6306A (1.5KE6.8A – 1.5KE250A)
for Unidirectional Devices
http://onsemi.com
AXIAL LEAD
CASE 41A
PLASTIC
L
1N6
xxxCA
1.5KE
xxxCA
YYWW
L = Assembly Location
1N6xxxCA = JEDEC Device Code
1.5KExxxCA = ON Device Code
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
Packaging
Shipping
1.5KExxCA
Axial Lead 500 Units/Box
1.5KExxCARL4 Axial Lead 1500/Tape & Reel
© Semiconductor Components Industries, LLC, 2002
February, 2002 – Rev. 2
1
Publication Order Number:
1.5KE6.8CA/D

1 page




1.5KE220CA pdf
1.5KE6.8CA Series
1
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.03
0.02
0.01
0.1 0.2
PULSE WIDTH
10 ms
1 ms
100 µs
10 µs
0.5 1 2
5 10 20
D, DUTY CYCLE (%)
50 100
Figure 6. Typical Derating Factor for Duty Cycle
APPLICATION NOTES
RESPONSE TIME
In most applications, the transient suppressor device is
placed in parallel with the equipment or component to be
protected. In this situation, there is a time delay associated
with the capacitance of the device and an overshoot
condition associated with the inductance of the device and
the inductance of the connection method. The capacitance
effect is of minor importance in the parallel protection
scheme because it only produces a time delay in the
transition from the operating voltage to the clamp voltage as
shown in Figure 7.
The inductive effects in the device are due to actual
turn-on time (time required for the device to go from zero
current to full current) and lead inductance. This inductive
effect produces an overshoot in the voltage across the
equipment or component being protected as shown in
Figure 8. Minimizing this overshoot is very important in the
application, since the main purpose for adding a transient
suppressor is to clamp voltage spikes. These devices have
excellent response time, typically in the picosecond range
and negligible inductance. However, external inductive
effects could produce unacceptable overshoot. Proper
circuit layout, minimum lead lengths and placing the
suppressor device as close as possible to the equipment or
components to be protected will minimize this overshoot.
Some input impedance represented by Zin is essential to
prevent overstress of the protection device. This impedance
should be as high as possible, without restricting the circuit
operation.
DUTY CYCLE DERATING
The data of Figure 1 applies for non-repetitive conditions
and at a lead temperature of 25°C. If the duty cycle increases,
the peak power must be reduced as indicated by the curves
of Figure 6. Average power must be derated as the lead or
ambient temperature rises above 25°C. The average power
derating curve normally given on data sheets may be
normalized and used for this purpose.
At first glance the derating curves of Figure 6 appear to be
in error as the 10 ms pulse has a higher derating factor than
the 10 µs pulse. However, when the derating factor for a
given pulse of Figure 6 is multiplied by the peak power value
of Figure 1 for the same pulse, the results follow the
expected trend.
http://onsemi.com
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