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PDF 1.5KE20A Datasheet ( Hoja de datos )

Número de pieza 1.5KE20A
Descripción (1.5KE Series) Zener Transient Voltage Suppressors
Fabricantes ON Semiconductor 
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1.5KE20A Hoja de datos, Descripción, Manual
1N6267A Series
1500 Watt Mosorbt Zener
Transient Voltage
Suppressors
Unidirectional*
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
Surmetict 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.
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 mA Above 10 V
UL 497B for Isolated Loop Circuit Protection
Response Time is Typically < 1 ns
Pb−Free Packages are Available
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, 1/16 in from the case for 10 seconds
POLARITY: Cathode indicated by polarity band
MOUNTING POSITION: Any
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2007
February, 2007 − Rev. 8
1
http://onsemi.com
Cathode
Anode
AXIAL LEAD
CASE 41A
PLASTIC
MARKING DIAGRAM
A
1.5KE
xxxA
1N6
xxxA
YYWWG
G
A = Assembly Location
1.5KExxxA = ON Device Code
1N6xxxA
= JEDEC Device Code
YY = Year
WW = Work Week
= (See Table on Page 3)
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping
1.5KExxxA
Axial Lead 500 Units/Box
1.5KExxxAG
Axial Lead
(Pb−Free)
500 Units/Box
1.5KExxxARL4 Axial Lead 1500/Tape & Reel
1.5KExxxARL4G
1N6xxxA
1N6xxxAG
Axial Lead
(Pb−Free)
Axial Lead
Axial Lead
(Pb−Free)
1500/Tape & Reel
500 Units/Box
500 Units/Box
1N6xxxARL4
Axial Lead 1500/Tape & Reel
1N6xxxARL4G Axial Lead 1500/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Preferred devices are recommended choices for future use
and best overall value.
Publication Order Number:
1N6267A/D
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1.5KE20A pdf
1N6267A Series
1N6373, ICTE-5, MPTE-5,
through
1N6389, ICTE-45, C, MPTE-45, C
1000
500
TL = 25°C
tP = 10 ms
200
VBR(NOM) = 6.8 to 13 V
20 V
24 V 43 V
100
50
20
10
5
1000
500
TL = 25°C
tP = 10 ms
200
100
50
20
10
5
1.5KE6.8CA
through
1.5KE200CA
VBR(NOM) = 6.8 to 13 V
20 V
24 V
43 V
75 V
180 V
120 V
2
1
0.3 0.5 0.7 1
2 3 5 7 10
20 30
DVBR, INSTANTANEOUS INCREASE IN VBR ABOVE VBR(NOM) (VOLTS)
2
1
0.3 0.5 0.7 1
2 3 5 7 10
20 30
DVBR, INSTANTANEOUS INCREASE IN VBR ABOVE VBR(NOM) (VOLTS)
Figure 6. Dynamic Impedance
1
0.7
0.5
0.3
0.2
PULSE WIDTH
0.1 10 ms
0.07
0.05 1 ms
0.03
0.02 100 ms
0.01
0.1 0.2
0.5 1 2
10 ms
5 10 20
50 100
D, DUTY CYCLE (%)
Figure 7. 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 8.
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 9. 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 7. Average power must be derated as the lead or
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