Mosorb devices are designed to protect voltage sensitive components from high volt-
age, high energy transients. They have excellent clamping capability, high surge capabili-
ty, low zener impedance and fast response time. These devices are Motorola’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:
•
Standard Voltage Range — 6.2 to 250 V
•
Peak Power — 1500 Watts @ 1 ms
•
Maximum Clamp Voltage @ Peak Pulse Current
•
Low Leakage < 5
µA
Above 10 V
•
UL Recognition
•
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
POLARITY:
Cathode indicated by polarity band. When operated in zener mode, will be
positive with respect to anode
MOUNTING POSITION:
Any
WAFER FAB LOCATION:
Phoenix, Arizona
ASSEMBLY/TEST LOCATION:
Guadalajara, Mexico
MAXIMUM RATINGS
Rating
Peak Power Dissipation (1)
@ TL
≤
25°C
Steady State Power Dissipation
@ TL
≤
75°C, Lead Length = 3/8″
Derated above TL = 75°C
Forward Surge Current (2)
@ TA = 25°C
Operating and Storage Temperature Range
Lead temperature not less than 1/16″ from the case for 10 seconds: 230°C
NOTES: 1. Nonrepetitive current pulse per Figure 5 and derated above TA = 25°C per Figure 2.
NOTES:
2. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
CASE 41A
PLASTIC
Symbol
PPK
PD
Value
1500
5
50
Unit
Watts
Watts
mW/°C
Amps
°C
IFSM
TJ, Tstg
200
– 65 to +175
Devices listed in bold, italic are Motorola preferred devices.
Motorola TVS/Zener Device Data
500 Watt Peak Power Data Sheet
4-1
*ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted) VF# = 3.5 V Max, IF** = 100 A
Maximum
Reverse
Voltage
@ IRSM
Maximum
(Clamping Temperature
Voltage)
Coefficient
VRSM
of VBR
(Volts)
(%/°C)
Breakdown Voltage
VBR
{{
Volts
Device
1.5KE6.8A
1.5KE7.5A
1.5KE8.2A
1.5KE9.1A
1.5KE10A
1.5KE11A
1.5KE12A
1.5KE13A
1.5KE15A
1.5KE16A
1.5KE18A
1.5KE20A
Min
Nom
Max
JEDEC
Device
@ IT
(mA)
Working
Peak
Reverse
R
Voltage
VRWM***
(Volts)
Maximum
Reverse
Leakage
@ VRWM
IR (µA)
Maximum
Reverse
Surge
S
Current
IRSM
{
(Amps)
1N6267A
1N6268A
1N6269A
1N6270A
1N6271A
1N6272A
1N6273A
1N6274A
6.45
7.13
7.79
8.65
9.5
10.5
11.4
12.4
6.8
7.5
8.2
9.1
10
11
12
13
7.14
7.88
8.61
9.55
10.5
11.6
12.6
13.7
10
10
10
1
1
1
1
1
5.8
6.4
7.02
7.78
8.55
9.4
10.2
11.1
1000
500
200
50
10
5
5
5
143
132
124
112
103
96
90
82
10.5
11.3
12.1
13.4
14.5
15.6
16.7
18.2
0.057
0.061
0.065
0.068
0.073
0.075
0.078
0.081
1N6275A
1N6276A
1N6277A
1N6278A
1N6279A
1N6280A
1N6281A
1N6282A
14.3
15.2
17.1
19
20.9
22.8
25.7
28.5
31.4
34.2
37.1
40.9
44.7
48.5
53.2
58.9
64.6
71.3
77.9
86.5
95
105
114
124
143
152
162
171
190
209
237
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
110
120
130
150
160
170
180
200
220
250
15.8
16.8
18.9
21
23.1
25.2
28.4
31.5
34.7
37.8
41
45.2
49.4
53.6
58.8
65.1
71.4
78.8
86.1
95.5
105
116
126
137
158
168
179
189
210
231
263
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
12.8
13.6
15.3
17.1
18.8
20.5
23.1
25.6
28.2
30.8
33.3
36.8
40.2
43.6
47.8
53
58.1
64.1
70.1
77.8
85.5
94
102
111
128
136
145
154
171
185
214
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
71
67
59.5
54
49
45
40
36
33
30
28
25.3
23.2
21.4
19.5
17.7
16.3
14.6
13.3
12
11
9.9
9.1
8.4
7.2
6.8
6.4
6.1
5.5
4.6
5
21.2
22.5
25.2
27.7
30.6
33.2
37.5
41.4
45.7
49.9
53.9
59.3
64.8
70.1
77
85
92
103
113
125
137
152
165
179
207
219
234
246
274
328
344
0.084
0.086
0.088
0.09
0.092
0.094
0.096
0.097
0.098
0.099
0.1
0.101
0.101
0.102
0.103
0.104
0.104
0.105
0.105
0.106
0.106
0.107
0.107
0.107
0.108
0.108
0.108
0.108
0.108
0.109
0.109
1.5KE22A
1.5KE24A
1.5KE27A
1.5KE30A
1.5KE33A
1.5KE36A
1.5KE39A
1.5KE43A
1.5KE47A
1.5KE51A
1.5KE56A
1.5KE62A
1.5KE68A
1.5KE75A
1.5KE82A
1.5KE91A
1.5KE100A
1.5KE110A
1.5KE120A
1.5KE130A
1.5KE150A
1.5KE160A
1.5KE170A
1.5KE180A
1.5KE200A
1.5KE220A
1.5KE250A
1N6283A
1N6284A
1N6285A
1N6286A
1N6287A
1N6288A
1N6289
1N6290A
1N6291A
1N6292A
1N6293A
1N6294A
1N6295A
1N6296A
1N6297A
1N6298A
1N6299A
1N6300A
1N6301A
1N6302A
1N6303A
***
Indicates JEDEC registered data.
***
1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
*** A transient suppressor is normally selected according to the maximum reverse stand-off voltage (VRWM), which should be equal to or greater than the dc or continuous peak operating
***
voltage level.
{
{
Surge current waveform per Figure 5 and derate per Figure 2 of the General Data — 1500 W at the beginning of this group.
{ {
VBR measured at pulse test current IT at an ambient temperature of 25°C.
# VF applies to Non-CA suffix devices only.
FOR BIDIRECTIONAL APPLICATIONS
— USE CA SUFFIX ON 1.5KE SERIES for 1.5KE6.8CA
through 1.5KE250CA.
Electrical characteristics apply in both directions.
Preferred Bidirectional Devices —
1.5KE10CA
1.5KE12CA
1.5KE18CA
1.5KE36CA
500 Watt Peak Power Data Sheet
4-2
Motorola TVS/Zener Device Data
100
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ TA= 25
°
C
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 5
PP , PEAK POWER (kW)
100
80
60
40
20
0
0
25
50
75
100 125 150 175 200
TA, AMBIENT TEMPERATURE (°C)
10
1
µs
0.1
1
µs
10
µs
100
µs
1 ms
10 ms
tP, PULSE WIDTH
Figure 1. Pulse Rating Curve
Figure 2. Pulse Derating Curve
1N6373, ICTE-5, MPTE-5,
through
1N6389, ICTE-45, C, MPTE-45, C
10,000
MEASURED @
ZERO BIAS
10,000
1N6267A/1.5KE6.8A
through
1N6303A/1.5KE200A
MEASURED @
ZERO BIAS
C, CAPACITANCE (pF)
1000
MEASURED @
STAND-OFF
VOLTAGE (VR)
C, CAPACITANCE (pF)
1000
MEASURED @
STAND-OFF
VOLTAGE (VR)
100
100
10
1
10
100
1000
BV, BREAKDOWN VOLTAGE (VOLTS)
10
1
10
100
1000
BV, BREAKDOWN VOLTAGE (VOLTS)
Figure 3. Capacitance versus Breakdown Voltage
PD , STEADY STATE POWER DISSIPATION (WATTS)
3/8″
5
4
3
2
1
0
0
25
50
75
100 125 150 175
TL, LEAD TEMPERATURE (°C)
200
0
0
3/8″
VALUE (%)
100
tr
PEAK VALUE — IRSM
PULSE WIDTH (tP) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAYS TO 50%
OF IRSM.
tr
≤
10
µs
IRSM
2
HALF VALUE –
50
tP
1
2
t, TIME (ms)
3
4
Figure 4. Steady State Power Derating
Devices listed in bold, italic are Motorola preferred devices.
Figure 5. Pulse Waveform
Motorola TVS/Zener Device Data
500 Watt Peak Power Data Sheet
4-3
1N6373, ICTE-5, MPTE-5,
through
1N6389, ICTE-45, C, MPTE-45, C
1000
500
I Z, ZENER CURRENT (AMPS)
200
100
50
20
10
5
2
1
0.3
0.5 0.7 1
2
3
5 7 10
20 30
∆V
Z, INSTANTANEOUS INCREASE IN VZ ABOVE VZ(NOM) (VOLTS)
1
0.7
0.5
0.3
DERATING FACTOR
0.2
0.1
0.07
0.05
0.03
0.02
10
µs
0.01
0.1
0.2
0.5
1
2
5
10
D, DUTY CYCLE (%)
20
TL = 25°C
tP = 10
µs
VZ(NOM) = 6.8 to 13 V
20 V
43 V
24 V
1000
500
I Z, ZENER CURRENT (AMPS)
200
100
50
20
10
5
2
1
TL = 25°C
tP = 10
µs
1N6267A/1.5KE6.8A
through
1N6303A/1.5KE200A
VZ(NOM) = 6.8 to 13 V
20 V
24 V
43 V
75 V
180 V
120 V
0.3
0.5 0.7 1
2
3
5 7 10
20 30
∆V
Z, INSTANTANEOUS INCREASE IN VZ ABOVE VZ(NOM) (VOLTS)
Figure 6. Dynamic Impedance
PULSE WIDTH
10 ms
1 ms
100
µs
50
100
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 pro-
tected. In this situation, there is a time delay associated with
the capacitance of the device and an overshoot condition as-
sociated 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 volt-
age to the clamp voltage as shown in Figure A.
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 B. 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 unaccept-
able overshoot. Proper circuit layout, minimum lead lengths
500 Watt Peak Power Data Sheet
4-4
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 op-
eration.
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
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 7 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 7 is multiplied by the peak power value of
Figure 1 for the same pulse, the results follow the expected
trend.
Motorola TVS/Zener Device Data
TYPICAL PROTECTION CIRCUIT
Zin
Vin
LOAD
VL
V
Vin (TRANSIENT)
VL
V
OVERSHOOT DUE TO
INDUCTIVE EFFECTS
Vin (TRANSIENT)
VL
Vin
td
tD = TIME DELAY DUE TO CAPACITIVE EFFECT
t
t
Figure 8.
Figure 9.
UL RECOGNITION*
The entire series has
Underwriters Laboratory Recognition
for the classification of protectors (QVGV2) under the UL
standard for safety 497B and File #116110. Many competitors
only have one or two devices recognized or have recognition
in a non-protective category. Some competitors have no
recognition at all. With the UL497B recognition, our parts
successfully passed several tests including Strike Voltage
Breakdown test, Endurance Conditioning, Temperature test,
Dielectric Voltage-Withstand test, Discharge test and several
more.
Whereas, some competitors have only passed a flammabil-
ity test for the package material, we have been recognized for
much more to be included in their Protector category.
*Applies to 1.5KE6.8A, CA thru 1.5KE250A, CA
CLIPPER BIDIRECTIONAL DEVICES
1. Clipper-bidirectional devices are available in the 1.5KEXXA
series and are designated with a “CA” suffix; for example,
1.5KE18CA. Contact your nearest Motorola representative.
2. Clipper-bidirectional part numbers are tested in both direc-
tions to electrical parameters in preceeding table (except for
VF which does not apply).
3. The 1N6267A through 1N6303A series are JEDEC regis-
tered devices and the registration does not include a “CA”
suffix. To order clipper-bidirectional devices one must add
CA to the 1.5KE device title.
Devices listed in bold, italic are Motorola preferred devices.
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