SMAJP4KE6.8 thru SMAJP4KE400CA
TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
WWW.Microsemi .COM SMAJP4KE6.8 thru
S
MA
J
P4KE4
00C
A
DESCRIPTION PACKAGE
This Transient Voltage Suppressor (TVS) series is an economical molded
surface mount package with very low thermal resistance due to its unique
axial subassembly. It is used for automotive applications and others to
protect voltage sensitive components from destructive or partial degradation.
They have a peak pulse power rating of 400 watts for 1 ms as depicted in
Figures 1 and 2. The package is configured for easy pick and place onto PC
Boards for automated handling. The J-bend terminations also provide stress
relief for use on a variety of PC Board materials.
DO-214AC or BA
(SMAJ)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• Economical series for surface mounting
• Available in both unidirectional and bi-directional (add
C or CA suffix to part number for bidirectional)
• Voltages from 6.8 to 400 V Breakdown (VBR)
• Fast Response
• Moisture classification is Level 1 per IPC/JEDEC
J-STD-020B with no dry pack
• Optional 100% screening for avionics grade is
available by adding MA prefix to part number for
added 100% temperature cycle -55oC to +125oC
(10X) as well as surge (3X) and 24 hours HTRB with
post test VZ & IR (in the operating direction for
unidirectional or both directions for bidirectional)
• Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, or JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers
• Equivalent axial-lead packages available as P4KE6.8
to P4KE400CA
• Suppresses transient up to 400 watts @ 10/1000
µs (see Figure 1)
• Protects sensitive components such as IC’s,
CMOS, Bipolar, BiCMOS, ECL, DTL, T2L, etc.
• Protection from switching transients & induced RF
• Compliant to IEC61000-4-2 and IEC61000-4-4 for
ESD and EFT protection respectively
• Secondary lightning protection per IEC61000-4-5
with 42 Ohms source impedance:
Class 1: SMAJP4KE6.8 to SMAJP4KE91A or CA
Class 2: SMAJP4KE6.8 to SMAJP4KE47A or CA
Class 3: SMAJP4KE6.8 to SMAJP4KE24A or CA
Class 4: SMAJP4KE6.8 to SMAJP4KE12A or CA
• Secondary lightning protection per IEC61000-4-5
with 12 Ohms source impedance:
Class 1: SMAJP4KE6.8 to SMAJP4KE30A or CA
Class 2: SMAJP4KE6.8 to SMAJP4KE15A or CA
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Peak Pulse Power dissipation at 25ºC: 400 watts at
10/1000 µs (also see Fig 1,2, and 4)
• Impulse repetition rate (duty factor): 0.01%
• tclamping (0 volts to V(BR) min.): < 100 ps theoretical for
unidirectional and < 5 ns for bidirectional
• Operating and Storage temperature: -65ºC to +150ºC
• Thermal resistance: 17 ºC/W junction to lead or
82ºC/W junction to ambient when mounted on FR4
PC board (1 oz Cu) with recommended footprint (see
last page)
• Steady-State Power dissipation: 5 watts at TL = 65oC
or 1.52 watts at TA = 25ºC when mounted on FR4 PC
board with recommended footprint
• Forward Surge Current at 25ºC: 40 amps peak, 8.3
ms half-sine wave. Maximum voltage of 3.50 V
(unidirectional only)
• Solder temperatures: 260 ºC for 10 s (maximum)
• Molded epoxy package meets UL94V-0
• Terminations are tin-lead plated solderable per
MIL-STD-750, method 2026
• Cathode designated by cathode band for
unidirectional (none for bidirectional)
• Weight: 0.1 grams (approximate)
• Tape & Reel option: Standard per EIA-481-1-A
with 12 mm tape (add “TR” suffix to part number)
750 per 7 inch reel or 2500 per 13 inch reel
• Marking only shows 4KExxx digits of part number
(e.g. 4KE6.8, 4KE12CA, 4KE30A, etc.)
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2002
6-16-2004 REV C
SMAJP4KE6.8 thru SMAJP4KE400CA
TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
WWW.Microsemi .COM SMAJP4KE6.8 thru
S
MA
J
P4KE4
00C
A
ELECTRICAL CHARACTERISTICS @ 25oC
BREAKDOWN
VOLTAGE
V(BR) @ I(BR)
TYPE
NUMBER
RATED
STAND-
OFF
VOLTAGE
VWM MIN. MAX.
MAXIMUM
CLAMPING
VOLTAGE
VC MAX. @
IPP
MAXIMUM
REVERSE
LEAKAGE
CURRENT
ID @ VWM
MAXIMUM
PEAK
PULSE
CURRENT
IPP
MAXIMUM
TEMPERATURE
COEFFICIENT
of V(BR)
αV(BR)
V V V mA V µA A % /
oC
SMAJP4KE6.8
SMAJP4KE6.8A
SMAJP4KE7.5
SMAJP4KE7.5A
5.50
5.80
6.05
6.40
6.12
6.45
6.75
7.13
7.48
7.14
8.25
7.88
10
10
10
10
10.8
10.5
11.7
11.3
500
500
200
200
37
38
34
35
.057
.057
.061
.061
SMAJP4KE8.2
SMAJP4KE8.2A
SMAJP4KE9.1
SMAJP4KE9.1A
6.63
7.02
7.37
7.78
7.38
7.79
8.19
8.65
9.02
8.61
10.0
9.55
10
10
1
1
12.5
12.1
13.8
13.4
100
100
20
20
32
33
29
30
.065
.065
.068
.068
SMAJP4KE10
SMAJP4KE10A
SMAJP4KE11
SMAJP4KE11A
8.10
8.55
8.92
9.40
9.00
9.50
9.90
10.5
11.0
10.5
12.1
11.6
1
1
1
1
15.0
14.5
16.2
15.6
20
5
2
2
27
28
25
26
.073
.073
.075
.075
SMAJP4KE12
SMAJP4KE12A
SMAJP4KE13
SMAJP4KE13A
9.72
10.2
10.5
11.1
10.8
11.4
11.7
12.4
13.2
12.6
14.3
13.7
1
1
1
1
17.3
16.7
19.0
18.2
1
1
1
1
23
24
21
22
.078
.078
.081
.081
SMAJP4KE15
SMAJP4KE15A
SMAJP4KE16
SMAJP4KE16A
12.1
12.8
12.9
13.6
13.5
14.3
14.4
15.2
16.5
15.8
17.6
16.8
1
1
1
1
22.0
21.2
23.5
22.5
1
1
1
1
18
19
17
18
.084
.084
.086
.086
SMAJP4KE18
SMAJP4KE18A
SMAJP4KE20
SMAJP4KE20A
14.5
15.3
16.2
17.1
16.2
17.1
18.0
19.0
19.8
18.0
22.0
21.0
1
1
1
1
26.5
25.2
29.1
27.7
1
1
1
1
15
16
14
14.5
.088
.088
.090
090
SMAJP4KE22
SMAJP4KE22A
SMAJP4KE24
SMAJP4KE24A
17.8
18.8
19.4
20.5
19.8
20.9
21.6
22.8
24.2
23.1
26.4
25.2
1
1
1
1
31.9
30.6
34.7
33.2
1
1
1
1
12.5
13
11.5
12
.092
.092
.094
.094
SMAJP4KE27
SMAJP4KE27A
SMAJP4KE30
SMAJP4KE30A
21.8
23.1
24.3
55.6
24.3
25.7
27.0
28.5
29.7
28.4
33.0
31.5
1
1
1
1
39.1
37.5
43.5
41.4
1
1
1
1
10
11
9.0
9.5
.096
.096
.097
.097
SMAJP4KE33
SMAJP4KE33A
SMAJP4KE36
SMAJP4KE36A
26.8
28.2
29.1
30.8
29.7
31.4
32.4
34.2
36.3
34.7
39.6
37.8
1
1
1
1
47.7
45.7
52.0
49.9
1
1
1
1
8.5
9.0
7.5
8.0
.098
098
.099
.099
SMAJP4KE39
SMAJP4KE39A
SMAJP4KE43
SMAJP4KE43A
31.6
33.3
34.8
36.8
35.1
37.1
38.7
40.9
42.9
41.0
47.3
45.2
1
1
1
1
56.4
53.9
61.9
59.3
1
1
1
1
7.0
7.5
6.5
7.0
.100
.100
.101
.101
SMAJP4KE47
SMAJP4KE47A
SMAJP4KE51
SMAJP4KE51A
38.1
40.2
41.3
43.6
42.3
44.7
45.9
48.5
51.7
49.4
56.1
53.6
1
1
1
1
67.8
64.8
73.5
70.1
1
1
1
1
5.9
6.2
5.4
5.7
.101
.101
.102
.102
SMAJP4KE56
SMAJP4KE56A
SMAJP4KE62
SMAJP4KE62A
45.4
47.8
50.2
53.0
50.4
53.2
55.8
58.9
61.6
58.8
68.2
65.1
1
1
1
1
80.5
77.0
89.0
85.0
1
1
1
1
5.0
5.2
4.5
4.7
.103
.103
.104
.104
SMAJP4KE68
SMAJP4KE68A
SMAJP4KE75
SMAJP4KE75A
55.1
58.1
60.7
64.1
61.2
64.6
67.5
71.3
74.8
71.4
82.5
78.8
1
1
1
1
98.0
92.0
108.0
103.0
1
1
1
1
4.1
4.4
3.7
3.9
.104
.104
.105
.105
SMAJP4KE82
SMAJP4KE82A
SMAJP4KE91
SMAJP4KE91A
66.4
70.1
73.7
77.8
73.8
77.9
81.9
86.5
90.2
86.1
100.0
95.5
1
1
1
1
118.0
113.0
131.0
125.0
1
1
1
1
3.4
3.5
3.1
3.2
.105
.105
.106
.106
SMAJP4KE100
SMAJP4KE100A
SMAJP4KE110
SMAJP4KE110A
81.0
85.5
89.2
94.0
90.0
95.0
99.0
105.0
110.0
105.0
121.0
116.0
1
1
1
1
144.0
137.0
158.0
152.0
1
1
1
1
2.8
2.9
2.5
2.6
.106
.106
.107
.107
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2002
6-16-2004 REV C
SMAJP4KE6.8 thru SMAJP4KE400CA
TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
WWW.Microsemi .COM SMAJP4KE6.8 thru
S
MA
J
P4KE4
00C
A
BREAKDOWN
VOLTAGE
V(BR) @ I(BR)
TYPE
NUMBER
RATED
STAND-
OFF
VOLTAGE
VWM MIN. MAX.
MAXIMUM
CLAMPING
VOLTAGE
VC MAX. @
IPP
MAXIMUM
REVERSE
LEAKAGE
CURRENT
ID @ VWM
MAXIMUM
PEAK
PULSE
CURRENT
IPP
MAXIMUM
TEMPERATURE
COEFFICIENT
of V(BR)
αV(BR)
V V V mA V µA A % /
oC
SMAJP4KE120
SMAJP4KE120A
SMAJP4KE130
SMAJP4KE130A
97.2
102.0
105.0
111.0
108.0
114.0
117.0
124.0
132.0
126.0
143.0
137.0
1
1
1
1
173.0
165.0
187.0
179.0
1
1
1
1
2.3
2.4
2.1
2.2
.107
.107
.107
.107
SMAJP4KE150
SMAJP4KE150A
SMAJP4KE160
SMAJP4KE160A
121.0
128.0
130.0
136.0
135.0
143.0
144.0
152.0
165.0
158.0
176.0
168.0
1
1
1
1
215.0
207.0
230.0
219.0
1
1
1
1
1.9
1.95
1.7
1.8
.108
.108
.108
.108
SMAJP4KE170
SMAJP4KE170A
SMAJP4KE180
SMAJP4KE180A
138.0
145.0
146.0
154.0
153.0
162.0
162.0
171.0
187.0
179.0
198.0
189.0
1
1
1
1
244.0
234.0
258.0
246.0
1
1
1
1
1.6
1.7
1.5
1.6
.108
.108
.108
.108
SMAJP4KE200
SMAJP4KE200A
SMAJP4KE220
SMAJP4KE220A
162.0
171.0
175.0
185.0
180.0
190.0
198.0
209.0
220.0
210.0
242.0
231.0
1
1
1
1
287.0
274.0
344.0
328.0
1
1
1
1
1.4
1.5
1.0
1.0
.108
.108
.110
.110
SMAJP4KE250
SMAJP4KE250A
SMAJP4KE300
SMAJP4KE300A
202.0
214.0
243.0
256.0
225.0
237.0
270.0
285.0
275.0
263.0
330.0
315.0
1
1
1
1
360.0
344.0
430.0
414.0
1
1
1
1
1.0
1.0
1.0
1.0
.110
.110
.110
.110
SMAJP4KE350
SMAJP4KE350A
SMAJP4KE400
SMAJP4KE400A
284.0
300.0
324.0
342.0
315.0
333.0
360.0
380.0
385.0
368.0
440.0
420.0
1
1
1
1
504.0
482.0
574.0
548.0
1
1
1
1
1.0
1.0
1.0
1.0
.110
.110
.110
.110
Forward Voltage (Vf) @ 30 amps peak, 8.3 ms sine wave equal to 3.5 volts maximum for SMAJP4KE6.8 to 200. (Excluding Bidirectional)
For bi-directional construction, indicate a C or CA suffix after part number, i.e. SMAJP4KE170CA.
SYMBOLS & DEFINITIONS
Symbol Definition Symbol Definition
VWM Rated Stand-Off Voltage IPP Peak Pulse Current
Ppp Peak Pulse Power VC (MAX) Maximum Clamping Voltage
V(BR) Breakdown Voltage IT Test Current
ID Reverse leakage
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2002
6-16-2004 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 4
Copyright 2002
6-16-2004 REV C
WWW.Microsemi .COM
SMAJP4KE6.8 thru SMAJP4KE400CA
TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
SMAJP4KE6.8 thru
S
MA
J
P4KE4
00C
A
OUTLINE AND CIRCUIT
FIGURE 2
Pulse Waveform for
Exponential Surge
FIGURE 1
Peak Pulse Power vs Pulse Time
TL Lead Temperature oC
Peak Pulse Power (PPP) of Continous
Power in Percent of 25oC Rating
FIGURE 3
Derating Curve
FIGURE 4
P4KE Typical Capacitance vs
Breakdown Voltage (Unipolar)
PACKAGE DIMENSIONS
DIM
INCHES
MIN / MAX
MILLIMETERS
MIN / MAX
NOTE
A
B
C
D
E
F
G
H
J
.078 / .115
.052 / .103
- / .005
- / .02
.030 / .060
.055 / .075
.194 / .216
.160 / .180
.100 / .110
1.98 / 2.92
1.32 / 2.61
- / .127
- / .51
.76 / 1.52
1.65 / 2.13
4.93 / 5.48
3.99 / 4.50
2.57 / 2.79
1
1
NOTE 1: DIMENSION A IS WITHIN DO-214BA BUT HIGHER THAN DO-214AC
JEDEC OUTLINES FOR LOWER THERMAL RESISTANCE.
STANDARD JEDEC OUTLINES. DIMENSION B IS WIDER THAN BOTH
