1500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
Microsemi
Scottsdale Division
Page 1
Copyright © 2008
10-29-2008 REV E
WWW.Microsemi .COM
SCOTTSDALE DIVISION
LC6.5 thru LC170A, e3
DESCRIPTION APPEARANCE
This hermetically sealed Transient Voltage Suppressor (TVS) product family
includes a rectifier diode element in series and opposite direction to achieve low
capacitance performance below 100 pF (see Figure 2). The low level of TVS
capacitance may be used for protecting higher frequency applications in inductive
switching environments or electrical systems involving secondary lightning effects
per IEC61000-4-5 as well as RTCA/DO-160D or ARINC 429 for airborne
avionics. With virtually instantaneous response, they also protect from ESD and
EFT per IEC61000-4-2 and IEC61000-4-4. If bipolar transient capability is
required, two of these low capacitance TVS devices may be used in parallel in
opposite directions (anti-parallel) for complete ac protection as shown in Figure 4.
DO-13
(
D
O
-2
0
2AA
)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLIC ATIONS / BENEFITS
• Unidirectional low-capacitance TVS series for flexible
thru-hole mounting (for bidirectional see Figure 4)
• Suppresses transients up to 1500 watts @ 10/1000 µs
(see Figure 1)*
• Clamps transient in less than 100 pico seconds
• Working voltage (VWM) range 6.5 V to 170 V
• Hermetic sealed DO-13 metal package
• Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are also
available by adding MQ, MX, MV, MSP prefixes
respectively to part numbers, e.g. MXLC6.5A, etc.
• Surface mount equivalent packages also available as
SMCJLCE6.5 - SMCJLCE170A or SMCGLCE6.5 -
SMCGLCE170A in separate data sheet (consult factory
for other surface mount options)
• Plastic axial-leaded equivalents available in the LCE6.5
- LCE170A series in separate data sheet
• RoHS Compliant devices available by adding “e3” suffix
• Protection from switching transients and induced RF
• Low capacitance for data line protection up to 1 MHz
• Protection for aircraft fast data rate lines up to Level 5
Waveform 4 and Level 2 Waveform 5A in RTCA/DO-
160D (also see MicroNote 130) & ARINC 429 with bit
rates of 100 kb/s (per ARINC 429, Part 1, par 2.4.1.1)
• ESD & EFT protection per IEC 61000-4-2 and -4-4
• Secondary lightning protection per IEC61000-4-5 with
42 Ohms source impedance:
Class 1: LC6.5 to LC170A
Class 2: LC6.5 to LC150A
Class 3: LC6.5 to LC70A
Class 4: LC6.5 to LC36A
• Secondary lightning protection per IEC61000-4-5 with
12 Ohms source impedance:
Class 1 : LC6.5 to LC90A
Class 2: LC6.5 to LC45 A
Class 3: LC6.5 to LC22A
Class 4: LC6.5 to LC11A
• Secondary lightning protection per IEC61000-4-5 with
2 Ohms source impedance:
Class 2: LC6.5 to LC20A
Class 3: LC6.5 to LC10A
• Inherently radiation hard per Microsemi MicroNote 050
MAXIMUM RAT ING S MECHANICAL AND PACKAGING
• 1500 Watts at 10/1000 μs with repetition rate of 0.01% or
less* at lead temperature (TL) 25oC (see Figs. 1, 2, & 4)
• Operating & Storage Temperatures: -65o to +175oC
• THERMAL RESISTANCE: 50oC/W (Typical) junction to
lead at 0.375 inches (10 mm) from body or 110 oC/W
junction to ambient when mounted on FR4 PC board with
4 mm2 copper pads (1 oz) and track width 1 mm, length
25 mm
• DC Power Dissipation*: 1 Watt at TL < +125oC 3/8” (10
mm) from body (see derating in Fig 3 and note below)
• Solder Temperatures: 260 o C for 10 s (maximum)
• CASE: DO-13 (DO-202AA), welded, hermetically
sealed metal and glass
• FINISH: All external metal surfaces are Tin-Lead
plated and solderable per MIL-STD-750 method 2026
• POLARITY: Cathode connected to case as shown by
diode symbol (cathode positive for normal operation)
• MARKING: Part number and polarity diode symbol
• WEIGHT: 1.4 grams. (Approx)
• TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
• See package dimension on last page
LC6.5 thru LC170A
* TVS devices are not typically used for dc power dissipation and are instead operated < VWM (rated standoff voltage) except for transients that briefly
drive the device into avalanche breakdown (VBR to VC region) of the TVS element. Also see Figures 3 and 4 for further protection details in rated peak
pulse power for unidirectional and bidirectional configurations respectively.
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
Microsemi
Scottsdale Division
Page 2
Copyright © 2008
10-29-2008 REV E
WWW.Microsemi .COM
SCOTTSDALE DIVISION
LC6.5 thru LC170A, e3
ELECTRICAL CHARACTERISTICS @ 25oC
BREAKDOWN VOLTAGE
MICROSEMI
PART
NUMBER
REVERSE
STANDOFF
VOLTAGE
VWM
VOLTS
V(BR)
VOLTS
MIN MAX
@
I(BR)
mA
MAXIMUM
STANDBY
CURRENT
ID @VWM
μA
MAXIMUM
CLAMPING
VOLTAGE
VC @ IPP
VOLTS
MAXIMUM
PEAK
PULSE
CURRENT
IPP @
10/1000 µs
AMPS
MAXIMUM
CAPACITANCE
@ 0 Volts,
f = 1 MHz
pF
WORKING
INVERSE
BLOCKING
VOLTAGE
VWIB
VOLTS
INVERSE
BLOCKING
LEAKAGE
CURRENT
IIB @ VWIB
µA
PEAK
INVERSE
BLOCKING
VOLTAGE
VOLTS
VPIB
VOLTS
LC6.5
LC6.5A
LC7.0
LC7.0A
6.5
6.5
7.0
7.0
7.22
7.22
7.78
7.78
8.82
7.98
9.51
8.60
10
10
10
10
1000
1000
500
500
12.3
11.2
13.3
12.0
100
100
100
100
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC7.5
LC7.5A
LC8.0
LC8.0A
7.5
7.5
8.0
8.0
8.33
8.33
8.89
8.89
10.2
9.21
10.9
9.83
10
10
1
1
250
250
100
100
14.3
12.9
15.0
13.6
100
100
100
100
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC8.5
LC8.5A
LC9.0
LC9.0A
8.5
8.5
9.0
9.0
9.44
9.44
10.0
10.0
11.5
10.4
12.2
11.1
1
1
1
1
50
50
10
10
15.9
14.4
16.9
15.4
94
100
89
97
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC10
LC10A
LC11
LC11A
10
10
11
11
11.1
11.1
12.2
12.2
13.6
12.3
14.9
13.5
1
1
1
1
5
5
5
5
18.8
17.0
20.1
18.2
80
88
74
82
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC12
LC12A
LC13
LC13A
12
12
13
13
13.3
13.3
14.4
14.4
16.3
14.7
17.6
15.9
1
1
1
1
5
5
5
5
22.0
19.9
23.8
21.5
68
75
63
70
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC14
LC14A
LC15
LC15A
14
14
15
15
15.6
15.6
16.7
16.7
19.1
17.2
20.4
18.5
1
1
1
1
5
5
5
5
25.8
23.2
26.9
24.4
58
65
56
61
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC16
LC16A
LC17
LC17A
16
16
17
17
17.8
17.8
18.9
18.9
21.8
19.7
23.1
20.9
1
1
1
1
5
5
5
5
28.8
26.0
30.5
27.6
52
57
49
54
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC18
LC18A
LC20
LC20A
18
18
20
20
20.0
20.0
22.2
22.2
24.4
22.1
27.1
24.5
1
1
1
1
5
5
5
5
32.2
29.2
35.8
32.4
46
51
42
46
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC22
LC22A
LC24
LC24A
22
22
24
24
24.4
24.4
26.7
26.7
29.8
26.9
32.6
29.5
1
1
1
1
5
5
5
5
39.4
35.5
43.0
38.9
38
42
35
39
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC26
LC26A
LC28
LC28A
26
26
28
28
28.9
28.9
31.1
31.1
35.3
31.9
38.0
34.4
1
1
1
1
5
5
5
5
46.6
42.1
50.1
45.4
32
36
30
33
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC30
LC30A
LC33
LC33A
30
30
33
33
33.3
33.3
36.7
36.7
40.7
36.8
44.9
40.6
1
1
1
1
5
5
5
5
53.5
48.4
58.0
53.3
28
31
25.4
28.1
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC36
LC36A
LC40
LC40A
36
36
40
40
40.0
40.0
44.4
44.4
48.9
44.2
54.3
49.1
1
1
1
1
5
5
5
5
64.3
58.1
71.4
64.5
23.3
25.8
21.0
23.3
100
100
100
100
75
75
75
75
10
10
10
10
100
100
100
100
LC43
LC43A
LC45
LC45A
43
43
45
45
47.8
47.8
50.0
50.0
58.4
52.8
61.1
55.3
1
1
1
1
5
5
5
5
76.7
69.4
80.3
72.7
19.5
21.6
18.7
20.6
100
100
100
100
150
150
150
150
10
10
10
10
200
200
200
200
LC48
LC48A
LC51
LC51A
48
48
51
51
53.3
53.3
56.7
56.7
65.1
58.9
69.3
62.7
1
1
1
1
5
5
5
5
85.5
77.4
91.1
82.4
17.5
19.4
16.5
18.2
100
100
100
100
150
150
150
150
10
10
10
10
200
200
200
200
LC6.5 thru LC170A
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
Microsemi
Scottsdale Division
Page 3
Copyright © 2008
10-29-2008 REV E
WWW.Microsemi .COM
SCOTTSDALE DIVISION
LC6.5 thru LC170A, e3
BREAKDOWN VOLTAGE
MICROSEMI
PART
NUMBER
REVERSE
STANDOFF
VOLTAGE
VWM
VOLTS
V(BR)
VOLTS
MIN MAX
@
I(BR)
mA
MAXIMUM
STANDBY
CURRENT
ID @VWM
μA
MAXIMUM
CLAMPING
VOLTAGE
VC @ IPP
VOLTS
MAXIMUM
PEAK
PULSE
CURRENT
IPP @
10/1000 µs
AMPS
CAPACI-
TANCE
@ 0
Volts
pF
WORKING
INVERSE
BLOCKING
VOLTAGE
VWIB
VOLTS
INVERSE
BLOCKING
LEAKAGE
CURRENT
IIB @ VWIB
µA
PEAK
INVERSE
BLOCKING
VOLTAGE
VOLTS
VPIB
VOLTS
LC54
LC54A
LC58
LC58A
54
54
58
58
60.0
60.0
64.4
64.4
73.3
66.3
78.7
71.2
1
1
1
1
5
5
5
5
96.3
87.1
103.0
93.6
15.6
17.2
14.6
16.0
100
100
100
100
150
150
150
150
10
10
10
10
200
200
200
200
LC60
LC60A
LC64
LC64A
60
60
64
64
66.7
66.7
71.1
71.1
81.5
73.7
86.9
78.6
1
1
1
1
5
5
5
5
107.0
96.8
114.0
103.0
14.0
15.5
13.2
14.6
90
90
90
90
150
150
150
150
10
10
10
10
200
200
200
200
LC70
LC70A
LC75
LC75A
70
70
75
75
77.8
77.8
83.3
83.3
95.1
86.0
102.0
92.1
1
1
1
1
5
5
5
5
125
113
134
121
12.0
13.3
11.2
12.4
90
90
90
90
150
150
150
150
10
10
10
10
200
200
200
200
LC80
LC80A
LC90
LC90A
80
80
90
90
88.7
88.7
100
100
108
98.0
122
111
1
1
1
1
5
5
5
5
142
129
160
146
10.6
11.6
9.4
10.3
90
90
90
90
150
150
300
300
10
10
10
10
200
200
200
200
LC100
LC100A
LC110
LC110A
100
100
110
110
111
111
122
122
136
123
149
135
1
1
1
1
5
5
5
5
179
162
196
178
8.4
9.3
7.7
8.4
90
90
90
90
300
300
300
300
10
10
10
10
200
200
400
400
LC120
LC120A
LC130
LC130A
120
120
130
130
133
133
144
144
163
147
176
159
1
1
1
1
5
5
5
5
214
193
231
209
7.0
7.8
6.5
7.2
90
90
90
90
300
300
300
300
10
10
10
10
400
400
400
400
LC150
LC150A
LC160
LC160A
150
150
160
160
167
167
178
178
204
185
218
197
1
1
1
1
5
5
5
5
268
243
287
259
5.6
6.2
5.2
5.8
90
90
90
90
300
300
300
300
10
10
10
10
400
400
400
400
LC170
LC170A
170
170
189
189
231
209
1
1
5
5
304
275
4.9
5.4
90
90
300
300
10
10
400
400
NOTE: TVS are normally selected according to the reverse “Standoff Voltage” (VWM) that should be equal to or greater than the dc or continuous
peak operating voltage level.
GRAPHS
Peak Pulse Power
LC6.5 thru LC170A
FIGURE 1
Pulse Time (tw) in μs
Pulse Time (tW) in μs
vs.
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 4
Copyright © 2008
10-29-2008 REV E
WWW.Microsemi .COM
SCOTTSDALE DIVISION
LC6.5 thru LC170A, e3
SCHEMATIC APPLICATIONS
The TVS low capacitance device configuration is shown in Figure 2. As a further option for unidirectional applications, an additional low
capacitance rectifier diode may be used in parallel in the same polarity direction as the TVS as shown in Figure 3. In applications where random
high voltage transients occur, this will prevent reverse transients from damaging the internal low capacitance rectifier diode and also provide a
low voltage conducting direction. The added rectifier diode should be of similar low capacitance and also have a higher reverse voltage rating
than the TVS clamping voltage VC. The Microsemi recommended rectifier part number is the “LCR80” for the application in Figure 5. If using two
(2) low capacitance TVS devices in anti-parallel for bidirectional applications, this added protective feature for both directions (including the
reverse of each rectifier diode) is also provided. The unidirectional and bidirectional configurations in Figure 3 and 4 will both result in twice the
capacitance of Figure 2.
FIGURE 2 FIGURE 3 FIGURE 4
TVS with internal Low Optional Unidirectional Optional Bidirectional
Capacitance Diode configuration (TVS and configuration (two TVS
separate rectifier diode) devices in anti-parallel)
in parallel)
PACKAGE DIMEN SIONS
LC6.5 thru LC170A
DO-13 (or DO-202AA)
