Varistor Products
Aerospace and Military
High Reliability Varistors
The high reliability Littelfuse varistor is the latest step in increased
product performance, and is available for applications requiring quality
and reliability assurance levels consistent with military or other standards.
(MIL-STD-19500, MIL-S-750, Method 202). Additionally, Littelfuse
varistors are inherently radiation hardened compared to silicon diode
suppressors as illustrated in Figure 1.
This series of high-reliability varistors involve five categories:
• DSSC Qualified Parts List (QPL) MIL-R-83530 4 Types Presently Available
• DSSC Standard Military Drawings Based on MIL-R 83530 63 Types
Presently Available:
- ZA Series - Drawing # 87063
- DB Series - Drawing # 90065
• Littelfuse High Reliability Series Offers TX Equivalents 29 Types
Presently Available
• Custom Types Processed to Customer-Specific Requirements - (SCD)
or to Standard Military Flow
• Commercial Items have been identified for Government use as follows:
- Commercial Item Description AA-55564-3 - Littelfuse ZA Series
- Commercial Item Description AA-55564-2 - Littelfuse DA, DB Series
- Commercial Item Description AA-55564-1 - Littelfuse PA Series
MIL
QPL
AGENCY APPROVALS
• DSSC Approved
• QPL Listed
• CECC Certified
• ISO Approved
• UL Recognized
• CSA Certified
DSSC Qualified Parts List (QPL) MIL-R-83530
TABLE 1. MIL-R-83530/1 RATINGS AND CHARACTERISTICS
VOL AGE
T
RATING
(V)
TOLERANCE
(%)
±10
+10, -5
+5, -10
+5, -10
ENERGY
RATING
(J)
50
55
100
120
CLAMPING
VOL AGE
T
AT PEAK
CURRENT
RATING
(V)
570
650
1200
1450
P
ART
NUMBER
M83530/
1-2000B
1-2200D
1-4300E
1-5100E
NOMINAL
VARISTOR
VOL AGE
T
(V)
200
220
430
510
(RMS) (DC)
130
150
275
320
175
200
369
420
CLAMPING
VOL AGE
T
AT 100A
(V)
325
360
680
810
CAPACITANCE
AT 1MHz
(pF)
3800
3200
1800
1500
I
TM
(A)
NEAREST
COMMERCIAL
EQUIVALENT
6000 V130LA20B
6000 V150LA20B
6000 V275LA40B
6000 V320LA40B
This series of varistors are screened and conditioned in accordance with MIL-R-83530 as outlined in Table 2. Manufacturing system conforms to
MIL-I-45208; MIL-Q-9858.
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140
Varistor Products
Aerospace and Military
High Reliability Varistors
MIL-R-83530 Inspections
TABLE 2. MIL-R-83530 GROUP A, B, AND C INSPECTIONS
AQL
(PERCENT
DEFECTIVE)
NUMBER OF
SAMPLE UNITS
FAILURES
ALLOWED
INSPECTION
Group A
SUBGROUP 1
High Temperature Life (Stabilization Bake)
Thermal Shock
Power Burn-In
Clamping Voltage
Nominal Varistor Voltage
SUBGROUP 2
Visual and Mechanical Examination
Body Dimensions
Diameter and Length of Leads
Marking
Workmanship
SUBGROUP 3
Solderability
Group B
SUBGROUP 1
Dielectric Withstanding Voltage
SUBGROUP 2
Resistance to Solvents
SUBGROUP 3
Terminal Strength (Lead Fatigue)
Moisture Resistance
Peak Current
Energy
Group C
EVERY 3 MONTHS
High Temperature Storage
Operating Life (Steady State)
Pulse Life
Shock
Vibration
Constant Acceleration
Energy
MAJOR
MINOR
2
VARISTOR
PRODUCTS
100%
100%
100%
100%
100%
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.0% AQL
7.6% LQ
25% AQL
13.0% LQ
Per Plan
Per Plan
Per Plan
Per Plan
Per Plan
-
-
-
-
-
-
-
-
Per Plan
-
-
-
-
Per Plan
-
-
-
-
Per Plan
-
-
-
-
-
-
-
-
-
-
-
-
-
Per Plan
Per Plan
Per Plan
Per Plan
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
10
10
10
10
10
10
0
0
0
0
0
0
0
141
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Varistor Products
Aerospace and Military
High Reliability Varistors
DSSC Standard Military Drawing # 87063
Based on MIL-R-83530
TABLE 3. ZA SERIES RATINGS AND SPECIFICATIONS
MAXIMUM RATINGS (85
o
C)
CONTINUOUS
TRANSIENT
SPECIFICATIONS (25
o
C)
MAXIMUM
CLAMPING
VOLTAGE
VC AT TEST
CURRENT
(8/20µs)
VC
(V)
51
47
43
43
43
IC
(A)
2
5
5
10
20
87063
DASH
NO.
001
002
003
004
005
(SEE
RMS
DC
CHAPTER 2)
NEAREST
VM(AC) VM(DC)
COMM.
(PAGE 143)
EQUIV.
(V)
(V)
SIZE
V22ZA05
V22ZA1
V22ZA2
V22ZA3
V24ZA50
1
2
3
4
5
14
14
14
14
14
18
18
18
18
18
PEAK
ENERGY CURRENT
(10/1000µs) (8/20µs)
WTM
(J)
0.2
0.9
2.0
4.0
6.5
ITM
(A)
35
150
350
750
1500
VARISTOR VOLTAGE
AT 1mA
DC
TEST CURRENT
MIN
(V)
18.7
18.7
18.7
18.7
19.2
VN(DC)
(V)
22
22
22
22
24
(PAGE 143)
TYPICAL
CAPACITANCE
f = 1MHz
(pF)
400
1600
4000
9000
18000
MAX
(V)
26
26
26
26
26
006
007
008
009
010
V27ZA05
V27ZA1
V27ZA2
V27ZA4
V27ZA60
1
2
3
4
5
17
17
17
17
17
22
22
22
22
22
0.25
1.0
2.5
5.0
8.0
35
150
350
750
1500
23
23
23
23
23
27
27
27
27
27
(PAGE 143)
31.1
31.1
31.1
31.1
31.1
59
57
53
53
50
2
5
5
10
20
300
1300
3000
7000
15000
011
012
013
014
015
V33ZA05
V33ZA1
V33ZA2
V33ZA5
V33ZA70
1
2
3
4
5
20
20
20
20
21
26
26
26
26
27
0.3
1.2
3.0
6.0
9.0
35
150
350
750
1500
29.5
29.5
29.5
29.5
29.5
33
33
33
33
33
(PAGE 143)
38
36.5
36.5
36.5
36.5
67
68
64
64
58
2
5
5
10
20
250
1100
2700
6000
13000
016
V36ZA80
5
23
31
10.0
1500
32
36
(PAGE 143)
40
63
20
12000
017
018
019
020
021
022
023
024
025
V39ZA05
V39ZA1
V39ZA3
V39ZA6
V47ZA05
V47ZA1
V47ZA3
V47ZA7
V56ZA05
1
2
3
4
1
2
3
4
1
25
25
25
25
30
30
30
30
35
31
31
31
31
38
38
38
38
45
0.35
1.5
3.5
7.2
0.4
1.8
4.5
8.8
0.5
35
150
350
750
35
150
350
750
35
35
35
35
35
42
42
42
42
50
39
39
39
39
47
47
47
47
56
46
43
43
43
55
52
52
52
66
79
79
76
76
90
92
89
89
108
2
5
5
10
2
5
5
10
2
220
900
2200
5000
200
800
2000
4500
180
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142
Varistor Products
Aerospace and Military
High Reliability Varistors
DSSC Standard Military Drawing # 90065
Based on MIL-R-83530
VOLTAGE
RATING
MAX
(RMS)
130
150
250
275
320
420
480
510
575
660
750
NOMINAL
VARISTOR
VOLTAGE
(V)
200
240
390
430
510
680
750
820
910
1050
1200
+28, -16
±28
+39, -36
±43
+29, -48
+68, -70
+74, -80
+91, -85
+95, -105
±110
±120
MAX CLAMPING
VOLTAGE AT
TEST CURRENT
(V)
345
405
650
730
830
1130
1240
1350
1480
1720
2000
(I)
200
200
200
200
200
200
200
200
200
200
200
90065
DASH
NO.
012
013
014
015
016
017
018
019
020
021
022
ENERGY
MAX
(J)
170
200
270
300
350
460
510
550
600
690
810
PEAK
CURRENT
(A)
22500
22500
22500
22500
22500
28800
28800
28800
28800
28800
28800
TYPICAL
CAPACITANCE
(pF)
10000
8000
5000
4500
3800
3000
2700
2500
2200
2000
1800
NOTE: See Section 4 (DB Series) for nearest equivalent commercial type.
TABLE 4. DB SERIES RATINGS AND SPECIFICATIONS
Littelfuse High Reliability Series TX Equivalents
TABLE 5. AVAILABLE TX MODEL TYPES
(SEE SECTION 4)
NEAREST
COMMERCIAL
EQUIVALENT
V8ZA1
V8ZA2
V12ZA1
V12ZA2
V22ZA1
V22ZA3
V24ZA50
V33ZA1
V33ZA5
V33ZA70
V68ZA2
V68ZA10
V82ZA2
V82ZA12
V130LA2
V130LA10A
V130LA20A
144
TX MODEL
V8ZTX1
V8ZTX2
V12ZTX1
V12ZTX2
V22ZTX1
V22ZTX3
V24ZTX50
V33ZTX1
V33ZTX5
V33ZTX70
V68ZTX2
V68ZTX10
V82ZTX2
V82ZTX12
V130LTX2
V130LTX10A
V130LTX20B
MODEL
SIZE
7mm
10mm
7mm
10mm
7mm
14mm
20mm
7mm
14mm
20mm
7mm
14mm
7mm
14mm
7mm
14mm
20mm
DEVICE
MARK
8TX1
8TX2
12TX1
12TX2
22TX1
22TX3
24TX50
33TX1
33TX5
33TX70
68TX2
68TX10
82TX2
82TX12
130TX
130TX10
130TX20
TX MODEL
V150LTX2
V150LTX10A
V150LTX20B
V250LTX4
V250LTX20A
V250LTX40B
V420LTX20A
V420LTX40B
V480LTX40A
V480LTX80B
V510LTX40A
V510LTX80B
MODEL
SIZE
7mm
14mm
20mm
7mm
14mm
20mm
14mm
20mm
14mm
20mm
14mm
20mm
DEVICE
MARK
150TX
150TX10
150TX20
250TX
250TX20
250TX40
420TX20
420TX40
480TX40
480TX80
510TX40
510TX80
(SEE SECTION 4)
NEAREST
COMMERCIAL
EQUIVALENT
V150LA2
V150LA10A
V150LA20B
V250LA4
V250LA20A
V250LA40B
V420LA20A
V420LA40B
V480LA40A
V480LA80B
V510LA40A
V510LA80B
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