Varistor Products
High Reliability Varistors
High Reliability Varistors
DA Series
MIL
QPL
Description
Littelfuse High Reliability Varistors offer the latest in
increased product performance, and are available for
applications requiring quality and reliability assurance levels
consistent with military or other standards (MIL-STD-19500,
MIL-STD-750, Method 202). Additionally, Littelfuse
Varistors are inherently radiation hardened compared
to Silicon Diode suppressors as illustrated in Figure 1.
ZA Series
Littelfuse High-Reliability Varistors involve five categories:
DB Series
1
DSSC Qualified Parts List (QPL) MIL-R-83530
(4 items presently available)
Littelfuse High Reliability Series TX Equivalents
(29 items presently available)
Custom Types
Processed to customer-specific requirements
- (SCD) or to Standard Military Flow
Agency Approvals
2
3
4
Commercial Item Descriptors (CID)
identified for Government use:
CID AA-55564-3 - Littelfuse ZA Series
CID AA-55564-2 - Littelfuse DA, DB Series
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html
for current information.
197
Revision: January 9, 2009
High Reliability Varistors
High Reliability MOVs
Varistor Products
High Reliability Varistors
1) DSSC Qualified Parts List (QPL) MIL-R-83530
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.
Table 1. MIL-R-83530/1 Ratings and Characteristics
Part
Number
M83530/
1-2000B
1-2200D
1-4300E
1-5100E
Nominal
Varistor
Voltage
(V)
200
220
430
510
Voltage Rating
(V)
(RMS)
130
150
275
320
(DC)
175
200
369
420
Energy
Rating
(J)
50
55
100
120
Clamping
Voltage
Capacitance
at 100A at 1MHz (pF)
(V)
325
360
680
810
3800
3200
1800
1500
Clamping
Voltage
At Peak
Current
Rating (V)
570
650
1200
1450
Nearest
Commercial
Equivalent
V130LA20B
V150LA20B
V275LA40B
V320LA40B
Tolerance
(%)
-/+10
+10, -5
+5, -10
+5, -10
I
TM
(A)
6000
6000
6000
6000
Table 2. Mil-R-83530 Group A, B, and C Inspections
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
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
10
10
10
10
10
10
0
0
0
0
0
0
0
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html
for current information.
AQL
(Percent
Defective)
100%
100%
100%
100%
100%
-
-
-
-
-
-
-
-
-
-
-
-
Major
Minor
Number
of Sample
Units
-
-
-
-
-
Per Plan
Per Plan
Per Plan
Per Plan
Per Plan
Failures
Allowed
-
-
-
-
-
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
High Reliability Varistors
198
Revision: January 9, 2009
Varistor Products
High Reliability Varistors
2) 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
Device
Mark
130TX
130TX10
130TX20
150TX
150TX10
150TX20
250TX
250TX20
250TX40
420TX20
420TX40
480TX40
480TX80
510TX40
510TX80
(See Section
4) Nearest
Commercial
Equivalent
V130LA2
V130LA10A
V130LA20A
V150LA2
V150LA10A
V150LA20B
V250LA4
V250LA20A
V250LA40B
V420LA20A
V420LA40B
V480LA40A
V480LA80B
V510LA40A
V510LA80B
TX Model
Model Size
Device
Mark
8TX1
8TX2
12TX1
12TX2
22TX1
22TX3
24TX50
33TX1
33TX5
33TX70
68TX2
68TX10
82TX2
82TX12
TX Model
V130LTX2
V130LTX10A
V130LTX20B
V150LTX2
V150LTX10A
V150LTX20B
V250LTX4
V250LTX20A
V250LTX40B
V420LTX20A
V420LTX40B
V480LTX40A
V480LTX80B
V510LTX40A
V510LTX80B
Model Size
7mm
14mm
20mm
7mm
14mm
20mm
7mm
14mm
20mm
14mm
20mm
14mm
20mm
14mm
20mm
V8ZTX1
V8ZTX2
V12ZTX1
V12ZTX2
V22ZTX1
V22ZTX3
V24ZTX50
V33ZTX1
V33ZTX5
V33ZTX70
V68ZTX2
V68ZTX10
V82ZTX2
V82ZTX12
7mm
10mm
7mm
10mm
7mm
14mm
20mm
7mm
14mm
20mm
7mm
14mm
7mm
14mm
The TX Series of varistors are 100% screened and conditioned in accordance with MIL
-STD-750.Tests are as outlined in Table 6.
INSPECTION LOTS
FORMED AFTER
ASSEMBLY
LOTS PROPOSED
FOR TX TYPES
REVIEW OF DATA
TX PREPARA TION
FOR DELIVERY
QA ACCEPTANCE
SAMPLE PER
APPLICABLE DEVICE
SPECIFICATION
>
>
100% SCREENING
>
>
TABLE 6. TX Equivalents Series 100% Screening
MIL-STD-105
LEVEL
Electrical (Bidirectional)
V
N(DC)
, V
C
(Per Specifications Table)
Dielectric Withstand Voltage
MIL–STD–202, Method 301, 2500V Min. at 1.0
μA
DC
Solderability
MIL–STD–202, Method 208, No Aging, Non-Activated
II
-
-
AQL
0.1
-
-
LTPD
-
15
15
TABLE 7. Quality Assurance Acceptance Test
Screen
High Temperature Life
(Stabilization Bake)
Thermal Shock
(Temperature Cycling)
Humidity Life
Interim Electrical V
N(DC)
V
C
(Note 3)
Power Burn-In
Final Electrical +V
N(DC)
V
C
(Note 3)
External Visual
Examination
2071
1038
1051
100%
100%
100% Screen
100%
100% Screen
100%
MIL-STD-750
Method
1032
Condition
24 hours min at max rated storage temperature.
TX Requirements
100%
85°C, 85% RH, 168 Hrs.
As specified, but including delta parameter as a minimum.
Condition B, 85°C, rated V
M(AC)
, 72 hours min.
As specified - All parameter measurements must be completed within 96
hours after removal from burn-in conditions.
To be performed after complete marking.
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html
for current information.
199
Revision: January 9, 2009
High Reliability Varistors
High Reliability MOVs
No dwell is required at 25°C. Test condition A1, 5 cycles -55°C to +125°C
Varistor Products
High Reliability Varistors
3) Custom Types
In addition to our comprehensive high-reliability series, Littelfuse can screen and condition to specific requirements.
Additional mechanical and environmental capabilities are defined in Table 8.
TABLE 8. Mechanical And Environmental Capabilities (Typical Conditions)
Test Name
Terminal Strength
Drop Shock
Variable Frequency Vibration
Constant Acceleration
Salt Atmosphere
Soldering Heat/Solderability
Resistance to Solvents
Flammability
Flammability
Cyclical Moisture Resistance
Steady-State Moisture Resistance
Biased Moisture Resistance
Temperature Cycle
High-Temperature Life (Nonoperating)
Burn-In
Hermetic Seal
Test Method
MIL
-STD-750-2036
MIL
-STD-750-2016
MIL
-STD-750-2056
MIL
-STD-750-2006
MIL
-STD-750-1041
MIL
-STD-750-2031/2026
MIL–STD–202-215
MIL–STD–202-111
UL1414
MIL–STD–202-106
MIL–STD–750-1021.3
MIL–STD–750-1021.3
MIL–STD–202-107
MIL
-STD-750-1032
MIL
-STD-750-1038
MIL
-STD-750-1071
Description
3 Bends, 90° Arc, 16oz. Weight
1500g’s, 0.5ms, 5 Pulses, X
1
, V
1
, Z
1
20g’s, 100-2000Hz, X
1
, V
1
, Z
1
V
2
, 20,000g’s Min
35°C, 24Hr, 10-50g/m
2
Day
260°C, 10s, 3 Cycles, Test Marking
Permanence, 3 Solvents
15s Torching, 10s to Flameout
3
μ;
15s Torching
10 Days
85/85 96Hr
Not Recommended for High-Voltage Types
-55°C to 125°C, 5 Cycles
125°C, 24Hr
Rated Temperature and V
RMS
Condition D
High Reliability Varistors
200
Revision: January 9, 2009
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html
for current information.
Varistor Products
High Reliability Varistors
4) Commercial Items
The General Services Administration has authorized the
use of the Commercial Item Description (CID) for all
government agencies. There are three (3) listed series
within Littelfuse leaded/Industrial range:
A-A-55564-3 (ZA Series)
A-A-55564-2 (DA/DB Series)
Table 9. ZA Series A-A-55564-3
Dash Number
AA5556403–
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
021
Equiv. Littelfuse
Commercial Part
V22ZA05
V22ZA1
V22ZA2
V22ZA3
V24ZA50
V27ZA05
V27ZA1
V27ZA2
V27ZA4
V27ZA60
V33ZA05
V33ZA1
V33ZA2
V33ZA5
V33ZA70
V36ZA80
V39ZA05
V39ZA1
V39ZA3
V39ZA6
V47ZA05
Dash Number
AA5556403–
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
037
038
039
040
041
042
Equiv. Littelfuse
Commerical Part
V47ZA1
V47ZA3
V47ZA7
V56ZA05
V56ZA2
V56ZA3
V56ZA8
V68ZA05
V68ZA2
V68ZA3
V68ZA10
V82ZA05
V82ZA2
V82ZA4
V82ZA12
V100ZA05
V100ZA3
V100ZA4
V100ZA15
V120ZA05
V120ZA1
Dash Number
AA5556403–
043
044
045
046
047
048
049
050
051
052
053
054
055
056
057
058
059
060
061
062
063
Equiv.littelfuse
Commercial Part
V120ZA4
V120ZA6
V150ZA05
V150ZA1
V150ZA4
V150ZA8
V180ZA05
V180ZA1
V180ZA5
V180ZA10
V8ZA05
V8ZA1
V8ZA2
V12ZA05
V12ZA1
V12ZA2
V18ZA05
V18ZA1
V18ZA2
V18ZA3
V18ZA40
S6019
MFR’s Cage
The PIN number should be used to buy commercial product
to the CID. The manufacturer’s number shown should not
be used for ordering purposes.
PIN consists of abbreviated CID number + Applicable Sheet
(2 digits) + Dash number (-3 digits)
Example:
AA55564 + 02 + -001 = AA5556402-001
Table 10. DA/DB Series A-A-55564-2
Dash Number
AA5556402–
001
002
003
004
005
006
007
008
009
010
011
S6019
MFR’s Cage
Equiv. Littelfuse
Commercial Part
V131DA40
V151DA40
V251DA40
V271DA40
V321DA40
V421DA40
V481DA40
V511DA40
V571DA40
V661DA40
V751DA40
Dash Number
AA5556402–
012
013
014
015
016
017
018
019
020
021
022
S6019
MFR’s Cage
Equiv. Littelfuse
Commercial Part
V131DB40
V151DB40
V251DB40
V271DB40
V321DB40
V421DB40
V481DB40
V511DB40
V571DB40
V661DB40
V751DB40
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html
for current information.
201
Revision: January 9, 2009
High Reliability Varistors
High Reliability MOVs
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