LITTELFUSE TMOV34S181MP

Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
®
The Littelfuse Industrial TMOV34S series thermally protected varistor
represents a new development in circuit protection. It consists of a 34mm
square format varistor element ( MOV) with an integral thermally activated
element designed to open in the event of overheating due to abnormal
over-voltage, limited current conditions as outlined in UL1449 Feb. 1998
edition.The device has a third lead, an indicator lead, which may be used
to indicate that the MOV has been disconnected from the circuit. This lead
facilitates connection to monitoring circuitry. The TMOV34S devices offer
quick thermal response due to the close proximity of the integrated thermal element to the MOV body. The integrated configuration also offers
lower inductance than most discreet solutions resulting in improved
clamping performance to fast over-voltage transients.
2
VARISTOR
PRODUCTS
Features
• US Patent for Thermally Protected MOV- Patent # 6636403
• Designed to facilitate compliance to UL1449 for TVSS product.
• Hi Peak Current Rating to 40 kA.
• -55 Deg C to +85 Deg C operating temp.
• Agency Recognition : UL
• Alternative Design available with narrow
3mm wide monitor (right) lead.
Applications
• TVSS Products
AGENCY APPROVALS:
Recognized by UL under File UL E75901
• AC Panel Protection Modules
34mm Devices-Devices are approved as an MOV to UL1449. Devices with
ratings greater than 420VAC are not affected by these abnormal voltage conditions.
• AC Line Power Supplies
Accelerated Aging Testing-34mm devices comply with Acclerated Aging
Test requirements per. ANSI/IEEE C62.11 and may be used in secondary
surge arrestors.
• UPS (Uninterruptable Power Supply)
AGENCY FILE NUMBERS: ULE75961 (UL1449)
• AC Power Meters
• Inverters
• AC/DC Power Supplies
• DIN Rail
NEW LEAD-FREE AND
RoHS COMPLIANT PARTS
AVAILABLE
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Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
Absolute Maximum Ratings
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 to 750
Transient:
Peak Pulse Current (ITM)
For 8x20µs Current Wave, single pulse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 40,000
Single-Pulse Energy Capability
For 2ms Current Wave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 to 1050
V
A
J
Operating Ambient Temperature Range (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +85
Storage Temperature (TSTG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500
Thermal Protection Isolation Voltage Capability (when operated)
-Under UL1449 Limited Current Test Procedure-see Note #1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000
˚C
o
C
%/oC
V
V
MΩ
I#1 - Under Ul1449 limited current testing parts rated >420V will not open due to 600V voltage limit. Devices with ratings >420V have not yet been evaluated.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications - TMOV Varistor Series™
RoHS Pb
LEAD-FREE
AND RoHS
COMPLIANT
MODELS
MAXIMUM RATING (85°C)
TRANSIENT
PEAK SURGE
MCOV
CURRENT
AC
ENERGY
SURGE
ARRESTER
8/20µs
VOLTS
2ms
ITM
WTM
VM(AC)RMS VM(AC)RMS 1 x PULSE 1 x PULSE
(V)
(A)
(V)
(J)
CONTINUOUS
STANDARD
MODELS
PART
NUMBER
PART
NUMBER
TMOV34S111MP
TMOV34S131MP
TMOV34S141MP
TMOV34S151MP
TMOV34S181MP
TMOV34S201MP
TMOV34S251MP
TMOV34S271MP
TMOV34S301MP
TMOV34S321MP
TMOV34S331MP
TMOV34S351MP
TMOV34S391MP
TMOV34S421MP
TMOV34S461MP
TMOV34S481MP
TMOV34S511MP
TMOV34S551MP
TMOV34S571MP
TMOV34S621MP
TMOV34S661MP
TMOV34S681MP
TMOV34S751MP
TMOV34S111M
TMOV34S131M
TMOV34S141M
TMOV34S151M
TMOV34S181M
TMOV34S201M
TMOV34S251M
TMOV34S271M
TMOV34S301M
TMOV34S321M
TMOV34S331M
TMOV34S351M
TMOV34S391M
TMOV34S421M
TMOV34S461M
TMOV34S481M
TMOV34S511M
TMOV34S551M
TMOV34S571M
TMOV34S621M
TMOV34S661M
TMOV34S681M
TMOV34S751M
115
130
140
150
180
200
250
275
300
320
330
350
385
420
460
480
510
550
575
620
660
680
750
98
111
119
128
153
170
213
234
255
272
281
298
327
357
391
408
434
468
489
527
561
578
638
235
270
291
300
330
335
370
400
435
460
475
500
550
600
620
650
700
735
770
840
900
950
1050
400001
400002
400003
400004
400005
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
VARISTOR
VOLTAGE AT 1mA
TEST CURRENT
VN(DC)
MIN
(V)
163
184
198
212
254
283
354
389
433
462
476
505
555
610
642
670
735
770
805
880
940
980
1080
SPECIFICATIONS (25°C)
MAXIMUM
TYPICAL
CLAMPING VOLTAGE
CAPACITANCE
8/20µs at
200A
f = 1MHz
VN(DC)
MAX
(V)
202
228
248
268
312
357
429
473
528
561
581
616
678
748
783
825
910
939
1000
1074
1160
1195
1320
VC
(V)
C
(pF)
305
345
375
405
488
540
650
730
780
830
855
910
1005
1130
1188
1240
1350
1415
1480
1589
1720
1772
2000
11500
10000
9000
8000
6800
6500
5000
4500
4050
3800
3700
3500
3300
3000
2800
2700
2500
2250
2200
2100
2000
1970
1800
Notes
1. Peak current applies to applications rated up to 100 VAC
, 132 VDC. Peak current is 30kA max for applications greater than 100 VAC
, 132 VDC.
RMS
RMS
2. Peak current applies to applications rated up to 115 VAC
, 145 VDC. Peak current is 30kA max for applications greater than 115 VAC
, 145 VDC.
RMS
RMS
, 165 VDC. Peak current is 30kA max for applications greater than 123 VAC
, 165 VDC.
3. Peak current applies to applications rated up to 123 VAC
RMS
RMS
4. Peak current applies to applications rated up to 132 VAC
, 176 VDC. Peak current is 30kA max for applications greater than 132 VAC
, 176 VDC.
RMS
RMS
, 211 VDC. Peak current is 30kA max for applications greater than 158 VAC
, 211 VDC.
5. Peak current applies to applications rated up to 158 VAC
RMS
96
RMS
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Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
Thermal Characteristics
10
100
PERCENT OF RATED VALUE
Typical
5A
2.5A
0.5A
0.125A
1
80
60
40
2
20
0.1
100
1000
0
10000
-55
Time s
* Figure 4: Typical time to open circuit under UL1449
Abnormal Overvoltage Limited Current Test
50
60
70
80
90
100
AMBIENT TEMPERATURE (ºC)
110
120
130
VARISTOR
PRODUCTS
10
Figure 5: Peak Current & Energy Derating Curve
Note : The Industrial TMOV Series TMOV34S devices are intended, in
conjunction with appropriate enclosure design, to help facilitate TVSS
module compliance to UL 1449, Section 37.4 (abnormal over-voltage limited current requirements). Under these extreme abnormal over-voltage
conditions, the units will exhibit substantial heating and potential venting
prior to opening. Modules should be designed to contain this possibility.
Application testing is strongly recommended.
For applications exceeding 85ºC ambient
temperature, the peak surge current and energy
ratings must be reduced as shown in Figure 3.
Pulse Rating Curves
50,000
1
20,000
SURGE CURRENT (A)
10,000
2
10
5,000
102
2,000
103
1,000
Hx34
105
106
104
500
200
100
50
20
10
INDEFINITE
20
100
1,000
10,000
IMPULSE DURATION ( µs)
FIGURE 6. SURGE CURRENT RATING CURVES FOR
TMOV43S
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Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
Transient V-I Characteristic Curves
10000
TA = -55 C to 85C
TMOV34S
V751
V661
Voltage
Volts
V511
V551
V681
V571
1000
V481
V141 V131
V111
V441
V151
Current - AMPS
100
0.001
0.01
0.1
1
10
100
1000
10000
V421
V391
V351 V331 V321 V301 V271
V251 V201 V181
Fig 7. V-I Characteristic Curves For TMOV34S® Varistor
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100000
Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
iTMOV Varistor Application Examples
The application examples below show how the indicator lead on the
iTMOV can be used to indicate that the thermal element has been
opened. This signifies that the circuit is no longer protected from
transients by the MOV.
Monitor Lead
Line
2
VARISTOR
PRODUCTS
Line Fuse
To Protected Circuit
Normally On
TMOV34S
LED
R
Neutral
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99
Varistor Products
High Energy Industrial Thermally Protected
RoHS
Pb
TMOV34S® Varistor Series
NOTE:
Dimension in mm is typical, unless otherwise specified
To order alternative design with narrow 3mm monitor
lead(right hand terminal as shown) add suffix X2696 to part number
Part Number
T max
Body Thickness
S
Mounting Terminal
Offset
TMOV34S111M(P)
TMOV34S131M(P)
TMOV34S141M(P)
TMOV34S151M(P)
TMOV34S181M(P)
TMOV34S201M(P)
TMOV34S251M(P)
TMOV34S271M(P)
TMOV34S301M(P)
TMOV34S321M(P)
TMOV34S331M(P)
TMOV34S351M(P)
TMOV34S391M(P)
TMOV34S421M(P)
TMOV34S461M(P)
TMOV34S481M(P)
TMOV34S511M(P)
TMOV34S551M(P)
TMOV34S571M(P)
TMOV34S621M(P)
TMOV34S661M(P)
TMOV34S681M(P)
TMOV34S751M(P)
11.90
12.20
12.30
12.40
12.80
13.00
12.75
12.95
13.30
13.50
13.60
13.80
14.20
14.50
14.75
14.95
15.40
15.60
15.90
16.40
16.85
17.20
17.80
5.2 ±.65
5.5 ±.65
5.7 ±0.85
5.9 ±0.85
6.3 ±0.85
6.5 ±0.85
6.25 ±0.85
6.5 ±0.85
6.8 ±1.0
6.9 ±1.0
7.2 ±1.0
7.4 ±1.0
7.6 ±1.0
7.85 ±1.0
8.15 ±1.0
8.25 ±1.0
8.6 ±1.0
8.65 ±1.0
8.85 ±1.0
9.25 ±1.0
9.65 ±1.0
9.85 ±1.0
10.65 ±1.0
Ordering Information
Standard Parts
TMOV
34
S
151
M
P
X2696
DEVICE FAMILY
Littelfuse Thermally Protected MOV
Optional Design
5 digit suffix when alternative 3mm
wide monitor lead is required
DISC DIAMETER (mm)
34 mm
CERAMIC SHAPE
S: Square
P: LEAD-FREE AND
RoHS COMPLIANT
OPTION
VM(AC)RMS
115V to 750V
Series Designator
M: 3-Leaded TMOV34S Varistor Series
Supplied in Bulk Pack
100
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