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TMOV14R115M [LITTELFUSE]

Varistor Products - Thermally Protected; 压敏电阻产品 - 热保护
TMOV14R115M
型号： TMOV14R115M
厂家： LITTELFUSE    LITTELFUSE
描述：

Varistor Products - Thermally Protected
压敏电阻产品 - 热保护

压敏电阻
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Varistor Products  
Thermally Protected  
®
®
®
®
TMOV and iTMOV Varistor Series  
The Littelfuse TMOV and iTMOV thermally protected varistors represent a  
new development in integrated circuit protection (patent pending). Both  
versions are comprised of radial leaded MOVs (Metal Oxide Varistors)  
with an integrated thermally activated element designed to open in the  
event of overheating due to the abnormal over-voltage, limited current,  
conditions outlined in UL1449.  
The iTMOV varistor differs from the TMOV varistor by the inclusion of a  
third lead for the purpose of indicating that the MOV has been disconnect-  
ed from the circuit. This lead facilitates connection to monitoring circuitry.  
The TMOV and iTMOV varistors 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 discrete  
solutions resulting in improved clamping performance to fast over-voltage  
transients. Additionally, TMOV and iTMOV varistors are wave solderable,  
thus simplifying end product assembly by reducing the expense and  
rework associated with hand soldering operations.  
The TMOV and iTMOV varistors are both recognized surge suppression  
components to UL 1449. The TMOV and iTMOV varistor’s integrated  
thermal element, in conjunction with appropriate enclosure design, helps  
facilitate TVSS module compliance to UL1449 for both cord connected  
and permanently connected applications.  
Applications  
TMOV and iTMOV varistors are compatible for use with industry standard  
wave-soldering processes or recommended hand-soldering methods.  
• TVSS Products  
• AC Panel Protection Modules  
• AC Line Power Supplies  
• Surge Protected Strip Connectors  
• AC Power Meters  
Features  
• Patent Pending Integrated Thermal Protection Device  
• Designed to facilitate compliance to UL1449 for TVSS product  
• High peak surge current rating up to 10kA  
• Wave solderable  
• Relocatable AC Power Taps  
• GFCI (Ground Fault Current Interupter)  
• UPS (Uninterruptable Power Supply)  
• White Goods  
• Standard lead form and spacing option  
• Low Leakage  
• -55°C to +85°C Operating Temperature Range  
• Three-lead version available for indication purposes.  
• Plug-in TVSS  
• Inverters  
AGENCY APPROVALS:  
CSA recognized.  
• AC/DC Power Supplies  
20mm Devices-Recognized under the components program of Underwriters  
Laboratories UL1449 and UL1414. Includes selected tests from UL1020,  
regarding thermal cutoffs for devices with voltage ratings up to 420VAC.  
14mm Devices-Devices are approved as an MOV to UL1449 and UL1414.  
Approval to selected UL1020 requirements pending. Devices (14mm and  
20mm) with ratings greater than 420VAC are not affected by these abnormal  
voltage conditions.  
Accelerated Aging Testing-14 and 20mm devices  
comply with Acclerated Aging Test requirements per. ANSI/IEEE C62.11 and  
may be used in secondary surge arrestors without repeating this test.  
Documented in UL file E75961.  
AGENCY FILE NUMBERS: ULE56529 (UL1414)  
ULE75961 (UL1449)  
CSA LR91788  
24  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
TMOV and iTMOV Varistor Series - Absolute Maximum Ratings  
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart  
TMOV / iTMOV Varistor UNITS  
Continuous:  
Steady State Applied Voltage:  
AC Voltage Range (V  
Transient:  
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 to 750  
V
M(AC)RMS  
2
Peak Pulse Current (I  
TM  
)
For 8x20µs Current Wave, single pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6000 to 10,000  
Single-Pulse Energy Capability  
A
J
For 2ms Current Wave. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 to 480  
Operating Ambient Temperature Range (T ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85oC  
A
Storage Temperature Range (T  
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 125oC  
STG  
Temperature Coefficient (αV) of Clamping Voltage (V ) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01  
%/oC  
V
V
MΩ  
C
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500  
Thermal Protection Isolation Voltage Capability (when operated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600  
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000  
Indicator Lead Rating (Lead-3 - iTMOV varistor only):  
Continuous RMS current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100  
Surge Current, 8/20µs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10,000  
mA  
A
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™  
MAXIMUM RATING (85°C)  
CONTINUOUS TRANSIENT  
PEAK SURGE  
SPECIFICATIONS (25°C)  
MAXIMUM TYPICAL  
CLAMPING CAPACI-  
VARISTOR  
VOLTAGE AT 1mA VOLTAGE  
TEST CURRENT 8/20µs  
SUPPRESSED  
VOLTAGE  
RATING  
DEVICE  
MODEL  
NUMBER  
BRAND-  
ING  
DISC  
DIA-  
METER  
AC  
VOLTS  
ENERGY  
2ms  
CURRENT  
8/20µs  
TANCE  
f = 1MHz  
UL 1449  
TABLE 60.1  
ITM ITM  
1 x PULSE 2 x PULSE  
VN(DC)  
MIN  
VN(DC)  
MAX  
VM(AC)RMS  
(V)  
W
VC  
(V)  
IPK  
(A)  
C
(pF)  
PART  
NUMBER  
TM  
(V)  
(J)  
(A)  
(A)  
(V)  
(mm)  
TMOV14R115E  
TMOV20R115E  
TMOV14R130E  
TMOV20R130E  
TMOV14R140E  
TMOV20R140E  
TMOV14R150E  
TMOV20R150E  
TMOV14R175E  
TMOV20R175E  
TMOV14R200E  
TMOV20R200E  
TMOV14R230E  
TMOV20R230E  
TMOV14R250E  
TMOV20R250E  
TMOV14R275E  
TMOV20R275E  
TMOV14R300E  
TMOV20R300E  
162  
162  
184  
184  
200  
200  
216  
216  
243  
243  
281  
281  
324  
324  
351  
351  
387  
387  
423  
300  
300  
340  
340  
360  
360  
395  
395  
455  
455  
530  
530  
595  
595  
650  
650  
710  
710  
775  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
198  
198  
226  
226  
240  
240  
264  
264  
297  
297  
344  
344  
396  
396  
429  
429  
473  
473  
517  
4T115E  
20T115E  
4T130E  
20T130E  
4T140E  
20T140E  
4T150E  
20T150E  
4T175E  
20T175E  
4T200E  
20T200E  
4T230E  
20T230E  
4T250E  
20T250E  
4T275E  
20T275E  
4T300E  
115  
115  
130  
130  
140  
140  
150  
150  
175  
175  
200  
200  
230  
230  
250  
250  
275  
275  
300  
300  
300  
400  
400  
500  
400  
500  
400  
700  
700  
700  
700  
700  
700  
800  
700  
900  
700  
900  
35  
52  
6000  
10000  
6000  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
50  
100  
50  
1100  
2400  
1000  
1900  
900  
50  
100  
55  
10000  
6000  
100  
50  
110  
60  
10000  
6000  
100  
50  
1750  
800  
120  
70  
10000  
6000  
100  
50  
1600  
700  
135  
75  
10000  
6000  
100  
50  
1400  
630  
14  
20  
14  
20  
14  
20  
14  
20  
154  
80  
10000  
6000  
100  
50  
1250  
550  
160  
100  
170  
110  
190  
125  
10000  
6000  
100  
50  
1100  
500  
10000  
6000  
100  
50  
1000  
450  
10000  
6000  
100  
50  
900  
14  
20  
400  
20T300E  
300  
900  
250  
10000  
6500  
423  
517  
775  
100  
800  
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.  
25  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Device Ratings and Specifications - TMOV Varistor Series continued...  
MAXIMUM RATING (85¡C)  
SPECIFICATIONS (25¡C)  
CONTINUOUS  
TRANSIENT  
PEAK SURGE  
MAXIMUM  
CLAMPING  
VOLTAGE  
8/20 s  
TYPICAL  
CAPACI-  
TANCE  
VARISTOR  
VOLTAGE AT 1mA  
TEST CURRENT  
SUPPRESSED  
VOLTAGE  
RATING  
DEVICE  
MODEL  
NUMBER  
BRAND-  
ING  
DISC  
DIA-  
METER  
AC  
VOLTS  
ENERGY  
2ms  
CURRENT  
8/20 s  
f = 1MHz  
UL 1449  
TABLE 60.1  
ITM  
ITM  
VN(DC)  
VN(DC)  
VM(AC)RMS  
(V)  
W
(J)  
VC  
(V)  
IPK  
(A)  
C
(pF)  
1 x PULSE 2 x PULSE  
MIN  
MAX  
PART  
NUMBER  
TM  
(V)  
(A)  
(A)  
(V)  
(mm)  
TMOV14R320E  
TMOV20R320E 20T320E  
14  
20  
14  
20  
14  
20  
20  
20  
20  
20  
20  
20  
320  
320  
385  
385  
420  
420  
460  
900  
900  
136  
273  
150  
300  
160  
320  
360  
325  
360  
375  
52  
6000  
10000  
6000  
10000  
6000  
10000  
10000  
10000  
10000  
10000  
10000  
10000  
4500  
6500  
4500  
6500  
4500  
6500  
6500  
6500  
6500  
6500  
6500  
6500  
459  
459  
558  
558  
612  
612  
675  
738  
819  
561  
561  
682  
682  
748  
748  
825  
902  
1001  
840  
840  
50  
100  
50  
100  
50  
380  
750  
360  
700  
300  
600  
200  
350  
300  
275  
250  
175  
4T320E  
TMOV14R385E  
TMOV20R385E  
TMOV14R420E  
TMOV20R420E 20T420E  
TMOV20R460E  
4T385E  
20T385E  
4T420E  
1200  
1200  
1200  
1200  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
1025  
1025  
1120  
1120  
1240  
1355  
1500  
1568  
1650  
1980  
100  
20T460E  
100  
100  
100  
100  
100  
100  
TMOV20R510E 20T510E  
TMOV20R550E 20T550E  
510  
550  
575  
625  
750  
TMOV20R575E  
TMOV20R625E 20T625E  
20T750E  
1047  
1100  
1320  
20T575E  
856  
900  
1080  
100  
TMOV20R750E  
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.  
Device Ratings and Specifications - iTMOV Varistor Series  
MAXIMUM RATING (85°C)  
SPECIFICATIONS (25°C)  
CONTINUOUS  
TRANSIENT  
PEAK SURGE  
MAXIMUM  
TYPICAL  
CAPACI-  
TANCE  
VARISTOR  
VOLTAGE AT 1mA  
TEST CURRENT  
CLAMPING  
VOLTAGE  
8/20µs  
SUPPRESSED  
VOLTAGE  
RATING  
DEVICE  
MODEL  
NUMBER  
BRAND-  
ING  
DISC  
DIA-  
METER  
AC  
VOLTS  
ENERGY  
2ms  
CURRENT  
8/20µs  
f = 1MHz  
UL 1449  
ITM ITM  
1 x PULSE 2 x PULSE  
VN(DC)  
MIN  
VN(DC)  
MAX  
TABLE 60.1  
VM(AC)RMS  
(V)  
W
VC  
(V)  
IPK  
(A)  
50  
C
PART  
NUMBER  
TM  
(V)  
300  
300  
(J)  
35  
(A)  
(A)  
(V)  
(pF)  
1100  
2400  
1000  
1900  
900  
(mm)  
162  
162  
184  
184  
200  
200  
216  
216  
243  
243  
281  
281  
324  
324  
351  
351  
387  
387  
423  
423  
198  
198  
226  
226  
240  
240  
264  
264  
297  
297  
344  
344  
396  
396  
429  
429  
473  
473  
517  
517  
4T115M  
20T115M  
4T130M  
115  
6000  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
4500  
6500  
TMOV14R115M  
TMOV20R115M  
TMOV14R130M  
300  
300  
340  
340  
360  
360  
395  
395  
455  
455  
530  
530  
595  
595  
650  
650  
710  
710  
775  
775  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
14  
20  
115  
52  
10000  
6000  
100  
50  
130  
130  
140  
140  
150  
150  
175  
175  
200  
200  
230  
230  
250  
250  
275  
275  
300  
300  
400  
400  
500  
400  
500  
400  
700  
700  
700  
700  
700  
700  
800  
700  
900  
700  
900  
900  
50  
TMOV20R130M 20T130M  
TMOV14R140M 4T140M  
TMOV20R140M 20T140M  
TMOV14R150M 4T150M  
TMOV20R150M 20T150M  
TMOV14R175M 4T175M  
TMOV20R175M 20T175M  
TMOV14R200M 4T200M  
TMOV20R200M 20T200M  
TMOV14R230M 4T230M  
TMOV20R230M 20T230M  
TMOV14R250M 4T250M  
TMOV20R250M 20T250M  
TMOV14R275M 4T275M  
TMOV20R275M 20T275M  
TMOV14R300M 4T300M  
TMOV20R300M 20T300M  
100  
55  
10000  
6000  
100  
50  
110  
60  
10000  
6000  
100  
50  
1750  
800  
120  
70  
10000  
6000  
100  
50  
1600  
700  
135  
75  
10000  
6000  
100  
50  
1400  
630  
154  
80  
10000  
6000  
100  
50  
1250  
550  
160  
100  
170  
110  
190  
125  
250  
10000  
6000  
100  
50  
1100  
500  
10000  
6000  
100  
50  
1000  
450  
10000  
6000  
100  
50  
900  
400  
10000  
100  
800  
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.  
26  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Device Ratings and Specifications - iTMOV Varistor Series continued...  
MAXIMUM RATING (85¡C)  
SPECIFICATIONS (25¡C)  
CONTINUOUS  
TRANSIENT  
PEAK SURGE  
MAXIMUM  
CLAMPING  
VOLTAGE  
8/20 s  
TYPICAL  
CAPACI-  
TANCE  
VARISTOR  
VOLTAGE AT 1mA  
TEST CURRENT  
SUPPRESSED  
VOLTAGE  
RATING  
DEVICE  
MODEL  
NUMBER  
BRAND-  
ING  
DISC  
DIA-  
METER  
AC  
VOLTS  
ENERGY  
2ms  
CURRENT  
8/20 s  
f = 1MHz  
2
UL 1449  
TABLE 60.1  
ITM  
ITM  
VN(DC)  
VN(DC)  
VM(AC)RMS  
(V)  
W
TM  
VC  
(V)  
IPK  
(A)  
50  
100  
50  
100  
50  
100  
100  
100  
C
(pF)  
1 x PULSE 2 x PULSE  
MIN  
MAX  
PART  
NUMBER  
TMOV14R320M  
(V)  
900  
900  
1200  
1200  
1200  
1200  
n/a  
n/a  
n/a  
n/a  
400  
480  
(J)  
(A)  
(A)  
(V)  
(mm)  
4T320M  
TMOV20R320M 20T320M  
14  
20  
14  
20  
14  
20  
20  
20  
20  
20  
20  
20  
320  
320  
385  
385  
420  
420  
460  
510  
550  
575  
625  
750  
136  
273  
150  
300  
160  
320  
360  
325  
360  
375  
52  
6000  
10000  
6000  
10000  
6000  
10000  
10000  
10000  
10000  
10000  
10000  
10000  
4500  
6500  
4500  
6500  
4500  
6500  
6500  
6500  
6500  
6500  
6500  
6500  
459  
459  
558  
558  
612  
612  
675  
738  
561  
561  
682  
682  
748  
748  
840  
840  
1025  
1025  
1120  
1120  
1240  
1355  
1500  
1568  
1650  
1980  
380  
750  
360  
700  
300  
600  
200  
350  
300  
275  
250  
175  
TMOV14R385M  
TMOV20R385M  
TMOV14R420M  
4T385M  
20T385M  
4T420M  
TMOV20R420M 20T420M  
TMOV20R460M 20T460M  
TMOV20R510M 20T510M  
TMOV20R550M  
20T550M  
TMOV20R575M 20T575M  
825  
902  
1001  
1047  
1100  
1320  
819  
856  
900  
100  
100  
100  
100  
20T625M  
TMOV20R750M 20T750M  
TMOV20R625M  
100  
1080  
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.  
27  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Lead Configurations  
TMOV Varistor  
iTMOV Varistor  
2
Thermal  
Fuse  
Thermal  
Fuse  
Element  
Element  
2
3
Monitor Lead  
3
MOV  
MOV  
1
2
1
Note: MOVs are non-polarized passive elements  
Line  
Line Fuse  
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.  
iTMOV Varistor  
LED  
Application Example 1 (Figure 1)  
In this case, the LED is normally on, and is off when the thermal  
element opens.  
R
Neutral  
Application Example 2 (Figure 2)  
Figure 1. Application example 1  
This circuit utilizes an optocoupler to provide galvanic isolations  
between the iTMOV varistor and the indicating or alarm circuitry.  
Line  
Application Example 3 (Figure 3)  
Line Fuse  
This circuit illustrates the use of the monitoring lead of the iTMOV  
varistor to ensure that equipment is only operated when overvoltage  
protection present. In normal operation the load switch relay solenoid is  
powered via the indicator lead of the iTMOV varistor. In the event of the  
thermal element being activated, the relay will de-activate, cutting power  
to the protected circuit and the fault LED will illuminate.  
iTMOV Varistor  
R
AC OPTOCOUPLER  
TO STATUS  
ANNUNCIATOR  
LIGHT/ALARM  
Neutral  
Figure 2. Application example 2  
Please note: Indicator circuits are provided as a guideline only.  
Verification of actual indicator circuitry is the responsibility of the end  
user. Component values selected must be appropriate for the specific  
AC line voltage service and application.  
Line  
Load Switch Relay  
(loss of protection)  
Line Fuse  
"Load Powered"  
neon lamp  
iTMOV Varistor  
Fault LED  
(Normallyoff)  
R
Neutral  
Figure 3. Application example 3  
28  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Thermal Characteristics  
10  
100  
80  
60  
40  
20  
0
Typical  
5A  
2.5A  
0.5A  
0.125A  
2
1
0.1  
10  
100  
1000  
10000  
Time  
s
-55  
50  
60  
70  
80  
90  
100  
110  
120  
130  
AMBIENT TEMPERATURE (ºC)  
* Figure 4: Typical time to open circuit under UL1449  
Abnormal Overvoltage Limited Current Test  
Figure 5: Peak Current & Energy Derating Curve  
Note : The TMOV and iTMOV varistors 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 require-  
ments). 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.  
Transient V-I Characteristic Curves  
14mm  
20mm  
10000  
10000  
1000  
100  
Maximum Clamping Voltage  
Maximum Clamping Voltage  
Maximum Leakage Current  
750V  
625V  
575V  
550V  
510V  
460V  
420V  
385V  
320V  
300V  
275V  
Maximum Leakage Current  
420V  
385V  
320V  
275V  
1000  
250V  
230V  
200V  
175V  
150V  
140V  
130V  
115V  
250V  
230V  
200V  
175V  
150V  
140V  
130V  
115V  
100  
0.000001 0.00001 0.0001 0.001 0.01 0.1  
1
10  
100 1000 10000  
0.000001 0.00001 0.0001 0.001 0.01 0.1  
1
10  
100 1000 10000  
Peak Current (A)  
Peak Current (A)  
Figure 6: V-I Characteristic Curves for 14mm Types  
Figure 7: V-I Characteristic Curves for 20mm Types  
Pulse Rating Curves  
10000  
10000  
1000  
100  
10  
1
1
10  
10  
2
102  
102  
Model 14 mm  
Model 20 mm  
104  
2
103  
103  
104  
1000  
100  
10  
105  
105  
106  
106  
∞
∞
1
1
10  
100  
1000  
10000  
10  
100  
1000  
10000  
Impulse Duration (µs)  
Impulse Duration ( µs)  
Figure 9: Pulse Rating Curves for 20mm types  
Figure 8: Pulse Rating Curves for 14mm types  
29  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Figure 10: Wave Solder Profile  
Soldering Recommendations  
Because the TMOVTM and iTMOV varistors contain a thermal protection  
device, care must be taken when soldering the devices into place. Two  
soldering methods are possible. Firstly, hand soldering: It is recommend-  
ed to heat-sink the leads of the device. Secondly, wave-soldering: It is  
critically important that all preheat stage and the solder bath tempera-  
tures are rigidly controlled. The recommended solder for the TMOV and  
iTMOV varistors is a 62/36/2 (Sn/Pb/Ag), 60/40 (Sn/Pb) or 63/37(Sn/Pb).  
Littelfuse also recommends an RMA solder flux.  
300  
250  
M A X IM U M W A V E 2 4 0 º C  
200  
150  
100  
2
PREHEAT  
50  
0
0.0  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
TIME (MINUTES)  
Ordering Information  
Standard Parts  
TMOV 20  
R
150  
E
DEVICE FAMILY  
Littelfuse Thermally Protected MOV  
DISC DIAMETER (mm)  
14 or 20mm  
CERAMIC SHAPE  
R: Round  
VM(AC)RMS  
115V to 750V  
Series Designator  
NOTE: By ordering the standard part number, i.e. TMOV20R150E, standard  
lead styles, packing and lead spacing will be supplied. These specifications are  
E: 2- Leaded TMOV Varistor Series  
Supplied in Bulk Pack with 7.5mm  
lead spacing.  
M: 3-Leaded iTMOV Varistor Series  
Supplied in Bulk Pack with 7.5mm  
lead spacing (between leads 1 & 2)  
as follows:  
• Straight Leads  
• Bulk Packed  
• 7.5mm Lead Spacing  
• Leads not in-line except parts > 420 V  
Additional Options  
Tape and Reel  
• Add suffix L2T7 to the end of standard part number (ex. TMOV20R150EL2T7)  
• Tape and Reeled parts have in-line, crimped leads. See drawings on pg 32.  
Alternative Leadstyles:  
• Contact factory for details  
30  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
General Dimensions, Bulk Pack Non-Crimped Devices  
iTMOV Varistor  
TMOV Varistor  
Model Size  
Vrms  
Model  
Voltage  
14mm  
MIN  
mm  
(in)  
20mm  
20mm  
14mm  
MAX  
SYMBOL  
MAX  
mm  
(in)  
MIN  
mm  
(in)  
MAX  
MIN  
mm  
(in)  
MIN  
mm  
(in)  
MAX  
mm  
(in)  
mm  
(in)  
mm  
(in)  
2
17.0  
22.0  
23.0  
29.0  
17.0  
22.0  
23.0  
29.0  
A
ALL  
ALL  
(0.669)  
13.5  
(0.531)  
6.5  
(0.866)  
17.0  
(0.669)  
8.5  
(0.906)  
19.0  
(0.748)  
6.5  
(1.102)  
23.0  
(0.906)  
8.5  
(0.669)  
13.5  
(0.531)  
6.5  
(0.866)  
17.0  
(0.669)  
8.5  
(0.906)  
19.0  
(0.748)  
6.5  
(1.102)  
23.0  
(0.906)  
8.5  
Dia D  
e
ALL  
(0.256)  
(0.335)  
(0.256)  
(0.335)  
(0.256)  
(0.335)  
(0.256)  
(0.335)  
1.5  
(0.059)  
2.0  
4.0  
(0.157)  
6.0  
1.5  
(0.059)  
2.0  
4.0  
(0.157)  
6.0  
(0.236)  
2.0  
1.5  
(0.059)  
2.0  
4.0  
(0.157)  
6.0  
1.5  
(0.059)  
2.0  
4.0  
(0.157)  
6.0  
(0.236)  
2.0  
115-175  
e1  
200-420  
460-750  
(0.079)  
(0.236)  
(0.079)  
(0.079)  
(0.236)  
(0.079)  
0
0
(0.079)  
(0.079)  
4.0  
(0.138)  
6.0  
(0.236)  
2.0  
(0.079)  
4.0  
(0.157)  
6.0  
(0.236)  
2.0  
(0.079)  
e2  
e3  
ALL  
ALL  
0
0
9.0  
(0.335)  
9.5  
(0.374)  
11.0  
(0.433)  
9.0  
(0.335)  
9.5  
(0.374)  
11.0  
9.0  
(0.335)  
9.5  
(0.374)  
11.0  
9.0  
(0.335)  
9.5  
(0.374)  
11.0  
115-175  
200-320  
385-460  
E
(0.433)  
(0.433)  
(0.433)  
12.0  
(0.472)  
12.0  
(0.472)  
510-575  
13.0  
(0.512)  
13.0  
(0.512)  
625-750  
ALL  
25.4  
(1.00)  
25.4  
(1.00)  
25.4  
(1.00)  
25.4  
(1.00)  
L
6.0  
(0.236)  
6.0  
(0.236)  
ALL  
L3  
0.76  
(0.030)  
0.86  
(0.034)  
0.76  
(0.030)  
0.86  
(0.034)  
0.76  
(0.030)  
0.86  
(0.034)  
0.76  
(0.030)  
0.86  
(0.034)  
115-420  
460-750  
Dia b  
0.95  
(0.037)  
1.05  
(0.041)  
0.95  
(0.037)  
1.05  
(0.041)  
Dia c  
Outside Lead  
Only  
0.76  
(0.030)  
0.86  
(0.034)  
0.76  
(0.030)  
0.86  
(0.034)  
ALL  
Dia D  
Dia D  
A
A
L
L3  
L
Dia c  
e3  
Dia b  
Dia b  
E
E
e1  
e1  
e
e
e2  
For 14mm ratings above 420 Vrms contact factory for specifications.  
31  
www. littelfuse. com  
Varistor Products  
Thermally Protected  
®
®
TMOV and iTMOV Varistor Series  
Tape and Reel Specifications - Additional Option L2T7  
TMOV varistor with outer crimp  
P
P2  
∆P  
∆P  
∆H  
∆H  
B1  
H0  
SEATING  
PLANE  
H1  
W0 W2 W1  
∅b  
∅D0  
P
t
P0  
• Reel capacity varies with voltage.  
• Leads are crimped and in-line.  
iTMOV varistor with inner crimp  
• To order tape and reel option please add suffix L2T7 to end of standard  
part number.  
• Tape and Reel option is available for rated voltages up to 420volts. Contact  
factory regarding availability of higher voltages.  
Contact Littelfuse for additional details.  
Pack Quantities  
NOTE: Tape and Reel available up to 420V only - please contact factory regarding availability  
of higher voltage parts.  
32  
www. littelfuse. com  

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