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 disconnected 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. TMOV and iTMOV varistors are compatible for use with industry standard wave-soldering processes or recommended hand-soldering methods. VARISTOR PRODUCTS 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. 2 Applications • TVSS Products • AC Panel Protection Modules Features • Patent Pending Integrated Thermal Protection Device • AC Line Power Supplies • Designed to facilitate compliance to UL1449 for TVSS product • Surge Protected Strip Connectors • High peak surge current rating up to 10kA • AC Power Meters • Wave solderable • Relocatable AC Power Taps • Standard lead form and spacing option • GFCI (Ground Fault Current Interupter) • Low Leakage • UPS (Uninterruptable Power Supply) • -55°C to +85°C Operating Temperature Range • White Goods • Three-lead version available for indication purposes. • Plug-in TVSS AGENCY APPROVALS: • Inverters Documented in UL file E75961. CSA recognized. Qualitfied to IEC-CECC for ratings from 115 - 625VAC • 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. AGENCY FILE NUMBERS: ULE56529 (UL1414) ULE75961 (UL1449) CSA LR91788 QC 42201-x001 Cert E1274/F (IEC-CECC) w w w. l i t t e l f u s e . c o m 27 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 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6000 to 10,000 Single-Pulse Energy Capability For 2ms Current Wave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 to 480 UNITS V A J Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85oC Storage Temperature Range (TSTG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 125oC 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000 %/oC V V MΩ 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 PART NUMBER TMOV14R115E TMOV20R115E TMOV14R130E TMOV20R130E TMOV14R140E TMOV20R140E TMOV14R150E TMOV20R150E TMOV14R175E TMOV20R175E TMOV14R200E TMOV20R200E TMOV14R230E TMOV20R230E TMOV14R250E TMOV20R250E TMOV14R275E TMOV20R275E TMOV14R300E TMOV20R300E DEVICE DISC MODEL DIANUMBER METER BRANDING (mm) 4T115E 14 20T115E 20 4T130E 14 20T130E 20 4T140E 14 20T140E 20 4T150E 14 20T150E 20 4T175E 14 20T175E 20 4T200E 14 20T200E 20 4T230E 14 20T230E 20 4T250E 14 20T250E 20 4T275E 14 20T275E 20 4T300E 14 20T300E 20 AC VOLTS VM(AC)RMS (V) 115 115 130 130 140 140 150 150 175 175 200 200 230 230 250 250 275 275 300 300 SPECIFICATIONS (25°C) TRANSIENT PEAK SURGE SUPPRESSED ENERGY VOLTAGE CURRENT RATING 2ms 8/20µs UL 1449 TABLE 60.1 (V) 300 300 400 400 500 400 500 400 700 700 700 700 700 700 800 700 900 700 900 900 WTM (J) 35 52 50 100 55 110 60 120 70 135 75 154 80 160 100 170 110 190 125 250 ITM ITM 1 x PULSE 2 x PULSE (A) 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 (A) 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability. 28 w w w. l i t t e l f u s e . c o m VARISTOR VOLTAGE AT 1mA TEST CURRENT VN(DC) VN(DC) MIN MAX (V) 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 MAXIMUM CLAMPING VOLTAGE 8/20µs VC (V) 300 300 340 340 360 360 395 395 455 455 530 530 595 595 650 650 710 710 775 775 IPK (A) 50 100 50 100 50 100 50 100 50 100 50 100 50 100 50 100 50 100 50 100 TYPICAL CAPACITANCE f = 1MHz C (pF) 1100 2400 1000 1900 900 1750 800 1600 700 1400 630 1250 550 1100 500 1000 450 900 400 800 Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Device Ratings and Specifications - TMOV Varistor Series continued... PART NUMBER TMOV14R320E TMOV20R320E TMOV14R385E TMOV20R385E TMOV14R420E TMOV20R420E TMOV20R460E TMOV20R510E TMOV20R550E TMOV20R575E TMOV20R625E TMOV20R750E DEVICE MODEL NUMBER BRANDING DISC DIAMETER (mm) 4T320E 20T320E 4T385E 20T385E 4T420E 20T420E 20T460E 20T510E 20T550E 20T575E 20T625E 20T750E 14 20 14 20 14 20 20 20 20 20 20 20 900 900 1200 1200 1200 1200 n/a n/a n/a n/a n/a n/a 320 320 385 385 420 420 460 510 550 575 625 750 136 273 150 300 160 320 360 325 360 375 400 480 6000 10000 6000 10000 6000 10000 10000 10000 10000 10000 10000 10000 4500 6500 4500 6500 4500 6500 6500 6500 6500 6500 6500 6500 SPECIFICATIONS (25°C) MAXIMUM VARISTOR CLAMPING VOLTAGE AT 1mA VOLTAGE TEST CURRENT 8/20µs VN(DC) VN(DC) VC IPK MIN MAX (V) (V) (A) 459 459 558 558 612 612 675 738 819 856 900 1080 561 561 682 682 748 748 825 902 1001 1047 1100 1320 840 840 1025 1025 1120 1120 1240 1355 1500 1568 1650 1980 50 100 50 100 50 100 100 100 100 100 100 100 TYPICAL CAPACITANCE f = 1MHz C (pF) 380 750 360 700 300 600 200 350 300 275 250 175 2 VARISTOR PRODUCTS MAXIMUM RATING (85°C) TRANSIENT PEAK SURGE SUPPRESSED AC ENERGY CURRENT VOLTAGE RATING VOLTS 2ms 8/20µs UL 1449 ITM ITM VM(AC)RMS TABLE 60.1 WTM 1 x PULSE 2 x PULSE (V) (V) (J) (A) (A) CONTINUOUS 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) TRANSIENT CONTINUOUS PART NUMBER TMOV14R115M TMOV20R115M TMOV14R130M TMOV20R130M TMOV14R140M TMOV20R140M TMOV14R150M TMOV20R150M TMOV14R175M TMOV20R175M TMOV14R200M TMOV20R200M TMOV14R230M TMOV20R230M TMOV14R250M TMOV20R250M TMOV14R275M TMOV20R275M TMOV14R300M TMOV20R300M DEVICE DISC MODEL DIANUMBER METER BRANDING (mm) 4T115M 14 20T115M 20 4T130M 14 20T130M 20 4T140M 14 20T140M 20 4T150M 14 20T150M 20 4T175M 14 20T175M 20 4T200M 14 20T200M 20 4T230M 14 20T230M 20 4T250M 14 20T250M 20 4T275M 14 20T275M 20 4T300M 14 20T300M 20 AC VOLTS VM(AC)RMS (V) 115 115 130 130 140 140 150 150 175 175 200 200 230 230 250 250 275 275 300 300 SUPPRESSED VOLTAGE RATING UL 1449 TABLE 60.1 (V) 300 300 400 400 500 400 500 400 700 700 700 700 700 700 800 700 900 700 900 900 ENERGY 2ms WTM (J) 35 52 50 100 55 110 60 120 70 135 75 154 80 160 100 170 110 190 125 250 PEAK SURGE CURRENT 8/20µs ITM ITM 1 x PULSE 2 x PULSE (A) 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 6000 10000 (A) 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 4500 6500 SPECIFICATIONS (25°C) MAXIMUM TYPICAL VARISTOR CLAMPING CAPACIVOLTAGE AT 1mA VOLTAGE TANCE TEST CURRENT 8/20µs f = 1MHz VN(DC) VN(DC) VC IPK C MIN MAX (V) (V) (A) (pF) 162 198 50 1100 300 162 198 300 100 2400 184 226 340 50 1000 184 226 340 100 1900 200 240 360 50 900 200 240 360 100 1750 216 264 395 50 800 216 264 395 100 1600 243 297 455 50 700 243 297 455 100 1400 281 344 530 50 630 281 344 530 100 1250 324 396 595 50 550 324 396 595 100 1100 351 429 650 50 500 351 429 650 100 1000 387 473 710 50 450 387 473 710 100 900 423 517 775 50 400 423 517 775 100 800 NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability. w w w. l i t t e l f u s e . c o m 29 Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Device Ratings and Specifications - iTMOV Varistor Series continued... MAXIMUM RATING (85°C) SPECIFICATIONS (25°C) TRANSIENT MAXIMUM TYPICAL CLAMPING PEAK SURGE VARISTOR CAPACISUPPRESSED VOLTAGE VOLTAGE CURRENT VOLTAGE AT 1mA AC ENERGY TANCE RATING 8/20µs 8/20µs VOLTS TEST CURRENT 2ms f = 1MHz UL 1449 ITM ITM VN(DC) VN(DC) VM(AC)RMS TABLE 60.1 WTM VC IPK C 1 x PULSE 2 x PULSE MIN MAX (V) (J) (V) (V) (A) (pF) (V) (A) (A) 900 320 136 459 561 840 50 380 4500 6000 900 320 273 459 561 840 100 750 6500 10000 150 360 682 385 1200 6000 558 4500 1025 50 300 682 385 1200 10000 558 6500 1025 100 700 1120 160 300 748 420 1200 6000 612 4500 50 320 600 748 420 1200 10000 612 6500 1120 100 825 200 460 10000 675 n/a 6500 1240 100 360 325 902 350 510 n/a 10000 738 6500 1355 100 360 1001 300 550 n/a 10000 819 6500 1500 100 375 275 575 n/a 10000 856 6500 1568 100 1047 10000 6500 400 1650 100 250 1100 625 900 n/a 750 n/a 480 10000 6500 1080 1320 1980 100 175 CONTINUOUS PART NUMBER TMOV14R320M TMOV20R320M TMOV14R385M TMOV20R385M TMOV14R420M TMOV20R420M TMOV20R460M TMOV20R510M TMOV20R550M TMOV20R575M TMOV20R625M TMOV20R750M DEVICE MODEL NUMBER BRANDING 4T320M 20T320M 4T385M 20T385M 4T420M 20T420M 20T460M 20T510M 20T550M 20T575M 20T625M 20T750M DISC DIAMETER (mm) 14 20 14 20 14 20 20 20 20 20 20 20 NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability. 30 w w w. l i t t e l f u s e . c o m Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Lead Configurations TMOV Varistor iTMOV Varistor 2 Thermal Fuse Element Thermal Fuse Element 3 3 1 2 MOV 2 VARISTOR PRODUCTS MOV Monitor Lead 1 Note: MOVs are non-polarized passive elements 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. To Protected Circuit Line Line Fuse 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 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 Protected Circuit Line Application Example 3 (Figure 3) TO STATUS ANNUNCIATOR LIGHT/ALARM Neutral Figure 2. Application example 2 Line Load Switch Relay (loss of protection) Line Fuse "Load Powered" neon lamp iTMOV Varistor Fault LED (Normallyoff) To Protected Circuit 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. R Neutral Figure 3. Application example 3 w w w. l i t t e l f u s e . c o m 31 Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Thermal Characteristics 10 100 Typical PERCENT OF RATED VALUE 5A 2.5A 0.5A 0.125A 1 80 60 40 20 0.1 10 100 1000 10000 0 Time s -55 * 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 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 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 5. Transient V-I Characteristic Curves 14mm 20mm 10000 10000 Maximum Clamping Voltage Maximum Clamping Voltage 750V 625V 575V 550V 510V 460V 420V 385V 320V 275V Maximum Leakage Current Clamping Voltage (V) Clamping Voltage (V) Maximum Leakage Current 1000 625V 575V 550V 510V 460V 420V 385V 320V 300V 275V 750V 1000 250V 230V 200V 175V 150V 140V 130V 115V 100 0.000001 0.00001 0.0001 0.001 0.01 0.1 1 10 100 250V 230V 200V 175V 150V 140V 130V 115V 100 0.000001 0.00001 0.0001 0.001 0.01 1000 10000 Peak Current (A) 0.1 1 10 100 1000 10000 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 1 2 10000 10 10 10 Model 20 mm 2 10 4 3 10 1000 5 10 6 10 Peak Current (A) Peak Current (A) 10 3 10 1000 1 2 Model 14 mm 102 100 ∞ 4 10 5 106 100 ∞ 10 10 1 1 10 100 1000 10 10000 100 1000 10000 Impulse Duration ( s) Impulse Duration ( s) Figure 9: Pulse Rating Curves for 20mm types Figure 8: Pulse Rating Curves for 14mm types NOTE: Average power dissipation of transients should not exceed 0.6W 32 NOTE: Average power dissipation of transients should not exceed 1.0W w w w. l i t t e l f u s e . c o m Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Soldering Recommendations Figure 10: Wave Solder Profile 300 Because the TMOV and i TMOV 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 recommended to heat-sink the leads of the device. Secondly, wave-soldering: It is critically important that all preheat stage and the solder bath temperatures are rigidly controlled. The recommended solder for the TMOV and i TMOV 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. TM M A X IM U M W A V E 2 4 0 º C TEMPERATURE (°C) 250 200 150 100 PREHEAT 2 VARISTOR PRODUCTS 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 420V NOTE: By ordering the standard part number, i.e. TMOV20R150E, standard lead styles, packing and lead spacing will be supplied. These specifications are as follows: • Straight Leads • Bulk Packed • 7.5mm Lead Spacing • Leads not in-line except parts > 420 V. See table on page 34. Series Designator 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) (Available in 20mm only) 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. This excludes the varistor lead on i TMOV devices which are not crimped and not in-line. See drawings on page 35. Alternative Leadstyles: • Contact factory for details w w w. l i t t e l f u s e . c o m 33 Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series General Dimensions, Bulk Pack Non-Crimped Devices iTMOV Varistor TMOV Varistor SYMBOL A Vrms Model Voltage ALL Dia D ALL e ALL 115-175 e1 200-420 Model Size 14mm MIN mm (in) 17.0 (0.669) 13.5 (0.531) 6.5 (0.256) 1.5 (0.059) 2.0 (0.079) 20mm MIN MAX mm mm (in) (in) 23.0 28.0 (0.906) (1.10) 19.0 23.0 (0.748) (0.906) 6.5 8.5 (0.256) (0.335) 1.5 4.0 (0.059) (0.157) 2.0 6.0 (0.079) (0.236) 2.0 0 (0.079) MAX mm (in) 22.0 (0.866) 17.0 (0.669) 8.5 (0.335) 4.0 (0.157) 6.0 (0.236) 460-750 14mm MIN MAX mm mm (in) (in) 17.0 22.0 (0.669) (0.866) 13.5 17.0 (0.531) (0.669) 6.5 8.5 (0.256) (0.335) 1.5 4.0 (0.059) (0.157) 2.0 6.0 (0.079) (0.236) e2 ALL e3 ALL 0 115-175 200-320 385-460 E 9.0 (0.335) 9.5 (0.374) 11.0 (0.433) 12.0 (0.472) 13.0 (0.512) 510-575 625-750 L ALL L3 ALL 115-420 Dia b Dia c Outside Lead Only 25.4 (1.00) 25.4 (1.00) 0.76 (0.030) 0.86 (0.034) 460-750 0.76 (0.030) 0.86 (0.034) 0.95 (0.037) 1.05 (0.041) 6.0 (0.236) 2.0 (0.079) 4.0 (0.157) 6.0 (0.236) 2.0 (0.079) 9.0 (0.335) 9.5 (0.374) 11.0 (0.433) 12.0 (0.472) 0 9.0 (0.335) 9.5 (0.374) 11.0 (0.433) 13.0 (0.512) 25.4 (1.00) 25.4 (1.00) 6.0 (0.236) 6.0 (0.236) 0.76 (0.030) 0.76 (0.030) ALL MAX mm (in) 28.0 (1.10) 23.0 (0.906) 8.5 (0.335) 4.0 (0.157) 6.0 (0.236) 2.0 (0.079) 0 4.0 (0.138) 9.0 (0.335) 9.5 (0.374) 11.0 (0.433) 20mm MIN mm (in) 23.0 (0.906) 19.0 (0.748) 6.5 (0.256) 1.5 (0.059) 2.0 (0.079) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) 0.95 (0.037) 1.05 (0.041) 0.76 (0.030) 0.86 (0.034) 0.86 (0.034) Dia D ? Dia D A A L L L3 Dia c Dia b e3 Dia b E E e e1 e1 e e2 For 14mm ratings above 420 Vrms contact factory for specifications. 34 w w w. l i t t e l f u s e . c o m Varistor Products Thermally Protected TMOV® and iTMOV® Varistor Series Tape and Reel Specifications - Additional Option L2T7 2 P P2 ∆P ∆P ∆H ∆H B1 SEATING PLANE H1 W0 W2 W1 H0 ∅b ∅D0 P P0 t iTMOV varistor with inner crimp • Reel capacity varies with voltage. • Leads are crimped and in-line. This excludes the varistor lead on i TMOV devices which are not crimped and not in-line. • 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. w w w. l i t t e l f u s e . c o m 35 VARISTOR PRODUCTS TMOV varistor with outer crimp