Metal-Oxide Varistors (MOVs) Radial Lead Varistors > TMOV and itmov Varistor Series. TMOV and itmov Varistor Series. Description

Transcription

1 TMOV and itmov Varistor Series ohs Description The Littelfuse TMOV and itmov thermally protected varistors represent a new development in integrated circuit protection. 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 overvoltage, limited current, conditions outlined in UL449. The TMOV and itmov varistor s integrated thermal element, in conjunction with appropriate enclosure design, helps facilitate SPD module compliance to UL449 for both cord connected and permanently connected applications. Agency Approvals Agency Agency Approval Agency File Number 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 overvoltage transients. UL449 QC 4220-C00, QC4220-A00, IC (Annex Q) IC 605-, IC 605-2, IC (Annex Q) /F 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. Additionally TMOV and itmov varistors are wave solderable, thus simplifying end product assembly by reducing the the expense and rework associated with hand soldering operations. Additional Information Datasheet esources Samples Features ohs compliant and Lead free available Designed to facilitate compliance to UL449 for SPD products High peak surge current rating up to 0kA Wave solderable Standard lead form and spacing option -55 C to +85 C operating temp range Three-lead version available for indication purposes Applications SPD Products AC Panel Protection Modules AC Power Supplies Surge Protected Strip Connectors AC Power Meters elocatable AC Power Taps GFCI (Ground Fault Current Interupter) UPS (Uninterruptable Power Supply) White Goods Plug-in SPD Inverters AC/DC Power Supplies

2 Absolute Maximum atings For ratings of individual members of a series, see Device atings and Specifications chart Continuous TMOV and itmov Varistor Series Units Steady State Applied Voltage: AC Voltage ange (V M(AC)MS ) 5 to 750 V Transient: Peak Pulse Current (I TM ) - For 8x20µs Current Wave, single pulse 6,000 to 0,000 A Single-Pulse nergy Capability - For 2ms Current Wave 35 to 480 J Operating Ambient Temperature ange (T A ) -55 to +85 C Storage Temperature ange (T STG ) -55 to +25 C Temperature Coefficient (αv) of Clamping Voltage (V C ) at Specified Test Current <0.0 %/ C Hi-Pot ncapsulation (COATING Isolation Voltage Capability) 2,500 V Thermal Protection Isolation Voltage Capability (when operated) 600 V COATING Insulation esistance,000 MΩ Indicator Lead ating (Lead-3 - itmov varistor only): Continuous MS current 00 ma Surge Current, 8/20µs 0,000 A CAUTION: Stresses above those listed in Absolute Maximum atings 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. atings & Specifications TMOV Lead free And ohs Compliant Models itmov Lead free and ohs Compliant Models Disc Diameter Maximum ating (85 C) Specifications (25 C) Continuous Transient Varistor Maximum Voltage at Clamping DC nergy Peak Surge ma Test Voltage Volts 2ms Current 8/20µs Current 8/20µs AC Volts Typical Capacitance f = MHz I Part Part V Branding Branding M(AC)MS V M(DC) W TM I TM 2 V N(DC) V N(DC) TM V Pulse Pulse Min Max C I PK C Number Number (mm) (V) (V) (J) (A) (A) (V) (V) (A) (pf) TMOV4P5 P4T5 TMOV4P5M P4T5M TMOV20P5 P2T5 TMOV20P5M P2T5M TMOV4P30 P4T30 TMOV4P30M P4T30M TMOV20P30 P2T30 TMOV20P30M P2T30M TMOV4P40 P4T40 TMOV4P40M P4T40M TMOV20P40 P2T40 TMOV20P40M P2T40M TMOV4P50 P4T50 TMOV4P50M P4T50M TMOV20P50 P2T50 TMOV20P50M P2T50M TMOV4P75 P4T75 TMOV4P75M P4T75M TMOV20P75 P2T75 TMOV20P75M P2T75M TMOV4P200 P4T200 TMOV4P200M P4T200M TMOV20P200 P2T200 TMOV20P200M P2T200M TMOV4P230 P4T230 TMOV4P230M P4T230M TMOV20P230 P2T230 TMOV20P230M P2T230M TMOV4P250 P4T250 TMOV4P250M P4T250M TMOV20P250 P2T250 TMOV20P250M P2T250M TMOV4P275 P4T275 TMOV4P275M P4T275M TMOV20P275 P2T275 TMOV20P275M P2T275M TMOV4P300 P4T300 TMOV4P300M P4T300M TMOV20P300 P2T300 TMOV20P300M P2T300M TMOV4P320 P4T320 TMOV4P320M P4T320M TMOV20P320 P2T320 TMOV20P320M P2T320M TMOV4P385 P4T385 TMOV4P385M P4T385M TMOV20P385 P2T385 TMOV20P385M P2T385M TMOV4P420 P4T420 TMOV4P420M P4T420M TMOV20P420 P2T420 TMOV20P420M P2T420M TMOV4P460 P4T460 TMOV4P460M P4T460M TMOV20P460 P2T460 TMOV20P460M P2T460M TMOV4P50 P4T50 TMOV4P50M P4T50M TMOV20P50 P2T50 TMOV20P50M P2T50M TMOV4P550 P4T550 TMOV4P550M P4T550M TMOV20P550 P2T550 TMOV20P550M P2T550M

3 atings & Specifications TMOV Lead free And ohs Compliant Models Thermal Characteristics itmov Lead free and ohs Compliant Models Disc Diameter Maximum ating (85 C) Continuous Transient AC Volts DC Volts nergy 2ms Peak Surge Current 8/20µs Varistor Voltage at ma Test Current Specifications (25 C) Maximum Clamping Voltage 8/20µs I Part Part V Branding Branding M(AC)MS V M(DC) W TM I TM 2 V N(DC) TM Pulse Pulse Min V Max V I N(DC) C PK C Number Number (mm) (V) (V) (J) (A) (A) (V) (V) (A) (pf) TMOV4P575 P4T575 TMOV4P575M P4T575M TMOV20P575 P2T575 TMOV20P575M P2T575M TMOV4P625 P4T625 TMOV4P625M P4T625M TMOV20P625 P2T625 TMOV20P625M P2T625M TMOV4P750 P4T750 TMOV4P750M P4T750M TMOV20P750 P2T750 TMOV20P750M P2T750M Typical Capacitance f = MHz 0 Typical 5A 2.5A 0.5A 0.25A Time(s) Figure * Figure 4: Typical time to open circuit under UL449 Note : The Abnormal TMOV Overvoltage and itmov Limited varistors Current are intended, Test in conjunction with appropriate enclosure design, to help facilitate SPD module compliance to UL 449, 3rd dition Section 39.4 (abnormal overvoltage limited current requirements). Under these extreme abnormal overvoltage conditions, some units will exhibit substantial heating, arcing and venting prior to opening. Modules should be designed to contain this possibility. Application testing is strongly recommended. Maximum Clamping Voltage for 4mm Parts Maximum Clamping Voltage for 20mm Parts Clamping Voltage (V) Maximum Leakage Current Maximum Clamping Voltage 750V 625V 575V 550V 50V 460V 420V 385V 320V 300V 275V Clamping Voltage (V) Maximum Leakage Current Maximum Clamping Voltage 625V 575V 550V 50V 460V 420V 385V 320V 300V 275V 750V 250V 230V 200V 75V 50V 40V 30V 5V Peak Current (A) Figure 3 Figure 4 Figure 6: V-I Characteristic Curves for 4mm Types 250V 230V 200V 75V 50V 40V 30V 5V Peak Current (A) Figure 7: V-I Characteristic Curves for 20mm Types

4 Metal-Oxide Varistors (MOVs) epetitive Surge Capability for 4mm Parts epetitive Surge Capability for 20mm Parts Peak Current (A) Peak Current (A) Figure 5 Impulse Duration (µs) Figure 6 Impulse Duration (μs) NOT: Average power dissipation of transients should not exceed 0.6W NOT: Average power dissipation of transients should not exceed.0w Figure 8: Pulse ating Curves for 4mm types Figure 9: Pulse ating Curves for 20mm types Wave Solder Profile Because the TMOV 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 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. Non Lead free Profile Lead free Profile Maximum Wave 240C Maximum Wave 260C TMPATU (ºC) TMPATU (ºC) Figure 7 TIM(MINUTS) Figure 8 TIM(MINUTS) Physical Specifications nvironmental Specifications Lead Material Soldering Characteristics Insulating Material Device Labeling Copper clad steel wire Solderability per MIL STD 202, Method 208 Cured, flame retardant epoxy polymer meets UL94V 0 requirements Marked with LF, voltage, UL/CSA logos, and date code Operating/Storage Temperature Humidity Aging Thermal Shock -55 C to +85 C +85 C, 85% H, 000 hours +/-0% typical voltage change +85 C to -55 C 5 times +/-0% typical voltage change Solvent esistance MIL STD 202, Method 25 Moisture Sensitivity Level, J-STD-020C

5 Lead Configurations TMOV Varistor Thermal Fuse lement itmov Varistor 2 3 Thermal Fuse lement Monitor Lead Note: MOVs are non-polarized passive elements MOV itmov Varistor Application xamples 2 3 Monitor Lead The application examples below show how the indicator lead on the itmov Figure. Application varistor example 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. Application xample In this case, the LD is normally on, and is off when the thermal element opens. Figure. Application example Application xample 2 LD This circuit utilizes an optocoupler to provide galvanic isolations between the itmov varistor Figure. Application example and the indicating itmov or Varistor alarm circuitry. Figure 2. Application example 2 Figure 2. Application example 2 Figure 3. Application example 3 LD Fault LD (Normallyoff) Fault LD (Normallyoff) AC OPTOCOUPL AC OPTOCOUPL TO STATUS ANNUNCIATO LIGHT/ALAM TO STATUS ANNUNCIATO Load Switch LIGHT/ALAM elay (loss of protection) Load Switch elay (loss of protection) "Load Powered" neon lamp "Load Powered" neon lamp To Protected Circuit To Protected Circuit To Protected Circuit To Protected Circuit To Protected Circuit To Protected Circuit Application xample 3 MOV This circuit illustrates the use of the monitoring lead of the itmov itmov varistor Varistor to ensure that equipment is only operated when overvoltage protection AC OPTOCOUPL present. In normal operation the load switch relay solenoid is powered TO STATUS via the indicator lead of the itmov ANNUNCIATO varistor. In the LIGHT/ALAM event of the thermal element being activated, the relay will de-activate, cutting Figure power 2. Application to the example protected 2 circuit and the fault LD will illuminate. Figure 3. Application example 3 LD Fault LD (Normallyoff) Load Switch elay (loss of protection) "Load Powered" neon lamp 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. To Protected Circuit To Protected Circuit To Protected Circuit

6 Device Dimensions Straight Lead Forms TMOV itmov Dia D Dia D Curved Lead Forms TMOV (outer crimp) Dia D itmov (inner crimp) Dia D A A L L3 Dia c e3 Monitor Lead Seating Plane L L3 Dia c e3 Monitor Lead e e e e e2 e e e e e2 Dimension V MS Voltage Model TMOV Varistor itmov Varistor A Straight Lead A Crimped Lead Min. 4mm Size 20mm Size 4mm Size 20mm Size Max. Min. Max. Min. Max. Min. Max. ALL 7.0 (0.669) 22.0 (0.866) 23.0 (0.906) 28.0 (.0) 7.0 (0.669) 22.0 (0.866) 23.0 (0.906) 28.0 (.0) ALL (0.886) (.22) (0.886) (.22) Dia D ALL 3.5 (0.53) 7.0 (0.669) 9.0 (0.748) 23.0 (0.906) 3.5 (0.53) 7.0 (0.669) 9.0 (0.748) 23.0 (0.906) e ALL 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) e Bulk Pack e Tape & eel and In- Lead (0.059) 4.0 (0.57).5 (0.059) 4.0 (0.57).5 (0.059) 4.0 (0.57).5 (0.059) 4.0 (0.57) (0.079) 4.5 (0.77) 2.0 (0.079) 4.5 (0.77) 2.0 (0.079) 4.5 (0.77) 2.0 (0.079) 4.5 (0.77) (0.8) 5.5 (0.27) 3.0 (0.8) 5.5 (0.27) 3.0 (0.8) 5.5 (0.27) 3.0 (0.8) 5.5 (0.27) (0.079) (0.079) (0.079) (0.079) (0.079) (0.079) (0.079) (0.079) * (0.079) (0.079) (0.079) (0.079) e2 ALL n/a n/a n/a n/a 4.0 (0.38) 6.0 (0.236) 4.0 (0.57) 6.0 (0.236) e3 ALL n/a n/a n/a n/a (0.079) (0.079) (0.335) (0.335) (0.335) (0.335) (0.374) (0.374) (0.374) (0.374) (0.433) --.0 (0.433) --.0 (0.433) --.0 (0.433) (0.472) (0.472) (0.472) (0.472) (0.52) (0.52) (0.52) (0.52) L ALL 25.4 (.00) (.00) (.00) (.00) -- L3 ALL n/a n/a n/a n/a 6.0 (0.236) (0.236) (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) (0.030) 0.86 (0.034) 0.95 (0.037).05 (0.04) 0.76 (0.030) 0.86 (0.034) 0.95 (0.037).05 (0.04) Dia c Outside Lead Only ALL n/a n/a n/a n/a 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) NOTS: * Tape and eel packaging option is available only for devices up to 420Vrms.

7 Tape and eel Specification itmov VAISTO WITH INN CIMP TMOV VAISTO WITH OUT CIMP P P P2 P2 B B H SATING PLAN C H SATING PLAN C W0 W2 W W0 W2 W H0 Øb H0 Øb W W ØD0 ØD0 P P0 F t P P0 F t itmov VAISTO WITH STAIGHT LADS TMOV VAISTO WITH STAIGHT LADS P P P2 P2 H H H W0 W2 W H W0 W2 W L Øb L Øb W W ØD0 ØD0 P P0 F t P P0 F t CIMPD LADS STAIGHT LADS DSCIPTION MODL SIZ MODL SIZ 4mm 20mm 4mm 20mm B Component Top to Seating Plane 22.5 Max 3 Max 22.0 Max 28.0 Max P Pitch of Component / / ± ±.0 P 0 Feed Hole Pitch 2.7 +/ / ± ±0.2 P Feed Hole Center to Pitch / / ± ±0.7 P 2 Hole Center to Component Center 2.7 +/ / ± ±0.7 F Lead to Lead Distance 7.5 +/ / ± ±0.8 Δh Component Alignment 2.0 Max 2.0 Max 2.0 Max 2.0 Max W Tape Width / / / /-0.5 W 0 Hold Down Tape Width 2.0 +/ / ± ±0.3 W Hole Position / / / /-0.5 W 2 Hold Down Tape Position 0.5 Max 0.5 Max 0.5 Max 0.5 Max H Height from Tape Centre to Component Base (non-crimped parts) / /-0 H 0 Seating Plane Height (crimped parts only) 6.0 +/ / H Component Height 40.0 Max 46.5 Max 40.0 Max 46.5 Max C Crimp Length (crimped parts only) 2.6 typ 2.6 typ D 0 Feed Hole Diameter 4.0 +/ / ± ±0.2 t Total Tape Thickness 0.7 +/ / ± ±0.2 L Length of Clipped Lead.0 Max.0 Max.0 Max.0 Max Δp Component Alignment 3 Max..00mm 3 Max 3 deg Max,.0mm Max 3 deg Max,.0mm Max NOTS: Dimensions in mm eel capacity varies with voltage. Leads are crimped and in-line. This excludes the monitor lead on itmov varistor 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 420V. Contact factory regarding availability of higher voltages. Contact Littelfuse for additional details.

8 Part Numbering System Base Part Codes (See ratings & specifications tables and notes below) DVIC FAMILY Littelfuse Thermally Protected MOV DISC DIAMT (mm) 4 or 20mm CAMIC SHAP : ound LAD-F/oHS COMPLIANT INDICATO V M(AC)MS 5V to 750V TMOV 20 P 50 SIS DSIGNATO : TMOV (2-Leaded, without indicator lead) M: itmov (3-Leaded, with indicator lead option) NOTS: Option Codes (See below) XXXXX NON-STANDAD LAD FOM, PACKAGING and LAD SPACING OPTIONS : L2B7: Lead Form: Crimped and In- 2 Leads Packaging: Bulk Pack Lead Spacing 3 : 7.5mm L2T7: L3T7: Lead Form: Crimped and In- 2 Leads Packaging: Tape and eel 4 Lead Spacing 3 : 7.5mm Lead Form: Straight Leads and In- 2 Leads Packing: Tape and eel Lead Spacing: 7.5mm Other non-standard options may be available - please contact Littelfuse. Use Base Part Code only to receive standard product: Lead Form: Straight Leads. Devices greater than 420Vrms are provided In- 2. Packaging: Bulk Pack Lead Spacing: 7.5mm +/-.0mm 2 In- refers to straight row of leads at the tip where product is to contact the circuit board. efer to e in Device Dimensions section. 3 Lead Spacing refers to span between leads as e dimension in Device Dimensions section. 4 Due to device bulk, tape and reel packaging option is available only for devices up to 420Vrms Pack Quantities Pack Quantities ated Bulk Pack Tape and eel Voltage Model Size Model Size 4mm 20mm 4mm 20mm n/a n/a NOT: Tape and eel available up to 420V only - please contact factory regarding availability of higher voltage parts.