Varistor Products Radial Lead Varistors > TMOV and itmov Series

Transcription

1 RoHS 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 Approval UL44 UL449 QC 4220-C00, QC4220-A00, IC (Annex Q) IC 605-, IC 605-2, IC (Annex Q) Agency File Number /F 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. 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. Features RoHS compliant and Lead free available Patented integrated thermal protection device - Patent #US Designed to facilitate compliance to UL449 3nd dition for SPD product High peak surge current rating up to 0kA Wave solderable Standard lead form and spacing option Low leakage -55 C to +85 C operating temp range Three-lead version available for indication purposes TMOV /itmov Series Applications SPD Products AC Panel Protection Modules AC Line Power Supplies Surge Protected Strip Connectors AC Power Meters Relocatable 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 Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous TMOV and itmov Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS ) 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 Range (T A ) -55 to +85 C Storage Temperature Range (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 Resistance,000 MΩ Indicator Lead Rating (Lead-3 - itmov varistor only): Continuous RMS current ma Surge Current, 8/20µs 0,000 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. TMOV and itmov Ratings & Specifications TMOV Lead free And RoHS Compliant Models itmov Lead free and RoHS Compliant Models Disc Diameter Maximum Rating (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)RMS 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) TMOV4RP5 P4T5 TMOV4RP5M P4T5M TMOV20RP5 P2T5 TMOV20RP5M P2T5M TMOV4RP30 P4T30 TMOV4RP30M P4T30M TMOV20RP30 P2T30 TMOV20RP30M P2T30M TMOV4RP40 P4T40 TMOV4RP40M P4T40M TMOV20RP40 P2T40 TMOV20RP40M P2T40M TMOV4RP50 P4T50 TMOV4RP50M P4T50M TMOV20RP50 P2T50 TMOV20RP50M P2T50M TMOV4RP75 P4T75 TMOV4RP75M P4T75M TMOV20RP75 P2T75 TMOV20RP75M P2T75M TMOV4RP200 P4T200 TMOV4RP200M P4T200M TMOV20RP200 P2T200 TMOV20RP200M P2T200M TMOV4RP230 P4T230 TMOV4RP230M P4T230M TMOV20RP230 P2T230 TMOV20RP230M P2T230M TMOV4RP250 P4T250 TMOV4RP250M P4T250M TMOV20RP250 P2T250 TMOV20RP250M P2T250M TMOV4RP275 P4T275 TMOV4RP275M P4T275M TMOV20RP275 P2T275 TMOV20RP275M P2T275M TMOV4RP300 P4T300 TMOV4RP300M P4T300M TMOV20RP300 P2T300 TMOV20RP300M P2T300M TMOV4RP320 P4T320 TMOV4RP320M P4T320M TMOV20RP320 P2T320 TMOV20RP320M P2T320M TMOV4RP385 P4T385 TMOV4RP385M P4T385M TMOV20RP385 P2T385 TMOV20RP385M P2T385M TMOV4RP420 P4T420 TMOV4RP420M P4T420M TMOV20RP420 P2T420 TMOV20RP420M P2T420M TMOV20RP460 P2T460 TMOV20RP460M P2T460M TMOV20RP50 P2T50 TMOV20RP50M P2T50M TMOV20RP550 P2T550 TMOV20RP550M P2T550M TMOV20RP575 P2T575 TMOV20RP575M P2T575M TMOV20RP625 P2T625 TMOV20RP625M P2T625M TMOV20RP750 P2T750 TMOV20RP750M P2T750M NOT: For 4mm devices with a voltage rating greater than 420V, please contact factory regarding availability.

3 Thermal Characteristics Current, nergy, Power Derating Curve 0 Typical 5A 2.5A 0.5A 0.25A PRCNT OF RATD VALU Time(s) Figure Figure AMBINT TMPRATUR (ºC) Note : The TMOV and itmov varistors are intended, 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 Clamping Voltage (V) mm Maximum Clamping Voltage 750V Maximum Leakage Current 625V 575V 550V 50V 460V 420V 385V 320V 300V 275V For applications exceeding 85 C ambient temperature, the peak surge current and energy ratings must be reduced as shown above. Maximum Clamping Voltage for 20mm Parts Clamping Voltage (V) 00 0 Maximum Leakage Current 625V 575V 750V 550V 50V 460V 420V 385V 320V 300V 275V 20mm Maximum Clamping Voltage TMOV /itmov Series 250V 230V 200V 75V 50V 40V 30V 5V Peak Current (A) Figure 3 Figure 4 250V 230V 200V 75V 50V 40V 30V 5V Peak Current (A)

4 Repetitive Surge Capability for 4mm Parts Repetitive Surge Capability for 20mm Parts Model 4 mm Model 20 mm Peak Current (A) 0 6 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 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 TMPRATUR (ºC) TMPRATUR (ºC) Figure 7 TIM(MINUTS) Figure 8 TIM(MINUTS) Physical Specifications nvironmental Specifications Lead Material Soldering Characteristics Insulating Material Non Lead free parts: Solder coated Copper wire, or Tin coated Copper wire Lead free parts: Tin coated Copper wire Solderability per MIL STD 202, Method 208 Cured, flame retardant epoxy polymer meets UL94V 0 requirements Operating/Storage Temperature Passive Aging Humidity Aging -40 C to +85 C +85 C, 0 hours +/-0% typical voltage change +85 C, 85% RH, 0 hours +/-0% typical voltage change Device Labeling Marked with LF, voltage, UL/CSA logos, and date code Thermal Shock +85 C to -40 C 5 times +/-0% typical voltage change Solvent Resistance MIL STD 202, Method 25F Moisture Sensitivity Level, J STD 020C

5 Lead Configurations TMOV Varistor Thermal Fuse lement itmov Varistor 2 3 Thermal Fuse lement Monitor Lead MOV 3 MOV 2 Note: MOVs are non-polarized passive elements Monitor Lead itmov Varistor Application xamples 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. Application xample Application xample 3 In this case, the LD is normally on, and is off when the thermal element opens. Line Line Fuse Neutral itmov Varistor Application xample 2 LD This circuit utilizes an optocoupler to provide galvanic isolations between the itmov varistor and the indicating or alarm circuitry. Line Line Fuse Neutral itmov Varistor R R AC OPTOCOUPLR TO STATUS ANNUNCIATOR LIGHT/ALARM To Protected Circuit To Protected Circuit 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 LD will illuminate. Line Line Fuse Neutral itmov Varistor e 3. Application example 3 Fault LD (Normallyoff) Load Switch Relay (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. R To Protected Circuit TMOV /itmov Series

6 Device Dimensions Straight Lead Forms TMOV itmov TMOV (outer crimp) Curved Lead Forms itmov (inner crimp) Dia D Dia D Dia D Dia D A A L L3 Dia c e3 Monitor Lead Seating Plane L L3 Dia c e3 Monitor Lead e e e e e e e e e2 e2 Dimension V RMS 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 & Reel and In-Line 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) n/a n/a (0.079) n/a n/a (0.079) (0.079) (0.079) (0.079) (0.079) * n/a n/a (0.079) n/a n/a (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) n/a (0.472) -- n/a (0.472) n/a (0.52) -- n/a (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) n/a n/a 0.95 (0.037).05 (0.04) n/a n/a 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: For 4mm ratings above 420 V RMS contact factory for specifications. * Items above 550 V RMS are not available packaged as tape and reel (bulk pack only)

7 Tape and Reel Specification TMOV VARISTOR WITH OUTR CRIMP Reel capacity varies with voltage. Leads are crimped and in-line. This excludes the monitor lead on itmov 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 420V. Contact factory regarding availability of higher voltages. Contact Littelfuse for additional details. B DSCRIPTION Component Top to Seating Plane MODL SIZ 4mm 20mm 22.5 Max 3 Max P Pitch of Component / /-.0 P 0 Feed Hole Pitch 2.7 +/ /- 0.2 P P 2 Feed Hole Center to Pitch Hole Center to Component Center / / / /- 0.7 F Lead to Lead Distance 7.5 +/ /- 0.8 H B H0 itmov VARISTOR WITH INNR CRIMP SATING PLAN D0 P2 P P0 b P DP C F DP DH t DH W0 W2 W W Δh Component Alignment 2.0 Max 2.0 Max W Tape Width / /-0.5 W 0 Hold Down Tape Width 2.0 +/ /- 0.3 W Hole Position / /-0.50 W 2 Hold Down Tape Position 0.5 Max 0.5 Max H Component Height 40.0 Max 46.5 Max 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 Δp Component Alignment 3 Max..00mm 3 Max C Crimp Length 2.6 typ 2.6 typ H 0 Seating Plane Height 6.0 +/ /- 0.5 TMOV /itmov Series Dimensions in mm

8 Part Numbering System Base Part Codes (See ratings & specifications tables and notes below) DVIC FAMILY Littelfuse Thermally Protected MOV TMOV 20 R P 50 DISC DIAMTR (mm) 4 or 20mm CRAMIC SHAP R: Round LAD-FR/RoHS COMPLIANT INDICATOR V M(AC)RMS 5V to 750V SRIS DSIGNATOR : TMOV (2-Leaded, without indicator lead) M: itmov (3-Leaded, with indicator lead option) Option Codes (See below) XXXXX NON-STANDARD LAD FORM, PACKAGING and LAD SPACING OPTIONS : L2B7: Lead Form: Crimped and In-Line 2 Leads Packaging: Bulk Pack Lead Spacing 3 : 7.5mm L2T7: Lead Form: Crimped and In-Line 2 Leads Packaging: Tape and Reel 4 Lead Spacing 3 : 7.5mm Other non-standard options may be available - please contact Littelfuse. NOTS: Use Base Part Code only to receive standard product: Lead Form: Straight Leads. Devices greater than 420Vrms are provided In-Line 2. Packaging: Bulk Pack Lead Spacing: 7.5mm +/-.0mm 2 In-Line refers to straight row of leads at the tip where product is to contact the circuit board. Refer 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 Rated Bulk Pack Tape and Reel Voltage Model Size Model Size 4mm 20mm 4mm 20mm n/a n/a NOT: Tape and Reel available up to 420V only - please contact factory regarding availability of higher voltage parts.