495-77283-KIT

ThermoFuse Varistor Series/Type: Ordering code: NT20* B72220*** Date: Version: 2017-05-15 a Content of header bars 1 and 2 of data sheet will be automatically entered in headers and footers! Please fill in the table and then change the color to "white". This ensures that the table disappears (invisible) for the customer PDF. Don't change formatting when entering or pasting text in the table and don't add any cell or line in and to it! Identification/Classification 1 (header 1 + top left header bar): Identification/Classification 2 (header 2 + bottom left header bar): Ordering code: (top right header bar) Series/Type: (top right header bar) Preliminary data (optional): Department: Date: Version: Prepared by: Release signed PD: Release signed QS: Release signed PT: Modifications/Remarks: ThermoFuse Varistor B72220*** NT20* PPD VAR PD 2017-05-15 a Rongguang Zhang Dr. Wen Yang Mac Gao Levi Li New issue  EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. EPCOS AG is a TDK Group Company. ThermoFuse Varistor B72220*** NT20* Construction


Round varistor element, leaded Coating: epoxy resin, flame-retardant to UL 94 V-0 Terminals: tinned copper wire, metal compound wire Features


Wide operating voltage range 130 … 750VRMS Self-protected under abnormal overvoltage conditions High-energy AdvanceD series E2 Applications






Inverters in solar power systems Houshold appliances Power supply units Inverters in solar power systems Lighting applications Communication and data systems Transient voltage surge suppressors (TVSS) Electronic metering General technical data Climatic category Operating temperature Storage temperature Electric strength Insulation resistance Response time to IEC 60068-1 40/85/56 -40…+85 -40... +85 ≥2.5 ≥100 < 25 °C °C kVRMS MΩ Ω ns Nomenclature NT 20 = = Series designation Rated disk diameter (mm) K *** E2 S5 K4 = = = = = Tolerance of VV at 1 mA: ±10% Max. AC voltage Energy absorption characteristics, AdvanceD series Crimp design S5 2 pins version PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 2 of 16 ThermoFuse Varistor Dimensional drawing in mm Straight leads B72220*** NT20* Crimp leads NT20K***K4 *K4 *S5K4 Typical applications PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 3 of 16 ThermoFuse Varistor B72220*** NT20* Dimension Ordering code Type （untaped） -SIOV B72220W2131K101 NT20K130E2 B72220R2131K101 NT20K130E2K4 B72220W2141K101 NT20K140E2 B72220R2141K101 NT20K140E2K4 B72220W2151K101 NT20K150E2 B72220R2151K101 NT20K150E2K4 B72220W2171K101 NT20K175E2 B72220R2171K101 NT20K175E2K4 B72220W2211K101 NT20K210E2 B72220R2211K101 NT20K210E2K4 B72220W2251K101 NT20K250E2 B72220R2251K101 NT20K250E2K4 B72220W2271K101 NT20K275E2 B72220R2271K101 NT20K275E2K4 B72220W2301K101 NT20K300E2 B72220R2301K101 NT20K300E2K4 B72220W2321K101 NT20K320E2 B72220R2321K101 NT20K320E2K4 B72220W2351K101 NT20K350E2 B72220R2351K101 NT20K350E2K4 B72220W2381K101 NT20K385E2 B72220R2381K101 NT20K385E2K4 B72220W2421K101 NT20K420E2 B72220R2421K101 NT20K420E2K4 B72220W2461K101 NT20K460E2 B72220R2461K101 NT20K460E2K4 B72220W2511K101 NT20K510E2 B72220R2511K101 NT20K510E2K4 B72220W2551K101 NT20K550E2 B72220R2551K101 NT20K550E2K4 B72220W2621K101 NT20K625E2 B72220R2621K101 NT20K625E2K4 B72220W2681K101 NT20K680E2 B72220R2681K101 NT20K680E2K4 B72220W2751K101 NT20K750E2 B72220R2751K101 NT20K750E2K4 bmax hmax smax e ±1 e1 ±1 e2 ±1 e3 ±1 Lmin L1min mm 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 mm 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 28 mm mm 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 mm 2.6 2.6 2.7 2.7 2.8 2.8 2.8 2.8 2.9 2.9 3.1 3.1 3.2 3.2 3.3 3.3 3.5 3.5 3.7 3.7 4.0 4.0 4.2 4.2 4.4 4.4 4.5 4.5 4.7 4.7 5.0 5.0 5.5 5.5 6.0 6.0 mm 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / mm 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / mm 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 mm 6 / 6 / 6 / 6 / 6 / 6 / 6 6 / 6 / 6 / 6 / 6 / 6 / 6 6 / 6 / 6 / 6 / 6 / 9.0 9.5 11.0 12.0 13.0 PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. φd ± 0.05 mm 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 φd1 ± 0.05 mm 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2017-05-15 Page 4 of 16 ThermoFuse Varistor Ordering code Type （untaped） -SIOV B72220W2131K501 NT20K130E2S5 B72220R2131K501 NT20K130E2S5K4 B72220W2141K501 NT20K140E2S5 B72220R2141K501 NT20K140E2S5K4 B72220W2151K501 NT20K150E2S5 B72220R2151K501 NT20K150E2S5K4 B72220W2171K501 NT20K175E2S5 B72220R2171K501 NT20K175E2S5K4 B72220W2211K501 NT20K210E2S5 B72220R2211K501 NT20K210E2S5K4 B72220W2251K501 NT20K250E2S5 B72220R2251K501 NT20K250E2S5K4 B72220W2271K501 NT20K275E2S5 B72220R2271K501 NT20K275E2S5K4 B72220W2301K501 NT20K300E2S5 B72220R2301K501 NT20K300E2S5K4 B72220W2321K501 NT20K320E2S5 B72220R2321K501 NT20K320E2S5K4 B72220W2351K501 NT20K350E2S5 B72220R2351K501 NT20K350E2S5K4 B72220W2381K501 NT20K385E2S5 B72220R2381K501 NT20K385E2S5K4 B72220W2421K501 NT20K420E2S5 B72220R2421K501 NT20K420E2S5K4 B72220W2461K501 NT20K460E2S5 B72220R2461K501 NT20K460E2S5K4 B72220W2511K501 NT20K510E2S5 B72220R2511K501 NT20K510E2S5K4 B72220W2551K501 NT20K550E2S5 B72220R2551K501 NT20K550E2S5K4 B72220W2621K501 NT20K625E2S5 B72220R2621K501 NT20K625E2S5K4 B72220W2681K501 NT20K680E2S5 B72220R2681K501 NT20K680E2S5K4 B72220W2751K501 NT20K750E2S5 B72220R2751K501 NT20K750E2S5K4 B72220*** NT20* bmax hmax smax e ±1 e1 ±1 e2 ±1 e3 ±1 Lmin L1min mm 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 mm 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 mm mm 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 mm 2.6 2.6 2.7 2.7 2.8 2.8 2.8 2.8 2.9 2.9 3.1 3.1 3.2 3.2 3.3 3.3 3.5 3.5 3.7 3.7 4.0 4.0 4.2 4.2 4.4 4.4 4.5 4.5 4.7 4.7 5.0 5.0 5.5 5.5 6.0 6.0 mm 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / 5 / mm 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / 1 / mm 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 mm 6 / 6 / 6 / 6 / 6 / 6 / 6 6 / 6 / 6 / 6 / 6 / 6 / 6 6 / 6 / 6 / 6 / 6 / 9.0 9.5 11.0 12.0 13.0 PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. φd ± 0.05 mm 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 φd1 ± 0.05 mm 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 2017-05-15 Page 5 of 16 ThermoFuse Varistor B72220*** NT20* Electrical data Maximum ratings (85 °C): Type （untaped） -SIOV NT20K130E2* NT20K140E2* NT20K150E2* NT20K175E2* NT20K210E2* NT20K250E2* NT20K275E2* NT20K300E2* NT20K320E2* NT20K350E2* NT20K385E2* NT20K420E2* NT20K460E2* NT20K510E2* NT20K550E2* NT20K625E2* NT20K680E2* NT20K750E2* VRMS VDC imax (8/20 µs) V 130 140 150 175 210 250 275 300 320 350 385 420 460 510 550 625 680 750 V 170 180 200 225 270 320 350 385 420 460 505 560 615 670 745 825 895 1060 A 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 1) In (8/20 µs) 15 times A 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 5000 3000 W max (2 ms) Pmax J 100 110 120 135 160 195 215 250 273 200 273 273 300 325 360 400 440 480 W 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 *May be suffix S5, K4 th 1) Note: nominal discharge current is the specification defined in UL1449 4 and tested with 8/20µs current waveform. PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 6 of 16 ThermoFuse Varistor B72220*** NT20* Characteristics (25 °C): VV (1 mA) V △Vv (1 mA ) % Vc,max ic V ic NT20K130E2* 205 10 340 100 NT20K140E2* 220 10 360 100 NT20K150E2* 240 10 395 100 Type NT20K175E2* 270 10 455 100 NT20K210E2* 330 10 545 100 NT20K250E2* 390 10 650 100 NT20K275E2* 430 10 710 100 NT20K300E2* 470 10 775 100 Ctyp 1 kHz pF 1850 1700 1550 1350 1100 940 850 780 NT20K320E2* 510 10 840 100 720 NT20K350E2* 560 10 910 100 660 NT20K385E2* 620 10 1025 100 600 NT20K420E2* 680 10 1120 100 550 NT20K460E2* 750 10 1240 100 500 NT20K510E2* 820 10 1355 100 460 NT20K550E2* 910 10 1500 100 410 NT20K625E2* 1000 10 1650 100 380 NT20K680E2* 1100 10 1815 100 340 NT20K750E2* 1200 10 2000 100 250 PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. A 2017-05-15 Page 7 of 16 ThermoFuse Varistor B72220*** NT20* Reliability Data Electrical Test Test methods Requirement Varistor voltage The voltage between two terminals with the specified measuring current applied is called Vv (1 mADC @ 0.2 … 2 s). To meet the specified value. Clamping voltage The maximum voltage between two terminals with the specified standard impulse current (8/20 µs) illustrated below applied. To meet the specified value. Peak Leading Edge Trailing Edge TS Tr O1 Im Rise Time µs Decay time to half value µs Nominal start Peak value Surge current derating, 8/20 µs 10 surge currents (8/20 µs), unipolar, interval 30 s, amplitude corresponding to derating curve for 10 impulses at 20 µs |V/V (1 mA)| ≤10% (measured in direction of surge current) No visible damage Surge current derating, 2 ms 10 surge currents (2ms), unipolar, interval 120s, amplitude corresponding to derating curve for 10 impulses at 2 ms |V/V (1 mA)|≤10% (measured in direction of surge current) No visible damage PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 8 of 16 ThermoFuse Varistor B72220*** NT20* Test Test Methods/Description Requirement Abnormal over voltage This device is designed to form open circuit in the event of overheating due to the limited current abnormal over voltage th conditions as outlined in section 44.4 of UL1449 4 edition. The device (pin 1 & 3) is to be connected to a power supply having an open circuit voltage equal to the test voltage specified below. The power supply is to incorporate a series variable resistor that can be adjusted to obtain the short-circuit current (Isc). The variable resistor is to be adjusted such that Isc equals 5A, 2.5A, 0.5A or 0.125A respectively (measured without the device in the circuit). The device will be energized for 7 hours, or until the device becomes disconnected from the power supply, or until current to, or temperature within the 3) device attains equilibrium . The test result will be visually inspected. Detailed test voltages applied onto the devices are as in the following table: Any of below phenomena shall not be observed, otherwise this device will be judged as failed part: 1. Emission of flame, molten metal, glowing or flaming particles through any openings (pre-existed or created as a result of the test) in the device. 2. Charring, glowing, or flaming of the supporting surface, or cheesecloth draped on the device. 3. Ignition of the enclosure. 4. Creation of any openings in the enclosure that result in accessibility of live parts. Type Device rating Test voltage ( V ac) ( V ac ) NT20K130E2* 130 240 NT20K140E2* 140 240 NT20K150E2* 150 240 NT20K175E2* 175 240 NT20K210E2* 210 240 NT20K250E2* 250 480 NT20K275E2* 275 480 NT20K300E2* 300 480 NT20K320E2* 320 480 NT20K350E2* 350 600 NT20K385E2* 385 600 NT20K420E2* 420 690 NT20K460E2* 460 690 NT20K510E2* 510 1000 NT20K550E2* 550 1000 NT20K625E2* 625 1000 NT20K680E2* 680 1000 NT20K750E2* 750 1000 Note: 3) Thermal fuse may not form open circuit under low current [e.g. 0.125A] due to less heat generated by MOV, however the device will reach thermal equilibrium within 30 minutes under a low temperature which will not be able to cause any damage to the device. PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 9 of 16 ThermoFuse Varistor B72220*** NT20* v/i characteristic A = Leakage current, B = Protection level } for worst-case varistor tolerances A B PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 10 of 16 ThermoFuse Varistor B72220*** NT20* Derating curves Suitable for 130 -320 NT20K130…320E2 100000 imax. tr 10000 1x 2x 15 x 10^2 x 10^3 x 10^4 x 10^5 x 10^6 x inf. I max [A] 1000 100 10 1 0.1 10 100 1000 10000 t r [μs] Suitable for 350 -680 NT20K350…680E2 100000 imax. tr 10000 1x 2x 15 x 10^2 x 10^3 x 10^4 x 10^5 x 10^6 x inf. I max [A] 1000 100 10 1 0.1 10 100 1000 10000 t r [μs] PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 11 of 16 ThermoFuse Varistor B72220*** NT20* Suitable for 750 NT20K750E2 100000 imax. tr 10000 1x 2x 15 x I max [A] 1000 10^2 x 10^3 x 10^4 x 10^5 x 10^6 x inf. 100 10 1 0.1 10 100 1000 10000 t r [μs] PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 12 of 16 ThermoFuse Varistor B72220*** NT20* 1 Soldering instructions only for NT series 1.1 Manual soldering Maximum soldering temperature 350 °C for 3 s. It is recommended to heat sink the lead wires of the ThermoFuse varistors (NT series). 1.2 Wave soldering Recommended temperature profile for wave soldering only for ThermoFuse varistors (NT series). Important note: Temperatures of all preheat stages and the solder bath must be strictly controlled. Housed vas T20 series PPD VAR PD Please read Cautions and warnings and Important notes at the end of this document. 2017-05-15 Page 13 of 16 ThermoFuse Varistor B72220*** NT20* Cautions and warnings General 1. EPCOS metal oxide varistors (SIOVs) are designed for specific applications and should not be used for purposes not identified in our specifications, application notes and data books unless otherwise agreed with EPCOS during the design-in-phase. 2. Ensure suitability of SIOVs through reliability testing during the design-in phase. The SIOVs should be evaluated taking into consideration worst-case conditions. 3. For applications of SIOVs in line-to ground circuits based on various international and local standards there are restrictions existing or additional safety measures required. Storage 1. Store SIOVs only in original packaging. Do not open the package before storage. 2. Storage conditions in original packaging: Storage temperature: Relative humidity: Dew precipitation: -25 °C … +45 °C