Samples. Continuous MA Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS. ) 9 to 264 V DC Voltage Range (V M(DC)

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Axial ead / Application Specific Varistors > MA Series MA Varistor Series RoHS Description The MA Series of transient surge suppressors are axial lead Metal Oxide Varistors (MOVs) for use in a wide

1 Axial ead / Application Specific Varistors > MA Series MA Varistor Series RoHS Description The MA Series of transient surge suppressors are axial lead Metal Oxide Varistors (MOVs) for use in a wide variety of board level industrial and commercial electronic equipment. They are intended to protect components and signal/data lines from low energy transients where the small axial lead package is required. The MA Series is offered with standard ('S' suffix) or tightened ('B' suffix) clamping voltage. See MA Series Device Ratings and Specifications Table for part number and brand information. Agency Approvals Features Agency Agency File Number None Additional Information Datasheet Resources Samples ead free, Halogen- Free and RoHS compliant. 3mm diameter disc size Small axial lead package Wide operating voltage range: V M(A)RMS 9V to 4V V M(D) 3V to 365V Available in tape and reel or bulk packaging No derating up to 85º ambient New black epoxy offers improved performance for high temperature ead-free wave soldering process. Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart ontinuous MA Series Units Steady State Applied Voltage: A Voltage Range (V M(A)RMS ) 9 to 4 V D Voltage Range (V M(D) ) 3 to 365 V Transient: Peak Pulse urrent (I TM ) For 8/µs urrent Wave(See Figure ) to A Single-Pulse Energy Range For ms urrent Square Wave (W TM ).6 to.7 J Operating Ambient Temperature Range (T A ) -55 to +85 Storage Temperature Range (T STG ) -55 to +5 Temperature oefficient (αv) of lamping Voltage (V ) at Specified Test urrent <. %/ Hi-Pot Encapsulation (OATING Isolation Voltage apability) Dielectric must withstand indicated D voltage for one minute per MI-STD, Method ) V OATING Insulation Resistance MΩ AUTION: 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. 7 ittelfuse, Inc. Revised: 9//7

2 Axial ead / Application Specific Varistors > MA Series MA Series Ratings & Specifications Part Number VMAA VMAB VMAS VMAA VMAB VMAS VMAA VMAB VMAS VMAA VMAS VMAA VMAB VMAS VMAA VMAB VMAS VMAA VMAB VMAS VMA3A VMA3B VMA3S VMA3A VMA3B VMA3S VMA4A VMA4B VMA4S VMAA VMAB VMAS VMAA VMAB VMAA VMA3B VMAA VMA4B VMAA VMA4B V3MAA V3MA5B V3MA3A V3MA6B V4MA3A V4MA7B Brand (mm) A B S A B S A B S A B S A B S A B S A B S A B S A B S ontinuous Maximum Rating (85 ) Transient V RMS V D Energy (/µs) Peak urrent (8/µs) Varistor Voltage at ma D Test urrent Specifications (5 ) Max lamping Volt V at.a (8/µs) Typical apacitance V M(A) V M(D) W TM I TM Min V N(D) Max V f = MHz (V) (V) (J) (A) (V) (V) (V) (A) (pf) NOTE: Average power dissipation of transients not to exceed mw. 7 ittelfuse, Inc. Revised: 9//7

3 Axial ead / Application Specific Varistors > MA Series Power Dissipation Ratings Peak Pulse urrent Test Waveform -55 Figure AMBIENT TEMPERATURE ( o ) Figure PERENT OF RATED VAUE Should FIGURE transients. URRENT, occur in ENERGY rapid succession, AND POWER the DERATING average power dissipation required URVE is simply the energy (watt-seconds) per pulse times the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings and Specifications table for the specific device. Furthermore, the operating values need to be derated at high temperatures as shown above. Because varistors can only dissipate a relatively small amount of average power they are, therefore, not suitable for repetitive applications that involve substantial amounts of average power dissipation. PERENT OF PEAK VAUE O TT T TIME = Virtual Origin of Wave T = Time from % to % of Peak T = Rise Time =.5 x T T = Decay Time Example - For an 8/ µs urrent Waveform: 8µs = T = Rise Time µs = T = Decay Time O = Virtu T = Time T = Virtu T = Virtu Example: F 8 s = T = s = T = FIGURE. PEAK PUSE URRENT TEST Repetitive Surge apability VMA - VMA VMAA/S - V4MA3A SURGE URRENT (A) VMAA - VMA4B INDEFINITE INDEFINITE....,, IMPUSE DURATION (μs) IMPUSE DURATION (μs) Figure 3 Figure 4 FIGURE 7. SURGE URRENT RATING URVES FOR VMA FIGURE 8. SURGE URRENT RATING URVES FOR SERIES - VMA SERIES VMA SERIES - V4MA SERIES NOTE: If pulse ratings are exceeded, a shift of V N(D) (at specified current) of more than +/-% could result. This type of shift, which normally results in a decrease of V N(D), may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection. SURGE URRENT (A) VMAA - V4MA7B 7 ittelfuse, Inc. Revised: 9//7

4 Maximum lamping Voltage VMAA/S - VMA4A/S IMUM PEAK VOTS Metal-Oxide Varistors (MOVs) Axial ead / Application Specific Varistors > MA Series VMAA/S VMAA/S VMAA/S VMAA/S VMAA/S VMAA/S - - FIGURE 3. AMPING VOTAGE FOR VMAA/S - VMA4A/S VMAB - VMA4B IMUM PEAK VOTS - - FI GURE 4. AMPIN V4MA3 AMPING VOTAGE VMA4A/S AMPING VOTAGE AMPING DIS VOTAGE SIZE 3mm VMA4A/S VMA3A/S AMPING DIS VOTAGE AMPING SIZE 3mmVOTAGE V4MA3A TO V N(D) RATING VMA3A/S T A = -55 o TO 85 o DIS SIZE TO 4V 3mm N(D) RATING VMAA/S T A = -55 o TO 85 o V3MA3A VMA3A/S DIS SIZE 3mm V4MA3A TO V N(D) RATING VMA3A/S, TO V N(D) RATING V3MAAVMA4B T T A = -55 o TO 85 o A = -55 o TO 85 o TO 4V N(D) RATING VMAA/S T A = -55 VMAA, o TO 85 o V3MA3A, V3MAA VMA3B VMAA VMAA VMA3B, VMAA VMAA/S VMAB VMAA/S VMAA/S VMAB VMAA/S VMAA/S VMAB VMAA/S VMAA/S VMAA VMAA/S VMAA/S VMAB VMAA VMAA VMAA/S VMAB VMAA/S VMAA VMAB VMAA/S - - VMAA/S - - VMAA/S PEAK AMPERES (A) Figure 5 Figure 6 FIGURE 3. AMPING VOTAGE FOR VMAA/S - VMA4A/S FI GURE 4. AMPING VOTAGE FOR VMAA/S - FIGURE 3. AMPING VOTAGE FOR VMAA/S - VMA4A/S FI GURE 4. FIGURE AMPING 5. AMPING VOTAGE VOTAGE FOR VMAB - VMA4B V4MA3A FOR VMAA/S - VMAA/S - V4MA3A VMAB V4MA3A - V4MA7B IMUM PEAK PEAK VOTS VOTS (V) (V) 3,, IMUM A TO 4V N(D T A = -55 o TO -3 - FIGURE 6. AMPING V IMUM IMUM PEAK PEAK VOTS VOTS (V) (V),, Wave Solder Profile AMPING VOTAGE AMPING VOTAGE DIS AMPING SIZE 3mm VOTAGE V4MA3A DIS TO SIZE 4V N(D) TO RATING V N(D) RATING T T A = -55 o TO 85 o A = -55 o 3mm TO 85 o V3MA3A TO V N(D) RATING V3MAA VMA4B T A = -55 o TO 85 o VMAA VMA3B VMAA VMA3B VMA4B VMA3B VMA3B IMUM AMPING VOTAGE IMUM 3,AMPING DIS SIZE VOTAGE 3mm TO 4V N(D) RATING TO, 4V T A = -55 o TO 85 o N(D) RATING T A = -55 o TO 85 o V4MA7B V4MA7B V3MA6B V3MA6B V3MA5B VMA4B V3MA5B VMA4B VMA4B VMA4B VMA3B VMA3B VMAB VMAB VMAB VMAB AA/S VMAB VMAB A/S VMAB VMAB VMAB /S VMAB VMAB VMAA VMAB VMAA VMAB VMAB VMAA/S VMAB VMAB PEAK - AMPERES PEAK (A) AMPERES (A) PEAK AMPERES (A) Figure 7 3 Figure 8 MA4A/S FI GURE 4. AMPING FIGURE 5. VOTAGE AMPING FOR VOTAGE VMAA/S FOR VMAB - - VMA4B FIGURE 6. AMPING VOTAGE FOR VMAB - V4MA7B FIGURE 5. AMPING VOTAGE FOR VMAB - VMA4B FIGURE 6. AMPING VOTAGE FOR VMAB - V4MA7B V4MA3A 3,, MA4B A3B A3B B B MA4B 3 Non ead free Profile TEMPERATURE (º) 3,, IMUM AMPING VOTAGE TO 4V N(D) RATING T A = -55 o TO 85 o V4MA7B Maximum Wave V3MA6B V3MA5B VMA4B VMA4B VMA3B VMAB VMAB FIGURE 6. AMPING VOTAGE FOR VMAB - V4MA7B Figure 9 TIME(MINUTES) ead free Profile Maximum Wave Figure TIME(MINUTES) TEMPERATURE (º) 7 ittelfuse, Inc. Revised: 9//7

5 Axial ead / Application Specific Varistors > MA Series Product Dimensions Physical Specifications ead Material Tin plated opper clad steel b (diameter) H D (diameter) Soldering haracteristics Insulating Material Solderability per MI STD, Method 8 ured, flame retardant epoxy polymer meets U94V requirements Symbol Inches Millimeters Min Max Min Max Øb.4. H.6.66 ØD øb 4.5 H ød.7..3 D (diameter). b (diameter) Typical HWeight =.5g G Tape and Reel Dimensions H = H +/-..63 max H H Device abeling Environmental Specifications Operating/Storage Temperature Passive Aging Humidity Aging Thermal Shock Marked with F, voltage and date code - to , hours +/-% typical voltage change +85, 85% RH, hours +/-% typical voltage change +85 to - 5 times +/-% typical voltage change. +/-. Solvent Resistance MI STD, Method 5 Moisture Sensitivity evel, J-STD- Part Numbering System. max V XXX MA XX. +/-..6 +/-.59. max onforms to EIA Standard RS-96-E VARISTOR VARISTOR VOTAGE (V N at ma) ENERGY/AMPING VOTAGE VARIANT SERIES DESIGNATOR MA: Bulk Pack MT: Tape and Reel H = H. H H ittelfuse, Inc.. Revised: 9//7 onforms to EIA Standard RS-96E... Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. ittelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at

Description. Features. Continuous BA Series BB Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS

Description. Features. Continuous BA Series BB Series Units Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS BA/BB Varistor Series RoHS Description The BA and transient surge suppressors are heavy-duty industrial Metal-Oxide Varistors (MOVs) designed to provide surge protection for motor controls and power supplies