ELECTROSÓN. ZA Series. Features. Radial Lead Metal-Oxide Varistors for Low to Medium Voltage Operation. [ /Title (ZA Series) /Subject

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1 Data Sheet July 999 File Number 84.6 [ /Title (ZA Series) /Subject (Radial Lead Metal Oxide Varistors for Low to Mediu m Voltage Operation) /Autho r () /Keywords (Littelfuse, Inc., Suppression Products, TVS, Transient Suppression, Protection, Automotive, Radial Lead MetalOxide Varistors for Low to Medium Voltage Operation The ZA Series of transient voltage surge suppressors are radiallead varistors (MOVs) designed for use in the protection of low and mediumvoltage circuits and systems. Typical applications include motor control, telecom, automotive systems, solenoid, and power supply circuits to protect circuit board components and maintain data integrity. These devices are available in five model sizes: mm, 7mm, 0mm, 4mm and 0mm, and feature a wide V DC voltage range of.v to 6V. See ZA Series Device Ratings and Specifications table for part number and brand information. Features Recognized as Protectors for Data Communications and Fire Alarm Circuits, UL File #E to Std. 497B VDE Certified. License Number 689E Wide Operating Voltage Range V M(AC)RMS.... 4V to 460V DC Voltage Ratings V to 6V No Derating Up to 8 o C Ambient Model Sizes Available , 7, 0, 4, and 0mm RadialLead Package for HardWired or Printed Circuit Board Designs Available in Tape and Reel or Bulk Pack Standard Lead Form Options Packaging 4MM, 0MM MM, 7MM, 0MM 44

2 Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart. Continuous: Steady State Applied Voltage: AC Voltage Range (V M(AC)RMS ) DC Voltage Range (V M(DC) ) Transient: Peak Pulse Current (I TM ) For 8/0µs Current Wave (See Figure ) Single Pulse Energy Range (Note ) For 0/000µs Current Wave (W TM ) ZA SERIES 4 to 460. to 6 0 to to J Operating Ambient Temperature Range (T A ) to 8 o C Storage Temperature Range (T STG ) to o C Temperature Coefficient (αv) of Clamping Voltage (V C ) at Specified Test Current <0.0 %/ o C HiPot Encapsulation (Isolation Voltage Capability) V (Dielectric must withstand indicated DC voltage for one minute per MILSTD 0, Method 0).... Insulation Resistance MΩ 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.. UNITS V V A Device Ratings and Specifications (Note ) VDE Certified. License Number 689E ZA Series Varistors are listed under UL File No. E as a UL recognized component. PART NUMBER SIZE DISC DIA. (mm) BRAND CONTINUOUS MAXIMUM RATING (8 o C) SPECIFICATIONS ( o C) V RMS V DC x 000µs ENERGY 0 TRANSIENT PEAK CURRENT 8 x 0µs V M(AC) V M(DC) W TM I TM MIN V NOM VARISTOR VOLT AGE AT ma DC TEST CURRENT MAXIMUM CLAMPING VOLTAGE 8 x 0µs TYPICAL CAPACI TANCE f = MHz V NOM MAX V C I PK C (V) (V) (J) (A) (V) (V) (A) (pf) V8ZA0 Z V8ZA 7 08Z V8ZA 0 08Z VZA0 Z VZA 7 Z VZA 0 Z V8ZA0 Z V8ZA 7 8Z V8ZA 0 8Z V8ZA 4 8Z V8ZA40 0 8Z (Note ) (Note ) VZA0 Z VZA 7 Z VZA 0 Z VZA 4 Z V4ZA0 0 4Z0 4 8 (Note 4) 00 (Note ) (Note ) V7ZA0 Z V7ZA 7 7Z V7ZA 0 7Z V7ZA4 4 7Z V7ZA60 0 7Z (Note ) 000 (Note )

3 Device Ratings and Specifications (Note ) (Continued) VDE Certified. License Number 689E ZA Series Varistors are listed under UL File No. E as a UL recognized component. PART NUMBER SIZE DISC DIA. (mm) BRAND CONTINUOUS MAXIMUM RATING (8 o C) SPECIFICATIONS ( o C) V RMS V DC x 000µs ENERGY 0 TRANSIENT PEAK CURRENT 8 x 0µs V M(AC) V M(DC) W TM I TM MIN V NOM VZA0 Z VZA 7 Z VZA 0 Z VZA 4 Z VZA70 0 Z (Note ) (Note ) V6ZA80 0 6Z80 60 (Note ) 000 (Note ) VARISTOR VOLT AGE AT ma DC TEST CURRENT MAXIMUM CLAMPING VOLTAGE 8 x 0µs TYPICAL CAPACI TANCE f = MHz V NOM MAX V C I PK C (V) (V) (J) (A) (V) (V) (A) (pf) V9ZA0 Z V9ZA 7 9Z V9ZA 0 9Z V9ZA6 4 9Z V9ZA0 0 9Z V47ZA0 Z V47ZA 7 47Z V47ZA 0 47Z V47ZA7 4 47Z V47ZA0 0 47Z V6ZA0 Z V6ZA 7 6Z V6ZA 0 6Z V6ZA8 4 6Z V6ZA0 0 6Z V68ZA0 Z V68ZA 7 68Z V68ZA 0 68Z V68ZA0 4 68Z V68ZA0 0 68Z V8ZA0 Z V8ZA 7 8Z V8ZA4 0 8Z V8ZA 4 8Z V00ZA0 Z V00ZA 7 00Z V00ZA4 0 00Z V00ZA 4 00Z

4 Device Ratings and Specifications (Note ) (Continued) VDE Certified. License Number 689E ZA Series Varistors are listed under UL File No. E as a UL recognized component. PART NUMBER V0ZA0 Z V0ZA 7 0Z V0ZA4 0 0Z V0ZA6 4 0Z V0ZA0 0 0Z V0ZA0 Z V0ZA 7 Z V0ZA4 0 0Z V0ZA8 4 0Z V0ZA0 0 0Z V80ZA0 Z V80ZA 7 80Z V80ZA 0 80Z V80ZA0 4 80Z V80ZA0 0 80Z V0ZA0 Z V0ZA0 Z V40ZA0 Z V70ZA0 Z V0ZA0 Z V60ZA0 Z VZA0 Z V40ZA0 Z V470ZA0 Z V60ZA0 Z V680ZA0 Z V7ZA0 Z V70ZA0 Z NOTES: SIZE DISC DIA. (mm). Average power dissipation of transients not to exceed 0.W, 0.W, 0.4W, 0.6W or W for model sizes mm, 7mm, 0mm, 4mm and 0mm, respectively.. Energy rating for impulse duration of 0ms minimum to one half of peak current (auto load dump).. 0mA DC test current. BRAND 4. Also rated to withstand 4V for minutes. CONTINUOUS MAXIMUM RATING (8 o C) SPECIFICATIONS ( o C) V RMS V DC x 000µs ENERGY 0 TRANSIENT PEAK CURRENT 8 x 0µs V M(AC) V M(DC) W TM I TM MIN V NOM. Higher voltages available, contact Littelfuse. Also listed to UL449, Second Edition, Transient Voltage Surge Suppressors File #E796. VARISTOR VOLT AGE AT ma DC TEST CURRENT MAXIMUM CLAMPING VOLTAGE 8 x 0µs TYPICAL CAPACI TANCE f = MHz V NOM MAX V C I PK C (V) (V) (J) (A) (V) (V) (A) (pf) 47

5 Power Dissipation Ratings Should transients occur in rapid succession, the average power dissipation required is simply the energy (wattseconds) 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 in Figure. 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.. PERCENT OF RATED VALUE AMBIENT TEMPERATURE ( o C) FIGURE. CURRENT, ENERGY AND POWER DERATING CURVE PERCENT OF PEAK VALUE O = Virtual Origin of Wave T = Time From 0% to % of Peak T = Virtual Front time =. t T = Virtual Time to Half Value (Impulse Duration) Example: For an 8/0µs Current Waveform: 8µs = T = Virtual Front Time 0µs = T = Virtual Time to Half Value O TT T TIME Transient VI Characteristics Curves FIGURE. PEAK PULSE CURRENT TEST WAVEFORM MAX CLAMPING VOLTAGE SIZE mm 8 TO 68V N(DC) RATING T A = o C TO 8 o C V68ZA0 V6ZA0 V47ZA0 V9ZA0 VZA0 V7ZA0 VZA0 V8ZA0 VZA V0ZA0 V70ZA0 V40ZA0 V0ZA0 V0ZA0 V80ZA0 V0ZA0 V0ZA0 MAX CLAMPING VOLTAGE SIZE mm 8 TO 0V N(DC) RATING T A = o C TO 8 o C V00ZA0 V8ZA0 0 0 V8ZA FIGURE. CLAMPING VOLTAGE FOR V8ZA0 V68ZA FIGURE 4. CLAMPING VOLTAGE FOR V8ZA0 V0ZA0 48

6 Transient VI Characteristics Curves (Continued) V70ZA0 V7ZA0 V680ZA0 V60ZA0 V470ZA0 V40ZA0 VZA0 V60ZA0 MAX CLAMPING VOLTAGE SIZE mm 60 TO 70V N(DC) RATING T A = o C TO 8 o C SIZE 7mm 8 TO 68V N(DC) RATING T A = o C TO 8 o C V68ZA V6ZA V47ZA V9ZA VZA V7ZA VZA V8ZA VZA V8ZA FIGURE. CLAMPING VOLTAGE FOR V60ZA0 V70ZA0 FIGURE 6. CLAMPING VOLTAGE FOR V8ZA V68ZA 4,000,000,000, SIZE 7mm 8 TO 80V N(DC) RATING T A = o C TO 8 o C V80ZA V0ZA V0ZA V00ZA V8ZA SIZE 0mm 8 TO 68V N(DC) RATING T A = o C TO 8 o C V68ZA V6ZA V47ZA V9ZA VZA V7ZA VZA V8ZA VZA V8ZA FIGURE 7. CLAMPING VOLTAGE FOR V8ZA V80ZA FIGURE 8. CLAMPING VOLTAGE FOR V8ZA V68ZA 4,000,000,000, SIZE 0mm 8 TO 80V N(DC) RATING T A = o C TO 8 o C V80ZA V0ZA4 V0ZA4 V00ZA4 V8ZA SIZE 4mm 8 TO 68V N(DC) RATING T A = o C TO 8 o C V68ZA0 V6ZA8 V47ZA7 V9ZA6 VZA V7ZA4 VZA V8ZA FIGURE 9. CLAMPING VOLTAGE FOR V8ZA4 V80ZA FIGURE 0. CLAMPING VOLTAGE FOR V8ZA V68ZA0 49

7 Transient VI Characteristics Curves (Continued) 4,000,000,000, SIZE 4mm 8 TO 80V N(DC) RATING T A = o C TO 8 o C V80ZA0 V0ZA8 V0ZA6 V00ZA V8ZA SIZE 0mm 8 TO 6V N(DC) RATING T A = o C TO 8 o C V6ZA80 VZA70 V7ZA60 V4ZA0 V8ZA FIGURE. CLAMPING VOLTAGE FOR V8ZA V80ZA0 FIGURE. CLAMPING VOLTAGE FOR V8ZA40 V6ZA80, SIZE 0mm 9 TO 80V M(AC) RATING T A = o C TO 8 o V80ZA0 C V0ZA0 V0ZA0 V68ZA0 V6ZA0 V47ZA0 V9ZA FIGURE. CLAMPING VOLTAGE FOR V9ZA0 V80ZA0 Pulse Rating Curves SIZE mm V8ZA SIZE mm VZA0 V68ZA ,000 0,000 FIGURE 4. SURGE CURRENT RATING CURVES FOR V8ZA ,000 0,000 FIGURE. SURGE CURRENT RATING CURVES FOR VZA0 V68ZA0 440

8 Pulse Rating Curves (Continued) SIZE mm 0 V8ZA0 V70ZA SIZE 7mm V8ZA VZA ,000 0,000 FIGURE 6. SURGE CURRENT RATING CURVES FOR V8ZA0 V70ZA SIZE 7mm V8ZA V68ZA 0 00,000 0,000 FIGURE 8. SURGE CURRENT RATING CURVES FOR V8ZA V68ZA ,000 0,000 FIGURE 7. SURGE CURRENT RATING CURVES FOR V8ZA VZA,000, SIZE 7mm V8ZA V80ZA 0 00,000 0,000 FIGURE 9. SURGE CURRENT RATING CURVES FOR V8ZA V80ZA SIZE 0mm V8ZA VZA, SIZE 0mm V8ZA V68ZA ,000 0, ,000 0,000 FIGURE 0. SURGE CURRENT RATING CURVES FOR V8ZA V7ZA FIGURE. SURGE CURRENT RATING CURVES FOR V8ZA V68ZA 44

9 Pulse Rating Curves (Continued),000,000, SIZE 0mm V8ZA4 V80ZA, SIZE 4mm V8ZA V68ZA0 0 00,000 0,000 FIGURE. SURGE CURRENT RATING CURVES FOR V8ZA4 V80ZA 0 00,000 0,000 FIGURE. SURGE CURRENT RATING CURVES FOR V8ZA V68ZA0,000, , SIZE 4mm V8ZA V80ZA0,000, SIZE 0mm V8ZA40 V68ZA ,000 0,000 FIGURE 4. SURGE CURRENT RATING CURVES FOR V8ZA V80ZA0 0 00,000 0,000 FIGURE. SURGE CURRENT RATING CURRENT FOR V8ZA40 V68ZA0 0,000,000,000, SIZE 0mm V0ZA0 V80ZA0 0 00,000 0,000 FIGURE 6. SURGE CURRENT RATING CURVES FOR V0ZA0 V80ZA0 NOTE: If pulse ratings are exceeded, a shift of V N(DC) (at specified current) of more than ±0% could result. This type of shift, which normally results in a decrease of V N(DC), 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. 44

10 Tape and Reel Specifications Tape and Reel Data Conforms to ANSI and EIA specifications Can be supplied to IEC Publication 86 Radial devices on tape are supplied with crimped leads, straight leads, or undercrimped leads SYMBOL PARAMETER SIZE mm 7mm 0mm 4mm 0mm P Pitch of Component.7 ±.0.7 ±.0.4 ±.0.4 ±.0.4 ±.0 P 0 Feed Hole Pitch.7 ± 0..7 ± 0..7 ± 0..7 ± 0..7 ± 0. P Feed Hole Center to Pitch.8 ± ± ± ± ± 0.7 P Hole Center to Component Center 6. ±.0 6. ±.0 6. ±.0 6. ±.0 6. ±.0 F Lead to Lead Distance.0 ±.0.0 ±.0 7. ±.0 7. ±.0 7. ±.0 h Component Alignment.0 Max.0 Max.0 Max.0 Max.0 Max W Tape Width W 0 Hold Down Tape Width 6.0 ± ± ± ± 0..0 ± 0. W Hole Position W Hold Down Tape Position 0. Max 0. Max 0. Max 0. Max 0. Max H Height from Tape Center to Component Base H 0 Seating Plane Height 6.0 ± ± ± ± ± 0. H Component Height 9.0 Max.0 Max 6.0 Max 40.0 Max 46. Max D 0 Feed Hole Diameter 4.0 ± ± ± ± ± 0. t Total Tape Thickness 0.7 ± ± ± ± ± 0. L Length of Clipped Lead.0 Max.0 Max.0 Max.0 Max.0 Max p Component Alignment o Max o Max o Max o Max o Max NOTE: Dimensions are in mm. 44

11 Tape and Reel Ordering Information Crimped leads are standard on ZA types supplied in tape and reel and are denoted by the model letter T. Model letter S denotes straight leads and letter U denotes special undercrimped leads. Example: STANDARD CRIMPED LEADS STRAIGHT LEADS UNDER CRIMPED LEADS V8ZA V8ZT V8ZS V8ZU Mechanical Dimensions SIZE RMS (MAX) VOLTAGE SHIPPING QUANTITY QUANTITY PER REEL T REEL S REEL U REEL mm All mm All mm All mm < V mm V mm < V mm V SYM BOL VOLTAGE VARISTOR SIZE mm 7mm 0mm 4mm 0mm MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX A All 0 (0.94) (0.47) 6 (0.60) 0 (0.787) 6. (.04) ØD All 7 (0.76) 9 (0.4). (0.49) 7 (0.669) (0.6) e All 4 (0.7) 6 (0.6) 4 (0.7) 6 (0.6) 6. (0.6) 8. (0.) 6. (0.6) 8. (0.) 6. (0.6) (Note 6) 8. (0.) (Note 6) e V8ZA V6ZA (0.8) (0.8) (0.8) (0.8) (0.8) V68ZA V00ZA. (0.09). (0.8). (0.09). (0.8). (0.09). (0.8). (0.09). (0.8) NA (NA) NA (NA) V0ZA V80ZA (0.8) (0.8) (0.8) (0.08) (0.8) NA (NA) NA (NA) V0ZA V70ZA. (0.09). (0.8) E V8ZA V6ZA (0.97) (0.97) (0.97) (0.97) (0.97) V68ZA V00ZA.6 (0.0).6 (0.0).6 (0.0).6 (0.0).6 (0.0) V0ZA V80ZA (0.97) (0.97) (0.97) (0.97) (0.97) V0ZA V70ZA.6 (0.0) Øb All 0.8 (0.0) 0.68 (0.07) 0.8 (0.0) 0.68 (0.07) 0.76 (0.00) 0.86 (0.04) 0.76 (0.00) 0.86 (0.04) 0.76 (0.00) 0.86 (0.04) NOTES: Dimensions in millimeters, inches in parentheses. 6. 0mm ALSO AVAILABLE; See Additional Lead Style Options. 7. V4ZA0 only supplied with lead spacing of 6.mm ± 0.mm (0. ± 0.096) Dimension E =.8 min. 444

12 Additional Lead Style Options Radial lead types can be supplied with combination preformed crimp and trimmed leads. This option is supplied to the dimensions shown. ZA Series *SEATING PLANE INTERPRETATION PER IEC77 CRIMPED AND TRIMMED LEAD VARISTOR SIZE mm 7mm 0mm 4mm 0mm SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX A.0 (0.) (0.9) 9. (0.768). (0.886) 9.0 (.4) L TRIM.4 (0.09) 4.69 (0.8).4 (0.09) 4.69 (0.8).4 (0.09) 4.69 (0.8).4 (0.09) 4.69 (0.8).4 (0.09) 4.69 (0.8) NOTE: Dimensions in millimeters, inches in parentheses. To order this crimped and trimmed lead style, standard radial type model numbers are changed by replacing the model letter ZA with ZC. This option is supplied in bulk only. Example: For 0/±mm lead spacing on 0mm diameter models only; append standard model numbers by adding X0. Example: STANDARD CATALOG ORDER AS: STANDARD CATALOG ORDER AS: V8ZA V8ZC V8ZA40 V8ZA40X0 For crimped leads without trimming and any variations to the above, contact Littelfuse. Ordering Information V XXX ZA XX VARISTOR RELATIVE ENERGY INDICATOR (One or Two Digits) VARISTOR NOMINAL VOLTAGE (V NOM ) (One, Two or Three Digits) SERIES DESIGNATOR/ LEAD STYLE DESIGNATOR ZC = Crimped and Clipped ZS = Straight ZT = Crimped ZU = Under Crimped 44