Microsemi Corp, The diode experts SANTA ANA, CA / SCOTTSDALE, AZ For more information call: (602) 941-6300 Features The MSV series consists of a matched set of silicon junctions configured for bidirectional application. They can be used in telephone equipment, replacing: copper oxide varistors, fractional voltage regulators, negative temperature coefficient resistors, signal limiters and expanders. They are ideally suited for: meter/galvanometer protection, wave shaping, threshold limiters and zener diode compensation. The MSV varistor uses two anti-parallel, matched, silicon diodes in a two- electrode device configuration with a voltage-dependent nonlinear resistance that drops markedly as the applied voltage is increased. MSV devices are designed for controlled protection at various current levels and are rated at various peak pulse currents. These varistors are supplied in Microsemi's cost-effective, highly reliable, molded axial leaded package. Non-standard voltages are available. Devices in this series with Vc2 clamping are rated to U.L.497B requirements. (See table.) Maximum Ratings Steady State Power: 1.0 Watt at 50C Operating and Storage Temperatures: -65C to +175C Surge: 30 Amps, 8.4 ms @ 25C Pulse: 1.0 ms @ 25C for Vc q clamping* tclamping (0 volts to Vga min.): less than 1x10-8 seconds (theoretical) Electrical Characteristics at 25C (Test Both Polarities) Ver Ver Vor % MICROSEMI 2 2 2 at zero volts Veg ** PART BR BR PP* f=1MHz Vv NUMBER | Vde/uA = [Vdc / made VIA pF msvio1a | 94/400 | 511,000 : 200 msvio1s | Vay 100 | 66s 1,000 : 200 msviote | 947460 | 50/7,000 : 200 msviorw | 2273%> | 72/10 | 15/50 1500 38 msviore | 42/100, | 90/100 | 15/50 1500 38 msvio1r | -24 1400 90/100 15750 1500 38 msvi01g | 227 1% 0 | 90/100 | 15/50 1500 38 MSV201A 75471000 1.48 / 10 3.0/45 750 44 MSV301A | 4.60/1,000| 240/50 | */" 500 oa rasvaora | 132/100 | 292/10 [45735 200 64 msvaore | 33071000 | 72/19 | 35/35 400 4 MSV401C | 2.20/1,000 | 3.10/50 58/38 400 6a svsora | 129/10, | 5.00/ 100 | 6.5730 300 74 sveora | 399/100 | 460/100 | 8.0730 250 84 wsvrora | 339/100 | 5.00/50 | 9.0/30 20 94 * Conditions: Pulse is 10 x 1000 ys waveshape - 10 ps rise, 1000 ps triangle fall to 1/2 amplitude. - Voltage limits measured at Ipp peak pulse current. ** Per U.L.497B with 100v / us rise time. MSV101A thru MSV101G and MSV2O01A thru MSV701A BIDIRECTIONAL VARISTORS SCHEMATIC PACKAGE DIMENSIONS | "1.10 (MIN.) 27.9 190./.210 le 4.953 / 5.334 360. /..375 9.144 / 9.595 vas 1.10 (MIN.) 27.9 030 + 002 0.762 0508 "| | Dimensions: inches mm Mechanical | Characteristics CASE: Void free molded thermosetting plastic. FINISH: Plated CCFE readily solderable. POLARITY: Bidirectional. WEIGHT: 1.5 gram (Appx.) MOUNTING POSITION: Any. 4-51IMISV101A thru MSV101G and MSV201A thru MSV701A 100,000 MSV101A, B, C Only 10,000 1,000 See Note See Note 100 MSV101A, B, C Only lpr > Current - LA TC - Temperature Coefficient - mV/C Ie - Current - mA 01 02 03 04 05 06 07 08 09 10 FIGURE 2 Temperature Coefficient of Voltage vs. Current T FIG U R E 1 (NOTE: TC is a negative value.) Typical Current versus Voltage tT Ver - Voltage - Volts t NOTE: Multiply applicable Vpp voltage or TC by 2 for MSV201, by 3 for MSV301, by 4 for MSV401, by 5 for MSV501, by 6 for MSV601, and by 7 for MSV701. 4-52