9EL2

9EL2, 9EL3 BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS 9ELx Primary Protector Series Ion-Implanted Breakdown Region - Precise and Stable Voltage - Low Voltage Overshoot under Surge Device 9EL2 Cell Package (Side View) T( A) V(BR) V(BO) V(BO) Minimum Minimum Maximum V V V ±245 ±265 ±400 ±200 ±265 9EL3 R( B) MD4XACAa Rated for International Surge Wave Shapes Device ITU-T K28 GR-974-CORE (10/700) (10/1000) ITSP ITSP A A 9EL2 ±200 ±150 9EL3 ±125 ±100 Gas Discharge Tube (GDT) Replacement Planar Passivated Junctions in a Protected Cell Construction - Low Off-State Current -Extended Service Life Device Symbol T R SD4XAA Terminals T and R correspond to the alternative line designators of A and B Soldered Copper Electrodes - High Current Capability - Cell Construction Short Circuits Under Excessive Current Conditions ............................................ UL Recognized Components Description These devices are primary protector components for semiconductor arrester assemblies intended to meet the generic requirements of Telcordia GR-974-CORE or ITU-T Recommendation K28 (03/93). To conform to the specified environmental requirements, the 9ELx must be installed in a housing which maintains a stable microclimate during these tests (e.g. FIGURE I.1/K28). The protector consists of a symmetrical voltage-triggered bidirectional thyristor. Overvoltages are initially clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to crowbar into a low-voltage on state. This low-voltage on state causes the current resulting from the overvoltage to be safely diverted through the device. In usual applications, the high crowbar holding current prevents d.c. latchup as the diverted current subsides. This 9ELx range consists of two voltage variants to meet various maximum system voltage levels. They are designed to voltage limit and withstand the listed international lightning surges in both polarities. These monolithic protection devices are constructed using two nickel plated copper electrodes soldered to each side of the silicon chip. This packaging approach allows heat to be removed from both sides of the silicon, resulting in the doubling of the devices thermal capacity, enabling a power line cross current capability of 10 A rms for 1 second. One of the 9ELx’s copper electrodes is specially shaped to promote a progressive shorting action (at 50/60 Hz currents greater than 60 A). The assembly must hold the 9ELx in compression, so that the cell electrodes can be forced together during overstress testing. Under excessive power line cross conditions the 9ELx will fail short circuit, providing maximum protection to the equipment. JANUARY 1994 - REVISED OCTOBER 2003 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 1 9ELx Primary Protector Series Absolute Maximum Ratings, TA = 25 °C (Unless Otherwise Noted) Rating Symbol Value Unit Non-repetitive peak on-state pulse current (see Notes 1 and 2) 5/310 µs (ITU-T K28, 10/700 µs voltage wave shape) 10/1000 µs (GR-974-CORE, 10/1000 µs voltage wave shape) 9EL2 -20 °C to 65 °C 200 9EL3 125 0 °C to 65 °C 9EL2 -20 °C to 65 °C 9EL3 0 °C to 65 °C 9EL2 -40 °C to 65 °C 9EL3 0 °C to 65 °C ITSP A 150 100 Non-repetitive peak on-state current (see Note 1) full sine wave, 50/60 Hz, 1 s A rms 10 TJ -40 to +150 °C Tstg -40 to +150 °C Junction temperature Storage temperature range 10 ITSM NOTES: 1. The surge may be repeated after the device has returned to thermal equilibrium. 2. Most PTTs quote an unloaded voltage waveform. In operation the 9ELx essentially shorts the generator output. The resulting loaded current waveform is specified. Electrical Characteristics for the R and T Terminals, TA = 25 °C (Unless Otherwise Noted) Parameter V(BR) Breakdown Voltage Test Conditions I(BR) = ±20 mA, (see Note 3) Min 9EL2 9EL2 V(BO) Breakover voltage dv/dt = ±0.2 V/s, RSOURCE > 200 9EL3 V(BO) +15 °C to 25 °C ±265 -40 °C to 65 °C +15 °C to 25 °C Typ Max ±400 ±200 0 °C to 65 °C ±265 9EL2 -40 °C to 65 °C ±400 voltage di/dt ≤ 10 A/µs 9EL3 0 °C to 65 °C ±350 9EL2 -40 °C to 65 °C 20 9EL3 0 °C to 65 °C 20 9EL2 -40 °C to 65 °C ±0.5 9EL3 0 °C to 65 °C ±0.5 9EL2 -40 °C to 65 °C ±10 135 V O.C., 200 mA S.C. on-state current 25 A, 10/1000 µs impulse VD = ±50 V (see Note 4) Off-state current VD = ±200 V Off-state capacitance f = 1 MHz, Vd = 1 Vrms, VD = 0, 9EL3 +15 °C to 25 °C ±1 9EL2 -40 °C to 65 °C 150 9EL3 150 0 °C to 65 °C Unit V 100 V/µs ≤ dv/dt ≤ ±1000 V/µs, Sources are 52.5 V O.C., 260 mA S.C. and Coff ±245 Impulse breakover Impulse reset ID -40 °C to 65 °C V V ms µA pF NOTES: 3. Meets Telcordia GR-974-CORE Issue 2, December 1999 - Rated Voltage Test (4.7). 4. This device is sensitive to light. Suggest that this parameter be measured in a dark environment. 2 JANUARY 1994 - REVISED OCTOBER 2003 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 9ELx Primary Protector Series Parameter Measurement Information +i Quadrant I ITSP Switching Characteristic ITSM V(BO) VD -v V (BR) I(BR) ID ID I(BR) VD +v V(BR) V(BO) ITSM Quadrant III ITSP Switching Characteristic -i PMXXAG Figure 1. Voltage-Current Characteristic for the T and R Terminals All Measurements are Referenced to the R Terminal JANUARY 1994 - REVISED OCTOBER 2003 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 3 9ELx Primary Protector Series Cell Package BUTTON CELL 9ELx 0.508 MAX. (0.020) Top Electrode Sleeve 2.11 - 2.31 (0.083 - 0.091) Bidirectional Silicon Chip 0.178 MAX. (0.007) 2x Bottom Electrode 1.27 - 1.65 DIA. (0.050 - 0.065) 3.76 - 4.27 DIA. (0.148 - 0.168) DIMENSIONS ARE : MILLIMETERS (INCHES) MDXXAVAa 4 JANUARY 1994 - REVISED OCTOBER 2003 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Bourns Sales Offices Region Phone Fax The Americas: +1-909-781-5500 +1-909-781-5700 +1-951-781-5500 +1-951-781-5700 (after 7/17/04) Europe: +41(0)41-7685555 +41(0)41-7685510 Asia-Pacific: +886-2-25624117 +886-2-25624116 Phone Fax Technical Assistance Region The Americas: +1-909-781-5500 +1-909-781-5700 +1-951-781-5500 +1-951-781-5700 (after 7/17/04) Europe: +41(0)41-7685555 +41(0)41-7685510 Asia-Pacific: +886-2-25624117 +886-2-25624116 www.bourns.com Bourns® products are available through an extensive network of manufacturer’s representatives, agents and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Reliable Electronic Solutions . “Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries. COPYRIGHT© 2004, BOURNS, INC. LITHO IN U.S.A. e 03/04/TSP0340