Tvs Diode Array Spa Diodes Page 29 TVS Diode Array SPA Diodes Catalog

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/23/17 TVS Diode Arrays (SPA Diodes) General Purpose ESD Protection - SP723 Series ESD Capability ESD capability is dependent on the application and defined test standard.The evaluation results for various test standards and methods based on Figure 1 are shown in Table 1. The SP723 has a Level 4 HBM capability when tested as a device to the IEC 61000-4-2 standard. Level 4 specifies a required capability greater than 8kV for direct discharge and greater than 15kV for air discharge. For the "Modified" MIL-STD-3015.7 condition that is defined as an "in-circuit" method of ESD testing, the V+ and V- pins have a return path to ground and the SP723 ESD capability is typically greater than 25kV from 100pF through 1.5k . By strict definition of MIL-STD-3015.7 using "pin-to-pin" device testing, the ESD voltage capability is greater than 10kV. For the SP723 EIAJ IC121 Machine Model (MM) standard, the ESD capability is typically greater than 2kV from 200pF with no series resistance. Standard Type/Mode R D C D V D IEC 1000-4-2 (Level 4) HBM, Air Discharge 330 150pF 15kV HBM, Direct Discharge 330 150pF 8kV MIL- STD-3015.7 Modified HBM 1.5k 100pF 25kV Standard HBM 1.5k 100pF 10kV EIAJ IC121 Machine Model 0k 200pF 2kV EIAJ IC121 Machine Model 0k 200pF 1kV H.V. SUPPLY V D IN DUT C D R 1 IEC 1000-4-2: R 1 50 to 100M R D CHARGE SWITCH DISCHARGE SWITCH MIL-STD-3015.7: R 1 1 to 10M 600 800 1000 1200 200 160 120 80 40 0 T A = 25C SINGLE PULSE FORWARD SCR VOLTAGE DROP (mV) FORWARD SCT CURRENT (mA) 5 4 3 2 1 0 T A = 25C SINGLE PULSE V FWD I FWD EQUIV. SAT. ON . THRESHOLD ~ 1.1V FORWARD SCR CURRENT (A) FORWARD SCR VOLTAGE DROP (V) 0 1 2 3 Figure 1: Electrostatic Discharge Test Table 1: ESD Test Conditions Figure 3: High Current SCR Forward Voltage Drop Curve Figure 2: Low Current SCR Forward Voltage Drop Curve

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