Tvs Diode Array Spa Diodes Page 41 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 - SP725 Series ESD Capability Table 1: ESD Test Conditions Figure 3: High Current SCR Forward Voltage Drop Curve 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 SP725 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 "incircuit" method of ESD testing, the V+ and V- pins have a return path to ground and the SP725 ESD capability is typically greater than 25kV from 100pF through 1.5k . By strict definition of MIL-STD-3015.7 using "pinto-pin" device testing, the ESD voltage capability is greater than 10kV. For the SP725 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 61000-4-2 (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 H.V. SUPPLY V D IN DUT C D R 1 IEC 61000-4-2: R 1 50 to 100M R D CHARGE SWITCH DISCHARGE SWITCH MIL-STD-3015.7: R 1 1 to 10M Figure 2: Low Current SCR Forward Voltage Drop Curve Figure 1: Electrostatic Discharge Test 600 800 1000 1200 FORWARD SCRVOLTAGE DROP (mV) 200 160 120 80 40 0 T A = 25C SINGLE PULSE FORWARD SCR CURRENT (mA) 5 4 3 2 1 0 V FWD I FWD FORWARD SCRVOLTAGE DROP (V) FORWARD SCR CURRENT (A) 0 1 2 3 EQUIV . SAT. ON THRESHOLD ~ 1.1V T A = 25C SINGLE PULSE

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