FEATURES
UNDIRECTIONAL CROWBAR PROTECTION. PEAK PULSE CURRENT: IPP = 75 A , 10/1000 µs. HOLDING CURRENT = 150mA. BREAKDOWN VOLTAGE: SMTHDT58 = 58V. SMTHDT80 = 80V. SMTHDT120 = 120V. PACKAGES: SMTHDTxx = SURFACE MOUNT PACKAGE. DESCRIPTION
: TRIBALANCED PROTECTION Dedicated protection devices for ISDN LINE CARD and high speed data telecom lines. Used with the recommended configuration using 3 components, they will provide = - Dual bidirectionnal protection, with fixed breakdown voltage in both common and differential modes. - Low capacitancesfrom lines to ground. - Very good capacitance balance : ∆C= 30 pF. ABSOLUTE RATINGS (limiting values) (-40°C ≤ Tamb ≤ +85°C) Symbol IPP ITSM di/dt dv/dt Tstg Tj Parameter Peak pulse current Non repetitive surge peak on-state current Critical rate of rise of on-state current Critical rate of rise of off-state voltage 10/1000 µs 8/20 µs tp = 20 ms Non repetitive 67% VBR Value 75 150 30 100 5 - 40 to + 150 + 150 Unit A A A/µs KV/µs °C °C SMC FUNCTIONAL DIAGRAM.
STMicroelectronics
