SM6T18A

Part: SM6TxxA/CA — STMicroelectronics

Type: Transient Voltage Suppressor (TVS) Diode

Description: The SM6T series are designed to protect sensitive equipment against electrostatic discharges and electrical overstress, offering 600 W (10/1000 μs) peak pulse power and a stand-off voltage range from 5 V to 188 V.

Operating Conditions:

• Stand-off voltage: 5 V to 188 V
• Operating temperature: -55 to +150 °C
• Peak pulse power: 600 W (10/1000 μs)
• Low leakage current: 0.2 μA at 25 °C

Absolute Maximum Ratings:

• Max peak pulse voltage (IEC 61000-4-2): 30 kV (Contact discharge), 30 kV (Air discharge)
• Peak pulse power dissipation (10/1000 μs): 600 W
• Max storage temperature: -65 to +150 °C
• Max operating junction temperature: -55 to +150 °C

Key Specs:

• Stand-off voltage (V RM): 5.80 V to 188 V
• Breakdown voltage (V BR) at I BR = 1 mA: 6.45 V to 209 V
• Clamping voltage (V CL) at I PP (10/1000 μs): 10.5 V to 328 V
• Peak pulse current (I PP) (10/1000 μs): 2 A to 57 A
• Leakage current (I RM) at V RM (25 °C): 0.2 μA to 20 μA
• Leakage current (I RM) at V RM (85 °C): 1 μA to 50 μA
• Dynamic resistance (R D) (10/1000 μs): 0.059 Ω to 48.5 Ω

Features:

• Peak pulse power: 600 W (10/1000 μs) and 4 kW (8/20 μs)
• Stand-off voltage range from 5 V to 188 V
• Unidirectional and bidirectional types
• Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C
• Operating Tj max: 150 °C
• High power capability at Tj max: up to 350 W (10/1000 μs)
• Lead finishing: matte tin plating

Applications:

• Protection against electrostatic discharges according to IEC 61000-4-2 and MIL STD 883, method 3015
• Protection against electrical overstress according to IEC 61000-4-4 and 5
• Protection against surges below 600 W (10/1000 μs)
• High-end equipment and SMPS where low leakage current and high junction temperature are required

Package:

• SMB (0.11 g)

• Peak pulse power: 600 W (10/1000 μs) and 4 kW (8/20 μs)
• Stand-off voltage range from 5 V to 188 V
• Unidirectional and bidirectional types
• Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C
• Operating Tj max: 150 °C
• High power capability at T j max.: up to 350 W (10/1000 μs)
• Lead finishing: matte tin plating

To meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status are available at: www.st.com. ECOPACK is an ST trademark.