SMBJ40CA

Part: SMBJ Transil™ — STMicroelectronics

Type: Transient Voltage Suppressor (TVS) Diode

Description: The SMBJ Transil series is designed to protect sensitive equipment against electrostatic discharges and electrical over stress, handling surges below 600 W (10/1000 μs) with a stand-off voltage range from 5 V to 188 V.

Operating Conditions:

• Operating junction temperature: -55 to +150 °C
• Stand off voltage range: 5 V to 188 V

Absolute Maximum Ratings:

• Peak pulse power dissipation (Tj initial = Tamb): 600 W (10/1000 μs)
• Max storage temperature: -65 to +150 °C
• Max operating junction temperature: 150 °C
• Max lead temperature for soldering (10 s): 260 °C

Key Specs:

• Stand-off voltage (V_RM): 5.0 V (for SMBJ5.0A/CA) to 188 V (for SMBJ188A/CA)
• Breakdown voltage (V_BR) @ I_R = 1 mA: 11.1 V (min) for SMBJ10A/CA
• Clamping voltage (V_CL) @ I_PP (10/1000 μs): 17 V @ 37 A (max) for SMBJ10A/CA
• Clamping voltage (V_CL) @ I_PP (8/20 μs): 21.7 V @ 184 A (max) for SMBJ10A/CA
• Leakage current (I_RM) @ V_RM: 0.2 μA at 25 °C (for SMBJ10A/CA), 1 μA at 85 °C (for SMBJ10A/CA)
• Dynamic resistance (R_D) (10/1000 μs): 0.127 Ω (for SMBJ10A/CA)
• Dynamic resistance (R_D) (8/20 μs): 0.051 Ω (for SMBJ10A/CA)

Features:

• Peak pulse power: 600 W (10/1000 μs)
• Peak pulse power: 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
• Low leakage current: 1 μA at 85 °C
• Operating Tj max: 150 °C
• High power capability at Tj max: 515 W (10/1000 μs)
• Complies with IEC 61000-4-2 level 4: 15 kV (air discharge), 8 kV (contact discharge)
• Complies with MIL STD 883G, method 3015-7 Class 3B: 25 kV HBM (human body model)

Applications:

• Protection against electrostatic discharges according to IEC 61000-4-2, and MIL STD 883, method 3015
• Protection against electrical over stress 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 (JEDEC DO-214AA)

• ■ Peak pulse power:
• -600 W (10/1000 μ s)
• -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 -1 μA at 85 °C ■ Operating T j max : 150 °C ■ High power capability at T j max : -515 W (10/1000 μs) ■ JEDEC registered package outline Complies with the following standards ■ IEC 61000-4-2 level 4: -15 kV (air discharge) -8 kV (contact discharge) ■ IEC 61000-4-5 ■ MIL STD 883G, method 3015-7 Class 3B: -25 kV HBM (human body model) ■ Resin meets UL 94, V0 ■ MIL-STD-750, method 2026 soldererability ■ EIA STD RS-481 and IEC 60286-3 packing ■ IPC 7531 footprint Description www.datasheet.live

• Case: JEDEC DO-214AA molded plastic over planar junction
• Terminals: solder plated - solderable per MIL-STD-750, Method 2026
• Polarity: for unidirectional types the band indicates cathode
• Flammability: epoxy is rated UL94V-0
• RoHS package

In order 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.

Table 4. SMB dimensions

Figure 13. Footprint dimensions in mm (inches)

Figure 14. Marking layout (1)

1. Marking layout can vary according to assembly location.

Table 5. Marking

Table 5. Marking