SMCJ STMICROELECTRONICS | Alldatasheet

Document overview

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Technical content

Features

■ Peak pulse power: – 1500 W (10/1000 μs) – 10 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 Tjm a x: 150 °C ■ High power capability at Tjm a x: – 1250 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 solderability ■ EIA STD RS-481 and IEC 60286-3 packing ■ IPC 7531 footprint

Description

The SMCJ Transil series has been designed to protect sensitive equipment against electrostatic discharges according to IEC 61000-4-2, and MIL STD 883, method 3015, and electrical over stress according to IEC 61000-4-4 and 5. These devices are more generally used against surges below 1500 W (10/1000 μs). The Planar technology makes it compatible with high-end equipment and SMPS where low leakage current and high junction temperature are required to provide reliability and stability over time. SMCJ are packaged in SMC (SMC footprint in accordance with IPC 7531 standard). TM: Transil is a trademark of STMicroelectroniocs K A Unidirectional Bidirectional SMC (JEDEC DO-214AB)

1 Characteristics

Figure 1. Electrical characteristics - definitions Figure 2. Pulse definition for electrical characteristics Table 1. Absolute maximum ratings (T amb = 25 °C)

  1. For a surge greater than the maximum val ues, the diode will fail in short-circuit.

Table 2. Thermal resistances

Table 3. Electrical characteristics - parameter values (T amb = 25 °C)

  1. To calculate maximum clamping voltage at ot her surge level,use the following formula: VCLmax = VCL - RD x (IPP - IPPappli)
  2. To calculate V BR or VCL versus junction temperature, use the following formulas:
  3. Surge capability given for both directions for unidirectional and bidirectional types.

2 Ordering information scheme

Figure 12. Ordering information scheme

3 Package information

  • Case: JEDEC DO-214AB 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. SMC dimensions Figure 13. Footprint dimensions mm Figure 14. Marking layout (1)

  1. Marking layout can vary according to assembly location.

Table 5. Marking

4 Ordering information

Table 6. Ordering information

5 Revision history

  1. Where xxx is nominal value of V BR and A or CA indicates unidirectional or bidirectional version. See

Table 7. Document revision history August-1999 5A Previous update. 17-Sep-2009 7 Document updated for low leakage current. 12-Jul-2010 8 Changed timescale in Figure 9.