SMP75 STMICROELECTRONICS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 9

Technical content

Features

■ bidirectional crowbar protection ■ voltage: 8 V ■ low leakage current: IR = 2 µA max ■ holding current: IH = 150 mA min ■ repetitive peak pulse current: IPP = 75 A (10/1000 µs) Benefits ■ Trisils are not subject to ageing and provide a fail safe mode in short circuit for a better protection. ■ This device can be used to help equipment to meet main standards such as UL1950, IEC 950 / CSA C22.2 and UL1459. ■ Trisils have UL94 V0 approved resin. ■ SMB package is JEDEC registered (DO-214AA). ■ Trisils comply with the following standards: – GR-1089 Core – ITU-T -K20/K21 – VDE0433 – VDE0878 – IEC 61000-4-5 – FCC part 68

Applications

Any sensitive equipment requiring protection against lightning strikes and power crossing: ■ Ethernet, ■ T1/E1 TM: Trisil is a trademark of STMicroelectronics. Figure 1. Device configuration

Description

The SMP75 is a very low voltage transient surge arrestor especially designed to protect sensitive telecommunication equipment against lightning strikes and other transients. Its low voltage makes it suitable to protect low voltage transformer in T1/E1 and Ethernet links without saturation of the transformer. SMB (JEDEC DO-214AA)

1 Characteristics

Table 1. In compliance with the following standards

Table 2. Absolute ratings (T amb = 25 °C)

12.2 A²s

  1. In fail safe mode, the device acts as a short circuit.

Table 3. Thermal resistances Table 4. Electrical characteristics - definitions (T amb = 25 °C)

2 Ordering information scheme

Figure 10. Ordering information scheme

3 Package information

  • Epoxy meets UL94, V0
  • Lead-free 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.

Figure 11. Footprint (dimensions in mm) Table 6. SMB Dimensions

4 Ordering information

5 Revision history

Table 7. Ordering information Table 8. Document revision history 02-Jan-2006 4 Added ECOPACK statement and changed page layout. Minor updates to technical values in Tables 1, 2, and 4.