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STMICROELECTRONICS SMM4F50ATR Transient Voltage Suppressor

The SMM4F Transil series protects sensitive electronic circuits against electro-static discharges and electrical over-stress, meeting IEC 61000-4-2 and MIL STD standards. Crafted with planar technology, these unidirectional devices feature low leakage current, high junction temperature resilience up to 175°C, and robust peak pulse power dissipation of 400 W for surge protection below 400 W 10/1000 us. Packaged in a compact STmite flat form, they offer minimal PCB footprint, making them ideal for high-end equipment, SMPS, and space-constrained environments, ensuring reliable long-term operation and safety margin enhancement.

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Part No:SMM4F5-0A-TR
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Inv Date:06-12-2026
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STMICROELECTRONICS SMM4F50ATR Transient Voltage Suppressor Specifications:

  • Peak pulse power dissipation: 400 W (10/1000 ps), 2.4 kW (8/20 us)
  • Stand-off voltage range: 5 V to 33 V
  • Operating junction temperature max: 175 °C
  • Storage temperature range: -65°C to +175°C
  • Peak pulse voltage IEC 61000-4-2 contact discharge: 30 kV
  • Peak pulse current non-repetitive surge: 30 A
  • Thermal resistance junction to leads: 20°C/W
  • Junction to ambient on PCB: 250°C/W
  • Package: JEDEC DO-222AA, RoHS, halogen-free
  • Soldering temperature: 260°C for 10 sec
  • Polarity: Cathode band for unidirectional types
  • Certification: IEC and MIL STD compliance, UL94V-0 epoxy flammability rating
  • Dimensions (flat package): Length 3.60–3.90 mm, Width 1.75–2.05 mm, Height 0.80–0.95 mm
  • Lead material: Solderable, plated
  • Polarity indication: Band marking for unidirectional devices
  • Mounting: Surface-mount with space-efficient footprint
  • Stand-off voltage options: 5 V, 6 V, 8.5 V, 10 V, 12 V, 13 V, 15 V, 18 V, 20 V, 24 V, 26 V, 28 V, 33 V
  • Surge rating: 400 W (flat package), compatible with IEC 61000-4-2 and MIL STD 883G-Method 3015
  • Designed for high reliability in sensitive, space-constrained electronics applications

Buy the STMicroelectronics SMM4F50ATR – Reliable Surge Suppressor for Industrial Applications

Protect your sensitive electronic equipment from electro-static discharges and electrical surges with the SMM4F Transil series. These high-reliability unidirectional devices feature low leakage current, withstand high junction temperatures up to 175°C, and deliver peak pulse power of 400 W for surge suppression under IEC 61000-4-2 standards. Compact and surface-mountable, the SMM4F is ideal for confined spaces, high-end electronics, and SMPS applications, providing long-term stability, safety margins, and compliance with global standards. Order online now to safeguard your devices efficiently.

Buy STMicroelectronics SMM4F50ATR now and experience unmatched reliability and performance in surge protection for high-end electronic systems.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS SMM4F50ATR?

You can click on the BUY or RFQ button to purchase SMM4F50ATR from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part SMM4F50ATR?

You can download the SMM4F50ATR datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of SMM4F50ATR?

STMICROELECTRONICS

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