• Part: UMAFxxxA
  • Manufacturer: Microsemi
  • Size: 181.82 KB
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UMAFxxxA Description

These 500 watt transient voltage suppressors offer power-handling capabilities only found in larger packages. They are also environmentally Lead-Free both externally and internally. They are used for protecting against a variety of transients from inductive switching environments or lower levels of induced secondary lightning effects of IEC61000-4-5.

UMAFxxxA Key Features

  • Available as a unidirectional or bidirectional device (bidirectional with CA suffix)
  • Fast response time
  • Suppresses transients up to 500 W @ 10/1000 µs (see Figure 1, 2, and 3)
  • Robust 2010 MELF style flat package configuration for accurate pick-and-place handling
  • Fits same small narrow PCB pad layouts as “SMAJ” packages in JEDEC DO-214AC (or BA)
  • Very low height profile (approx 1 mm)
  • Available on Tape and Reel
  • Built-in stress relief with similar COE as PC boards
  • Lead-Free construction externally and internally
  • Optional Lead-Tin finish (UMA5.0A-170CA)

UMAFxxxA Applications

  • Protects sensitive ponents such as IC’s, CMOS, 2 Bipolar, BiCMOS, ECL, DTL, T L, etc
  • Protection from switching transients & induced RF
  • pliant to IEC61000-4-2 and IEC61000-4-4 for ESD and EFT protection respectively