Datasheet4U Logo Datasheet4U.com

UM9989 - FAST MRI PROTECTION DIODES

Datasheet Summary

Description

KEY

Features

  • WWW . Microsemi . C OM The UM9989 diode series was designed to protect MRI receivers from high RF energy fields including long RF pulses and RF spike pulses present in most MRI machines. The UM9989 acts as a passive protector (limiter) for the MRI receiver. No forward bias voltage is required to turn on the diode. It is selfbiased by the RF transmitter pulse power. A switch driver is not needed for this receiver protection.

📥 Download Datasheet

Datasheet preview – UM9989

Datasheet Details

Part number UM9989
Manufacturer Microsemi Corporation
File Size 266.52 KB
Description FAST MRI PROTECTION DIODES
Datasheet download datasheet UM9989 Datasheet
Additional preview pages of the UM9989 datasheet.

📁 Similar Datasheet

  • UM9926 - N-Ch 20V Fast Switching MOSFETs (UnitPower)
  • UM9926B - Dual N-Channel Enhancement Mode MOSFET (UniverChipSemi)
  • UM9007 - CRT Controller (UMC)
  • UM91210 - TONE/PULSE DIALER (UMC Corporation)
  • UM91214 - Tone / Pulse Dialer (UMC Corporation)
  • UM91214 - Tone / Pulse Dialer (UMC)
  • UM91215 - Tone / Pulse Dialer (UMC Corporation)
  • UM91215B - Tone / Pulse Dialer (Unicorn Microelectronics Corp)
  • UM91230 - TONE/PULSE DIALER (UMC Corporation)
  • UM91260 - (UM91260 / UM91266) 10 MEMORY TONE /PULSE DIALER (UMC Corporation)
Other Datasheets by Microsemi Corporation
  • UM9995 - ULTRA LOW MAGNETIC MRI SWITCHING DIODES
  • UM9552 - PIN DIODE ATTENUATOR

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com UM9989 FAST MRI PROTECTION DIODES DESCRIPTION KEY FEATURES WWW . Microsemi . C OM The UM9989 diode series was designed to protect MRI receivers from high RF energy fields including long RF pulses and RF spike pulses present in most MRI machines. The UM9989 acts as a passive protector (limiter) for the MRI receiver. No forward bias voltage is required to turn on the diode. It is selfbiased by the RF transmitter pulse power. A switch driver is not needed for this receiver protection application. Receiver protector diodes appear directly across the input port of the receiver. They are connected in anti-parallel pairs to limit the RF carrier excursion in both polarities.
Published: |