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Littelfuse B61089BDR Single-Port SLIC Protectors

Littelfuse B61089BDR Single-Port Subscriber Line Interface Circuit (SLIC) Protectors are battery tracking protectors that protect the SLIC against lightning-induced surges and power fault events. Littelfuse B61089BDR SLIC Protectors consist of a pair of identical protection thyristors integrated with two anti-series diodes. These gated thyristor protectors have a crowbarring function, providing tracking battery protection down to -170V. The anti-series diode provides protection of positive surge events by diverting the surge energy to the ground. B61089BDR has a robust surge current capability, helping telecom and datacom products comply with different surge standards, such as Telcordia GR-1089, ITU-T K.20, K.21, and YD/T950.

Features

  • Single port negative voltage tracking programmable component
  • Supports battery voltages down to -170V
  • 5mA maximum gate triggering current
  • Fails in short circuit condition when surged in excess of ratings to protect all downstream equipment
  • Surge capability does not degrade after multiple surge events within its ratings
  • -150mA minimum high holding current
  • Specified 2/10 limiting voltage
  • Integrated diodes for positive surge protection
  • MSL Level 1 - unlimited
  • RoHS compliant and lead-free

Applications

  • Wireless in the Local Loop (WLL)
  • Voice applications requiring regenerated POTS
  • VoIP
  • PBX
  • FXS
  • Digital Pair Gain (DPG) systems and Digital Loop Carrier (DLC) systems
  • Small Office Home Office (SOHO)

Schematic

Schematic - Littelfuse B61089BDR Single-Port SLIC Protectors

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Littelfuse B61089QDR & B9110DF Dual-Port SLIC Protectors

Dual-port SLIC protectors for two different SLIC tip/ring pairs or SLICs with dual power supplies.

Learn Moreabout Littelfuse B61089QDR & B9110DF Dual-Port SLIC Protectors View Productsrelated to Littelfuse B61089QDR & B9110DF Dual-Port SLIC Protectors
Published: 2021-07-07 | Updated: 2022-03-11