B61089BDR - B61089BDR Series

Series: B61089BDR
Questions? Contact Littelfuse Support
Littelfuse SIDACtor B61089BDR image
Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The B61089BDR is a single channel SLIC ( Subscriber Line Interface circuit ) battery tracking protector. It consists of a pair of identical protection thyristors integrated with two anti-series diodes to protect the SLIC against lightning induced surges and power fault events. The gated thyristor protectors which have crowbarring function, provide tracking battery protection down to -170V. The anti-series diode provides protection of positive surge events by diverting the surge energy to the ground. The B61089BDR has a robust surge current capability which help the telecom and datacom products to comply with different surge standards such as Telcordia GR-1089, ITU-T K.20, K.21 and YD/ T950. For compliance with Enhanced Levels test conditions of ITU-T, TIA968-B, or GR-1089, additional series resistance in the Tip / Ring pairs may be required. The SLIC chipset voltage reference may change as the on-hook/ off-hook line condition changes. Therefore, this component is referenced to the - VBAT so that its negative protection threshold follows this changing reference voltage level. This B61089BDR utilizes a transistor gain network so that a low 5 mA current level will activate the thyristor based portion of this protector component during negative events. This also allows an easier turn on during slow rising power fault events. For all positive disturbances, the fast switching diode connected to earth reference will provide the needed protection.

Features:

  • Single port negative voltage tracking programmable component
  • Supports battery voltages down to -170V
  • Low gate triggering current 5 mA max
  • Fails in a short circuit condition when it is surged in excess of its ratings to protect all downstream equipment
  • Surge capability does not degrade after multiple surge events within its ratings
  • High holding current -150mA min
  • 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 which require regenerated POTS
  • VoIP applications
  • PBX
  • FXS applications
  • Digital Pair Gain systems (DPG) and Digital Loop Carrier systems (DLC)
  • Small Office Home Office (SOHO)
Check Stock Order Samples
Property (Mouseover for details) Value
IDRM @ VDRM (μA) 5
Holding Current (mA) 150
Partner ECAD Models B61089BDR
Regulatory Requirements GR1089 INTRA-BUILDING
GR1089 I
Ipp2x10 120
Ipp5x310 70
Ipp8x20 170
Peak Off-State Voltage Tip to Ring (V) 170
Pins Tip to Ring 6-18
Pins Tip to Ground 6-45
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
B61089BDR "SPSP, 170V, 35A SOIC, 8L, RoHS" RoHS No 10/12/2021 PbFree No 10/12/2021 Yes
10/12/2021
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.