| PartNumber | RWR89SR309DRRSL | RWR89SR309DRS73 | RWR89SR309DRBSL |
| Description | RES WW ESS-2B .309 .5% - Tape and Reel (Alt: RWR89SR309DRRSL) | Res Wirewound 0.309 Ohm 0.5% 3W ±650ppm/°C 0.01% Ceramic Hi Temp Sil AXL Thru-Hole T/R - Tape and Reel (Alt: RWR89SR309DRS73) | RES WW ESS-2B .309 .5% - Bulk (Alt: RWR89SR309DRBSL) |