Vishay RWR89S4121FR Resistors – LOT OF 16

📋 Specifications (from Vishay datasheet)

• Series & Qualification: RWR89S wirewound, inductive, silicone‑coated, axial lead — qualified under MIL‑PRF‑39007 for military-established reliability  .

• Power Rating: 3 W (at 25 °C) .

• Resistance: 4.12 kΩ.

• Tolerance: ±1% (F code)

• Temperature Coefficient: typically ±20 ppm/°C

• Operating Temperature: –55 °C to +250 °C

• Failure Rate: “R” => 0.01% per 1,000 hrs

• Dielectric Withstanding Voltage: 1000 VRMS (1 minute)

• Short-Time Overload (5 s): ≤ ±0.2% +0.005 Ω

• Dimensions: ~0.560″ L × 0.187″ Dia (14.22 × 4.75 mm)

🛠️ Ideal Use Cases

• High‑reliability/military environments requiring tight tolerance and low failure rates.

• High-temperature applications (up to 250 °C).

• Circuits needing inductive wirewound resistors (as opposed to non‑inductive types).