BVR BWL Plastic-Encased Low-Resistance, Low-Inductance Precision Resistors


 Engineered for mission-critical electronics, the BVR BWL series is a molded, fully-insulated resistor family that combines sub-milliohm resistance values with near-zero inductance. Meeting MIL-R-93 standards, these resistors deliver exceptional long-term stability in avionics, power modules, motor drives, test equipment, and high-frequency switching circuits.

Key Advantages
• MIL-R-93 Compliance – Qualified for defense and aerospace applications.
• Molded Construction – Epoxy encapsulation blocks humidity and contaminants.
• Ultra-Low Resistance – From 2 mΩ up to 39 kΩ (±0.1 % to ±5 % tolerance).
• Low Inductance – Ideal for high-speed switching and RF environments.
• Wide Temperature Range – ‑55 °C to +175 °C with linear power derating.
• Proven Reliability – ΔR ≤ ±1 % after 1 000 h load-life at 70 °C.
• RoHS & REACH Compliant – Green, lead-free, halogen-free materials.
Electrical Specifications
TypeRated Power @ 25 °CResistance RangeDimensions L×W×H (mm)
0.5 W0.5 W10 mΩ – 100 Ω7.0 × 3.0 × 0.6
1 W1.0 W2 mΩ – 1 kΩ11.0 × 3.0 × 0.8
3 W3.0 W2 mΩ – 10 kΩ14.8 × 5.2 × 0.8
4 W4.0 W5 mΩ – 15 kΩ19.0 × 7.0 × 1.0
5 W5.0 W5 mΩ – 24 kΩ24.0 × 8.4 × 1.0
7 W7.0 W5 mΩ – 24 kΩ27.0 × 9.5 × 1.0
10 W10.0 W10 mΩ – 39 kΩ46.5 × 10.0 × 1.0
Tolerance & TCR
• Tolerance grades: ±0.1 % (B), ±0.5 % (D), ±1 % (F), ±2 % (G), ±5 % (J)
• Temperature Coefficient: See Figure 2 (down to ±20 ppm/°C on selected values)
Performance Highlights
• Insulation Voltage: 500 V, ΔR ≤ ±0.1 %
• Insulation Resistance: ≥ 1 GΩ
• Terminal Strength: ΔR ≤ ±0.1 % after 10 N pull
• Solderability: 235 °C ± 5 °C, 2 s ± 0.5 s per IEC 68-2-20
• Resistance to Soldering Heat: 350 °C, 3.5 s, ΔR ≤ ±0.1 %
• Steady-State Damp Heat: 40 °C / 93 % RH, 21 days, ΔR ≤ ±0.2 %
Power Derating Curve
Useable to 100 % rated power at 25 °C, linearly derating to 0 % at 175 °C (see derating chart).
Applications
• Current sensing in DC/DC converters, battery-management systems
• High-frequency snubber and gate-drive circuits
• Precision amplifiers, medical instrumentation
• Motor-control inverters, power-factor-correction modules
• Defense & aerospace power distribution
Ordering Information
Example: BVR-5W-1R00-F → 5 W, 1 Ω, ±1 % tolerance, tape-and-reel.
Support & Availability
Stocked globally for same-day dispatch. Custom values, tight tolerances, and non-standard leads available on request. Engineering samples ship within 48 hours.
Contact GoldShield Electronics today for datasheets, SPICE models, and design-in assistance.
https://www.eak.sg/product/bvr-bwl-series-precision-low-resistance-low-inductance-resistors-high-reliability-stable-performance/

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