WSLP3921

Part: WSLP3921L2000FEA — Vishay Dale

Type: Power Metal Strip Resistor

Description: Surface-mount Power Metal Strip resistors with very low resistance values (down to 0.0001 Ω) and high power ratings (to 15 W), suitable for current sensing, voltage division, and pulse applications.

Operating Conditions:

• Operating temperature: -65 to +170 °C
• Maximum working voltage: (P x R) 1/2

Key Specs:

• Power rating (at 70 °C): 5.0 W to 15.0 W (model dependent)
• Resistance value range: 0.0001 Ω to 4 mΩ
• Tolerance: 1.0%, 5.0%
• Very low inductance: 0.5 nH to 5 nH
• Low thermal EMF: < 3 μV/°C
• Component temperature coefficient (TCR): Varies by resistance value, e.g., +50 ppm/°C for WSLP3921 (1.5m Ω to 4m Ω) and ±75 ppm/°C for WSLP5931 (1m Ω to 4m Ω)
• Thermal resistance: Varies by resistance value and model, e.g., 0.9 °C/W for WSLP3921 (0.1m Ω)
• Element TCR: < 20 ppm/°C

Features:

• All welded construction
• Proprietary processing technique produces extremely low resistance values, down to 0.0001 Ω
• Sulfur resistance by construction
• Specially selected and stabilized materials allow for high power rating (to 15 W)
• Very low inductance 0.5 nH to 5 nH
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified

Applications:

• Current sensing
• Voltage division
• Pulse applications

Package:

• WSLP3921: 0.394" x 0.205" (10.0 mm x 5.20 mm)
• WSLP5931: 0.591" x 0.305" (15.0 mm x 7.75 mm)

• All welded construction of the Power Metal Strip ® resistors are ideal for all types of current sensing, voltage division and pulse applications
• Proprietary processing technique produces extremely low resistance values, down to 0.0001 Ω
• Sulfur resistance by construction that is unaffected by high sulfur environments
• Specially selected and stabilized materials allow for high power rating (to 15 W)
• Very low inductance 0.5 nH to 5 nH
• Low thermal EMF (< 3 μV/°C)
• AEC-Q200 qualified (1)
• Material categorization: for definitions of compliance please see www.vishay.com/doc?99912

Vishay Dale

• Consult factory for detailed TCR performance across full temperature range as performance is resistance value specific
• 'Temperature Coefficient of Resistance for Current Sensing' white paper: www.vishay.com/doc?30405
• (1) Component TCR - total TCR that includes the TCR effects of the resistor element and the copper terminal
• (2) Element TCR - only applies to the alloy used for the resistor element
• (3) Maximum working voltage - the WSL is not voltage sensitive, but is limited by power / energy dissipation and is also not ESD sensitive