Vishay

RMKMS408-1K5BWT

RMKMS408-1K5BWT Description

The RMKMS408-1K5BWT from Vishay is a high-precision thin-film resistor network designed for demanding applications requiring tight tolerance and low temperature coefficient. This 4-resistor isolated network features a 1.5 kΩ resistance value per element with an exceptional ±0.1% tolerance and a ±10/±15 ppm/°C temperature coefficient, ensuring stable performance across a wide operating temperature range of -55°C to +125°C. Housed in an 8-pin SO (Small Outline) molded package, it offers surface-mount gull-wing terminations with a 1.27 mm pitch, making it suitable for automated PCB assembly. The device delivers a total power rating of 250 mW (1/4 W) and 50 mW per resistor, with a maximum voltage rating of 50 V. Compliant with EU RoHS, it is supplied in tape and reel (T/R) packaging for streamlined production.

RMKMS408-1K5BWT Features

• Precision Performance: Ultra-tight ±0.1% tolerance and ±10/±15 ppm/°C TCR for minimal drift.
• Robust Construction: Molded SO package ensures durability and reliability in harsh environments.
• High Power Handling: 250 mW total power (50 mW per resistor) with derated operation up to 125°C.
• Space-Efficient Design: Compact 4.98 mm × 6.2 mm × 1.73 mm footprint ideal for dense PCB layouts.
• Automation-Friendly: Gull-wing SMD terminations and tape-and-reel packaging for high-volume assembly.
• Isolated Circuit Design: 4 independent resistors with 50 V maximum voltage rating, suitable for signal isolation.

RMKMS408-1K5BWT Applications

This resistor network excels in precision analog and digital circuits, including:

• Medical Equipment: Patient monitoring systems, diagnostic devices.
• Industrial Automation: PLCs, sensor interfaces, and control systems.
• Test & Measurement: Calibration instruments, data acquisition modules.
• Telecommunications: Signal conditioning, impedance matching.
• Automotive Electronics (non-AECQ): Infotainment, dashboard controls (note: not PPAP/automotive-qualified).

Conclusion of RMKMS408-1K5BWT

The RMKMS408-1K5BWT combines high precision, thermal stability, and compact design, making it a superior choice for applications demanding repeatable performance. Its thin-film technology and isolated network configuration provide unmatched accuracy for critical circuits, while its industry-standard package ensures compatibility with modern SMT processes. Ideal for engineers prioritizing reliability, miniaturization, and low drift, this Vishay resistor network stands out in precision electronics.