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ROHM SDR01 Series: High-Power Anti-Surge Resistors in 0402 Size

ROHM has launched the SDR01 Series of high anti-surge chip resistors that deliver 0.33 W rated power in the ultra-compact 0402 (1005 Metric) package. The series combines high surge resistance, thermal stability and small size for dense automotive, industrial, consumer and AI server applications.

Key Specifications

• Package size: 1.00 × 0.50 × 0.35 mm (0402 / 1005 Metric)
• Rated power: 0.33 W
• Rated terminal temperature: 125°C
• Resistance range: 10 Ω to 2.2 MΩ
• Tolerance: ±1% (F-class)
• TCR: ±100 ppm/°C
• Type: High anti-surge chip resistor

Optimized resistive-element and electrode design allows the SDR01 Series to maintain full 0.33 W power rating up to 125°C terminal temperature. This makes the resistors suitable for high-density mounting and placement near heat-generating components while improving surge and ESD withstand capability compared with conventional 0402 resistors.

Target Applications

• Automotive electronics (power supply, control and interface circuits)
• Industrial equipment
• Consumer electronics
• AI servers and high-density computing
• Power supply and peripheral interface circuits

The compact size enables designers to replace larger resistors or reduce the number of components, helping shrink PCB area without sacrificing reliability in surge-prone environments.

Source:  Electronics For You