The recommended land pattern for ESR03EZPJ390 can be found in ROHM's Chip Resistor Land Pattern document, which provides guidelines for pad size, spacing, and layout to ensure reliable mounting and soldering.
While the datasheet specifies an operating temperature range of -55°C to 155°C, ROHM recommends derating the resistor's power rating at high temperatures. For example, at 125°C, the power rating is derated to 50% of the maximum value. Consult ROHM's application notes for more information.
ESR03EZPJ390 is a general-purpose chip resistor, and its high-frequency characteristics are not explicitly specified in the datasheet. However, ROHM's chip resistors are designed to have low inductance and capacitance, making them suitable for high-frequency applications up to several hundred MHz. For critical high-frequency designs, consider using ROHM's high-frequency chip resistors, such as the MCR series.
While ESR03EZPJ390 is designed to be resistant to moisture, it's still important to follow proper handling and storage procedures to prevent moisture absorption. ROHM recommends storing the resistors in a dry, cool place, and avoiding exposure to high humidity or moisture during assembly and operation.
ROHM recommends a soldering profile with a peak temperature of 260°C, a dwell time of 10-30 seconds, and a cooling rate of 4°C/s or less. Consult ROHM's soldering guidelines document for more detailed information and specific recommendations for different soldering methods.
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