1008CS-391EJTS

Overview

The 1008CS-391EJTS is a fixed wirewound inductor from Delta Electronics, featuring an unshielded drum core design. It offers an inductance of 390 nH with a tolerance of ±5%. The component supports a rated current of 630 mA and exhibits a DC resistance of 1.12 Ohms. Housed in a 1008 (2520 Metric) surface-mount package, it operates within a temperature range of -40°C to 125°C. The unit utilizes ceramic core material and is supplied in tape and reel packaging for automated assembly processes.

Feature Summary

• Unshielded drum core construction for high-frequency signal integrity
• Ceramic core material ensuring stable electrical performance across wide temperature ranges
• Surface-mount compatibility with standard 1008 footprint dimensions

Applications

• RF circuit filtering and impedance matching networks
• High-frequency power supply output stages
• Signal processing components in communication equipment

Procurement Notes

Verify the specific ordering suffix EJTS matches the required tolerance and packaging configuration. Confirm that the 1008 package dimensions align with the target PCB layout constraints. Ensure the 630 mA current rating satisfies the maximum operational load requirements of the intended application circuit without saturation.

Selection Notes

Select this component when a compact unshielded inductor is required for frequencies around 25 MHz to 100 MHz. The 390 nH value suits applications needing moderate energy storage with low parasitic effects. Consider the 1.12 Ohm DCR impact on efficiency if used in low-voltage power paths. The ceramic core provides thermal stability superior to iron powder alternatives in high-temperature environments.

Part Context

This part belongs to the 1008CS series of wirewound chip inductors manufactured by Delta Electronics. The series is characterized by its open-type construction and ceramic core technology, designed for general-purpose high-frequency applications. The 1008 case size represents a balance between inductance capability and minimal board space consumption.

Replacement Considerations

Direct substitutes include other manufacturers' 1008-sized unshielded drum core inductors with identical 390 nH inductance and comparable current ratings. Verify that alternative parts maintain the same Q-factor characteristics at operating frequencies to ensure circuit performance parity.