6000-391K-RC Equivalent & Substitute Parts

Part Overview

The 6000-391K-RC is a 390 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 740 mA with a maximum DC resistance of 1 Ohm. This through-hole component features a radial, vertical cylinder package and operates across the temperature range of -55°C to 105°C. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this inductor specification remains functionally required.

Substiute Parts

6000-391K-RC

Bourns Inc.In Stock: 11266000-391K-RC Datasheet

Current PartRFQ

RLB9012-391KL

Bourns Inc.In Stock: 2090RLB9012-391KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6000-391K-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 390 µH with ±10% tolerance
• Current rating: 740 mA minimum
• DC resistance: 1 Ohm maximum
• Core material and shielding: Ferrite, unshielded
• Physical form factor: Radial, vertical cylinder through-hole package
• Dimensional compatibility: 0.354" diameter, 0.480" maximum height
• Electrical performance: Q factor and self-resonant frequency within specified ranges

The RLB9012-391KL meets all these criteria and is identified as a direct substitute. Both parts share identical inductance, current rating, DC resistance, core type, shielding configuration, mounting method, and physical dimensions. Packaging format differs (bulk versus tray), and the substitute operates across an extended temperature range (-55°C to 125°C versus -55°C to 105°C).

Parameter Comparison

*The RLB9012-391KL operates across a wider temperature range, making it suitable for applications requiring the original part's temperature specification.

Engineering Selection Recommendations

The RLB9012-391KL is the direct equivalent substitute for the 6000-391K-RC. Both components are manufactured by Bourns Inc. and maintain identical electrical and mechanical specifications across all critical parameters: inductance, current rating, DC resistance, core composition, shielding, mounting configuration, and physical dimensions.

The RLB9012-391KL offers two advantages over the original part:

1. Active product status: The substitute is currently in active production, ensuring long-term availability and supply chain reliability.
2. Extended operating temperature range: The substitute operates to 125°C versus 105°C for the original, providing additional thermal margin in applications approaching the upper temperature limit.

Both parts carry ROHS3 compliance and are suitable for equivalent circuit applications. The packaging difference (tray versus bulk) does not affect functional performance and reflects standard distribution practices for active versus legacy products.

Frequently Asked Questions (FAQ)

Q: Can the RLB9012-391KL be used as a direct replacement for the 6000-391K-RC in existing designs?

A: Yes. The RLB9012-391KL is electrically and mechanically equivalent to the 6000-391K-RC across all functional parameters. Both components share identical inductance (390 µH), current rating (740 mA), DC resistance (1 Ohm maximum), core type, shielding, mounting method, and physical dimensions. No circuit modifications are required.

Q: What is the difference in packaging between these two parts?

A: The 6000-391K-RC is supplied in bulk packaging, while the RLB9012-391KL is supplied in tray packaging. This difference reflects the product lifecycle status: the original part is not recommended for new designs, while the substitute is in active production. Packaging format does not affect component performance or electrical characteristics.

Q: Does the extended temperature range of the RLB9012-391KL affect compatibility?

A: No. The RLB9012-391KL operates from -55°C to 125°C, which encompasses the original part's operating range of -55°C to 105°C. The extended upper temperature limit provides additional thermal margin and does not introduce any compatibility issues. Applications operating within the original temperature specification will function identically with the substitute.

Q: Are both parts RoHS compliant?

A: Yes. Both the 6000-391K-RC and RLB9012-391KL are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

Q: Why is the 6000-391K-RC marked "Not For New Designs"?

A: This designation indicates that Bourns Inc. has superseded this part in favor of the RLB9012-391KL series. The substitute offers equivalent performance with the advantage of active production status and extended temperature range. For new circuit designs, the RLB9012-391KL is the recommended choice.