Bourns 6000-681K-RC Equivalent & Substitute Parts

Part Overview

The Bourns 6000-681K-RC is a 680 µH unshielded drum core wirewound inductor rated for 590 mA with a maximum DC resistance of 1.6 Ohm. This through-hole component features a radial, vertical cylinder package and operates across a temperature range of -55°C to 105°C. The part is classified as "Not For New Designs," indicating it has been superseded in the product line. Identifying equivalent substitute parts is necessary for applications requiring continued support, inventory replenishment, or design migration to active product alternatives.

Substiute Parts

6000-681K-RC

Bourns Inc.In Stock: 11556000-681K-RC Datasheet

Current PartRFQ

RLB9012-681KL

Bourns Inc.In Stock: 9736RLB9012-681KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns RLB9012-681KL qualifies as a direct substitute for the 6000-681K-RC based on the following critical parameters:

• Inductance value: 680 µH (identical)
• Current rating: 590 mA (identical)
• DC resistance: 1.6 Ohm Max (identical)
• Tolerance: ±10% (identical)
• Core material and type: Ferrite, unshielded drum core (identical)
• Mounting configuration: Through hole, radial vertical cylinder (identical)
• Physical footprint: 0.354" Dia (9.00mm), Height 0.480" (12.20mm) (identical)
• Q factor: 20 @ 796 kHz (identical)
• Self resonant frequency: 1.6 MHz (identical)

The RLB9012-681KL represents an active product line alternative with enhanced operating temperature range and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The RLB9012-681KL is the appropriate substitute for the 6000-681K-RC. The substitute part maintains electrical and mechanical equivalence across all critical parameters while offering the advantage of active product status. Both parts meet ROHS3 and REACH compliance requirements. The RLB9012-681KL provides an extended operating temperature range to 125°C compared to the original part's 105°C maximum, offering improved thermal margin for demanding applications. The substitute is available in tray packaging, which may require adjustment to procurement and handling procedures compared to the bulk packaging of the original part.

Frequently Asked Questions (FAQ)

Q: Are the 6000-681K-RC and RLB9012-681KL electrically interchangeable?

A: Yes. Both parts share identical inductance (680 µH), current rating (590 mA), DC resistance (1.6 Ohm Max), tolerance (±10%), Q factor (20 @ 796 kHz), and self resonant frequency (1.6 MHz). They are electrically equivalent for circuit applications.

Q: What is the difference in operating temperature range?

A: The 6000-681K-RC operates from -55°C to 105°C, while the RLB9012-681KL operates from -55°C to 125°C. The substitute provides a 20°C higher upper temperature limit.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical footprints: 0.354" diameter (9.00mm) and 0.480" seated height (12.20mm). They are mechanically compatible for through-hole PCB mounting in radial, vertical cylinder orientation.

Q: What packaging differences exist between these parts?

A: The 6000-681K-RC is supplied in bulk packaging, while the RLB9012-681KL is supplied in tray packaging. This affects handling, storage, and procurement workflows but does not impact electrical or mechanical performance.

Q: Do both parts meet compliance requirements?

A: Yes. Both the 6000-681K-RC and RLB9012-681KL are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.

Q: Why is the 6000-681K-RC marked "Not For New Designs"?

A: This designation indicates the part has been superseded by the RLB9012-681KL in Bourns' active product portfolio. New designs should specify the RLB9012-681KL to ensure long-term availability and support.