Bourns 6000-6R8M-RC Equivalent & Substitute Parts

Part Overview

The Bourns 6000-6R8M-RC is a 6.8 µH unshielded drum core wirewound inductor rated for 4.1 A with a maximum DC resistance of 35 mOhm. 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," making identification of active equivalent components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Inductance	6.8 µH
Inductance Tolerance	±20%
Current Rating	4.1 A
DC Resistance (Max)	35 mOhm
Core Material	Ferrite
Shielding	Unshielded
Package Type	Radial, Vertical Cylinder
Mounting Type	Through Hole
Physical Dimensions	0.354" Dia (9.00mm) × 0.480" Height (12.20mm)
Operating Temperature Range	-55°C to 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 6000-6R8M-RC is determined by strict equivalence across the following electrical and mechanical parameters:

Inductance value: 6.8 µH with ±20% tolerance
Current rating: 4.1 A minimum
DC resistance: 35 mOhm maximum
Core material: Ferrite, unshielded drum core
Package configuration: Radial, vertical cylinder through-hole
Physical footprint: 0.354" diameter × 0.480" maximum height
Compliance certifications: ROHS3 Compliant, REACH Unaffected

The RLB9012-6R8ML meets all electrical and mechanical substitution criteria. The primary distinction is product status: the 6000-6R8M-RC is obsolete (Not For New Designs), while the RLB9012-6R8ML is an active production component from the same manufacturer.

Parameter Comparison

Parameter	6000-6R8M-RC	RLB9012-6R8ML	Match Status
Inductance	6.8 µH	6.8 µH	Equivalent
Inductance Tolerance	±20%	±20%	Equivalent
Current Rating (Amps)	4.1 A	4.1 A	Equivalent
DC Resistance (Max)	35 mOhm	35 mOhm	Equivalent
Core Material	Ferrite	Ferrite	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Q @ Frequency	20 @ 7.96 MHz	20 @ 7.96 MHz	Equivalent
Self Resonant Frequency	29 MHz	29 MHz	Equivalent
Package / Case	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Equivalent
Size / Dimension	0.354" Dia (9.00mm)	0.354" Dia (9.00mm)	Equivalent
Height - Seated (Max)	0.480" (12.20mm)	0.480" (12.20mm)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Operating Temperature Range	-55°C to 105°C	-55°C to 125°C	RLB9012 Extended
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Product Status	Not For New Designs	Active	RLB9012 Active

Engineering Selection Recommendations

The RLB9012-6R8ML is a direct functional equivalent to the 6000-6R8M-RC across all critical electrical and mechanical parameters. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The RLB9012-6R8ML offers the advantage of active product status, ensuring continued availability and manufacturing support. The extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) provides additional thermal margin for applications requiring higher temperature operation.

For applications limited to the original -55°C to 105°C range, both parts are functionally interchangeable. Packaging differs between bulk (6000-6R8M-RC) and tray (RLB9012-6R8ML) configurations; component selection should account for procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can the RLB9012-6R8ML replace the 6000-6R8M-RC in existing designs?

A: Yes. The RLB9012-6R8ML is electrically and mechanically equivalent across all specified parameters, including inductance, current rating, DC resistance, core material, package type, and physical dimensions. Both components are ROHS3 compliant.

Q: What is the difference in operating temperature range?

A: The 6000-6R8M-RC operates from -55°C to 105°C. The RLB9012-6R8ML extends the upper limit to 125°C. For applications operating within -55°C to 105°C, both parts perform identically. Applications requiring operation above 105°C must use the RLB9012-6R8ML.

Q: Are there packaging differences between these parts?

A: Yes. The 6000-6R8M-RC is supplied in bulk packaging, while the RLB9012-6R8ML is supplied in tray packaging. Physical component dimensions and PCB footprints are identical.

Q: Why is the 6000-6R8M-RC marked "Not For New Designs"?

A: This designation indicates the part is obsolete and no longer recommended for new product development. The RLB9012-6R8ML is the active equivalent and should be used for all new designs and ongoing production.

Q: Are both parts from the same manufacturer?

A: Yes. Both the 6000-6R8M-RC and RLB9012-6R8ML are manufactured by Bourns Inc.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching inductance (6.8 µH ±20%), current rating (4.1 A), DC resistance (35 mOhm max), core material (ferrite, unshielded), package type (radial, vertical cylinder through-hole), and physical dimensions (0.354" diameter × 0.480" height).

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