Bourns 6000-3R3M Equivalent & Substitute Parts

Part Overview

The Bourns 6000-3R3M is a 3.3 µH unshielded drum core wirewound inductor rated for 5.5 A with a maximum DC resistance of 25 mOhm. This through-hole radial component operates across -55°C to 105°C and is designed for applications requiring moderate inductance values with high current capacity.

The 6000-3R3M is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Suitable alternatives must maintain the same inductance value, current rating, and DC resistance specifications while accommodating different packaging or compliance requirements.

Key Parameters

Parameter	Value
Inductance	3.3 µH
Current Rating	5.5 A
DC Resistance (DCR)	25 mOhm Max
Tolerance	±20%
Core Material	Ferrite
Shielding	Unshielded
Mounting Type	Through Hole
Package / Case	Radial, Vertical Cylinder
Operating Temperature	-55°C ~ 105°C
Q @ Frequency	20 @ 7.96 MHz
Self Resonant Frequency	79 MHz

Substitute Part Grouping Explanation

Substitute parts for the 6000-3R3M are categorized based on electrical and mechanical compatibility:

Direct Equivalents maintain identical electrical specifications (3.3 µH inductance, 5.5 A current rating, 25 mOhm DCR) and mechanical form factor (through-hole radial, vertical cylinder). These parts differ only in packaging format or compliance status.

Similar Alternatives share the same inductance value and core material but may have variations in current rating, DC resistance, or operating temperature range. These parts are suitable only when the application can tolerate the specified parameter differences.

Key substitution criteria:

Inductance value: 3.3 µH (primary requirement)
Current rating: minimum 5.5 A for direct equivalents
DC resistance: maximum 25 mOhm for direct equivalents
Core material: Ferrite (for thermal and frequency characteristics)
Mounting type: Through hole (for form factor compatibility)

Parameter Comparison

Parameter	6000-3R3M	6000-3R3M-RC	4554R-3R3M	AIUR-02H-3R3M
Manufacturer	Bourns Inc.	Bourns Inc.	API Delevan Inc.	Abracon LLC
Inductance	3.3 µH	3.3 µH	3.3 µH	3.3 µH
Current Rating (Amps)	5.5 A	5.5 A	5.5 A	2.7 A
DC Resistance (DCR)	25 mOhm Max	25 mOhm Max	25 mOhm Max	30 mOhm Max
Tolerance	±20%	±20%	±20%	±20%
Core Material	Ferrite	Ferrite	Ferrite	Ferrite
Shielding	Unshielded	Unshielded	Unshielded	Unshielded
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 85°C	-25°C ~ 85°C
Q @ Frequency	20 @ 7.96 MHz	20 @ 7.96 MHz	20 @ 7.96 MHz	15 @ 7.96 MHz
Self Resonant Frequency	79 MHz	79 MHz	79 MHz	Not specified
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Radial, Vertical Cylinder
Product Status	Obsolete	Not For New Designs	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

6000-3R3M-RC (Bourns Inc.) is the primary direct equivalent. It maintains all electrical specifications identical to the original 6000-3R3M while offering ROHS3 compliance and improved availability (2047 pcs in stock). This part is suitable for applications where RoHS compliance is required and the "Not For New Designs" status is acceptable for legacy system support.

4554R-3R3M (API Delevan Inc.) provides a fully active alternative with identical electrical performance (3.3 µH, 5.5 A, 25 mOhm DCR) and ROHS3 compliance. The operating temperature range is reduced to -40°C to 85°C, making this suitable for applications not requiring the extended low-temperature performance of the original part. This option is recommended for new designs requiring a 3.3 µH, 5.5 A inductor.

AIUR-02H-3R3M (Abracon LLC) shares the same inductance and core material but has reduced current rating (2.7 A versus 5.5 A) and slightly higher DC resistance (30 mOhm versus 25 mOhm). This part is suitable only for applications where the current requirement does not exceed 2.7 A and the higher DCR is acceptable. The operating temperature range is further limited to -25°C to 85°C.

Selection should prioritize product status (active preferred), compliance requirements (ROHS3 for new designs), and electrical parameter compatibility with the application's current and temperature demands.

Frequently Asked Questions (FAQ)

Q: Can the 6000-3R3M-RC be used as a direct replacement for the 6000-3R3M?

A: Yes. The 6000-3R3M-RC maintains identical electrical specifications (3.3 µH, 5.5 A, 25 mOhm DCR) and mechanical form factor. The primary differences are packaging format (bulk versus tape & reel) and compliance status (ROHS3 compliant). Both parts are suitable for the same circuit applications.

Q: What is the key limitation of the AIUR-02H-3R3M as a substitute?

A: The AIUR-02H-3R3M has a reduced current rating of 2.7 A compared to the 5.5 A rating of the 6000-3R3M. This part is suitable only for applications where the maximum current does not exceed 2.7 A. Additionally, the DC resistance is 30 mOhm (versus 25 mOhm), which increases power dissipation in the inductor.

Q: Is the 4554R-3R3M suitable for applications requiring the full -55°C to 105°C temperature range?

A: No. The 4554R-3R3M operates from -40°C to 85°C, which does not cover the extended low-temperature range of the original 6000-3R3M. For applications requiring operation below -40°C or above 85°C, the 6000-3R3M-RC is the appropriate choice.

Q: Why is the CW160808-56NJ listed but not recommended as a substitute?

A: The CW160808-56NJ is a surface-mount component with fundamentally different electrical specifications (56 nH inductance, 600 mA current rating) and mechanical form factor (0603 package). It is not electrically compatible with applications designed for the 6000-3R3M and is listed only for reference purposes.

Q: What compliance certifications should I verify for new designs?

A: For new designs, select parts with ROHS3 compliance status. Both the 6000-3R3M-RC and 4554R-3R3M meet this requirement. All listed parts have REACH Unaffected status and EAR99 ECCN classification.

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