Bourns 6000-470K Equivalent & Substitute Parts

Part Overview

The Bourns 6000-470K is a 47 µH unshielded drum core wirewound inductor rated for 1.77 A with a maximum DC resistance of 160 mOhm. This through-hole radial component operates across -55°C to 105°C and features a ferrite core with ±10% inductance tolerance. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Inductance	47 µH
Current Rating	1.77 A
DC Resistance (DCR)	160 mOhm Max
Tolerance	±10%
Core Material	Ferrite
Shielding	Unshielded
Mounting Type	Through Hole
Package	Radial, Vertical Cylinder
Operating Temperature	-55°C ~ 105°C
Q @ Frequency	30 @ 2.52 MHz
Self Resonant Frequency	6.5 MHz

Substitute Part Grouping Explanation

Substitute parts for the 6000-470K are identified based on strict electrical and mechanical parameter matching within the Bourns inductor product family. The primary substitution criterion is functional equivalence across inductance value, current rating, DC resistance, core material, and mounting configuration.

Direct Electrical Equivalents (Same Inductance & Current Rating):

6000-470K-RC: Identical electrical specifications (47 µH, 1.77 A, 160 mOhm DCR) with improved RoHS3 compliance. Differs only in packaging (Bulk vs. standard) and product status (Not For New Designs).

Cross-Series Consideration:

CW160808-56NJ: This part operates in a fundamentally different electrical domain (56 nH vs. 47 µH inductance, 600 mA vs. 1.77 A current rating, surface mount vs. through-hole). This component is listed as a substitute reference but does not meet the electrical parameter requirements for direct substitution in applications designed for the 6000-470K.

Parameter Comparison

Parameter	6000-470K	6000-470K-RC	CW160808-56NJ
Inductance	47 µH	47 µH	56 nH
Current Rating (Amps)	1.77 A	1.77 A	600 mA
DC Resistance (DCR)	160 mOhm Max	160 mOhm Max	310 mOhm
Tolerance	±10%	±10%	±5%
Core Material	Ferrite	Ferrite	Alumina
Shielding	Unshielded	Unshielded	Unshielded
Mounting Type	Through Hole	Through Hole	Surface Mount
Package / Case	Radial, Vertical Cylinder	Radial, Vertical Cylinder	0603 (1608 Metric)
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-40°C ~ 125°C
Q @ Frequency	30 @ 2.52 MHz	30 @ 2.52 MHz	35 @ 250 MHz
Self Resonant Frequency	6.5 MHz	6.5 MHz	1.9 GHz
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Not For New Designs	Active

Engineering Selection Recommendations

For Direct Replacement (Electrical Equivalence): The 6000-470K-RC is the only functionally equivalent substitute. It maintains identical inductance (47 µH), current rating (1.77 A), DC resistance (160 mOhm), and core material (ferrite). The 6000-470K-RC achieves ROHS3 compliance, addressing regulatory requirements absent in the original obsolete part. Both components share identical through-hole radial mounting and operating temperature range (-55°C ~ 105°C). Selection of 6000-470K-RC is appropriate for applications requiring direct electrical and mechanical compatibility with existing PCB layouts and circuit designs.

For New Design Consideration: The CW160808-56NJ is not suitable as a direct replacement due to fundamental electrical parameter mismatches: inductance value (56 nH vs. 47 µH), current rating (600 mA vs. 1.77 A), and mounting technology (surface mount vs. through-hole). This component operates in a different frequency domain (1.9 GHz self-resonant frequency vs. 6.5 MHz) and is intended for high-frequency applications distinct from the 6000-470K design space.

Frequently Asked Questions (FAQ)

Q: Can the 6000-470K-RC be used as a direct replacement for the 6000-470K? A: Yes. The 6000-470K-RC provides complete electrical and mechanical equivalence with identical inductance (47 µH), current rating (1.77 A), DC resistance (160 mOhm), core material (ferrite), and through-hole radial package. No circuit modifications are required. The primary difference is improved RoHS3 compliance in the -RC variant.

Q: Why is the CW160808-56NJ listed as a substitute if it has different electrical parameters? A: The CW160808-56NJ is listed as a cross-reference within the Bourns product family but does not meet substitution criteria for the 6000-470K. This component operates at different inductance (56 nH), current (600 mA), and frequency (1.9 GHz) specifications. It is suitable only for applications with fundamentally different electrical requirements and surface-mount assembly processes.

Q: What are the key parameters that determine substitution compatibility? A: Substitution compatibility for the 6000-470K is determined by: inductance value (47 µH), current rating (1.77 A), DC resistance (160 mOhm maximum), core material (ferrite), shielding configuration (unshielded), and mounting type (through-hole radial). Deviations in any of these parameters indicate the component is not a direct substitute.

Q: Does the 6000-470K-RC packaging difference affect circuit performance? A: No. The packaging difference (Bulk vs. standard) is a supply and handling specification only. It does not affect electrical performance, thermal characteristics, or mechanical fit in the circuit.

Q: What is the operating temperature range for substitute parts? A: The 6000-470K and 6000-470K-RC both operate across -55°C to 105°C. The CW160808-56NJ operates across -40°C to 125°C, but this extended range is irrelevant for substitution purposes given the fundamental electrical incompatibility of that component.

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