Bourns 5632-RC 10mH Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5632-RC is a 10 mH unshielded drum core wirewound inductor rated for 1.5 A with a maximum DC resistance of 1.56 Ohm. This through-hole radial component operates across the temperature range of -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Inductance	10 mH
Current Rating	1.5 A
DC Resistance (Max)	1.56 Ohm
Tolerance	±10%
Core Material	Ferrite
Shielding	Unshielded
Mounting Type	Through Hole
Package Type	Radial, Vertical Cylinder
Operating Temperature	-55°C ~ 105°C
Inductance Test Frequency	1 kHz

Substitute Part Grouping Explanation

Substitution eligibility for the 5632-RC is determined by the following critical parameters:

Inductance Value: Must be 10 mH (±10% tolerance)
Current Rating: Must support minimum 1.5 A continuous operation
DC Resistance: Must not exceed 1.56 Ohm maximum
Core Type: Ferrite drum core construction
Shielding: Unshielded configuration
Mounting: Through-hole radial vertical cylinder package
Frequency Specification: 1 kHz inductance test standard

The substitute parts listed below meet these electrical and mechanical requirements and are sourced from active product lines, ensuring long-term availability and supply chain stability.

Parameter Comparison

Parameter	5632-RC (Bourns)	1140-103K-RC (Bourns)	1539M32 (Hammond)
Inductance	10 mH	10 mH	10 mH
Current Rating (Amps)	1.5 A	1 A	1.5 A
DC Resistance (Max)	1.56 Ohm	2.76 Ohm	1.55 Ohm
Tolerance	±10%	±10%	±10%
Core Material	Ferrite	Ferrite	Ferrite
Shielding	Unshielded	Unshielded	Unshielded
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Vertical Cylinder	Radial, Vertical Cylinder	Radial, Vertical Cylinder
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Not specified
Inductance Test Frequency	1 kHz	1 kHz	1 kHz
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent: Hammond 1539M32

The Hammond 1539M32 provides the closest electrical match to the 5632-RC. It maintains identical inductance (10 mH), current rating (1.5 A), and nearly equivalent DC resistance (1.55 Ohm vs. 1.56 Ohm maximum). Both components share ferrite drum core construction, unshielded configuration, and through-hole radial mounting. The 1539M32 is an active product with ROHS3 compliance, ensuring procurement availability and regulatory alignment.

Alternative Substitute: Bourns 1140-103K-RC

The Bourns 1140-103K-RC maintains the same inductance value (10 mH) and core construction as the 5632-RC. However, this part operates at a reduced current rating of 1 A and exhibits higher DC resistance of 2.76 Ohm maximum. This substitute is suitable only for applications where the circuit current demand does not exceed 1 A. The 1140-103K-RC is an active Bourns product with ROHS3 compliance and represents a cost-effective alternative for lower-current designs.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 1140-103K-RC replace the 5632-RC in all applications?

A: No. The 1140-103K-RC is rated for 1 A maximum current, while the 5632-RC is rated for 1.5 A. Use the 1140-103K-RC only in circuits where the operating current does not exceed 1 A. Additionally, the higher DC resistance (2.76 Ohm vs. 1.56 Ohm) will result in increased power dissipation.

Q: Is the Hammond 1539M32 a direct replacement for the 5632-RC?

A: Yes, from an electrical and mechanical standpoint. Both parts share 10 mH inductance, 1.5 A current rating, ferrite drum core construction, and through-hole radial mounting. DC resistance values are nearly identical (1.55 Ohm vs. 1.56 Ohm maximum). Physical dimensions are compatible for PCB layout purposes.

Q: What compliance certifications apply to these substitute parts?

A: All three parts (5632-RC, 1140-103K-RC, and 1539M32) are ROHS3 compliant and REACH unaffected. They carry the same ECCN (EAR99) and HTSUS (8504.50.8000) classifications.

Q: Why is the 5632-RC listed as obsolete?

A: The 5632-RC is an obsolete product from Bourns. Active alternatives from both Bourns (1140 series) and Hammond (1539 series) are available to support ongoing designs and procurement requirements.

Q: Are there dimensional differences between the substitute parts?

A: Yes. The 5632-RC and 1140-103K-RC share identical diameter (1.500" / 38.10mm) but differ in height. The 5632-RC height is 1.110" (28.19mm), while the 1140-103K-RC height is 1.030" (26.16mm). The Hammond 1539M32 has a larger height of 1.500" (38.10mm). Verify PCB layout clearance before substitution.

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