Bourns 6722-RC 900µH Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 6722-RC is a 900µH shielded toroidal inductor rated for 3.75A continuous current with a maximum DC resistance of 175mOhm. This through-hole component features iron powder core construction and operates across the temperature range of -55°C to 105°C. The part is classified as obsolete, making identification of suitable equivalent components essential for ongoing design support and production continuity. Substitute parts must maintain electrical performance specifications while accommodating potential differences in shielding characteristics and physical dimensions.

Substiute Parts

6722-RC

Bourns Inc.In Stock: 6996722-RC Datasheet

Current PartRFQ

1540M22

Hammond ManufacturingIn Stock: 10151540M22 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 6722-RC is determined by the following critical parameters:

• Inductance Value: 900 µH (±15% tolerance acceptable)
• Current Rating: Minimum 3.75 A
• DC Resistance: Maximum 175 mOhm
• Mounting Type: Through Hole configuration
• Package Configuration: Radial, Vertical lead arrangement
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The Hammond Manufacturing 1540M22 meets all electrical specifications. The primary distinction is the absence of shielding in the substitute part. This difference must be evaluated based on application-specific electromagnetic interference (EMI) requirements.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 1540M22 is an active product with confirmed inventory availability, providing supply chain continuity for the obsolete Bourns 6722-RC. Both components satisfy ROHS3 compliance and REACH regulatory requirements. Electrical parameters—inductance, current rating, and DC resistance—are identical across both parts.

The substitution is valid for applications where electromagnetic shielding is not a critical design requirement. In circuits where the shielded construction of the original part provides functional benefit through EMI suppression, the unshielded substitute may introduce performance differences. Physical dimensions differ slightly; the Hammond part measures 2.125" diameter by 0.937" width compared to the Bourns part at 2.125" length by 1.100" width. Verify mechanical fit within the target assembly before implementation.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 1540M22 directly replace the Bourns 6722-RC in all applications?

A: The Hammond part matches all critical electrical specifications. However, the absence of shielding in the substitute requires evaluation of application-specific EMI performance. If the original design relied on shielding for noise suppression, functional differences may occur.

Q: Are there dimensional compatibility concerns?

A: Both parts use radial, vertical lead configurations suitable for through-hole mounting. The Hammond part is slightly more compact (0.937" width vs. 1.100" width). Verify PCB layout and mechanical clearances before substitution.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the Bourns 6722-RC and Hammond 1540M22 are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: What is the inductance tolerance for both parts?

A: Both components specify ±15% inductance tolerance at 1 kHz test frequency, ensuring equivalent performance consistency.

Q: Why is the Bourns part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Hammond 1540M22 remains in active production, providing a viable path for continued component sourcing.