6717-RC Equivalent & Substitute Parts

Part Overview

The Bourns 6717-RC is a 500 µH shielded toroidal inductor rated for 4 A continuous current with a maximum DC resistance of 150 mOhm. This through-hole component features iron powder core construction and operates across the temperature range of -55°C to 105°C. The 6717-RC is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

6717-RC

Bourns Inc.In Stock: 11296717-RC Datasheet

Current PartRFQ

PT500-1750

API Delevan Inc.In Stock: 1246PT500-1750 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6717-RC is determined by the following critical parameters:

• Inductance Value: Must be 500 µH with ±15% tolerance
• Core Type: Iron powder construction required for equivalent magnetic characteristics
• Shielding: Shielded configuration mandatory
• Mounting: Through-hole radial/vertical orientation
• Current Rating: Minimum 4 A continuous current capability
• DC Resistance: Maximum 150 mOhm to ensure equivalent power dissipation characteristics
• Test Frequency: 1 kHz measurement standard

The API Delevan PT500-1750 meets all substitution criteria. It maintains identical inductance value and tolerance, iron powder core construction, shielded configuration, and through-hole mounting. The PT500-1750 provides enhanced current rating (5 A versus 4 A) and comparable DC resistance (160 mOhm maximum versus 150 mOhm maximum), making it functionally compatible for applications requiring the 6717-RC specification.

Parameter Comparison

Engineering Selection Recommendations

The PT500-1750 is the qualified substitute for the 6717-RC based on electrical and mechanical parameter alignment. The PT500-1750 is an active product with current manufacturing support, addressing the obsolescence status of the 6717-RC.

Compliance considerations differ between the two parts. The 6717-RC carries RoHS3 compliance certification, while the PT500-1750 is RoHS non-compliant. Both parts are REACH Unaffected and classified under ECCN EAR99 and HTSUS 8504.50.4000. Design teams must evaluate RoHS compliance requirements for their specific application before finalizing component selection.

The PT500-1750 offers a 1 A current margin above the 6717-RC specification (5 A versus 4 A), providing additional thermal headroom in current-limited applications. The 10 mOhm increase in maximum DC resistance (160 mOhm versus 150 mOhm) remains within acceptable tolerance for most power distribution and filtering circuits.

Frequently Asked Questions (FAQ)

Q: Can the PT500-1750 directly replace the 6717-RC in existing designs?

A: The PT500-1750 meets all critical electrical parameters: identical 500 µH inductance with ±15% tolerance, iron powder core, shielded construction, and through-hole mounting. The higher current rating (5 A) and marginally higher DC resistance (160 mOhm) are compatible with 6717-RC applications. RoHS compliance status must be verified against design requirements.

Q: What are the physical dimension differences between these parts?

A: The 6717-RC measures 1.812" L × 0.900" W × 1.950" H (46.02mm × 22.86mm × 49.53mm seated height). The PT500-1750 measures 1.750" diameter × 0.750" width (44.45mm × 19.05mm). The PT500-1750 is slightly more compact. PCB layout verification is required to confirm fit within existing footprints.

Q: Are there any compliance differences that affect component selection?

A: The 6717-RC is RoHS3 compliant with Moisture Sensitivity Level not applicable. The PT500-1750 is RoHS non-compliant with MSL 1 (Unlimited). Applications subject to RoHS directives or requiring MSL-rated components must account for this difference in procurement and supply chain planning.

Q: What is the significance of the current rating difference?

A: The PT500-1750 is rated for 5 A continuous current compared to the 6717-RC at 4 A. This provides a 25% current margin, reducing thermal stress in applications operating near the 4 A limit. No derating is required for designs originally specified at 4 A or below.

Q: How do the DC resistance values affect circuit performance?

A: The PT500-1750 maximum DC resistance of 160 mOhm is 10 mOhm higher than the 6717-RC at 150 mOhm maximum. In a 4 A application, this represents approximately 6.4 mW additional power dissipation (I²R loss). This difference is negligible in most filtering and power distribution circuits but should be evaluated in thermally constrained designs.