Bourns 6712-RC 150µH Shielded Toroidal Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 6712-RC is a 150µH shielded toroidal inductor rated for 4.75A continuous current with a maximum DC resistance of 46mOhm. This through-hole component is designed for radial, vertical mounting with 4 open leads and operates across the temperature range of -55°C to 105°C. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

6712-RC

Bourns Inc.In Stock: 9766712-RC Datasheet

Current PartRFQ

PT150-1250

API Delevan Inc.In Stock: 1057PT150-1250 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 6712-RC is determined by the following critical parameters:

• Inductance Value: Must be 150µH with ±15% tolerance
• Core Type: Iron powder construction required for electromagnetic performance matching
• Shielding: Shielded configuration mandatory for EMI containment
• Mounting Configuration: Through-hole radial, vertical orientation with compatible lead count and spacing
• Current Handling: Substitute must support minimum 4.75A continuous current rating
• DC Resistance: Maximum 46mOhm specification for thermal and efficiency requirements
• Test Frequency: Inductance measured at 1 kHz per specification

The API Delevan PT150-1250 meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan PT150-1250 is a direct functional substitute for the Bourns 6712-RC based on electrical and mechanical parameter alignment. The substitute component provides superior current handling capacity (5.7A versus 4.75A), ensuring adequate margin for the original application requirements. The DC resistance specification of 60mOhm on the substitute is slightly elevated compared to the 46mOhm maximum of the original part; this difference must be evaluated within the context of the specific circuit application to confirm thermal and efficiency performance remains acceptable.

The PT150-1250 is classified as an active product with current manufacturing support, providing supply chain continuity for the obsolete 6712-RC. The substitute maintains identical inductance value, tolerance, core material, shielding configuration, and mounting methodology. Physical dimensions are comparable, with the substitute measuring 1.250" diameter by 0.700" width versus the original 1.250" length by 0.800" width, supporting direct PCB layout compatibility.

RoHS compliance status differs between the two components. The original 6712-RC is RoHS3 compliant, while the PT150-1250 is RoHS non-compliant. Design teams must confirm whether RoHS compliance is a mandatory requirement for the end application before finalizing the substitution decision.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan PT150-1250 be used as a direct replacement for the Bourns 6712-RC in existing designs?

A: Yes, the PT150-1250 meets all critical electrical and mechanical substitution parameters. The higher current rating (5.7A) and slightly elevated DC resistance (60mOhm) are compatible with applications originally designed for the 6712-RC. Physical dimensions support direct PCB mounting without layout modifications.

Q: What is the impact of the increased DC resistance on circuit performance?

A: The PT150-1250 specifies a maximum DC resistance of 60mOhm compared to 46mOhm for the 6712-RC. This 14mOhm increase will result in proportionally higher resistive losses and heat generation at rated current. Circuit designers must confirm that thermal management and efficiency specifications remain within acceptable limits for the specific application.

Q: Are there any compliance considerations when substituting the PT150-1250 for the 6712-RC?

A: The original Bourns component is RoHS3 compliant, while the API Delevan substitute is RoHS non-compliant. Applications subject to RoHS regulatory requirements must confirm that the substitute component meets applicable compliance mandates before implementation.

Q: How do the physical dimensions compare between these two inductors?

A: The Bourns 6712-RC measures 1.250" length by 0.800" width with a maximum seated height of 1.375". The API Delevan PT150-1250 measures 1.250" diameter by 0.700" width. Both components use radial, vertical through-hole mounting with open leads. The dimensional differences are minor and support direct PCB layout compatibility.

Q: What is the operating temperature range for the PT150-1250?

A: Operating temperature specifications for the PT150-1250 are not provided in the available technical documentation. The original Bourns 6712-RC operates from -55°C to 105°C. Confirmation of the substitute component's temperature rating is required before final design approval.