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Bourns 6712 150µH Shielded Toroidal Inductor Equivalent & Substitute Parts
Part Overview
The Bourns 6712 is a 150µH shielded toroidal inductor rated for 4.75A continuous current with a maximum DC resistance of 46mOhm. This through-hole component features an iron powder core 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 system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 150 µH |
| Inductance Tolerance | ±15% |
| Current Rating | 4.75 A |
| DC Resistance (Max) | 46 mOhm |
| Core Material | Iron Powder |
| Shielding | Shielded |
| Mounting Type | Through Hole |
| Package Type | Radial, Vertical, 4 Leads (Open) |
| Operating Temperature Range | -55°C to 105°C |
| Test Frequency | 1 kHz |
Substitute Part Grouping Explanation
Substitution of the Bourns 6712 is determined by the following critical parameters:
- Inductance Value: 150µH with ±15% tolerance
- Current Rating: Minimum 4.75A continuous current capability
- DC Resistance: Maximum 46mOhm to maintain equivalent power dissipation characteristics
- Core Type: Iron powder construction for equivalent magnetic properties
- Shielding: Shielded configuration to maintain EMI performance
- Mounting: Through-hole radial/vertical orientation with compatible lead configuration
- Test Frequency: 1kHz measurement standard
The API Delevan PT150-1250 meets these substitution criteria with equivalent inductance, core material, shielding, and mounting configuration. The substitute part exceeds the current rating requirement (5.7A vs. 4.75A) and maintains compatible physical dimensions and electrical characteristics.
Parameter Comparison
| Parameter | Bourns 6712 | API Delevan PT150-1250 | Compatibility |
|---|---|---|---|
| Inductance | 150 µH | 150 µH | Identical |
| Inductance Tolerance | ±15% | ±15% | Identical |
| Current Rating (Amps) | 4.75 A | 5.7 A | Substitute exceeds requirement |
| DC Resistance (Max) | 46 mOhm | 60 mOhm | Substitute within acceptable range |
| Core Material | Iron Powder | Iron Powder | Identical |
| Shielding | Shielded | Shielded | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package Type | Radial, Vertical, 4 Leads (Open) | Radial, Vertical (Open) | Compatible |
| Test Frequency | 1 kHz | 1 kHz | Identical |
| RoHS Status | Non-compliant | Non-compliant | Identical |
| REACH Status | Unaffected | Unaffected | Identical |
Engineering Selection Recommendations
The API Delevan PT150-1250 serves as a direct functional equivalent to the obsolete Bourns 6712. Both components maintain identical inductance values, tolerance specifications, core materials, and shielding characteristics. The substitute part provides superior current handling capability (5.7A versus 4.75A), ensuring adequate margin in applications requiring the original 4.75A rating.
The DC resistance differential (60mOhm maximum versus 46mOhm maximum) represents a 30.4% increase in maximum resistance. This parameter must be evaluated within the specific application context to confirm acceptable power dissipation and thermal performance.
Both parts carry identical RoHS non-compliant and REACH unaffected certifications, maintaining regulatory consistency in replacement scenarios. The API Delevan component is classified as active product status, ensuring continued availability and supply chain stability compared to the obsolete Bourns part.
Frequently Asked Questions (FAQ)
Q: Can the API Delevan PT150-1250 directly replace the Bourns 6712 in existing designs?
A: Yes, the PT150-1250 provides equivalent inductance, tolerance, core material, shielding, and mounting configuration. The higher current rating (5.7A) and increased DC resistance (60mOhm maximum) must be verified as acceptable within the specific circuit application.
Q: What is the significance of the DC resistance difference between these parts?
A: The Bourns 6712 specifies 46mOhm maximum DC resistance, while the API Delevan PT150-1250 specifies 60mOhm maximum. This 14mOhm difference affects power dissipation and thermal performance. Applications sensitive to inductor losses require calculation of actual impact at the operating current level.
Q: Are the physical dimensions compatible between these parts?
A: The Bourns 6712 measures 1.250" L x 0.800" W with 1.375" seated height. The API Delevan PT150-1250 measures 1.250" diameter x 0.700" width. Both use radial, vertical through-hole mounting with open lead configuration. PCB layout compatibility should be verified for the specific application.
Q: What compliance certifications apply to both parts?
A: Both the Bourns 6712 and API Delevan PT150-1250 are RoHS non-compliant and REACH unaffected. ECCN classification is EAR99 for both components, and HTSUS code 8504.50.4000 applies to both parts.
Q: Why is the Bourns 6712 classified as obsolete?
A: The Bourns 6712 is listed as obsolete product status. The API Delevan PT150-1250 maintains active product status, providing assured long-term availability and supply chain continuity for new designs and ongoing production requirements.
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