70F107AP-RC Equivalent & Substitute Parts

Part Overview

The Bourns 70F107AP-RC is a 100 nH unshielded wirewound inductor rated for 3.922 A with a maximum DC resistance of 130mOhm. This axial through-hole component operates across -55°C to 125°C and is designed for applications requiring low inductance values with moderate current handling. The product is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

70F107AP-RC

Bourns Inc.In Stock: 110870F107AP-RC Datasheet

Current PartRFQ

1944R-01M

API Delevan Inc.In Stock: 7791944R-01M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 70F107AP-RC is determined by the following critical parameters:

• Inductance Value: 100 nH (exact match required)
• Tolerance: ±20% (standard tolerance maintained)
• Current Rating: Minimum 3.922 A (equal or higher acceptable)
• DC Resistance: Maximum 130mOhm (lower values acceptable)
• Mounting Configuration: Through hole axial package
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)
• Shielding: Unshielded
• Core Material: Phenolic
• Compliance: ROHS3 compliant

The API Delevan 1944R-01M meets these substitution criteria with equivalent inductance, tolerance, temperature range, and compliance certifications. The substitute offers improved current rating (4 A vs 3.922 A) and superior DC resistance (20mOhm vs 130mOhm), making it a direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1944R-01M is a qualified substitute for the obsolete Bourns 70F107AP-RC. Both components maintain identical inductance specifications, tolerance bands, and operating temperature ranges. The substitute is ROHS3 compliant and REACH unaffected, matching the regulatory status of the original part.

The 1944R-01M offers performance advantages including higher current rating capacity and significantly lower DC resistance, which reduces power dissipation in the circuit. The active product status of the substitute ensures long-term availability and supply chain continuity compared to the obsolete original.

Physical dimensions differ slightly between the two axial packages (0.193" Dia x 0.447" L for the substitute versus 0.150" Dia x 0.310" L for the original), requiring verification of board layout compatibility during design migration.

Frequently Asked Questions (FAQ)

Q: Can the 1944R-01M directly replace the 70F107AP-RC in existing designs?

A: Yes, the 1944R-01M meets all critical electrical parameters including inductance value, tolerance, current rating, and operating temperature range. Physical dimensions differ, so PCB layout verification is required before implementation.

Q: What are the key differences between these two inductors?

A: The primary differences are construction type (wirewound vs. molded), DC resistance (130mOhm vs. 20mOhm), and current rating (3.922 A vs. 4 A). The substitute provides lower losses and higher current capacity while maintaining identical inductance and tolerance specifications.

Q: Why is the 70F107AP-RC obsolete?

A: The product status reflects manufacturer discontinuation. The API Delevan 1944R-01M is an active product offering equivalent functionality with improved electrical characteristics.

Q: Are there any compliance concerns with substitution?

A: Both components are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution in regulated applications.

Q: Does the lower DC resistance of the substitute affect circuit performance?

A: Lower DC resistance reduces power dissipation and heat generation, which is beneficial for circuit efficiency. This change does not negatively impact circuit function when inductance and current rating requirements are met.

Q: What packaging formats are available for the substitute?

A: The 1944R-01M is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.