70F916AI-RC Equivalent & Substitute Parts

Part Overview

The 70F916AI-RC is a 9.1 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 288 mA maximum current with 1.44Ohm DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

70F916AI-RC

Bourns Inc.In Stock: 103370F916AI-RC Datasheet

Current PartRFQ

511R-44J

API Delevan Inc.In Stock: 1036511R-44J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 70F916AI-RC is determined by the following critical parameters:

• Inductance Value: Must be 9.1 µH (core electrical requirement)
• Core Type & Shielding: Drum core, wirewound, unshielded (mechanical and electromagnetic compatibility)
• Mounting Type & Package: Through hole, axial configuration (PCB assembly compatibility)
• Operating Temperature Range: Must support -55°C ~ 105°C minimum (environmental compatibility)
• Current Rating: Must meet or exceed 288 mA (electrical load capacity)
• DC Resistance: Lower DCR values are acceptable as they represent improved performance
• Compliance: ROHS3 compliant, REACH unaffected status required

The substitute part 511R-44J from API Delevan Inc. meets all substitution criteria with improved electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 511R-44J from API Delevan Inc. is a direct functional substitute for the obsolete 70F916AI-RC. Both components share identical inductance values, core construction, shielding characteristics, and operating temperature ranges. The substitute part offers improved electrical performance with higher current rating (350 mA vs. 288 mA), lower DC resistance (800mOhm vs. 1.44Ohm), and tighter inductance tolerance (±5% vs. ±10%). Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility. The 511R-44J is currently in active production status, providing supply continuity for applications previously using the 70F916AI-RC.

Frequently Asked Questions (FAQ)

Q: Can the 511R-44J replace the 70F916AI-RC in existing designs?

A: Yes. Both components have identical 9.1 µH inductance values, unshielded drum core construction, through-hole axial mounting, and -55°C to 105°C operating temperature ranges. The substitute part meets all electrical and mechanical requirements for direct substitution.

Q: What are the key differences between these parts?

A: The 511R-44J provides improved performance characteristics: higher current rating (350 mA vs. 288 mA), lower DC resistance (800mOhm vs. 1.44Ohm), tighter inductance tolerance (±5% vs. ±10%), and higher self-resonant frequency (50MHz vs. 21MHz). These differences represent enhancements rather than limitations.

Q: Are there packaging differences?

A: The 70F916AI-RC uses standard through-hole packaging, while the 511R-44J is supplied in Tape & Reel format. Both maintain axial package configuration compatible with through-hole PCB assembly processes.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the 70F916AI-RC and 511R-44J are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing and use.

Q: Why is the 70F916AI-RC marked as obsolete?

A: The 70F916AI-RC is listed as obsolete by Bourns Inc., indicating discontinued production. The 511R-44J from API Delevan Inc. remains in active production status, providing a viable alternative for new designs and replacement applications.