70F154AI-RC Equivalent & Substitute Parts

Part Overview

The 70F154AI-RC is a 150 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 135 mA maximum current with 8.16Ohm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 105°C and is ROHS3 compliant.

Substiute Parts

70F154AI-RC

Bourns Inc.In Stock: 116870F154AI-RC Datasheet

Current PartRFQ

AIAP-01-151K-T

Abracon LLCIn Stock: 1147AIAP-01-151K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 70F154AI-RC is determined by the following critical parameters:

• Inductance Value: Must be 150 µH (exact match required)
• Mounting Type: Must be Through Hole Axial configuration
• Core Type: Wirewound construction acceptable
• Shielding: Unshielded specification maintained
• Current Rating: Minimum 135 mA required for equivalent operation
• Operating Temperature Range: Must support -40°C minimum and 105°C maximum
• Compliance: ROHS3 compliance required

The AIAP-01-151K-T from Abracon LLC meets these substitution criteria with matching inductance, mounting type, and core construction. While tolerance and DC resistance specifications differ, the substitute part provides superior current handling capability (410 mA versus 135 mA) and lower DC resistance (1.2Ohm versus 8.16Ohm), making it functionally compatible for applications within the 70F154AI-RC's original current rating envelope.

Parameter Comparison

Engineering Selection Recommendations

The AIAP-01-151K-T is an active product with current manufacturing status, providing supply chain continuity for the obsolete 70F154AI-RC. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent substitution.

The substitute part demonstrates improved electrical performance characteristics: lower DC resistance reduces power dissipation, and higher current rating provides operational margin. The inductance value and self-resonant frequency remain within compatible ranges for circuit operation.

Temperature range consideration: The substitute part operates to -40°C minimum versus -55°C for the original. Applications requiring operation below -40°C require design verification against the substitute part's lower temperature limit.

Frequently Asked Questions (FAQ)

Q: Can the AIAP-01-151K-T directly replace the 70F154AI-RC in existing designs?

A: Yes, for applications operating within the -40°C to 105°C temperature range. The matching 150 µH inductance, through-hole axial mounting, and unshielded wirewound construction provide functional equivalence. Verify circuit operation does not require temperatures below -40°C.

Q: What is the impact of the different DC resistance values?

A: The AIAP-01-151K-T exhibits significantly lower DC resistance (1.2Ohm versus 8.16Ohm). This reduces resistive losses and heat generation in the inductor. For current-limited applications, this represents an improvement. Verify the circuit design does not depend on the higher resistance characteristic of the original part.

Q: Does the tolerance difference affect circuit performance?

A: The AIAP-01-151K-T carries ±10% tolerance versus ±5% for the original. For circuits sensitive to inductance variation, measure the actual inductance value of substitute components. Most applications tolerate this tolerance range without performance degradation.

Q: Are the physical dimensions compatible?

A: Physical dimensions differ: 70F154AI-RC measures 0.160" Dia x 0.250" L; AIAP-01-151K-T measures 0.130" Dia x 0.360" L. Verify PCB layout and mechanical clearance accommodate the substitute part's dimensions before implementation.

Q: What packaging format is available for the substitute part?

A: The AIAP-01-151K-T is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. Confirm packaging compatibility with procurement and assembly requirements.