4554-1R0M Equivalent & Substitute Parts

Part Overview

The 4554-1R0M is a 1 µH fixed unshielded inductor manufactured by API Delevan Inc., rated for 10 A continuous current with a maximum DC resistance of 13mOhm. This through-hole radial component operates across the industrial temperature range of -40°C to 85°C and is currently in active production status. Equivalent substitute parts may be required due to inventory constraints, long lead times, or application-specific performance requirements such as extended temperature operating ranges or enhanced regulatory compliance certifications.

Substiute Parts

4554-1R0M

API Delevan Inc.In Stock: 7314554-1R0M Datasheet

Current PartRFQ

RLB9012-1R0ML

Bourns Inc.In Stock: 7462RLB9012-1R0ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4554-1R0M is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value of 1 µH with ±20% tolerance
• Current rating of 10 A or greater
• DC resistance at or below 13 mOhm maximum
• Q factor of 20 @ 7.96 MHz or equivalent performance
• Self-resonant frequency of 150 MHz or higher
• Unshielded configuration

Mechanical Compatibility Criteria:

• Through-hole mounting type
• Radial, vertical cylinder package orientation
• Physical dimensions compatible with 0.340" Dia (8.64mm) standard

The RLB9012-1R0ML from Bourns Inc. meets all electrical and mechanical substitution criteria and is classified as an equivalent alternative component.

Parameter Comparison

Engineering Selection Recommendations

Both the 4554-1R0M and RLB9012-1R0ML are active production components suitable for direct substitution in applications requiring 1 µH inductors with 10 A current capability. The RLB9012-1R0ML offers additional advantages including ROHS3 compliance and an extended operating temperature range of -55°C to 125°C compared to the original specification of -40°C to 85°C. The RLB9012-1R0ML features slightly larger physical dimensions (0.354" Dia vs. 0.340" Dia and 0.480" height vs. 0.433" height) and must be verified for fit within layout constraints prior to selection. The RLB9012-1R0ML represents the preferred substitute when regulatory compliance with ROHS3 requirements is mandatory or when applications demand extended low-temperature operation below -40°C or high-temperature operation above 85°C.

Frequently Asked Questions (FAQ)

Q: Are the 4554-1R0M and RLB9012-1R0ML electrically interchangeable? A: Yes. Both components provide identical inductance values (1 µH), current ratings (10 A), DC resistance (13 mOhm Max), Q factor (20 @ 7.96 MHz), and self-resonant frequency (150 MHz) specifications. Electrical performance is equivalent.

Q: What are the key physical differences between these inductors? A: The RLB9012-1R0ML features a larger diameter (0.354" vs. 0.340") and greater height (0.480" vs. 0.433"). PCB layout verification is required before substitution to confirm adequate clearance in the target application.

Q: Does the RLB9012-1R0ML meet environmental compliance standards? A: Yes. The RLB9012-1R0ML holds ROHS3 compliance certification, while the 4554-1R0M is RoHS non-compliant. Both are REACH Unaffected and carry EAR99 ECCN classification.

Q: Can the RLB9012-1R0ML operate at lower temperatures than the 4554-1R0M? A: Yes. The RLB9012-1R0ML operates from -55°C to 125°C, extending the lower temperature limit by 15°C and the upper limit by 40°C compared to the 4554-1R0M range of -40°C to 85°C.

Q: What is the difference in core construction? A: The 4554-1R0M uses ferrite core construction, while the RLB9012-1R0ML employs a drum core wirewound ferrite design. Both designs deliver the specified electrical characteristics at the specified operating parameters.