4554-2R2M Equivalent & Substitute Parts

Part Overview

The 4554-2R2M is a 2.2 µH fixed unshielded inductor manufactured by API Delevan Inc., designed for through-hole mounting applications. This component delivers 6.5 A current rating with a maximum DC resistance of 21 mOhm and operates across the temperature range of -40°C to 85°C. The part is currently active in production with 964 pieces available in stock. Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as extended temperature ranges or alternative packaging formats.

Substiute Parts

4554-2R2M

API Delevan Inc.In Stock: 10094554-2R2M Datasheet

Current PartRFQ

RLB9012-2R2ML

Bourns Inc.In Stock: 1141RLB9012-2R2ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4554-2R2M is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 2.2 µH
• Inductance tolerance: ±20%
• Current rating: 6.5 A minimum
• DC resistance: 21 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Package configuration: Radial, Vertical Cylinder
• Form factor: Compatible with vertical mounting orientation

Compliance Criteria:

• Product status: Active
• RoHS compliance status (where applicable)
• REACH compliance status

The substitute part RLB9012-2R2ML from Bourns Inc. meets all electrical and mechanical equivalence requirements. While dimensional variations exist (diameter 9.00 mm vs. 8.64 mm; height 12.20 mm vs. 11.00 mm), both components maintain the same radial vertical cylinder package configuration suitable for through-hole PCB mounting. The substitute offers extended operating temperature range (-55°C to 125°C) and RoHS3 compliance, providing additional design margin for temperature-sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (4554-2R2M): Select the 4554-2R2M when the application requires the original API Delevan specification, operates within the -40°C to 85°C temperature window, and RoHS non-compliance is acceptable for the end application. This part is currently active with 964 units in stock.

Substitute Selection (RLB9012-2R2ML): Select the RLB9012-2R2ML when the application requires RoHS3 compliance, extended operating temperature range (-55°C to 125°C), or when supply continuity of the original part is not available. This Bourns component is active with 1119 units in stock. Verify PCB layout accommodates the slightly larger dimensions (9.00 mm diameter, 12.20 mm height) before implementation.

Both parts maintain active product status and REACH unaffected compliance. Selection between these components should be based on compliance requirements, temperature operating range, available PCB space, and supply availability.

Frequently Asked Questions (FAQ)

Q: Can RLB9012-2R2ML directly replace 4554-2R2M in all applications?

A: The RLB9012-2R2ML is electrically equivalent across all critical parameters: inductance (2.2 µH), current rating (6.5 A), DC resistance (21 mOhm max), and core material (ferrite). Both are unshielded through-hole radial vertical cylinder packages. However, verify that PCB layout accommodates the larger dimensions (9.00 mm diameter vs. 8.64 mm; 12.20 mm height vs. 11.00 mm) before implementation.

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

A: The primary differences are: (1) Operating temperature range—RLB9012-2R2ML extends to -55°C to 125°C versus 4554-2R2M at -40°C to 85°C; (2) RoHS compliance—RLB9012-2R2ML is RoHS3 compliant while 4554-2R2M is non-compliant; (3) Self-resonant frequency—4554-2R2M at 100 MHz versus RLB9012-2R2ML at 90 MHz; (4) Physical dimensions—RLB9012-2R2ML is slightly larger; (5) Packaging—4554-2R2M supplied in bulk, RLB9012-2R2ML in tray.

Q: Are there any frequency response differences I should consider?

A: The self-resonant frequency differs: 4554-2R2M operates to 100 MHz while RLB9012-2R2ML operates to 90 MHz. Both maintain Q factor of 20 at 7.96 MHz. For applications operating near or above 90 MHz, verify the substitute's frequency response characteristics against circuit requirements.

Q: Which part should I select for new designs?

A: For new designs, consider RLB9012-2R2ML if RoHS3 compliance is required or if the application operates outside the -40°C to 85°C range. The extended temperature capability and compliance status provide design margin. Verify PCB layout can accommodate the slightly larger footprint.

Q: What is the impact of the dimensional differences?

A: The RLB9012-2R2ML is 0.36 mm larger in diameter (9.00 mm vs. 8.64 mm) and 1.20 mm taller (12.20 mm vs. 11.00 mm). These differences are minor but must be verified against PCB layout constraints, component spacing, and clearance requirements before substitution.

Q: Are both parts currently available?

A: Yes. The 4554-2R2M has 964 units in stock (API Delevan), and the RLB9012-2R2ML has 1119 units in stock (Bourns). Both are active products.