AIRD-02-4R7K Equivalent & Substitute Parts

Part Overview

The AIRD-02-4R7K is a 4.7 µH unshielded drum core wirewound inductor manufactured by Abracon LLC, rated for 11.4 A continuous current with a maximum DC resistance of 5 mOhm. This component is designed for through-hole mounting in radial, vertical cylinder configuration with ferrite core material.

The AIRD-02-4R7K is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and field replacement applications.

Substiute Parts

AIRD-02-4R7K

Abracon LLCIn Stock: 1107AIRD-02-4R7K Datasheet

Current PartRFQ

AIRD-02-4R7M

Abracon LLCIn Stock: 1164AIRD-02-4R7M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AIRD-02-4R7K is determined by the following critical electrical and mechanical parameters:

Electrical Parameters:

• Inductance value: 4.7 µH
• Current rating: 11.4 A minimum
• DC resistance: 5 mOhm maximum
• Saturation current: 50 A minimum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Parameters:

• Mounting type: Through hole
• Package configuration: Radial, vertical cylinder
• Physical dimensions: 0.827" diameter (21.00 mm), 0.827" height (21.00 mm)
• Operating temperature range: -25°C to 85°C

Compliance Parameters:

• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents. Tolerance variations in inductance are acceptable within the specified range for the substitute part, provided all other parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

The AIRD-02-4R7M is the manufacturer-recommended substitute for the obsolete AIRD-02-4R7K. Both components are manufactured by Abracon LLC within the AIRD-02 series and share identical electrical ratings, physical dimensions, and mounting configurations.

The primary difference is the inductance tolerance specification: the AIRD-02-4R7K maintains ±10% tolerance, while the AIRD-02-4R7M specifies ±20% tolerance. Both parts meet ROHS3 compliance and MSL 1 (Unlimited) requirements.

The AIRD-02-4R7M is currently in active production status, ensuring long-term availability and supply chain continuity. Selection of the AIRD-02-4R7M is appropriate for applications where the ±20% inductance tolerance is acceptable within circuit design specifications.

Frequently Asked Questions (FAQ)

Q: Can the AIRD-02-4R7M be used as a direct replacement for the AIRD-02-4R7K?

A: Yes. Both parts share identical inductance values (4.7 µH), current ratings (11.4 A), DC resistance (5 mOhm max), saturation current (50 A), core material (ferrite), shielding (unshielded), mounting type (through hole), physical dimensions (0.827" diameter × 0.827" height), and operating temperature range (-25°C to 85°C). The AIRD-02-4R7M is the manufacturer-recommended equivalent.

Q: What is the difference in inductance tolerance between these parts?

A: The AIRD-02-4R7K specifies ±10% inductance tolerance, while the AIRD-02-4R7M specifies ±20% tolerance. Both tolerances are measured at 1 kHz. Circuit designs must accommodate the wider tolerance of the AIRD-02-4R7M if substitution is required.

Q: Are the physical dimensions identical?

A: Yes. Both the AIRD-02-4R7K and AIRD-02-4R7M are packaged in radial, vertical cylinder configuration with 0.827" diameter (21.00 mm) and 0.827" maximum seated height (21.00 mm). They are mechanically interchangeable for through-hole PCB mounting.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AIRD-02-4R7K and AIRD-02-4R7M are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both are REACH unaffected and classified under ECCN EAR99.

Q: Why is the AIRD-02-4R7K listed as obsolete?

A: The AIRD-02-4R7K has been discontinued by the manufacturer. The AIRD-02-4R7M remains in active production and serves as the current equivalent for new designs and replacement applications.