PM3316-2R2M Equivalent & Substitute Parts

Part Overview

The PM3316-2R2M is a 2.2 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 6.1 A continuous current with 12 mOhm DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part is designed for surface mount applications in nonstandard package configurations and operates across the temperature range of -55°C to 105°C.

Substiute Parts

PM3316-2R2M

Bourns Inc.In Stock: 939PM3316-2R2M Datasheet

Current PartRFQ

PM3316-2R2M-RC

Bourns Inc.In Stock: 1623PM3316-2R2M-RC Datasheet

DirectRFQ

ASPI-0804T-2R2M-T

Abracon LLCIn Stock: 1004ASPI-0804T-2R2M-T Datasheet

SimilarRFQ

B82464A4222M000

EPCOS - TDK ElectronicsIn Stock: 1436B82464A4222M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PM3316-2R2M are identified based on the following critical parameters that must align for functional equivalence:

• Inductance Value: 2.2 µH (core electrical specification)
• Inductance Tolerance: ±20% (acceptable variation range)
• DC Resistance: 12 mOhm (power loss and thermal characteristics)
• Current Rating: Minimum 6.1 A (load capacity requirement)
• Core Material: Ferrite (electromagnetic performance)
• Shielding Configuration: Unshielded (EMI characteristics)
• Mounting Type: Surface Mount (PCB assembly compatibility)
• Package Type: Nonstandard (physical footprint constraint)

Parts meeting these criteria are classified as direct equivalents or functionally compatible substitutes. Variations in saturation current, operating temperature range, and compliance certifications do not preclude substitution when the primary electrical parameters align.

Parameter Comparison

Engineering Selection Recommendations

PM3316-2R2M-RC (Bourns Inc.) is the primary direct substitute. This part maintains identical electrical specifications and physical dimensions while offering active product status and ROHS3 compliance. The extended operating temperature range to 125°C provides additional thermal margin compared to the original part.

ASPI-0804T-2R2M-T (Abracon LLC) is a functionally compatible alternative with equivalent inductance, tolerance, and DC resistance. The 7 A current rating exceeds the 6.1 A requirement. Physical dimensions vary slightly (12.95mm L x 9.40mm W x 5.21mm H), requiring PCB layout verification. Operating temperature range is limited to -40°C to 85°C, which may not satisfy applications requiring the full -55°C to 105°C specification of the original part.

B82464A4222M000 (EPCOS - TDK Electronics) meets core electrical requirements with 2.2 µH inductance and 12 mOhm DC resistance. The 5.7 A current rating is below the 6.1 A specification and requires thermal analysis for the intended application. Physical dimensions are significantly smaller (10.40mm x 10.40mm x 4.80mm), necessitating PCB redesign. This part includes AEC-Q200 automotive qualification and operates to 150°C, suitable for high-temperature applications.

Frequently Asked Questions (FAQ)

Q: Can PM3316-2R2M-RC be used as a direct replacement for PM3316-2R2M?

A: Yes. Both parts share identical inductance (2.2 µH), tolerance (±20%), current rating (6.1 A), and DC resistance (12 mOhm). Physical dimensions and mounting footprint are identical. The primary difference is product status and compliance certification.

Q: What are the limitations of ASPI-0804T-2R2M-T as a substitute?

A: The operating temperature range is restricted to -40°C to 85°C, which does not cover the full -55°C to 105°C specification of the original part. Physical dimensions differ slightly, requiring verification that the PCB layout accommodates the 12.95mm length and 9.40mm width. The higher current rating (7 A) does not present a limitation.

Q: Is B82464A4222M000 suitable for all applications using PM3316-2R2M?

A: The 5.7 A current rating is below the 6.1 A specification. Applications operating near the 6.1 A limit require thermal analysis to confirm the part does not exceed saturation or thermal limits. The significantly smaller footprint (10.40mm x 10.40mm) requires PCB redesign. This part is suitable for applications with lower current demands or where thermal performance is not critical.

Q: What is the impact of different operating temperature ranges?

A: The original PM3316-2R2M operates from -55°C to 105°C. PM3316-2R2M-RC extends to 125°C, providing additional margin. ASPI-0804T-2R2M-T is limited to -40°C to 85°C and is unsuitable for applications requiring the full lower temperature specification. B82464A4222M000 operates to 150°C and is suitable for high-temperature environments.

Q: Are there packaging differences between these parts?

A: PM3316-2R2M and PM3316-2R2M-RC are available in different packaging formats (bulk versus Tape & Reel). All substitute parts are supplied in Tape & Reel packaging. ASPI-0804T-2R2M-T and B82464A4222M000 also use Tape & Reel format, compatible with automated assembly processes.

Q: What compliance certifications should be considered?

A: The original PM3316-2R2M is RoHS non-compliant. All substitute parts (PM3316-2R2M-RC, ASPI-0804T-2R2M-T, and B82464A4222M000) are ROHS3 compliant. B82464A4222M000 includes AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications.