PM3316-220M Equivalent & Substitute Parts

Part Overview

The PM3316-220M is a 22 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 2.7 A with 85mOhm DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates across the temperature range of -55°C to 105°C and is mounted as a surface mount device in a nonstandard package configuration.

Substiute Parts

PM3316-220M

Bourns Inc.In Stock: 718PM3316-220M Datasheet

Current PartRFQ

CM453232-1R5KL

Bourns Inc.In Stock: 3134CM453232-1R5KL Datasheet

DirectRFQ

PM3316-220M-RC

Bourns Inc.In Stock: 4722PM3316-220M-RC Datasheet

DirectRFQ

SDR1005-220ML

Bourns Inc.In Stock: 4260SDR1005-220ML Datasheet

SimilarRFQ

ASPI-0804T-220M-T

Abracon LLCIn Stock: 668ASPI-0804T-220M-T Datasheet

SimilarRFQ

UP2B-220-R

Eaton - Electronics DivisionIn Stock: 16278UP2B-220-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PM3316-220M is determined by the following critical parameters: inductance value (22 µH), current rating capability (minimum 2.7 A), DC resistance (85 mOhm or lower), core material (ferrite), shielding configuration (unshielded), and mounting type (surface mount). Parts meeting these electrical specifications within the defined tolerance range are classified as direct substitutes. Parts with reduced current ratings or increased DC resistance are classified as similar substitutes and require application-level verification.

The substitute parts identified are grouped as follows:

Direct Substitutes (Equivalent electrical performance):

• PM3316-220M-RC: Same inductance, series, and core type with active product status
• SDR1005-220ML: Matching inductance and current rating with active status
• ASPI-0804T-220M-T: Equivalent inductance and current rating from alternative manufacturer

Similar Substitutes (Reduced current rating or increased resistance):

• CM453232-1R5KL: Different inductance value (1.5 µH); not suitable for direct substitution
• UP2B-220-R: Matching inductance with superior current rating and lower DC resistance

Parameter Comparison

Engineering Selection Recommendations

PM3316-220M-RC is the primary substitute for the obsolete PM3316-220M. Both parts share the same series designation, inductance value, and core configuration. The PM3316-220M-RC is actively manufactured by Bourns Inc. and carries ROHS3 compliance certification. The current rating is reduced from 2.7 A to 2.0 A, and DC resistance increases from 85 mOhm to 100 mOhm. The operating temperature range extends to 125°C. This part is suitable for applications where the 2.0 A rating meets circuit requirements.

SDR1005-220ML provides an alternative from Bourns Inc. with identical inductance and current rating specifications to the PM3316-220M-RC. This part is actively produced and ROHS3 compliant. The operating temperature minimum is -40°C rather than -55°C.

ASPI-0804T-220M-T from Abracon LLC matches the original PM3316-220M current rating (2.6 A) and DC resistance (85 mOhm). This part is actively manufactured and ROHS3 compliant. The operating temperature range is -40°C to 85°C, which is narrower than the original specification.

UP2B-220-R from Eaton Electronics offers superior electrical performance with the highest current rating (2.8 A) and lowest DC resistance (61.7 mOhm) among all substitutes. This part is actively produced and ROHS3 compliant. The operating temperature range is -40°C to 85°C.

All substitute parts are ROHS3 compliant, addressing regulatory requirements not met by the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can PM3316-220M-RC directly replace PM3316-220M in all applications?

A: PM3316-220M-RC shares the same inductance, tolerance, and core type. However, the current rating is reduced from 2.7 A to 2.0 A, and DC resistance increases from 85 mOhm to 100 mOhm. Substitution is valid only if the circuit operates at or below 2.0 A and can tolerate the increased resistance.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes maintain the same inductance value (22 µH) and current rating capability (≥2.7 A) with equivalent or lower DC resistance. Similar substitutes may have reduced current ratings or increased resistance, requiring application-level verification before implementation.

Q: Why does CM453232-1R5KL appear in the substitute list if it has different inductance?

A: CM453232-1R5KL is listed in the original PM3316-220M substitute field but has an inductance of 1.5 µH, which differs significantly from the 22 µH requirement. This part is not suitable for direct substitution and should not be used unless the circuit design is modified to accommodate the different inductance value.

Q: Are all substitute parts surface mount compatible?

A: Yes, all identified substitute parts are surface mount devices. However, package dimensions vary slightly. Verify PCB footprint compatibility before implementation, particularly for the UP2B-220-R, which has slightly larger dimensions (0.550" L x 0.410" W) compared to the original (0.500" L x 0.394" W).

Q: What is the impact of operating temperature range differences?

A: The original PM3316-220M operates from -55°C to 105°C. Substitute parts have minimum operating temperatures of -40°C and maximum temperatures ranging from 85°C to 125°C. Verify that the substitute part's temperature range encompasses the application's operating environment.

Q: Which substitute offers the best electrical performance?

A: UP2B-220-R provides the lowest DC resistance (61.7 mOhm) and highest current rating (2.8 A), resulting in superior thermal performance and lower power dissipation. However, its operating temperature range is limited to -40°C to 85°C.