PM1608S-331M-RC Equivalent & Substitute Parts

Part Overview

The PM1608S-331M-RC is a 330 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 200 mA continuous current with a maximum DC resistance of 1.4Ohm. This surface mount component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently in active production status with 1001 units available in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

PM1608S-331M-RC

Bourns Inc.In Stock: 1011PM1608S-331M-RC Datasheet

Current PartRFQ

SRR6603-331ML

Bourns Inc.In Stock: 2796SRR6603-331ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM1608S-331M-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 330 µH with ±20% tolerance
• Current rating: 200 mA minimum
• DC resistance: 1.4Ohm maximum
• Core material and shielding: Ferrite, shielded drum core construction
• Package dimensions: 0.260" L x 0.173" W x 0.118" H (6.60mm x 4.40mm x 3.00mm)
• Mounting configuration: Surface mount, nonstandard package
• Operating temperature range: -55°C to 125°C
• Regulatory compliance: ROHS3 compliant

The SRR6603-331ML meets all substitution criteria as a direct equivalent part from the same manufacturer.

Parameter Comparison

Engineering Selection Recommendations

Both PM1608S-331M-RC and SRR6603-331ML are active production components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts is based on availability and supply chain requirements rather than technical differentiation. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) rating, suitable for standard manufacturing and storage conditions. The SRR6603-331ML provides additional saturation current specification (70mA), which may be relevant for applications requiring detailed magnetic performance characterization.

Frequently Asked Questions (FAQ)

Q: Can SRR6603-331ML be used as a direct replacement for PM1608S-331M-RC?

A: Yes. Both parts are electrically and mechanically equivalent with identical inductance (330 µH), current rating (200 mA), DC resistance (1.4Ohm max), package dimensions (6.60mm x 4.40mm x 3.00mm), and operating temperature range (-55°C to 125°C). Both are surface mount, shielded ferrite drum core inductors from Bourns Inc.

Q: Are there any differences in compliance or certifications?

A: Both parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. No compliance differences exist between the two parts.

Q: What is the significance of the saturation current specification in SRR6603-331ML?

A: The SRR6603-331ML specifies a saturation current (Isat) of 70mA, providing additional magnetic performance data. This specification is not provided for PM1608S-331M-RC but does not affect substitution eligibility, as both parts maintain the same 200 mA current rating and 1.4Ohm maximum DC resistance.

Q: Are the package codes different between these parts?

A: Both parts use nonstandard surface mount packages with identical physical dimensions. The package designation differs (PM1608S vs. SRR6603 series), but the actual footprint and mounting requirements are identical.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on current inventory availability and supplier lead times, as both parts are functionally equivalent and in active production status.