PM3604-33-B-RC Equivalent & Substitute Parts

Part Overview

The PM3604-33-B-RC is an unshielded 2-coil inductor array manufactured by Bourns Inc. as part of the PM3600 series. This component provides dual inductance configurations: 33 µH when coils are connected in parallel and 132 µH when connected in series. The part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

PM3604-33-B-RC

Bourns Inc.In Stock: 836PM3604-33-B-RC Datasheet

Current PartRFQ

PM3604-33-RC

Bourns Inc.In Stock: 1496PM3604-33-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM3604-33-B-RC is determined by strict equivalence across the following electrical and mechanical parameters:

• Dual-coil inductor array configuration with identical inductance values in both parallel (33 µH) and series (132 µH) modes
• Matching tolerance specification (±20%)
• Identical current ratings for both parallel (1.6 A) and series (800 mA) configurations
• Equivalent DC resistance specifications (78 mOhm Max parallel, 310 mOhm Max series)
• Unshielded construction
• Operating temperature range of -55°C to 125°C
• Surface mount technology with nonstandard package dimensions
• Physical footprint matching 0.550" L × 0.452" W × 0.265" H

The PM3604-33-RC qualifies as a direct substitute based on complete alignment with all electrical specifications and physical parameters. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The PM3604-33-RC is the direct equivalent for the obsolete PM3604-33-B-RC. Both parts maintain identical electrical performance and physical compatibility. The substitute part carries active product status, ensuring continued availability and manufacturing support from Bourns Inc.

Selection of the PM3604-33-RC is appropriate for new designs and production continuity. Both parts satisfy ROHS3 compliance and REACH requirements. The packaging difference (Tape & Reel versus bulk) reflects standard industry practice for active production components and does not affect functional performance or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can PM3604-33-RC replace PM3604-33-B-RC in existing designs?

A: Yes. The parts are electrically and mechanically identical. All inductance values, current ratings, DC resistance specifications, and physical dimensions match exactly. The substitute part is actively manufactured and supported.

Q: What is the difference between the two part numbers?

A: The primary difference is product status and packaging format. PM3604-33-B-RC is obsolete and supplied in bulk packaging. PM3604-33-RC is an active product supplied in Tape & Reel format, which is standard for production quantities.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, REACH status, and moisture sensitivity ratings. Regulatory and environmental compliance is equivalent.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Packaging format is a supply and handling consideration only. Electrical and mechanical performance is identical regardless of packaging method.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is based on matching inductance values (33 µH parallel, 132 µH series), current ratings (1.6 A parallel, 800 mA series), DC resistance specifications, coil configuration, operating temperature range, and physical footprint. All parameters must align exactly.