PM105-330M-RC Equivalent & Substitute Parts

Part Overview

The PM105-330M-RC is a 33 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.5 A continuous current with 120 mOhm DC resistance. This surface mount component is designed for applications requiring fixed inductance in compact form factors. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

PM105-330M-RC

Bourns Inc.In Stock: 917PM105-330M-RC Datasheet

Current PartRFQ

SDR1006-330KL

Bourns Inc.In Stock: 3308SDR1006-330KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PM105-330M-RC are qualified based on the following critical parameters:

• Inductance value: 33 µH (exact match required)
• Current rating: 1.5 A minimum
• DC resistance: 120 mOhm maximum
• Saturation current: 2.9 A minimum
• Core type: Ferrite, unshielded drum core
• Operating temperature: -40°C to 125°C minimum range
• Physical footprint: 9.80 × 9.80 × 5.80 mm (surface mount compatibility)
• Mounting type: Surface mount
• Compliance: ROHS3 compliant

The SDR1006-330KL meets all substitution criteria with identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both PM105-330M-RC and SDR1006-330KL are active production components from Bourns Inc. with full ROHS3 compliance and REACH unaffected status. The SDR1006-330KL offers a tighter inductance tolerance (±10% versus ±20%), which may provide improved circuit performance in applications sensitive to inductance variation. Both parts maintain identical electrical ratings, thermal operating range, and physical footprint, ensuring direct substitution capability in surface mount applications. Selection between these parts should be based on tolerance requirements and component availability.

Frequently Asked Questions (FAQ)

Q: Can SDR1006-330KL replace PM105-330M-RC in existing designs?

A: Yes. Both parts share identical inductance (33 µH), current rating (1.5 A), DC resistance (120 mOhm), saturation current (2.9 A), operating temperature range (-40°C to 125°C), and physical dimensions (9.80 × 9.80 × 5.80 mm). Surface mount compatibility and tape & reel packaging are identical.

Q: What is the difference between these two parts?

A: The primary difference is inductance tolerance. PM105-330M-RC specifies ±20% tolerance, while SDR1006-330KL specifies ±10% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts compliant with environmental regulations?

A: Yes. Both PM105-330M-RC and SDR1006-330KL are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Q: What determines substitution eligibility for this inductor?

A: Substitution eligibility is determined by matching inductance value (33 µH), current rating (1.5 A minimum), DC resistance (120 mOhm maximum), saturation current (2.9 A minimum), core material (ferrite, unshielded), operating temperature range (-40°C to 125°C), physical footprint (9.80 × 9.80 × 5.80 mm), and surface mount compatibility.

Q: Can parts with different inductance tolerances be used interchangeably?

A: Parts with different tolerances can be substituted if the application circuit design accommodates the wider tolerance range. The SDR1006-330KL with ±10% tolerance is suitable for applications previously using PM105-330M-RC with ±20% tolerance.