PM638S-560-RC Equivalent & Substitute Parts

Part Overview

The PM638S-560-RC is a 56 µH shielded drum core wirewound inductor manufactured by Bourns Inc., rated for 850 mA continuous current with a maximum DC resistance of 202 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is designed for applications requiring stable inductance performance in compact form factors. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional replacement in circuit designs.

Substiute Parts

PM638S-560-RC

Bourns Inc.In Stock: 1010PM638S-560-RC Datasheet

Current PartRFQ

SRR6038-560Y

Bourns Inc.In Stock: 4498SRR6038-560Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM638S-560-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 56 µH with ±30% tolerance
• Current rating: 850 mA minimum continuous current capacity
• Saturation current: 900 mA minimum
• DC resistance: 202 mOhm maximum
• Core type: Ferrite drum core, shielded construction
• Mounting: Surface mount, nonstandard package
• Physical dimensions: 6.80 mm x 6.80 mm x 4.00 mm maximum
• Operating temperature: -40°C to 125°C minimum range
• Compliance: ROHS3 and REACH requirements

The SRR6038-560Y meets all specified electrical and mechanical parameters, confirming direct substitution capability.

Parameter Comparison

Engineering Selection Recommendations

Both PM638S-560-RC and SRR6038-560Y are active production components from Bourns Inc. with full ROHS3 compliance and REACH unaffected status. Selection between these parts may be based on inventory availability and supply chain considerations. The PM638S-560-RC currently maintains 923 pieces in stock, while the SRR6038-560Y has 4400 pieces available. Both parts satisfy identical electrical performance requirements, thermal operating ranges, and environmental compliance standards. No technical performance differentiation exists between these components for circuit design purposes.

Frequently Asked Questions (FAQ)

Q: Can SRR6038-560Y directly replace PM638S-560-RC in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including inductance, current ratings, DC resistance, core material, shielding, frequency characteristics, operating temperature range, and physical dimensions. Direct substitution is supported without circuit modification.

Q: Are there differences in package or mounting between these parts?

A: No. Both components use identical surface mount nonstandard packages with dimensions of 6.80 mm length, 6.80 mm width, and 4.00 mm maximum seated height. Footprint compatibility is confirmed.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both PM638S-560-RC and SRR6038-560Y are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Environmental and regulatory requirements are identical.

Q: What determines substitution eligibility for these inductors?

A: Substitution is based on matching inductance value (56 µH ±30%), current rating (850 mA), saturation current (900 mA), DC resistance (202 mOhm maximum), ferrite core material, shielded construction, operating temperature range (-40°C to 125°C), and physical package dimensions. All these parameters must align for direct replacement.

Q: Are there any frequency performance differences?

A: No. Both parts exhibit identical Q factor (8.2 @ 2.52 MHz) and self-resonant frequency (8.8 MHz) characteristics, confirming equivalent high-frequency performance.