PM54-181K-RC Equivalent & Substitute Parts

Part Overview

The PM54-181K-RC is a 180 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., designed for surface mount applications. This component is rated for 380 mA continuous current with a maximum saturation current of 500 mA and exhibits a DC resistance of 1.38 Ohm. The part maintains active product status and is ROHS3 compliant, making it suitable for modern electronic assemblies requiring fixed inductance in compact form factors.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range, ensuring functional interchangeability in circuit applications.

Substiute Parts

PM54-181K-RC

Bourns Inc.In Stock: 1100PM54-181K-RC Datasheet

Current PartRFQ

SDR0604-181KL

Bourns Inc.In Stock: 2608SDR0604-181KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM54-181K-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 180 µH with ±10% tolerance
• Current rating: 380 mA minimum continuous current capability
• Saturation current: 500 mA minimum
• DC resistance: 1.38 Ohm (maximum specification)
• Core type: Ferrite drum core, unshielded construction
• Mounting: Surface mount, nonstandard package
• Physical dimensions: 5.80 mm × 5.80 mm footprint with 4.80 mm maximum seated height
• Electrical characteristics: Q factor of 20 @ 796 kHz and self-resonant frequency of 6 MHz
• Environmental compliance: ROHS3 compliant, MSL 1 rating
• Operating temperature: -40°C to 125°C range

The SDR0604-181KL meets all specified parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The SDR0604-181KL is a qualified substitute for the PM54-181K-RC based on complete electrical and mechanical equivalence. Both components are manufactured by Bourns Inc. and maintain identical specifications across all critical parameters including inductance, current ratings, DC resistance, core material, and physical dimensions.

Both parts carry active product status and maintain full compliance with ROHS3 and REACH requirements. The MSL 1 rating on both components indicates unlimited moisture sensitivity protection, suitable for standard storage and handling conditions.

Selection between PM54-181K-RC and SDR0604-181KL may be determined by inventory availability, lead time, or supply chain considerations, as no technical differentiation exists between the two part numbers.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-181KL be used as a direct replacement for the PM54-181K-RC?

A: Yes. The SDR0604-181KL meets all electrical and mechanical specifications of the PM54-181K-RC, including inductance value, current ratings, DC resistance, core material, package dimensions, and environmental compliance ratings.

Q: Are there any differences in DC resistance between these parts?

A: The PM54-181K-RC specifies 1.38 Ohm DC resistance, while the SDR0604-181KL specifies 1.38 Ohm maximum. This represents equivalent performance within the specified tolerance.

Q: Do both parts have identical physical dimensions?

A: Yes. Both the PM54-181K-RC and SDR0604-181KL share identical footprint dimensions of 5.80 mm × 5.80 mm with a maximum seated height of 4.80 mm, ensuring direct PCB compatibility.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and REACH unaffected. Both carry MSL 1 rating, indicating unlimited moisture sensitivity protection.

Q: Are there any temperature operating range differences?

A: No. Both parts operate across the identical temperature range of -40°C to 125°C.

Q: Can these parts be used interchangeably in production?

A: Yes. Electrical performance, mechanical compatibility, and compliance certifications are equivalent, permitting interchangeable use in circuit applications.