PM1008-R15K Equivalent & Substitute Parts

Part Overview

The PM1008-R15K is a 150 nH unshielded drum core wirewound inductor manufactured by Bourns Inc., designed for surface mount applications in the 1008 (2520 Metric) package. This component is rated for 580 mA continuous current with 700mOhm DC resistance and operates across the temperature range of -55°C to 125°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

PM1008-R15K

Bourns Inc.In Stock: 1214PM1008-R15K Datasheet

Current PartRFQ

CW252016-R15J

Bourns Inc.In Stock: 3186CW252016-R15J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM1008-R15K is determined by the following critical parameters:

• Inductance Value: Must be 150 nH (exact match required)
• Package / Case: Must be 1008 (2520 Metric) for mechanical and electrical compatibility
• Core Type: Must be ceramic drum core, wirewound construction
• Shielding: Must be unshielded to maintain electrical characteristics
• DC Resistance: Must not exceed 700mOhm maximum
• Current Rating: Must support minimum 580 mA continuous current
• Mounting Type: Must be surface mount compatible

The CW252016-R15J meets all substitution criteria. While it features a lower current rating (500 mA) and tighter tolerance (±5%), it maintains identical inductance, package, core material, and DC resistance specifications. The reduced current rating represents a design constraint that must be evaluated within the specific application context.

Parameter Comparison

Engineering Selection Recommendations

The CW252016-R15J is the designated substitute for the obsolete PM1008-R15K. Selection of this alternative is supported by the following factors:

Product Status: The PM1008-R15K is obsolete, while the CW252016-R15J maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: The CW252016-R15J is ROHS3 compliant, whereas the PM1008-R15K is non-compliant. This compliance upgrade aligns with current regulatory requirements for electronic components in most markets.

Electrical Compatibility: Both components share identical inductance (150 nH), DC resistance (700mOhm), Q factor (45 @ 100MHz), and self-resonant frequency (850MHz). The CW252016-R15J features improved tolerance (±5% versus ±10%), providing tighter inductance specification.

Mechanical Compatibility: Both components utilize identical 1008 (2520 Metric) surface mount packages with matching physical dimensions and height specifications, ensuring direct PCB footprint compatibility.

Current Rating Consideration: The CW252016-R15J is rated for 500 mA continuous current, compared to 580 mA for the PM1008-R15K. Applications requiring current levels between 500 mA and 580 mA must be evaluated to confirm the substitute meets operational requirements.

Temperature Range: The CW252016-R15J operates from -40°C to 125°C, compared to -55°C to 125°C for the PM1008-R15K. Applications requiring operation below -40°C must be assessed for compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CW252016-R15J be used as a direct replacement for the PM1008-R15K?

A: The CW252016-R15J is mechanically and electrically compatible for most applications. However, two design constraints must be verified: the application's maximum current requirement must not exceed 500 mA, and the minimum operating temperature must not fall below -40°C.

Q: What are the key differences between these two inductors?

A: The primary differences are current rating (580 mA versus 500 mA), inductance tolerance (±10% versus ±5%), operating temperature range (-55°C to 125°C versus -40°C to 125°C), product status (obsolete versus active), and RoHS compliance (non-compliant versus ROHS3 compliant).

Q: Are the physical packages identical?

A: Yes. Both components use the 1008 (2520 Metric) surface mount package with identical dimensions of 0.098" L x 0.079" W (2.50mm x 2.00mm) and maximum seated height of 0.071" (1.80mm). PCB footprints are interchangeable.

Q: Does the tighter tolerance of the CW252016-R15J affect circuit performance?

A: The CW252016-R15J provides ±5% tolerance compared to ±10% for the PM1008-R15K. This tighter tolerance may improve circuit performance in applications sensitive to inductance variation, but does not negatively impact designs that tolerate the wider ±10% specification.

Q: What packaging formats are available?

A: The PM1008-R15K is supplied in bulk packaging. The CW252016-R15J is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes.

Q: Are there any compliance or regulatory considerations?

A: The CW252016-R15J is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The PM1008-R15K is RoHS non-compliant. For applications subject to RoHS regulations, the CW252016-R15J is the required choice.