PM1008-R82K Equivalent & Substitute Parts

Part Overview

The PM1008-R82K is a 820 nH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 400 mA with 1.61Ohm DC resistance in a 1008 (2520 Metric) surface mount package. This part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

PM1008-R82K

Bourns Inc.In Stock: 890PM1008-R82K Datasheet

Current PartRFQ

PM1008-R82K-RC

Bourns Inc.In Stock: 4903PM1008-R82K-RC Datasheet

DirectRFQ

CW252016-R82J

Bourns Inc.In Stock: 14160CW252016-R82J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PM1008-R82K is determined by matching the following critical parameters: inductance value (820 nH), package form factor (1008 / 2520 Metric), mounting type (surface mount), core material (ceramic), and shielding configuration (unshielded). Current rating, DC resistance, and operating temperature range are secondary considerations that may vary within acceptable design tolerances.

The substitute parts identified maintain the same inductance, package, and core specifications. Variations in current rating, DC resistance, and temperature range reflect manufacturing improvements and compliance updates rather than functional incompatibility.

Parameter Comparison

Engineering Selection Recommendations

PM1008-R82K-RC is the direct equivalent from Bourns Inc., maintaining identical inductance, tolerance, DC resistance, and electrical characteristics while offering active product status and ROHS3 compliance. This part is the primary substitute for obsolete PM1008-R82K applications.

CW252016-R82J provides an alternative from the same manufacturer with identical inductance and package specifications. This part features tighter inductance tolerance (±5% versus ±10%), higher DC resistance (2.3Ohm Max versus 1.61Ohm), and reduced current rating (360 mA versus 400 mA). Selection of CW252016-R82J requires verification that the higher DC resistance and lower current rating are acceptable for the target application.

Both substitute parts are ROHS3 compliant and available in Tape & Reel packaging, supporting modern manufacturing and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can PM1008-R82K-RC directly replace PM1008-R82K? A: Yes. PM1008-R82K-RC maintains identical inductance (820 nH), tolerance (±10%), DC resistance (1.61Ohm), and package specifications (1008 / 2520 Metric). The primary differences are active product status, ROHS3 compliance, and reduced current rating (360 mA versus 400 mA). Verify that 360 mA current rating is sufficient for your application.

Q: What are the key differences between PM1008-R82K-RC and CW252016-R82J? A: Both parts share the same inductance (820 nH) and package (1008 / 2520 Metric). CW252016-R82J offers tighter inductance tolerance (±5%) but has higher DC resistance (2.3Ohm Max versus 1.61Ohm) and lower current rating (360 mA). Selection depends on whether the higher DC resistance and lower current rating are compatible with circuit requirements.

Q: Are the substitute parts pin-compatible with PM1008-R82K? A: Yes. All parts use identical 1008 (2520 Metric) surface mount package specifications with matching footprints and mounting requirements.

Q: What is the impact of operating temperature range differences? A: PM1008-R82K operates from -55°C to 125°C, while both substitute parts operate from -40°C to 125°C. Applications requiring operation below -40°C cannot use the substitute parts. Verify your application's minimum operating temperature requirement.

Q: Why is PM1008-R82K obsolete? A: Product obsolescence reflects manufacturing discontinuation by Bourns Inc. PM1008-R82K-RC and CW252016-R82J are active alternatives that provide equivalent or improved specifications with current compliance certifications.