PM0805-82NK Equivalent & Substitute Parts

Part Overview

The PM0805-82NK is an 82 nH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 400 mA with a maximum DC resistance of 420mOhm in a 0805 (2012 Metric) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

PM0805-82NK

Bourns Inc.In Stock: 792PM0805-82NK Datasheet

Current PartRFQ

PM0805-82NK-RC

Bourns Inc.In Stock: 1847PM0805-82NK-RC Datasheet

DirectRFQ

CW201212-82NJ

Bourns Inc.In Stock: 6807CW201212-82NJ Datasheet

SimilarRFQ

CW252016-82NG

Bourns Inc.In Stock: 757CW252016-82NG Datasheet

SimilarRFQ

CW252016-82NJ

Bourns Inc.In Stock: 1154CW252016-82NJ Datasheet

SimilarRFQ

PE-0805CM820KTT

Pulse ElectronicsIn Stock: 900PE-0805CM820KTT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PM0805-82NK is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 82 nH (exact match required)
• Package / Case: 0805 (2012 Metric) or larger compatible packages
• Mounting Type: Surface Mount
• Shielding: Unshielded
• Current Rating: Equal to or greater than 400 mA
• DC Resistance: Equal to or lower than 420mOhm
• Operating Temperature Range: Must encompass or exceed -55°C ~ 125°C

Substitution Categories:

Direct Equivalent (Same Package): PM0805-82NK-RC maintains the 0805 package with improved specifications (500 mA current rating, 320mOhm DCR, active status).

Compatible Alternatives (Same Package): CW201212-82NJ provides 0805 package compatibility with enhanced current rating (500 mA) and lower DCR (320mOhm), with tighter tolerance (±5%).

Functional Alternatives (Larger Package): CW252016-82NG and CW252016-82NJ use the 1008 (2520 Metric) package with higher current ratings (600 mA) and superior DCR performance (220mOhm Max), suitable for applications where package size increase is acceptable.

Cross-Manufacturer Alternative: PE-0805CM820KTT from Pulse Electronics maintains the 0805 package with equivalent current rating (400 mA) and comparable DCR (360mOhm Max).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Footprint): PM0805-82NK-RC is the primary direct equivalent. It maintains the 0805 package footprint, provides superior electrical performance (500 mA vs 400 mA, 320mOhm vs 420mOhm), and carries active product status with ROHS3 compliance. The operating temperature range is -40°C ~ 125°C, which covers the upper portion of the original specification.

CW201212-82NJ offers an alternative within the same package with tighter tolerance (±5% vs ±10%), higher current capacity (500 mA), and lower DCR (320mOhm). Active status and ROHS3 compliance are confirmed.

PE-0805CM820KTT from Pulse Electronics provides cross-manufacturer compatibility in the 0805 package with matching current rating (400 mA) and active product status with ROHS3 compliance.

For Applications Allowing Package Size Increase: CW252016-82NG and CW252016-82NJ use the larger 1008 (2520 Metric) package with significantly improved electrical performance (600 mA current rating, 220mOhm DCR). CW252016-82NG offers superior tolerance (±2%), while CW252016-82NJ provides ±5% tolerance. Both are active products with ROHS3 compliance.

Compliance Considerations: All substitute parts listed carry ROHS3 compliance, addressing the RoHS non-compliant status of the original PM0805-82NK. All parts maintain REACH Unaffected status and EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can PM0805-82NK-RC be used as a direct drop-in replacement? A: Yes. PM0805-82NK-RC maintains the identical 0805 (2012 Metric) package and footprint. It provides improved electrical specifications (higher current rating and lower DCR) with no layout modifications required. The operating temperature range is -40°C ~ 125°C versus the original -55°C ~ 125°C.

Q: What is the difference between CW201212-82NJ and CW252016-82NG? A: CW201212-82NJ uses the 0805 (2012 Metric) package with 500 mA current rating and 320mOhm DCR. CW252016-82NG uses the larger 1008 (2520 Metric) package with 600 mA current rating and 220mOhm DCR. Package selection depends on available PCB space and thermal requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts carry ROHS3 compliance, addressing the RoHS non-compliant status of the original PM0805-82NK.

Q: Can I use PE-0805CM820KTT from Pulse Electronics? A: Yes. PE-0805CM820KTT maintains the 0805 package with equivalent current rating (400 mA) and comparable DCR (360mOhm Max). It is a cross-manufacturer alternative with active product status and ROHS3 compliance.

Q: What happens if my circuit requires the -55°C lower temperature limit? A: The substitute parts listed operate from -40°C minimum. If -55°C operation is required, design review is necessary to confirm whether the -40°C ~ 125°C range is acceptable for the application.

Q: Which substitute offers the best DCR performance? A: CW252016-82NG and CW252016-82NJ both offer 220mOhm Max DCR, the lowest among all listed parts. This comes with the trade-off of a larger 1008 (2520 Metric) package.

Q: Can I mix different substitute parts in the same design? A: Yes, provided the circuit topology accommodates the electrical parameter variations. Parts using the same package (0805) are interchangeable without layout changes. Parts using different packages (1008) require PCB layout modifications.