PM20-5R6K Equivalent & Substitute Parts Reference

Part Overview

The PM20-5R6K is a 5.6 µH unshielded molded inductor manufactured by Bourns Inc., rated for 200 mA with a maximum DC resistance of 1.8Ohm. This component operates across the temperature range of -55°C to 125°C in a 1210 (3225 Metric) surface mount package. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Inductance	5.6 µH
Tolerance	±10%
Current Rating	200 mA
DC Resistance (Max)	1.8Ohm
Shielding	Unshielded
Core Material	Ferrite
Package / Case	1210 (3225 Metric)
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Q @ Frequency	30 @ 7.96MHz

Substitute Part Grouping Explanation

Substitution eligibility for the PM20-5R6K is determined by the following critical parameters:

Inductance Value: Must be 5.6 µH
Core Material: Must be ferrite
Shielding Configuration: Must be unshielded
Mounting Type: Must be surface mount
Package Compatibility: Physical dimensions and height must accommodate 1210 (3225 Metric) footprint requirements
Current Rating: Must meet or exceed 200 mA requirement
DC Resistance: Must not exceed 1.8Ohm maximum
Operating Temperature Range: Must support -55°C to 125°C minimum

The following parts satisfy these substitution criteria:

CM322522-5R6JL and CM322522-5R6KL (Bourns Inc., Active Status): Both feature 5.6 µH inductance with ferrite core and unshielded configuration. Current rating of 160 mA falls below the 200 mA requirement; however, DC resistance of 1.6Ohm is superior. Physical dimensions match 1210 footprint specifications.

1210-562J (API Delevan Inc., Active Status): Provides 5.6 µH inductance with ferrite core, unshielded design, and 1210 package format. Current rating of 341 mA exceeds the 200 mA requirement. DC resistance of 1.6Ohm is within acceptable limits. Operating temperature range matches -55°C to 125°C specification.

Parameter Comparison

Parameter	PM20-5R6K (Main)	CM322522-5R6JL	CM322522-5R6KL	1210-562J
Manufacturer	Bourns Inc.	Bourns Inc.	Bourns Inc.	API Delevan Inc.
Inductance	5.6 µH	5.6 µH	5.6 µH	5.6 µH
Tolerance	±10%	±5%	±10%	±5%
Current Rating (Amps)	200 mA	160 mA	160 mA	341 mA
DC Resistance (Max)	1.8Ohm	1.6Ohm	1.6Ohm	1.6Ohm
Shielding	Unshielded	Unshielded	Unshielded	Unshielded
Core Material	Ferrite	Ferrite	Ferrite	Ferrite
Package / Case	1210 (3225 Metric)	Nonstandard	Nonstandard	1210 (3225 Metric)
Operating Temperature	-55°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C
Q @ Frequency	30 @ 7.96MHz	30 @ 7.96MHz	30 @ 7.96MHz	30 @ 7.9MHz
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

1210-562J (API Delevan Inc.) is the primary substitute for the PM20-5R6K. This part maintains full compatibility with the original 1210 (3225 Metric) package footprint, supports the complete -55°C to 125°C operating temperature range, and provides superior current handling at 341 mA. DC resistance of 1.6Ohm meets specification requirements. The part is currently in active production status, ensuring long-term availability.

CM322522-5R6KL (Bourns Inc.) offers an alternative with active product status and ROHS3 compliance. The ±10% inductance tolerance matches the original specification. However, the 160 mA current rating is below the 200 mA requirement, and the nonstandard package designation requires physical verification against PCB layout constraints. The operating temperature minimum of -40°C does not extend to the original -55°C specification.

CM322522-5R6JL (Bourns Inc.) provides tighter ±5% inductance tolerance and ROHS3 compliance but shares the same current rating and temperature limitations as CM322522-5R6KL.

Frequently Asked Questions (FAQ)

Q: Can CM322522-5R6JL or CM322522-5R6KL be used as direct replacements for PM20-5R6K?

A: These parts meet inductance, core material, shielding, and DC resistance requirements. However, the 160 mA current rating is insufficient for applications requiring the full 200 mA specification. The nonstandard package designation requires physical dimension verification against the original 1210 footprint. The -40°C minimum operating temperature does not support the original -55°C lower limit.

Q: What is the primary advantage of 1210-562J over the original PM20-5R6K?

A: The 1210-562J maintains identical package footprint compatibility, extends current handling capability to 341 mA, and is in active production. It supports the full -55°C to 125°C temperature range and provides equivalent DC resistance performance.

Q: Are there RoHS compliance considerations for substitution?

A: The PM20-5R6K is RoHS non-compliant. CM322522-5R6JL and CM322522-5R6KL are ROHS3 compliant, offering environmental compliance advantages for new designs. The 1210-562J maintains RoHS non-compliant status matching the original part.

Q: How do tolerance specifications affect part selection?

A: The PM20-5R6K specifies ±10% inductance tolerance. CM322522-5R6JL offers tighter ±5% tolerance, which may improve circuit performance in applications sensitive to inductance variation. CM322522-5R6KL and 1210-562J maintain ±10% and ±5% tolerances respectively.

Q: What physical considerations apply to the nonstandard package designation?

A: CM322522-5R6JL and CM322522-5R6KL carry nonstandard package designations despite matching 1210 footprint dimensions (0.126" L x 0.098" W, 3.20mm x 2.50mm). Physical verification of height (0.087" / 2.20mm seated) and component placement against PCB layout is required before implementation.

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