1812-562K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The API Delevan Inc. 1812-562K is a 5.6 µH unshielded ferrite core inductor rated for 427 mA maximum current with 1.1Ohm maximum DC resistance. This surface mount component is housed in a 1812 (4532 Metric) package and operates across the temperature range of -55°C to 125°C. The part maintains an active product status with 1350 pieces currently in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications requiring identical or compatible electrical and mechanical specifications.

Substiute Parts

1812-562K

API Delevan Inc.In Stock: 13611812-562K Datasheet

Current PartRFQ

CM453232-5R6JL

Bourns Inc.In Stock: 2961CM453232-5R6JL Datasheet

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CM453232-5R6KL

Bourns Inc.In Stock: 4408CM453232-5R6KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812-562K are identified based on strict electrical and mechanical parameter alignment. The substitution criteria are:

Primary Matching Parameters:

• Inductance value: 5.6 µH (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Core material: Ferrite (exact match required)
• Shielding: Unshielded (exact match required)
• DC Resistance: 1.1Ohm Max (exact match required)
• Mounting type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

• Inductance tolerance: ±10% or tighter
• Current rating: Equal to or greater than required application current
• Operating temperature range: Must encompass application requirements
• Q factor and self-resonant frequency: Within acceptable performance envelope

The Bourns Inc. CM453232 series parts (CM453232-5R6JL and CM453232-5R6KL) satisfy all primary matching parameters and maintain electrical performance characteristics within the specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

Current Rating Consideration: The 1812-562K is rated for 427 mA maximum current, while both Bourns CM453232 substitutes are rated for 300 mA. Substitution is appropriate only for applications where the required current does not exceed 300 mA. Applications requiring current above 300 mA must retain the 1812-562K.

Compliance Status: The Bourns CM453232-5R6JL and CM453232-5R6KL are ROHS3 compliant, whereas the 1812-562K is RoHS non-compliant. Selection of substitute parts provides regulatory compliance advantage for new designs subject to RoHS requirements.

Operating Temperature Range: The 1812-562K operates from -55°C to 125°C, while Bourns substitutes operate from -40°C to 125°C. Substitution is valid for applications where the minimum operating temperature does not fall below -40°C.

Inductance Tolerance: CM453232-5R6JL offers ±5% tolerance (tighter than the ±10% specification of the main part and CM453232-5R6KL). Selection of the ±5% variant provides improved inductance accuracy where circuit performance is tolerance-sensitive.

Packaging: The 1812-562K is supplied in Cut Tape (CT) format, while Bourns substitutes are supplied in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly equipment compatibility.

Frequently Asked Questions (FAQ)

Q: Can CM453232-5R6JL or CM453232-5R6KL be used as direct replacements for 1812-562K?

A: Direct substitution is valid only when application current requirements do not exceed 300 mA. The 1812-562K supports 427 mA; the Bourns parts support 300 mA. Verify application current specifications before substitution.

Q: What is the difference between CM453232-5R6JL and CM453232-5R6KL?

A: Both parts are electrically identical except for inductance tolerance. CM453232-5R6JL specifies ±5% tolerance, while CM453232-5R6KL specifies ±10% tolerance. Selection depends on circuit tolerance requirements.

Q: Are the substitute parts physically compatible with the 1812-562K footprint?

A: Yes. All three parts use the 1812 (4532 Metric) package with identical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm) and maximum seated height of 0.134" (3.40mm). PCB footprints are interchangeable.

Q: What is the impact of the lower current rating on substitution?

A: The Bourns substitutes are rated for 300 mA maximum current versus 427 mA for the 1812-562K. Applications operating above 300 mA will exceed the substitute part ratings and must use the original 1812-562K.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both CM453232-5R6JL and CM453232-5R6KL are ROHS3 compliant. The original 1812-562K is RoHS non-compliant. Designs requiring RoHS compliance should specify Bourns substitutes.

Q: What is the operating temperature difference, and does it affect substitution?

A: The 1812-562K operates from -55°C to 125°C; Bourns substitutes operate from -40°C to 125°C. Substitution is valid for applications where minimum operating temperature remains at or above -40°C.

Q: Are there differences in electrical performance between the parts?

A: All three parts maintain 5.6 µH inductance, 1.1Ohm maximum DC resistance, 50 Q factor at approximately 7.9-7.96 MHz, and 33 MHz self-resonant frequency. Electrical performance is equivalent within specified tolerances.

Q: What packaging formats are available?

A: The 1812-562K is supplied in Cut Tape (CT) format. Bourns substitutes are supplied in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly line requirements.