IMC1812EB820K Equivalent & Substitute Parts

Part Overview

The IMC1812EB820K is a 82 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1812 (4532 Metric) package. This component is rated for 120 mA maximum current with a maximum DC resistance of 7 Ohm and operates across the temperature range of -55°C to 125°C. The part is currently active in production and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

IMC1812EB820K

Vishay DaleIn Stock: 1117IMC1812EB820K Datasheet

Current PartRFQ

CM453232-820KL

Bourns Inc.In Stock: 864CM453232-820KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1812EB820K are qualified based on the following critical parameters that must match or remain within acceptable tolerances:

• Inductance value: 82 µH with ±10% tolerance
• Current rating: 120 mA minimum
• DC resistance: 7 Ohm maximum
• Package / Case: 1812 (4532 Metric) form factor
• Mounting type: Surface mount
• Shielding configuration: Unshielded
• Q factor and self-resonant frequency characteristics
• RoHS3 compliance and environmental certifications

The CM453232-820KL from Bourns Inc. meets all these electrical and mechanical requirements and qualifies as a direct substitute. While the core material differs (ferrite versus iron powder), both configurations deliver equivalent electrical performance at the specified operating parameters. The operating temperature range differs slightly (-40°C to 125°C versus -55°C to 125°C), which may be a consideration for applications requiring the full lower temperature specification.

Parameter Comparison

Engineering Selection Recommendations

Both the IMC1812EB820K and CM453232-820KL are active production components with equivalent electrical specifications and full regulatory compliance. Selection between these parts should be based on:

• Availability and lead time requirements
• Packaging format preference (Bulk versus Tape & Reel)
• Operating temperature range requirements (the Vishay Dale part supports -55°C minimum versus -40°C for the Bourns part)
• Core material preference for specific application environments (iron powder versus ferrite)
• Inventory status and cost considerations

Both parts carry ROHS3 compliance, REACH unaffected status, and identical EAR99 export classification, making them suitable for equivalent design implementations.

Frequently Asked Questions (FAQ)

Q: Can CM453232-820KL be used as a direct replacement for IMC1812EB820K?

A: Yes, the CM453232-820KL qualifies as a direct electrical and mechanical substitute. Both parts share identical inductance (82 µH), current rating (120 mA), DC resistance (7 Ohm max), package dimensions (1812 / 4532 Metric), and frequency characteristics. The primary difference is the operating temperature minimum (-40°C versus -55°C), which must be evaluated against application requirements.

Q: What is the difference between iron powder and ferrite core materials in these inductors?

A: The IMC1812EB820K uses iron powder core material, while the CM453232-820KL uses ferrite. Both configurations deliver the specified electrical performance at the rated operating parameters. Core material selection affects thermal characteristics, frequency response, and environmental stability. Application-specific testing may be required if core material change is critical to system performance.

Q: Are the package dimensions identical between these parts?

A: Yes. Both the IMC1812EB820K and CM453232-820KL 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). They are mechanically interchangeable on PCB layouts.

Q: What packaging formats are available?

A: The IMC1812EB820K is supplied in Bulk packaging, while the CM453232-820KL is supplied in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly process requirements.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. They meet identical environmental and regulatory requirements.