IMC1812RVR47K Equivalent & Substitute Parts

Part Overview

The IMC1812RVR47K is a 470 nH unshielded wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1812 (4532 Metric) package. This component is classified as Active product status and is currently in stock with 778 pieces available. The part operates across a temperature range of -55°C to 125°C with a maximum DC resistance of 800mOhm and supports current ratings up to 355 mA. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and package format.

Substiute Parts

IMC1812RVR47K

Vishay DaleIn Stock: 839IMC1812RVR47K Datasheet

Current PartRFQ

CM453232-R47KL

Bourns Inc.In Stock: 15754CM453232-R47KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1812RVR47K are qualified based on the following critical parameters:

• Inductance Value: 470 nH with ±10% tolerance
• Package Format: 1812 (4532 Metric) surface mount
• Physical Dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm), Height 0.134" (3.40mm) maximum
• Current Handling: Minimum 355 mA rating
• DC Resistance: Maximum 800mOhm
• Shielding Configuration: Unshielded
• Mounting Type: Surface Mount

The CM453232-R47KL from Bourns Inc. meets all substitution criteria within these parameter boundaries, maintaining electrical equivalence and mechanical interchangeability for the 1812 package footprint.

Parameter Comparison

Engineering Selection Recommendations

The CM453232-R47KL from Bourns Inc. serves as a direct electrical and mechanical substitute for the IMC1812RVR47K. Both components maintain the same 470 nH inductance value, ±10% tolerance, and 1812 (4532 Metric) package footprint with identical physical dimensions.

The CM453232-R47KL provides performance advantages including higher current rating (545 mA versus 355 mA), lower DC resistance (320mOhm Max versus 800mOhm Max), and improved Q factor (40 versus 30 at 25.2MHz). The substitute part utilizes a ferrite drum core construction compared to the non-magnetic core of the original part, which may affect high-frequency behavior characteristics.

From a compliance perspective, the CM453232-R47KL offers superior regulatory positioning with ROHS3 compliance and REACH Unaffected status, compared to the IMC1812RVR47K which is RoHS non-compliant and REACH Affected. The operating temperature range of the substitute is -40°C to 125°C, which is narrower than the original part's -55°C to 125°C range and should be evaluated for applications requiring extended low-temperature operation.

Frequently Asked Questions (FAQ)

Q: Can the CM453232-R47KL replace the IMC1812RVR47K in existing designs?

A: Yes. Both components share identical inductance (470 nH), tolerance (±10%), package format (1812), and physical dimensions. The substitute part is mechanically and electrically compatible for PCB footprint and circuit integration.

Q: What is the difference between the core materials?

A: The IMC1812RVR47K uses a non-magnetic core, while the CM453232-R47KL uses a ferrite drum core. This difference affects frequency response characteristics and may influence performance in high-frequency applications. Core material selection should be evaluated based on specific circuit requirements.

Q: Does the lower DC resistance of the substitute part affect circuit performance?

A: The CM453232-R47KL has lower DC resistance (320mOhm Max versus 800mOhm Max), which reduces resistive losses and heat generation. This is generally beneficial for power efficiency and thermal management in most applications.

Q: What is the significance of the higher current rating in the substitute part?

A: The CM453232-R47KL supports 545 mA compared to the original 355 mA rating. This higher rating provides additional design margin and allows the substitute to operate safely in applications with higher current demands without saturation concerns.

Q: Are there temperature range considerations for substitution?

A: The CM453232-R47KL operates from -40°C to 125°C, which is narrower than the IMC1812RVR47K range of -55°C to 125°C. Applications requiring operation below -40°C must retain the original part or identify alternative substitutes with extended low-temperature ratings.

Q: What compliance advantages does the substitute part offer?

A: The CM453232-R47KL is ROHS3 compliant and REACH Unaffected, whereas the IMC1812RVR47K is RoHS non-compliant and REACH Affected. For applications subject to environmental regulations or customer compliance requirements, the substitute part provides regulatory alignment.

Q: How do the Q factor differences impact circuit design?

A: The CM453232-R47KL has a higher Q factor (40 versus 30 at 25.2MHz), indicating lower losses and sharper frequency response. This may improve filter performance and reduce insertion loss in RF and high-frequency applications.