IMC1812RQ331J Equivalent & Substitute Parts

Part Overview

The IMC1812RQ331J is a 330 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 85 mA maximum current with 14 Ohm DC resistance. This surface mount component operates across the temperature range of -55°C to 125°C and is currently in active production status. Substitute parts are identified when electrical specifications, mechanical dimensions, and package compatibility align with the original component requirements, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

IMC1812RQ331J

Vishay DaleIn Stock: 883IMC1812RQ331J Datasheet

Current PartRFQ

CM453232-331JL

Bourns Inc.In Stock: 2444CM453232-331JL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1812RQ331J are qualified based on the following critical parameters:

• Inductance Value: 330 µH with ±5% tolerance
• Current Rating: 85 mA minimum
• DC Resistance: 14 Ohm maximum
• Core Material & Type: Ferrite drum core, wirewound construction
• Shielding Configuration: Unshielded
• Package Designation: 1812 (4532 Metric) surface mount
• Physical Footprint: 0.177" L x 0.126" W with maximum seated height of 0.134"
• Moisture Sensitivity: MSL 1 (Unlimited)

The CM453232-331JL from Bourns Inc. meets all electrical and mechanical substitution criteria for the IMC1812RQ331J, with matching inductance, current rating, DC resistance, core type, package dimensions, and moisture sensitivity classification.

Parameter Comparison

Engineering Selection Recommendations

The CM453232-331JL qualifies as a direct electrical and mechanical substitute for the IMC1812RQ331J. Both components share identical inductance values, current ratings, DC resistance specifications, core materials, package dimensions, and moisture sensitivity classifications. The CM453232-331JL offers improved regulatory compliance, with ROHS3 certification and REACH unaffected status, compared to the IMC1812RQ331J which is RoHS non-compliant and REACH affected. The operating temperature range of the CM453232-331JL extends to -40°C minimum, which is narrower than the IMC1812RQ331J at -55°C minimum; this difference is relevant only for applications requiring operation below -40°C. Both components maintain active production status and are available in tape and reel packaging.

Frequently Asked Questions (FAQ)

Q: Can the CM453232-331JL replace the IMC1812RQ331J in all applications?

A: The CM453232-331JL is electrically and mechanically compatible with the IMC1812RQ331J for applications operating within the temperature range of -40°C to 125°C. Applications requiring operation below -40°C must retain the IMC1812RQ331J due to its extended lower temperature rating of -55°C.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by matching inductance (330 µH ±5%), current rating (85 mA), DC resistance (14 Ohm maximum), core type (ferrite drum core wirewound), and shielding configuration (unshielded).

Q: Are the physical dimensions identical between these two parts?

A: Yes. Both the IMC1812RQ331J and CM453232-331JL share identical package designation (1812 / 4532 Metric), length (0.177" / 4.50mm), width (0.126" / 3.20mm), and maximum seated height (0.134" / 3.40mm).

Q: What is the difference in regulatory compliance between these parts?

A: The CM453232-331JL is ROHS3 compliant and REACH unaffected, while the IMC1812RQ331J is RoHS non-compliant and REACH affected. Applications subject to RoHS or REACH regulations should use the CM453232-331JL.

Q: Are both parts available in the same packaging format?

A: Yes. Both the IMC1812RQ331J and CM453232-331JL are supplied in tape and reel (TR) packaging suitable for automated assembly processes.