IMC1210EB4R7M Equivalent & Substitute Parts

Part Overview

The IMC1210EB4R7M is a 4.7 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 224 mA continuous current with a maximum DC resistance of 1.5Ohm. This surface mount component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 757 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when design requirements necessitate alternative electrical or mechanical characteristics.

Substiute Parts

IMC1210EB4R7M

Vishay DaleIn Stock: 825IMC1210EB4R7M Datasheet

Current PartRFQ

CM322522-4R7JL

Bourns Inc.In Stock: 2240CM322522-4R7JL Datasheet

MFR RecommendedRFQ

CM322522-4R7KL

Bourns Inc.In Stock: 1762CM322522-4R7KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1210EB4R7M are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 4.7 µH (exact match required)
• DC Resistance: 1.5Ohm maximum (matching specification)
• Core type: Drum core, wirewound construction
• Shielding: Unshielded configuration
• Mounting type: Surface mount
• Package footprint: 1210 (3225 Metric) physical dimensions

Secondary Compatibility Parameters:

• Operating temperature range: Minimum -40°C to 125°C (acceptable for most applications requiring -55°C to 125°C operation, with thermal derating consideration)
• Current rating: Minimum 165 mA (lower than primary part; application current requirements must not exceed this limit)
• Inductance tolerance: ±5% to ±10% (tighter than primary ±20% specification)

The identified substitutes (CM322522-4R7JL and CM322522-4R7KL) meet the core electrical requirements of inductance, DC resistance, and core construction. Both are manufactured by Bourns Inc. and maintain the same physical footprint and surface mount configuration. The primary trade-off involves reduced current rating (165 mA versus 224 mA) and a narrower operating temperature minimum (-40°C versus -55°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Part (IMC1210EB4R7M): Select this component when the application requires the full 224 mA current rating and extended low-temperature operation down to -55°C. The iron powder core material provides the specified performance characteristics. Active production status and ROHS3 compliance ensure continued availability and regulatory compliance.

Substitute Parts (CM322522-4R7JL / CM322522-4R7KL): These Bourns components are suitable when circuit current requirements do not exceed 165 mA and operating temperature minimum is -40°C or higher. Both parts maintain ROHS3 compliance and active production status. The ferrite core material differs from the primary part but delivers equivalent inductance and DC resistance specifications. CM322522-4R7JL offers ±5% tolerance; CM322522-4R7KL offers ±10% tolerance. Selection between these two depends on circuit tolerance requirements.

Compliance Considerations: All three parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating. No regulatory barriers exist for substitution within the specified electrical and thermal operating parameters.

Frequently Asked Questions (FAQ)

Q: Can CM322522-4R7JL or CM322522-4R7KL be used in place of IMC1210EB4R7M without circuit modification?

A: Substitution is possible if the application current does not exceed 165 mA and the minimum operating temperature requirement is -40°C or higher. The inductance value, DC resistance, and core construction are equivalent. Verify that your circuit current budget accommodates the lower 165 mA rating of the substitute parts.

Q: What is the difference between CM322522-4R7JL and CM322522-4R7KL?

A: Both parts are electrically and mechanically identical except for inductance tolerance. CM322522-4R7JL specifies ±5% tolerance, while CM322522-4R7KL specifies ±10% tolerance. Select CM322522-4R7JL for applications requiring tighter inductance accuracy.

Q: Why do the substitute parts have a lower current rating (165 mA vs. 224 mA)?

A: The substitute parts use ferrite core material instead of iron powder. This material selection results in a lower saturation current rating. Applications must be designed to operate within the 165 mA limit to avoid inductor saturation and performance degradation.

Q: Are there physical compatibility concerns with the substitute parts?

A: The substitute parts have slightly different physical dimensions. The Bourns components are 0.087" (2.20mm) in height versus 0.095" (2.41mm) for the Vishay part, and the width is 2.50mm versus 2.49mm. These differences are within typical PCB assembly tolerances for 1210-class surface mount components. Verify clearance in your specific board layout.

Q: What is the impact of the different core materials (iron powder vs. ferrite)?

A: Iron powder cores (IMC1210EB4R7M) and ferrite cores (CM322522 series) exhibit different frequency response characteristics. The self-resonant frequency differs (50MHz vs. 55MHz), and the Q factor may vary slightly across the operating frequency range. For applications sensitive to frequency response, conduct circuit simulation or testing to confirm performance equivalence.

Q: Can I use these parts interchangeably in production?

A: Interchangeability is limited to applications meeting all specified constraints: circuit current ≤165 mA, operating temperature ≥-40°C, and inductance tolerance requirements. Document any substitution in your design change control process and verify performance in your specific application before full production implementation.