IMC1812EB560K Equivalent & Substitute Parts

Part Overview

The IMC1812EB560K is a 56 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 135 mA maximum current with 5.5Ohm DC resistance. This surface mount component operates across -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1109 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the same package footprint and performance envelope.

Substiute Parts

IMC1812EB560K

Vishay DaleIn Stock: 1179IMC1812EB560K Datasheet

Current PartRFQ

744766156

Würth ElektronikIn Stock: 1593744766156 Datasheet

MFR RecommendedRFQ

CM453232-560KL

Bourns Inc.In Stock: 2999CM453232-560KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IMC1812EB560K are qualified based on the following criteria:

• Inductance Value: Exact match at 56 µH with ±10% tolerance
• Current Rating: Minimum 135 mA capability
• DC Resistance: Maximum 5.5Ohm
• Package Footprint: 1812 (4532 Metric) surface mount
• Q Factor: 50 @ 2.52MHz
• Compliance: ROHS3 compliant, MSL 1 rating
• Electrical Test Frequency: 2.52 MHz

Two qualified substitutes meet these parameters: Würth Elektronik 744766156 and Bourns Inc. CM453232-560KL. Both maintain electrical equivalence and mechanical compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance with MSL 1 rating. Selection between the main part and substitutes depends on application-specific temperature requirements and PCB height constraints.

The IMC1812EB560K (Vishay Dale) supports the full operating range of -55°C to 125°C and maintains a seated height of 0.134" (3.40mm).

The 744766156 (Würth Elektronik) operates within -40°C to 105°C with a seated height of 0.142" (3.60mm). The reduced upper temperature limit and increased height should be evaluated against board layout and thermal environment specifications.

The CM453232-560KL (Bourns Inc.) operates across -40°C to 125°C with a seated height of 0.134" (3.40mm), matching the original part's height profile while maintaining the full upper temperature specification.

All three parts are electrically equivalent at the specified test frequency of 2.52 MHz with identical inductance, current rating, DC resistance, and Q factor values.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 744766156 be used in applications requiring -55°C operation?

A: No. The 744766156 operates from -40°C to 105°C. Applications requiring -55°C minimum temperature must use the IMC1812EB560K or CM453232-560KL.

Q: What is the impact of the 0.008" (0.20mm) height difference between the Würth part and the original?

A: The 744766156 has a maximum seated height of 0.142" (3.60mm) compared to 0.134" (3.40mm) for the IMC1812EB560K and CM453232-560KL. PCB clearance and component stacking must be evaluated for the specific application.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 1812 (4532 Metric) surface mount package with identical footprint dimensions of 0.177" L x 0.126" W (4.50mm x 3.20mm).

Q: Do the different core materials affect circuit performance?

A: The IMC1812EB560K uses iron powder core material while both substitutes use ferrite core material. All three parts meet the specified electrical parameters at 2.52 MHz test frequency with identical inductance, tolerance, current rating, DC resistance, and Q factor.

Q: Which substitute offers the best thermal performance?

A: The CM453232-560KL (Bourns Inc.) maintains the full -40°C to 125°C operating range of the original part, matching the upper temperature specification while the Würth part is limited to 105°C maximum.