IMC1812RVR22K Equivalent & Substitute Parts

Part Overview

The IMC1812RVR22K is a 220 nH unshielded wirewound inductor manufactured by Vishay Dale, designed for surface mount applications in the 1812 (4532 Metric) package. This component is rated for 450 mA continuous current with a maximum DC resistance of 400 mOhm and operates across the temperature range of -55°C to 125°C. The part is currently active in production with 941 pieces available in stock.

Substitute parts are identified when equivalent inductance values, package dimensions, and electrical performance parameters align within acceptable tolerances for the application, enabling design flexibility and supply chain optimization.

Substiute Parts

IMC1812RVR22K

Vishay DaleIn Stock: 1006IMC1812RVR22K Datasheet

Current PartRFQ

CM453232-R22KL

Bourns Inc.In Stock: 2431CM453232-R22KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CM453232-R22KL from Bourns Inc. qualifies as a direct substitute based on the following alignment of critical parameters:

• Identical inductance value: 220 nH at ±10% tolerance
• Identical package and footprint: 1812 (4532 Metric) surface mount
• Identical physical dimensions: 0.177" L × 0.126" W (4.50mm × 3.20mm)
• Identical height when seated: 0.134" (3.40mm) maximum
• Identical inductance test frequency: 25.2 MHz
• Unshielded configuration matching the main part
• Compatible operating temperature range: -40°C to 125°C (encompasses critical operating points)

The substitute part demonstrates superior electrical performance in current rating (665 mA vs. 450 mA) and lower DC resistance (250 mOhm vs. 400 mOhm), making it suitable for applications requiring the specified inductance in the 1812 package format.

Parameter Comparison

Engineering Selection Recommendations

The CM453232-R22KL serves as a functional equivalent for applications requiring 220 nH inductance in the 1812 surface mount package. Selection between the main part and substitute should be based on compliance requirements and product status considerations.

The Bourns CM453232-R22KL carries ROHS3 compliance certification, whereas the Vishay Dale IMC1812RVR22K is RoHS non-compliant. For designs subject to RoHS directives or customer specifications requiring RoHS compliance, the Bourns substitute is the appropriate choice.

Both parts maintain identical inductance specifications, package footprints, and physical dimensions. The Bourns substitute provides enhanced electrical performance through higher current rating capacity and reduced DC resistance, offering design margin in current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the CM453232-R22KL replace the IMC1812RVR22K in existing designs?

A: Yes. Both parts share identical inductance values (220 nH ±10%), package dimensions (1812 / 4532 Metric), and mounting type (surface mount). The footprint and PCB layout remain unchanged. The Bourns part offers superior current handling (665 mA vs. 450 mA) and lower DC resistance (250 mOhm vs. 400 mOhm).

Q: What is the difference in core material between these parts?

A: The IMC1812RVR22K uses a non-magnetic core wirewound construction, while the CM453232-R22KL employs a ferrite drum core with wirewound configuration. Both achieve the same 220 nH inductance value and maintain unshielded operation.

Q: Are there temperature range differences?

A: The IMC1812RVR22K operates from -55°C to 125°C, while the CM453232-R22KL operates from -40°C to 125°C. For applications requiring operation below -40°C, the Vishay part is required. For standard industrial and commercial temperature ranges, both parts are suitable.

Q: What is the significance of the self-resonant frequency difference?

A: The IMC1812RVR22K has a self-resonant frequency of 350 MHz, while the CM453232-R22KL is rated at 200 MHz. This difference reflects the core material construction. Applications operating near or above 200 MHz should evaluate frequency response characteristics for the specific circuit topology.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance is a material composition and manufacturing process specification that does not alter the electrical performance of the inductor. The CM453232-R22KL maintains identical inductance and tolerance specifications while meeting ROHS3 compliance requirements.

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

A: Yes. Both the IMC1812RVR22K and CM453232-R22KL are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes. Physical dimensions and tape specifications are compatible with standard pick-and-place equipment.