NLFC453232T-2R2M-PF Equivalent & Substitute Parts

Part Overview

The NLFC453232T-2R2M-PF is a 2.2 µH shielded wirewound inductor manufactured by TDK Corporation, rated for 600 mA with 70mOhm DC resistance in a 1812 (4532 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Inductance	2.2 µH
Tolerance	±20%
Current Rating	600 mA
DC Resistance (DCR)	70mOhm
Shielding	Shielded
Package / Case	1812 (4532 Metric)
Operating Temperature	-40°C ~ 105°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the NLFC453232T-2R2M-PF is determined by the following criteria:

Primary Matching Parameters:

Inductance value: 2.2 µH (exact match required)
Inductance tolerance: ±20% or tighter
Current rating: equal to or greater than 600 mA
Package / Case: 1812 (4532 Metric) or mechanically compatible footprint
Surface mount mounting type
RoHS3 compliance

Secondary Considerations:

DC resistance within acceptable operational limits
Operating temperature range encompassing -40°C to 105°C minimum
Shielding configuration (shielded preferred for EMI-sensitive applications)

Three active substitute parts meet these criteria with varying electrical characteristics and shielding configurations.

Parameter Comparison

Parameter	NLFC453232T-2R2M-PF (Main)	NLCV32T-2R2M-EF	CC453232-2R2KL	S1812R-222K
Manufacturer	TDK Corporation	TDK Corporation	Bourns Inc.	API Delevan Inc.
Inductance	2.2 µH	2.2 µH	2.2 µH	2.2 µH
Tolerance	±20%	±20%	±10%	±10%
Current Rating (Amps)	600 mA	770 mA	850 mA	658 mA
DC Resistance (DCR)	70mOhm	169mOhm Max	180mOhm Max	460mOhm Max
Shielding	Shielded	Unshielded	Unshielded	Shielded
Package / Case	1812 (4532 Metric)	1210 (3225 Metric)	1812 (4532 Metric)	1812 (4532 Metric)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 125°C	-55°C ~ 125°C
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

CC453232-2R2KL (Bourns Inc.) is the primary substitute for direct replacement applications. This part maintains identical package dimensions (1812 / 4532 Metric), matches the 2.2 µH inductance specification, and exceeds the 600 mA current requirement at 850 mA. The ±10% tolerance provides tighter inductance control than the original ±20%. Operating temperature range extends to 125°C, providing additional thermal margin. Unshielded configuration requires EMI assessment in sensitive circuit environments.

S1812R-222K (API Delevan Inc.) provides an alternative with shielded construction, preserving EMI containment characteristics of the original part. Current rating of 658 mA exceeds the 600 mA requirement. The 1812 package footprint ensures mechanical compatibility. Higher DC resistance (460mOhm Max) versus the original 70mOhm requires thermal and power dissipation evaluation. Extended operating temperature range (-55°C ~ 125°C) and ±10% tolerance offer design flexibility.

NLCV32T-2R2M-EF (TDK Corporation) maintains manufacturer continuity within the TDK product line. Current rating of 770 mA exceeds specification. However, the 1210 (3225 Metric) package represents a smaller footprint than the original 1812, requiring PCB layout modification. Unshielded configuration necessitates EMI compatibility assessment. This option is suitable for space-constrained applications where shielding is not critical.

All three substitutes are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can NLCV32T-2R2M-EF be used as a direct footprint replacement?

A: No. The NLCV32T-2R2M-EF uses a 1210 (3225 Metric) package versus the original 1812 (4532 Metric) footprint. PCB layout modification is required. CC453232-2R2KL and S1812R-222K maintain identical 1812 package dimensions for direct footprint compatibility.

Q: What is the impact of higher DC resistance in substitute parts?

A: DC resistance directly affects power dissipation and thermal performance. S1812R-222K exhibits 460mOhm Max versus the original 70mOhm, resulting in increased heat generation at rated current. Thermal analysis is required to confirm acceptability in the target application. CC453232-2R2KL (180mOhm Max) and NLCV32T-2R2M-EF (169mOhm Max) present moderate increases.

Q: Are unshielded substitutes suitable for my application?

A: Unshielded inductors (CC453232-2R2KL and NLCV32T-2R2M-EF) may introduce electromagnetic interference in sensitive circuits. Applications requiring EMI containment should prioritize S1812R-222K, which maintains shielded construction. Circuit-level EMI assessment determines acceptability.

Q: Do all substitutes meet the original operating temperature range?

A: Yes. All three substitutes support the original -40°C ~ 105°C range. CC453232-2R2KL and S1812R-222K extend the upper limit to 125°C, providing additional thermal margin beyond the original specification.

Q: What tolerance differences exist between the main part and substitutes?

A: The original NLFC453232T-2R2M-PF specifies ±20% inductance tolerance. CC453232-2R2KL and S1812R-222K offer ±10% tolerance, providing tighter inductance control. NLCV32T-2R2M-EF maintains ±20% tolerance matching the original specification.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All three substitute parts are ROHS3 compliant, maintaining regulatory compliance with the original component.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message