1210HS-471EMFS Equivalent & Substitute Parts Reference

Part Overview

The 1210HS-471EMFS is a 470 nH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components. This surface mount component is rated for 530 mA continuous current with a DC resistance of 250 mOhm and operates across the temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility for new designs and production continuity.

Substiute Parts

1210HS-471EMFS

Delta Electronics/ComponentsIn Stock: 12161210HS-471EMFS Datasheet

Current PartRFQ

NLCV32T-R47M-EFR

TDK CorporationIn Stock: 22375NLCV32T-R47M-EFR Datasheet

DirectRFQ

744764004

Würth ElektronikIn Stock: 49335744764004 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1210HS-471EMFS is determined by strict alignment of the following electrical and mechanical parameters:

Primary Matching Criteria:

• Inductance value: 470 nH with ±20% tolerance
• Package / Case: 1210 (3225 Metric) surface mount
• Core material: Ferrite, unshielded drum core construction
• Inductance test frequency: 25.2 MHz

Secondary Compatibility Criteria:

• Current rating must equal or exceed 530 mA
• DC resistance must be compatible with circuit requirements
• Operating temperature range must support application environment
• RoHS3 compliance and MSL rating must be maintained

The identified substitute parts meet the primary matching criteria. Variations in current rating, DC resistance, and self-resonant frequency are documented to enable informed selection based on specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

NLCV32T-R47M-EFR (TDK Corporation): This substitute is an active product with superior current handling capability (2 A versus 530 mA) and significantly lower DC resistance (45.6 mOhm Max versus 250 mOhm). The extended operating temperature range (-40°C to 105°C) provides additional thermal margin. TDK maintains active production status with established supply chain availability. ROHS3 compliance and MSL 1 rating ensure regulatory and environmental compatibility. The lower Q factor (10 @ 25.2 MHz) and reduced self-resonant frequency (250 MHz) should be evaluated against circuit frequency response requirements.

744764004 (Würth Elektronik): This substitute is an active product with current rating (450 mA) closely aligned to the original specification. DC resistance (500 mOhm Max) is higher than the original component, requiring circuit analysis to confirm acceptable performance. The extended operating temperature range (-40°C to 105°C) and higher self-resonant frequency (480 MHz) provide design flexibility. Würth Elektronik maintains active production with established supply availability. ROHS3 compliance and MSL 1 rating are maintained. The Q factor (30 @ 25.2 MHz) closely matches the original component.

Both substitutes maintain identical inductance value, tolerance, package dimensions, and core construction. Selection between alternatives depends on circuit requirements for current capacity, DC resistance losses, and frequency response characteristics.

Frequently Asked Questions (FAQ)

Q: Can NLCV32T-R47M-EFR replace 1210HS-471EMFS in all applications?

A: NLCV32T-R47M-EFR matches the core electrical specifications (470 nH inductance, ±20% tolerance, 1210 package, ferrite unshielded core). The higher current rating (2 A) and lower DC resistance (45.6 mOhm Max) are compatible with circuits designed for the original 530 mA component. However, the reduced Q factor (10 versus 35) and lower self-resonant frequency (250 MHz versus 300 MHz) may affect high-frequency circuit performance. Circuit-level validation is required for frequency-sensitive applications.

Q: What is the primary difference between the two substitute options?

A: NLCV32T-R47M-EFR provides superior current capacity (2 A) and lower losses (45.6 mOhm DCR), making it suitable for high-current applications. 744764004 maintains current rating (450 mA) closer to the original specification with comparable Q factor (30), making it suitable for applications where the original performance envelope must be preserved. DC resistance of 744764004 (500 mOhm Max) is higher than both alternatives.

Q: Are the physical dimensions compatible with the original PCB layout?

A: Both substitutes use the 1210 (3225 Metric) package with identical maximum seated height (0.094" / 2.40mm). NLCV32T-R47M-EFR has slightly smaller footprint dimensions (3.20mm x 2.50mm) compared to the original (3.50mm x 2.80mm), allowing direct PCB substitution. 744764004 also uses 3.20mm x 2.50mm footprint. Both components are compatible with existing 1210 package land patterns.

Q: Do the substitute parts maintain regulatory compliance?

A: Both NLCV32T-R47M-EFR and 744764004 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original component's compliance profile. Both are REACH Unaffected and classified as EAR99 for export control purposes.

Q: What is the impact of different Q factors on circuit performance?

A: Q factor represents the ratio of reactance to resistance at a specified frequency (25.2 MHz). The original component (Q=35) has lower losses than NLCV32T-R47M-EFR (Q=10) at this frequency. 744764004 (Q=30) closely matches the original. In high-frequency filtering or resonant circuits, lower Q factor results in broader bandwidth and reduced selectivity. Circuit simulation is recommended for frequency-dependent applications.

Q: Can these parts be used interchangeably in production?

A: Both substitutes are available in Tape & Reel packaging suitable for automated assembly, whereas the original component is listed as bulk inventory. NLCV32T-R47M-EFR and 744764004 are both active products with established supply chains. Interchangeability depends on circuit requirements for current capacity, DC resistance, and frequency response. Design validation and qualification testing are required before production transition.