1210HS-273EMFS Equivalent & Substitute Parts

Part Overview

The 1210HS-273EMFS is a 27 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, designed for surface mount applications in the 1210 (3225 Metric) package. This component operates at 125 mA current rating with 3.1Ω DC resistance and is rated for -40°C to 85°C operating temperature range.

The 1210HS-273EMFS carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductance value and package format.

Substiute Parts

1210HS-273EMFS

Delta Electronics/ComponentsIn Stock: 8511210HS-273EMFS Datasheet

Current PartRFQ

NLV32T-270J-EF

TDK CorporationIn Stock: 25147NLV32T-270J-EF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1210HS-273EMFS is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 27 µH (exact match required)
• Package format: 1210 (3225 Metric) surface mount
• Core type: Ferrite drum core, unshielded
• Self resonant frequency: 20 MHz

Secondary Compatibility Factors:

• Current rating must equal or exceed 125 mA
• DC resistance must be compatible with circuit design requirements
• Operating temperature range must support application environment
• RoHS3 compliance and MSL rating must meet procurement standards

The substitute part NLV32T-270J-EF from TDK Corporation matches the primary criteria of inductance value, package format, core type, and self resonant frequency. However, the current rating (80 mA) is lower than the main part specification (125 mA), and DC resistance (5Ω Max) is higher than the main part (3.1Ω). These differences require circuit-level evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the 1210HS-273EMFS:

The NLV32T-270J-EF from TDK Corporation is available as an active product with established supply chain presence (25,128 pcs in stock versus 741 pcs for the obsolete Delta part). Both components share identical inductance values, package formats, core materials, and self resonant frequencies.

Critical Considerations:

The NLV32T-270J-EF operates at a maximum current rating of 80 mA, which is 35% lower than the 1210HS-273EMFS specification of 125 mA. Applications operating at or near 125 mA current levels cannot use this substitute without circuit redesign or component derating analysis.

The NLV32T-270J-EF exhibits higher DC resistance (5Ω Max versus 3.1Ω), resulting in increased power dissipation. This parameter difference affects thermal performance and must be evaluated against circuit power budget requirements.

The NLV32T-270J-EF provides superior inductance tolerance (±5% versus ±20%), which may benefit applications requiring tighter inductance specifications. The extended operating temperature range (-40°C to 105°C versus -40°C to 85°C) supports broader environmental applications.

Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the NLV32T-270J-EF directly replace the 1210HS-273EMFS in all applications?

A: No. While both components share the same inductance value and package format, the NLV32T-270J-EF current rating (80 mA) is insufficient for applications requiring the full 125 mA specification of the 1210HS-273EMFS. Circuit-level evaluation is required to determine compatibility for specific applications.

Q: What is the impact of the higher DC resistance in the NLV32T-270J-EF?

A: The NLV32T-270J-EF exhibits 5Ω maximum DC resistance compared to 3.1Ω for the 1210HS-273EMFS. This 61% increase in resistance results in higher power dissipation (P = I²R) at equivalent current levels. Applications with strict power budget constraints must account for this difference.

Q: Are both components physically compatible with the same PCB footprint?

A: Both components use the 1210 (3225 Metric) surface mount package. Physical dimensions are similar: 1210HS-273EMFS measures 3.50mm L × 2.80mm W × 2.40mm H (max seated height), while NLV32T-270J-EF measures 3.20mm L × 2.50mm W × 2.40mm H (max seated height). Both fit standard 1210 footprints, though the NLV32T-270J-EF is slightly smaller in length and width.

Q: What is the significance of the inductance tolerance difference?

A: The 1210HS-273EMFS carries ±20% tolerance, while the NLV32T-270J-EF carries ±5% tolerance. The tighter tolerance of the substitute part provides better inductance consistency across production batches, which may improve circuit performance in applications sensitive to inductance variation.

Q: Why is the 1210HS-273EMFS marked as Obsolete?

A: The Obsolete status indicates the 1210HS-273EMFS is no longer in active production by Delta Electronics/Components. Existing inventory (741 pcs) represents remaining stock. The NLV32T-270J-EF from TDK Corporation is an active product with ongoing manufacturing and supply availability.

Q: Can the NLV32T-270J-EF operate at higher temperatures than the 1210HS-273EMFS?

A: Yes. The NLV32T-270J-EF operates across -40°C to 105°C, extending 20°C above the 1210HS-273EMFS upper limit of 85°C. Applications requiring operation in elevated temperature environments may benefit from this extended range.

Q: Are there compliance or regulatory differences between these components?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) ratings. The 1210HS-273EMFS carries REACH Unaffected status, while the NLV32T-270J-EF carries REACH Affected status. Both use identical ECCN (EAR99) and HTSUS classifications for export control and tariff purposes.