1210HS-272EKFS Equivalent & Substitute Parts

Part Overview

The 1210HS-272EKFS is a 2.7 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, rated for 320 mA continuous current with 900mOhm DC resistance. This surface mount component is designed for applications requiring fixed inductance in compact 1210 (3225 Metric) package format.

The 1210HS-272EKFS carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems or redesign initiatives.

Substiute Parts

1210HS-272EKFS

Delta Electronics/ComponentsIn Stock: 8881210HS-272EKFS Datasheet

Current PartRFQ

NLV32T-2R2J-EFD

TDK CorporationIn Stock: 3338NLV32T-2R2J-EFD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute relationships for the 1210HS-272EKFS are determined by the following critical parameters:

Primary Compatibility Criteria:

• Package / Case: 1210 (3225 Metric) surface mount format
• Core Type: Ferrite drum core, wirewound construction
• Shielding: Unshielded configuration
• Current Rating: 320 mA minimum
• Mounting Type: Surface mount

Secondary Compatibility Criteria:

• Inductance value within acceptable tolerance range for circuit function
• DC Resistance (DCR) within acceptable operating parameters
• Operating temperature range compatibility
• Frequency characteristics (Q factor, self-resonant frequency) suitable for application bandwidth

The substitute part NLV32T-2R2J-EFD meets the primary compatibility criteria through identical package format, core type, shielding configuration, and current rating. The inductance value differs (2.2 µH vs. 2.7 µH), representing a 18.5% reduction from the original specification. This difference falls within the combined tolerance windows of both components (±10% for 1210HS-272EKFS and ±5% for NLV32T-2R2J-EFD) and is acceptable for applications where inductance variation within this range does not compromise circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The NLV32T-2R2J-EFD is a valid substitute for the 1210HS-272EKFS based on matching primary compatibility criteria: identical package format (1210/3225 Metric), core type (ferrite drum core), shielding configuration (unshielded), current rating (320 mA), and mounting type (surface mount).

Product Status Consideration:

The main part 1210HS-272EKFS is classified as Obsolete, making the active-status NLV32T-2R2J-EFD from TDK Corporation the appropriate alternative for ongoing supply requirements. The substitute part is currently in production with established inventory availability (3321 Pcs in stock).

Compliance and Certification:

Both parts meet ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity requirements. The substitute part carries AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components. The substitute is subject to REACH compliance (REACH Affected), whereas the main part is REACH Unaffected; this distinction must be evaluated against specific regulatory requirements for the end application.

Parameter Variance Analysis:

The inductance difference (2.2 µH vs. 2.7 µH) represents an 18.5% reduction. This variance is acceptable for applications where circuit performance tolerates inductance variation within the combined tolerance envelope. The DC resistance increase (900 mOhm to 1 Ohm maximum) represents an 11% increase and must be evaluated for thermal and efficiency impacts in power-sensitive applications.

The self-resonant frequency reduction (150 MHz to 75 MHz) in the substitute part narrows the usable frequency bandwidth. Applications operating near or above 75 MHz must verify that the substitute part's frequency characteristics remain compatible with circuit requirements.

Temperature Range:

The substitute part extends the upper operating temperature limit from 85°C to 105°C, providing improved thermal margin for high-temperature environments.

Frequently Asked Questions (FAQ)

Q: Can the NLV32T-2R2J-EFD directly replace the 1210HS-272EKFS without circuit modification?

A: Direct replacement is possible for applications where the 18.5% inductance reduction (2.2 µH vs. 2.7 µH) and 11% DC resistance increase (900 mOhm to 1 Ohm) do not compromise circuit performance. Circuit simulation or testing is required to confirm compatibility for inductance-critical applications such as resonant circuits, impedance matching networks, or frequency-dependent filters.

Q: What is the impact of the lower self-resonant frequency (75 MHz vs. 150 MHz) in the substitute part?

A: The substitute part's self-resonant frequency of 75 MHz limits its effective operating range compared to the main part's 150 MHz. Applications utilizing frequencies above 75 MHz may experience degraded inductor performance. Verify that the application's operating frequency remains below the substitute part's self-resonant frequency.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts use the 1210 (3225 Metric) package format with identical maximum seated height (0.094" / 2.40mm). The substitute part has slightly smaller length and width dimensions (3.20mm x 2.50mm vs. 3.50mm x 2.80mm) but fits the same PCB footprint. No layout modifications are required.

Q: What is the significance of the AEC-Q200 certification on the substitute part?

A: AEC-Q200 is an automotive industry qualification standard ensuring component reliability under automotive operating conditions. This certification is relevant only if the application requires automotive-grade components. For non-automotive applications, this certification provides no additional functional benefit.

Q: How does the packaging difference (Bulk vs. Tape & Reel) affect substitution?

A: The main part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact component functionality. Tape & Reel packaging is standard for automated assembly operations.

Q: What is the REACH compliance difference between the two parts?

A: The main part is REACH Unaffected, indicating it contains no substances of concern under REACH regulations. The substitute part is REACH Affected, meaning it contains one or more REACH-regulated substances. For applications subject to REACH compliance requirements, the substitute part's regulatory status must be verified against specific end-use regulations.

Q: Is the tighter inductance tolerance (±5% vs. ±10%) of the substitute part beneficial?

A: The substitute part's ±5% tolerance provides tighter inductance control compared to the main part's ±10% tolerance. This tighter tolerance reduces inductance variation across production batches, which is beneficial for applications requiring consistent circuit performance. However, this advantage is only realized if the circuit design requires inductance precision beyond the main part's tolerance specification.

Q: Can the substitute part operate at the extended temperature range (-40°C to 105°C)?

A: Yes. The substitute part is rated for -40°C to 105°C, compared to the main part's -40°C to 85°C. The extended upper temperature limit provides improved performance margin in high-temperature environments. However, the application's actual operating temperature must remain within this range for reliable operation.