1210HS-221EMFS Equivalent & Substitute Parts

Part Overview

The 1210HS-221EMFS is a 220 nH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components. This surface mount component is rated for 600 mA continuous current with 150 mOhm DC resistance 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 within target applications. Substitute parts must preserve the core inductance value, package form factor, and electrical performance characteristics required for circuit operation.

Substiute Parts

1210HS-221EMFS

Delta Electronics/ComponentsIn Stock: 8251210HS-221EMFS Datasheet

Current PartRFQ

NLCV32T-R22M-EFR

TDK CorporationIn Stock: 2486NLCV32T-R22M-EFR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1210HS-221EMFS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Inductance value: 220 nH (within ±20% tolerance specification)
• Package form factor: 1210 (3225 Metric) surface mount
• Core type: Ferrite drum core, wirewound construction
• Shielding configuration: Unshielded

Compatibility Criteria:

• Current rating must equal or exceed 600 mA minimum requirement
• DC resistance must not exceed the application's acceptable loss budget
• Operating temperature range must encompass or extend the -40°C to 85°C specification
• RoHS3 compliance and MSL 1 rating ensure regulatory and handling compatibility

The substitute part NLCV32T-R22M-EFR from TDK Corporation satisfies all mandatory matching criteria and provides enhanced electrical performance characteristics, including higher current capacity and lower DC resistance, while maintaining package compatibility and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The NLCV32T-R22M-EFR represents a direct functional substitute for the obsolete 1210HS-221EMFS. Both components share identical inductance specifications, package geometry, and core construction, ensuring mechanical and electrical compatibility within existing PCB layouts and circuit designs.

Advantages of NLCV32T-R22M-EFR:

• Active product status ensures long-term availability and supply chain continuity
• Current rating of 2.4 A provides 4× margin above the original 600 mA specification, enabling operation in higher-power applications or with improved thermal headroom
• DC resistance of 32.4 mOhm maximum represents a 78% reduction compared to the original 150 mOhm specification, resulting in lower power dissipation and improved efficiency
• Extended operating temperature range to 105°C accommodates thermal environments beyond the original specification
• ROHS3 compliance and MSL 1 rating maintain regulatory and manufacturing process compatibility

Considerations:

• The substitute part exhibits lower Q factor (10 versus 35 at 25.2 MHz) and reduced self-resonant frequency (400 MHz versus 500 MHz), which may affect high-frequency performance in narrowband or resonant circuit applications
• Physical dimensions differ slightly (3.20 mm × 2.50 mm versus 3.50 mm × 2.80 mm), though both conform to the 1210 package standard and maintain identical height (2.40 mm maximum)

Frequently Asked Questions (FAQ)

Q: Can the NLCV32T-R22M-EFR be used as a direct replacement for the 1210HS-221EMFS without circuit modification?

A: Yes. Both components maintain identical inductance values (220 nH ±20%), package form factor (1210 surface mount), and core construction (ferrite drum core, unshielded). The substitute part is mechanically and electrically compatible with existing PCB designs. However, circuit performance at frequencies above 400 MHz may differ due to variations in self-resonant frequency and Q factor.

Q: What is the primary reason for substituting the 1210HS-221EMFS?

A: The 1210HS-221EMFS is classified as obsolete. The NLCV32T-R22M-EFR is an active product from TDK Corporation, ensuring continued availability, manufacturing support, and supply chain reliability for new designs and production runs.

Q: Are there any thermal or current-handling differences between these components?

A: The NLCV32T-R22M-EFR is rated for 2.4 A continuous current, compared to 600 mA for the original part. Additionally, the substitute exhibits significantly lower DC resistance (32.4 mOhm maximum versus 150 mOhm), resulting in reduced power dissipation and improved thermal performance. The extended operating temperature range (-40°C to 105°C) provides additional thermal margin.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the 1210HS-221EMFS and NLCV32T-R22M-EFR are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity level). Regulatory and manufacturing process compatibility is maintained.

Q: What are the physical dimension differences, and do they affect PCB layout?

A: The substitute part measures 3.20 mm × 2.50 mm compared to 3.50 mm × 2.80 mm for the original. Both conform to the 1210 (3225 Metric) package standard with identical maximum seated height (2.40 mm). The dimensional reduction in the substitute part may provide minor PCB layout benefits but does not require design changes for standard 1210 footprints.

Q: How do the frequency characteristics differ between these inductors?

A: The original 1210HS-221EMFS exhibits a Q factor of 35 at 25.2 MHz and self-resonant frequency of 500 MHz. The NLCV32T-R22M-EFR has a Q factor of 10 at 25.2 MHz and self-resonant frequency of 400 MHz. Applications requiring high Q or operation near 500 MHz may experience performance variations. Standard RF and power supply filtering applications typically operate well within the substitute part's frequency characteristics.