1210HS-222EMFS Equivalent & Substitute Parts

Part Overview

The 1210HS-222EMFS is a 2.2 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components in the 1210 (3225 Metric) surface mount package. This component is rated for 370 mA continuous current with 800 mOhm DC resistance and operates across the temperature range of -40°C to 85°C.

The 1210HS-222EMFS has reached obsolete product status. Identifying equivalent and 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-222EMFS

Delta Electronics/ComponentsIn Stock: 8901210HS-222EMFS Datasheet

Current PartRFQ

744032002

Würth ElektronikIn Stock: 3805744032002 Datasheet

DirectRFQ

BRL3225T2R2M

Taiyo YudenIn Stock: 17499BRL3225T2R2M Datasheet

DirectRFQ

CBC3225T2R2MRV

Taiyo YudenIn Stock: 937CBC3225T2R2MRV Datasheet

DirectRFQ

NLCV32T-2R2M-EF

TDK CorporationIn Stock: 1415NLCV32T-2R2M-EF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1210HS-222EMFS is determined by the following critical parameters:

Mandatory Matching Criteria:

• Inductance value: 2.2 µH
• Inductance tolerance: ±20%
• Core type: Ferrite, unshielded drum core wirewound
• Package / Case: 1210 (3225 Metric)
• Mounting type: Surface Mount
• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Current Rating: Substitute parts must equal or exceed 370 mA
• DC Resistance (DCR): Substitute parts may vary; lower DCR values indicate improved performance characteristics
• Operating Temperature Range: Substitute parts must support minimum -40°C to 85°C; extended ranges are acceptable
• Frequency characteristics: Variations in self-resonant frequency and Q factor are acceptable provided core material and inductance remain constant

All four substitute parts listed meet the mandatory matching criteria and represent valid alternatives for the obsolete 1210HS-222EMFS.

Parameter Comparison

Engineering Selection Recommendations

744032002 (Würth Elektronik WE-LQ Series)

This part is recommended as the primary substitute. The 744032002 is in Active product status, ensuring long-term availability and supply chain stability. It provides 620 mA current rating, exceeding the original 370 mA requirement. The DC resistance of 150 mOhm Max is significantly lower than the original 800 mOhm, resulting in reduced power dissipation. Extended operating temperature range to 125°C provides additional thermal margin. ROHS3 compliance and MSL 1 rating match the original specification.

NLCV32T-2R2M-EF (TDK Corporation NLCV-EF Series)

This part is recommended as a secondary substitute. The NLCV32T-2R2M-EF is in Active product status with confirmed long-term availability. It provides 770 mA current rating, well above the original 370 mA specification. The DC resistance of 169 mOhm Max is substantially lower than the original 800 mOhm. Operating temperature range extends to 105°C. ROHS3 compliance and MSL 1 rating are maintained. Inductance frequency test at 7.96 MHz matches the original part's test frequency, providing direct performance correlation.

BRL3225T2R2M (Taiyo Yuden BR, L Type Series)

This part provides the highest current rating at 1.6 A and the lowest DC resistance at 78 mOhm Max. However, product status is listed as Not For New Designs, which may limit future availability and support. This part is suitable for existing inventory replacement only when other options are unavailable.

CBC3225T2R2MRV (Taiyo Yuden CB, C Type Series)

This part provides 930 mA current rating and 104 mOhm Max DC resistance. Product status is listed as Not For New Designs, limiting its suitability for new applications. This part is suitable for existing inventory replacement only when other options are unavailable.

Frequently Asked Questions (FAQ)

Q: Can the 744032002 directly replace the 1210HS-222EMFS in my circuit?

A: Yes. Both parts share identical inductance (2.2 µH), tolerance (±20%), core material (ferrite), shielding (unshielded), and package format (1210 / 3225 Metric). The 744032002 exceeds the current rating requirement and provides lower DC resistance, making it a direct functional replacement. Verify that your PCB layout and thermal design accommodate the lower DCR value.

Q: What is the difference between the substitute parts in terms of current handling?

A: The original 1210HS-222EMFS is rated for 370 mA. The substitute parts offer higher current ratings: 744032002 (620 mA), NLCV32T-2R2M-EF (770 mA), CBC3225T2R2MRV (930 mA), and BRL3225T2R2M (1.6 A). All substitute parts exceed the original current requirement, providing design margin and reduced thermal stress.

Q: Why do the substitute parts have lower DC resistance values?

A: DC resistance variation is a normal characteristic of inductor manufacturing across different suppliers and series. Lower DCR values indicate improved efficiency and reduced power dissipation in the inductor itself. This is a beneficial characteristic that does not affect substitution eligibility.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts use the 1210 (3225 Metric) surface mount package. Physical dimensions are consistent across all parts, with minor variations in height (ranging from 1.70 mm to 2.70 mm seated height). Verify PCB clearance if height variation exceeds your design tolerance.

Q: Which substitute part should I choose for a new design?

A: For new designs, select either the 744032002 (Würth Elektronik) or NLCV32T-2R2M-EF (TDK Corporation), as both are in Active product status. The 744032002 offers the lowest DC resistance (150 mOhm Max) and highest operating temperature range (125°C). The NLCV32T-2R2M-EF provides good performance with 169 mOhm Max DCR and matches the original part's test frequency at 7.96 MHz.

Q: What does "Not For New Designs" mean for the Taiyo Yuden parts?

A: "Not For New Designs" indicates that the manufacturer is not actively promoting these parts for new applications and may discontinue them in the future. These parts are suitable for replacement in existing designs or inventory management but should not be selected for new product development.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory compliance of the original 1210HS-222EMFS.

Q: Can I use the BRL3225T2R2M or CBC3225T2R2MRV for new designs?

A: Both parts are technically compatible with the original specification. However, both are marked as "Not For New Designs," indicating limited manufacturer support for future availability. Use these parts only for replacement in existing production runs or when primary substitutes are unavailable.