1210HS-681EMFS Equivalent & Substitute Parts Reference

Part Overview

The 1210HS-681EMFS is a 680 nH 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 470 mA with a DC resistance of 250 mOhm and is rated for -40°C to 85°C operating temperature range.

The 1210HS-681EMFS has reached 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 inductor specification.

Substiute Parts

1210HS-681EMFS

Delta Electronics/ComponentsIn Stock: 10221210HS-681EMFS Datasheet

Current PartRFQ

NLCV32T-R68M-EFR

TDK CorporationIn Stock: 2308NLCV32T-R68M-EFR Datasheet

DirectRFQ

NLCV32T-R68M-EFRD

TDK CorporationIn Stock: 1230NLCV32T-R68M-EFRD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1210HS-681EMFS are qualified based on the following critical parameters:

Matching Parameters (Required for Substitution):

• Inductance value: 680 nH
• Inductance tolerance: ±20%
• Package / Case: 1210 (3225 Metric)
• Core type: Ferrite drum core, unshielded
• Mounting type: Surface mount
• RoHS3 compliance
• Moisture sensitivity level: 1

Allowable Parameter Variations:

• Current rating: Substitute parts must meet or exceed the 470 mA requirement of the original part
• DC resistance: Substitute parts may have lower DCR values, which represent improved electrical performance
• Operating temperature range: Substitute parts may have extended temperature ranges
• Product status: Active status substitutes are preferred over obsolete parts

The two TDK Corporation parts listed (NLCV32T-R68M-EFR and NLCV32T-R68M-EFRD) meet all matching parameters and provide superior current handling capability (1.9 A) and lower DC resistance (54 mOhm max) compared to the original part.

Parameter Comparison

Engineering Selection Recommendations

NLCV32T-R68M-EFR Selection Criteria:

The NLCV32T-R68M-EFR is an active product from TDK Corporation with ROHS3 compliance and unlimited moisture sensitivity rating. This part provides 4 times the current rating (1.9 A versus 470 mA) and significantly lower DC resistance (54 mOhm max versus 250 mOhm). The extended operating temperature range (-40°C to 105°C) accommodates broader thermal environments. This substitute is suitable for applications where the original 1210HS-681EMFS specifications are met or exceeded.

NLCV32T-R68M-EFRD Selection Criteria:

The NLCV32T-R68M-EFRD is an active product from TDK Corporation with AEC-Q200 automotive qualification rating. This part meets all electrical and mechanical requirements of the 1210HS-681EMFS while providing superior current handling and lower DC resistance. The extended operating temperature range (-40°C to 125°C) and automotive-grade certification make this substitute appropriate for automotive and high-reliability applications. ROHS3 compliance and unlimited moisture sensitivity rating are maintained.

Both substitute parts are available in active production status with established supply chains, addressing the obsolescence of the original 1210HS-681EMFS component.

Frequently Asked Questions (FAQ)

Q: Can NLCV32T-R68M-EFR and NLCV32T-R68M-EFRD be used interchangeably with 1210HS-681EMFS?

A: Both TDK substitutes meet the core electrical and mechanical specifications of the 1210HS-681EMFS. The primary difference is that NLCV32T-R68M-EFRD includes AEC-Q200 automotive qualification and operates to 125°C, while NLCV32T-R68M-EFR operates to 105°C. Selection depends on application requirements.

Q: What are the physical dimension differences between the original and substitute parts?

A: The 1210HS-681EMFS measures 0.138" L x 0.110" W (3.50mm x 2.80mm), while both TDK substitutes measure 0.126" L x 0.098" W (3.20mm x 2.50mm). Both maintain the same maximum seated height of 0.094" (2.40mm). The smaller footprint of the TDK parts may provide PCB layout advantages.

Q: Why is the DC resistance of the substitute parts significantly lower?

A: The TDK NLCV32T series inductors feature improved winding design and materials that reduce DC resistance to 54 mOhm max compared to the original 250 mOhm. This represents enhanced electrical efficiency and lower power dissipation in the same package size.

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

A: Both NLCV32T-R68M-EFR and NLCV32T-R68M-EFRD are supplied in Tape & Reel (TR) packaging. The original 1210HS-681EMFS packaging format is not specified in the available data.

Q: What is the significance of the AEC-Q200 rating on NLCV32T-R68M-EFRD?

A: AEC-Q200 is an automotive electronics qualification standard. The NLCV32T-R68M-EFRD meets this qualification, making it suitable for automotive applications requiring component reliability and quality assurance standards beyond general industrial use.

Q: Can the higher current rating of the substitutes cause any issues in the original circuit?

A: No. The substitute parts are rated for higher current (1.9 A) than the original specification (470 mA). Higher current ratings indicate greater capability and do not create compatibility issues when used in circuits designed for the lower current rating.

Q: What compliance certifications apply to all three parts?

A: All three parts (original and both substitutes) are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. All maintain moisture sensitivity level 1 (unlimited).