S1210-331K Equivalent & Substitute Parts

Part Overview

The S1210-331K is a fixed shielded inductor manufactured by API Delevan Inc., designed for surface mount applications in the 1210 (3225 Metric) package. This component delivers 330 nH inductance with a maximum DC resistance of 350 mOhm and supports a current rating of 740 mA. The part is classified as Active product status and operates across the temperature range of -55°C to 125°C.

Substitute parts become necessary when the original part number reaches end-of-life status, inventory constraints occur, or when design requirements permit selection from functionally equivalent alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

S1210-331K

API Delevan Inc.In Stock: 5802S1210-331K Datasheet

Current PartRFQ

S1210R-331K

API Delevan Inc.In Stock: 25534S1210R-331K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S1210-331K is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Inductance value (330 nH), inductance tolerance (±10%), current rating (740 mA), DC resistance maximum (350 mOhm), Q factor at 25 MHz (40), and self-resonant frequency (255 MHz) must remain identical.

Mechanical Parameters: Package designation (1210 / 3225 Metric), mounting type (Surface Mount), physical dimensions (0.128" L x 0.095" W / 3.25 mm x 2.42 mm), and maximum seated height (0.101" / 2.57 mm) must match exactly.

Environmental Parameters: Operating temperature range (-55°C to 125°C), shielding configuration (Shielded), and core material (Iron) must be preserved.

Packaging: Tape & Reel (TR) format applies to both the main part and substitute.

The S1210R-331K qualifies as a direct substitute because all electrical, mechanical, and environmental parameters are identical to the S1210-331K.

Parameter Comparison

Engineering Selection Recommendations

Both the S1210-331K and S1210R-331K are classified as Active product status, indicating ongoing manufacturer support and availability. The primary distinction between these parts lies in regulatory compliance certification.

The S1210-331K carries RoHS non-compliant status, while the S1210R-331K is ROHS3 Compliant. Both parts maintain REACH Unaffected status and share identical ECCN (EAR99) and HTSUS (8504.50.8000) classifications.

For applications subject to RoHS3 regulatory requirements, the S1210R-331K is the appropriate selection. For applications without RoHS3 mandates, either part satisfies the electrical and mechanical requirements identically. The S1210R-331K currently maintains higher inventory availability (25,521 pieces) compared to the S1210-331K (5,700 pieces).

Frequently Asked Questions (FAQ)

Q: Can the S1210R-331K replace the S1210-331K in existing designs?

A: Yes. The S1210R-331K is electrically and mechanically identical to the S1210-331K across all specified parameters, including inductance, current rating, DC resistance, frequency characteristics, package dimensions, and operating temperature range. Both parts are surface mount components in the 1210 (3225 Metric) package with shielded iron cores.

Q: What is the difference between S1210-331K and S1210R-331K?

A: The primary difference is RoHS compliance status. The S1210-331K is RoHS non-compliant, while the S1210R-331K is ROHS3 Compliant. All electrical specifications, mechanical dimensions, and performance characteristics are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical dimensions of 0.128" L x 0.095" W (3.25 mm x 2.42 mm) with a maximum seated height of 0.101" (2.57 mm). They are both packaged in the 1210 (3225 Metric) form factor and are compatible with identical PCB footprints.

Q: Do these parts have the same packaging format?

A: Yes. Both the S1210-331K and S1210R-331K are supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.

Q: Which part should I select for new designs?

A: Selection depends on regulatory requirements. For designs subject to RoHS3 compliance mandates, specify the S1210R-331K. For applications without RoHS3 requirements, either part meets the electrical and mechanical specifications. The S1210R-331K offers the advantage of higher current inventory availability.