S1812-153K Equivalent & Substitute Parts

Part Overview

The S1812-153K is a fixed surface mount inductor manufactured by API Delevan Inc. with an inductance value of 15 µH, rated for 301 mA current, and a maximum DC resistance of 2.2 Ohm. This shielded ferrite core inductor operates across a temperature range of -55°C to 125°C and is housed in a 1812 (4532 Metric) package. The part is currently active in production. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying compliance requirements across different applications and regions.

Substiute Parts

S1812-153K

API Delevan Inc.In Stock: 2363S1812-153K Datasheet

Current PartRFQ

S1812R-153K

API Delevan Inc.In Stock: 1611S1812R-153K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S1812-153K is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Inductance value: 15 µH with ±10% tolerance
• Current rating: 301 mA minimum
• DC resistance: 2.2 Ohm maximum
• Q factor: 50 @ 2.5 MHz
• Self resonant frequency: 18 MHz

Mechanical Parameters:

• Package type: 1812 (4532 Metric)
• Mounting: Surface Mount
• Shielding: Shielded configuration
• Core material: Ferrite

Environmental Parameters:

• Operating temperature range: -55°C to 125°C
• Moisture sensitivity level: 1 (Unlimited)

The substitute part S1812R-153K meets all electrical and mechanical specifications identically to the main part. The primary distinction lies in compliance certifications, where the substitute offers enhanced regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

S1812-153K Selection Criteria: The S1812-153K is suitable for applications where RoHS non-compliance is acceptable or where legacy design specifications explicitly require this variant. Both parts maintain identical electrical performance and mechanical compatibility.

S1812R-153K Selection Criteria: The S1812R-153K is the preferred substitute for new designs and applications requiring ROHS3 compliance. This variant provides equivalent electrical and mechanical performance while meeting enhanced regulatory requirements. Selection of S1812R-153K is recommended for applications subject to RoHS directives or where compliance documentation is required for end-use markets.

Both parts are active products from API Delevan Inc. with confirmed inventory availability. The choice between S1812-153K and S1812R-153K depends solely on compliance requirements and regulatory obligations of the target application.

Frequently Asked Questions (FAQ)

Q: Are S1812-153K and S1812R-153K electrically interchangeable?

A: Yes. Both parts provide identical inductance (15 µH), current rating (301 mA), DC resistance (2.2 Ohm maximum), Q factor (50 @ 2.5 MHz), and self resonant frequency (18 MHz). Electrical performance is equivalent across all specified parameters.

Q: Are these parts mechanically interchangeable?

A: Yes. Both parts use the 1812 (4532 Metric) surface mount package with identical dimensions (0.177" L x 0.126" W / 4.50mm x 3.20mm) and maximum seated height (0.134" / 3.40mm). PCB footprints and assembly processes are identical.

Q: What is the primary difference between these two parts?

A: The primary difference is RoHS compliance status. S1812-153K is RoHS non-compliant, while S1812R-153K is ROHS3 compliant. All other specifications, including electrical performance, mechanical dimensions, and environmental ratings, are identical.

Q: Which part should I specify for a new design?

A: Specify S1812R-153K for new designs unless legacy specifications or specific application requirements mandate the S1812-153K variant. S1812R-153K provides equivalent performance with enhanced regulatory compliance.

Q: Are there any temperature or frequency limitations that differ between these parts?

A: No. Both parts operate across the identical temperature range (-55°C to 125°C) and maintain the same frequency characteristics, including Q factor (50 @ 2.5 MHz) and self resonant frequency (18 MHz).

Q: Can I use these parts in high-frequency applications?

A: Both parts are suitable for applications up to their self resonant frequency of 18 MHz. The Q factor of 50 @ 2.5 MHz indicates performance characteristics at the specified test frequency. Application-specific frequency response should be verified against circuit requirements.

Q: What is the moisture sensitivity level for these inductors?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, which indicates unlimited moisture sensitivity. No special moisture control measures are required during storage or handling.