1206HS-331EGTS Equivalent & Substitute Parts

Part Overview

The 1206HS-331EGTS is a 330 nH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components. This surface mount component is rated for 590 mA continuous current with a DC resistance of 620 mOhm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

1206HS-331EGTS

Delta Electronics/ComponentsIn Stock: 7751206HS-331EGTS Datasheet

Current PartRFQ

LQH31MNR33K03L

Murata ElectronicsIn Stock: 748LQH31MNR33K03L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1206HS-331EGTS is evaluated based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 330 nH (exact match required)
• Package / Case: 1206 (3216 Metric) surface mount form factor
• Shielding configuration: Unshielded
• Core type: Drum core wirewound construction

Secondary Compatibility Factors:

• Current rating must meet or exceed application requirements
• DC resistance impact on circuit performance
• Operating temperature range coverage
• Tolerance specification suitability
• RoHS and regulatory compliance alignment

The LQH31MNR33K03L from Murata Electronics matches the primary criteria of inductance value, package form factor, and unshielded drum core construction. However, differences exist in current rating, DC resistance, core material, and operating temperature range that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The LQH31MNR33K03L qualifies as a functional equivalent for the 1206HS-331EGTS based on matching inductance value, identical package form factor, and equivalent unshielded drum core construction. Both components maintain ROHS3 compliance and operate within overlapping temperature ranges.

Critical Considerations for Selection:

The substitute part exhibits a reduced current rating of 230 mA compared to the original 590 mA specification. Applications requiring the full 590 mA current capacity cannot use this substitute without thermal and performance degradation analysis.

The LQH31MNR33K03L operates to a maximum temperature of 85°C, whereas the original part supports 125°C. Applications requiring the extended upper temperature range must account for this limitation.

The substitute part features ferrite core material versus the ceramic core of the original, resulting in different frequency response characteristics. The self-resonant frequency is 250 MHz for the substitute versus 650 MHz for the original part.

The tolerance specification widens from ±2% to ±10% in the substitute part, affecting inductance value precision in critical applications.

Both components are currently available with active product status and full regulatory compliance, supporting long-term procurement viability.

Frequently Asked Questions (FAQ)

Q: Can the LQH31MNR33K03L directly replace the 1206HS-331EGTS in all applications?

A: Direct replacement is limited by current rating and operating temperature specifications. The substitute part is rated for 230 mA maximum continuous current versus 590 mA for the original. Applications operating at or near the original 590 mA specification require alternative solutions. The substitute part's maximum operating temperature of 85°C is lower than the original 125°C rating.

Q: What is the impact of the different core materials on circuit performance?

A: The original part uses ceramic core material while the substitute uses ferrite core material. This affects frequency response, with the original part exhibiting a self-resonant frequency of 650 MHz compared to 250 MHz for the substitute. Applications sensitive to high-frequency behavior must evaluate this difference.

Q: Are both parts physically compatible with the same PCB footprint?

A: Both components use the 1206 (3216 Metric) surface mount package. However, physical dimensions differ slightly. The original part measures 0.140" L x 0.085" W with 0.060" maximum seated height, while the substitute measures 0.126" L x 0.063" W with 0.079" maximum seated height. PCB layout verification is required to confirm mechanical fit.

Q: How does the tolerance difference affect circuit design?

A: The original part specifies ±2% inductance tolerance while the substitute specifies ±10%. In circuits where inductance precision is critical for frequency response, filtering, or impedance matching, the wider tolerance of the substitute may introduce unacceptable performance variation.

Q: What is the significance of the different DC resistance values?

A: The original part has 620 mOhm DC resistance while the substitute has 450 mOhm. Lower DC resistance in the substitute reduces resistive losses and heat generation, which may be beneficial in some applications. However, this parameter difference must be evaluated within the context of the reduced current rating.

Q: Are regulatory and compliance certifications equivalent?

A: Both parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification. Both carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory compliance is equivalent between the two components.