ETQ-P3LR33XFN Equivalent & Substitute Parts

Part Overview

The ETQ-P3LR33XFN is a 330 nH shielded inductor manufactured by Panasonic Electronic Components, rated for 17 A continuous current with 2 mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part is packaged in 2-SMD, J-Lead surface mount configuration with unlimited moisture sensitivity rating.

Substiute Parts

ETQ-P3LR33XFN

Panasonic Electronic ComponentsIn Stock: 1086ETQ-P3LR33XFN Datasheet

Current PartRFQ

PG0426.331NLT

Pulse ElectronicsIn Stock: 1784PG0426.331NLT Datasheet

SimilarRFQ

SRP7028A-R33M

Bourns Inc.In Stock: 3238SRP7028A-R33M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ETQ-P3LR33XFN are qualified based on the following electrical and mechanical parameters:

• Inductance value: 330 nH (matching specification)
• Inductance tolerance: ±20% (matching specification)
• Shielding: Shielded construction required
• Mounting type: Surface mount configuration
• Current rating: Equal to or greater than 17 A
• DC resistance: Acceptable within design margin (original 2 mOhm; substitutes up to 3.9 mOhm maximum)
• Inductance test frequency: 100 kHz (matching specification)
• Moisture sensitivity: MSL 1 (Unlimited) or equivalent

The two identified substitutes meet these criteria while offering active product status and improved availability compared to the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing status, providing superior long-term availability compared to the obsolete ETQ-P3LR33XFN.

PG0426.331NLT (Pulse Electronics) offers the lowest DCR increase at 3.4 mOhm maximum and maintains a -40°C to 130°C operating temperature range. This part is ROHS3 compliant and REACH unaffected.

SRP7028A-R33M (Bourns Inc.) provides the widest operating temperature range (-40°C to 150°C) and includes AEC-Q200 automotive qualification. The part features a self-resonant frequency of 140 MHz and Q factor of 10 at 100 kHz. DCR is specified at 3.9 mOhm maximum. This part is ROHS3 compliant and REACH unaffected.

Both substitutes exceed the original 17 A current rating at 20 A, providing design margin. Selection between these two parts depends on application-specific requirements for operating temperature range and automotive qualification status.

Frequently Asked Questions (FAQ)

Q: Can PG0426.331NLT or SRP7028A-R33M be used as direct replacements for ETQ-P3LR33XFN?

A: Both parts meet the core electrical specifications: 330 nH inductance at ±20% tolerance, shielded construction, surface mount configuration, and 100 kHz test frequency. Both exceed the 17 A current rating and maintain MSL 1 moisture sensitivity. Physical dimensions differ slightly; PCB layout verification is required.

Q: What is the impact of increased DC resistance in the substitute parts?

A: The ETQ-P3LR33XFN specifies 2 mOhm DCR. PG0426.331NLT increases this to 3.4 mOhm maximum, and SRP7028A-R33M to 3.9 mOhm maximum. The increase in resistive losses must be evaluated against circuit power dissipation requirements and thermal management capabilities.

Q: Are there temperature range considerations for substitution?

A: The original part does not specify an operating temperature range. PG0426.331NLT operates from -40°C to 130°C, while SRP7028A-R33M operates from -40°C to 150°C. Applications requiring operation above 130°C should use SRP7028A-R33M.

Q: What compliance certifications apply to the substitute parts?

A: Both PG0426.331NLT and SRP7028A-R33M are ROHS3 compliant and REACH unaffected. SRP7028A-R33M additionally carries AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications.

Q: Do package dimensions require PCB layout changes?

A: The ETQ-P3LR33XFN measures 7.50mm L × 6.50mm W × 3.00mm H. PG0426.331NLT measures 7.50mm L × 7.00mm W × 3.20mm H. SRP7028A-R33M measures 7.30mm L × 6.60mm W × 3.00mm H. Verify footprint compatibility with existing PCB designs before implementation.