ELJ-PA330KF Equivalent & Substitute Parts

Part Overview

The ELJ-PA330KF is a 33 µH unshielded drum core wirewound inductor manufactured by Panasonic Electronic Components, rated for 155 mA with a maximum DC resistance of 1.65Ohm in a 1210 (3225 Metric) surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

ELJ-PA330KF

Panasonic Electronic ComponentsIn Stock: 833ELJ-PA330KF Datasheet

Current PartRFQ

NLCV32T-330K-PF

TDK CorporationIn Stock: 16994NLCV32T-330K-PF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELJ-PA330KF is determined by the following critical parameters:

• Inductance Value: Must be 33 µH with ±10% tolerance
• Package / Case: Must be 1210 (3225 Metric) surface mount
• Core Type: Drum core, wirewound, ferrite material
• Shielding: Unshielded configuration
• Current Rating: Must meet or exceed 155 mA minimum requirement
• DC Resistance: Lower or equal DCR values are acceptable for improved performance
• Operating Temperature: Must support the required thermal range
• Frequency Characteristics: Q factor and self-resonant frequency must be compatible with circuit application

The NLCV32T-330K-PF from TDK Corporation meets all substitution criteria, offering improved electrical performance characteristics while maintaining identical package geometry and inductance specifications.

Parameter Comparison

Engineering Selection Recommendations

The NLCV32T-330K-PF is a direct functional substitute for the ELJ-PA330KF. The TDK component provides superior electrical performance with a 55% increase in current rating (240 mA vs. 155 mA) and reduced DC resistance (1.43Ohm vs. 1.65Ohm), resulting in lower power dissipation. The extended operating temperature range (-40°C ~ 105°C) accommodates broader environmental specifications compared to the original part (-20°C ~ 85°C).

Both components share identical package geometry, inductance value, tolerance, and frequency test specifications, ensuring direct PCB compatibility without layout modifications. The NLCV32T-330K-PF is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. While the TDK part is classified as "Not For New Designs," it remains available in production quantities and is suitable for legacy system support and design continuation.

Frequently Asked Questions (FAQ)

Q: Can the NLCV32T-330K-PF be used as a direct replacement for the ELJ-PA330KF?

A: Yes. Both components are 33 µH inductors in 1210 (3225 Metric) surface mount packages with identical physical dimensions and electrical specifications at the test frequency. The TDK part offers improved current handling and lower DC resistance.

Q: What are the key differences between these two inductors?

A: The primary differences are current rating (240 mA vs. 155 mA), DC resistance (1.43Ohm vs. 1.65Ohm), self-resonant frequency (17MHz vs. 12MHz), and operating temperature range (-40°C ~ 105°C vs. -20°C ~ 85°C). All other critical parameters are identical.

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both inductors use the same 1210 (3225 Metric) package with identical footprint dimensions (0.126" L x 0.098" W, 3.20mm x 2.50mm) and maximum seated height (0.094", 2.40mm). No PCB modifications are required.

Q: What is the significance of the product status classifications?

A: The ELJ-PA330KF is marked obsolete, indicating Panasonic has discontinued production. The NLCV32T-330K-PF is marked "Not For New Designs," indicating TDK recommends it only for legacy applications. Both statuses reflect manufacturer lifecycle decisions and do not affect functional compatibility.

Q: Are both parts RoHS compliant?

A: The NLCV32T-330K-PF is explicitly ROHS3 compliant. The ELJ-PA330KF RoHS status is not specified in the provided data. Both components have MSL rating of 1 (Unlimited) and identical ECCN and HTSUS classifications.