0805-331J Equivalent & Substitute Parts Reference

Part Overview

The API Delevan Inc. 0805-331J is a 330 nH unshielded drum core wirewound inductor rated for 310 mA with a maximum DC resistance of 1.4Ohm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across the temperature range of -40°C to 125°C and is mounted as a surface mount device in a nonstandard 0.090" L x 0.068" W package format.

Substiute Parts

0805-331J

API Delevan Inc.In Stock: 7430805-331J Datasheet

Current PartRFQ

CW201212-R33J

Bourns Inc.In Stock: 5863CW201212-R33J Datasheet

DirectRFQ

LQW2BASR33J00L

Murata ElectronicsIn Stock: 8307LQW2BASR33J00L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0805-331J are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Inductance value: 330 nH (exact match required)
• Inductance tolerance: ±5% (exact match required)
• Current rating: minimum 310 mA or higher
• DC resistance: 1.4Ohm or lower
• Operating temperature range: must encompass -40°C to 125°C minimum
• Mounting type: Surface Mount (required)
• Shielding configuration: Unshielded (required)

Two substitute parts meet these criteria:

Direct Substitute: Bourns Inc. CW201212-R33J — matches inductance, tolerance, and core specifications with equivalent electrical performance in a standardized 0805 (2012 Metric) package.

Similar Substitute: Murata Electronics LQW2BASR33J00L — matches inductance, tolerance, current rating, and DC resistance with identical electrical characteristics and extended temperature range in a standardized 0805 (2015 Metric) package.

Parameter Comparison

Engineering Selection Recommendations

LQW2BASR33J00L (Murata Electronics) is the primary recommended substitute. This part provides exact electrical equivalence to the 0805-331J with identical current rating (310 mA) and DC resistance (1.4Ohm Max). The part is active in production, ROHS3 compliant, and offers an extended operating temperature range (-55°C to 125°C). The standardized 0805 (2015 Metric) package ensures compatibility with modern PCB assembly processes.

CW201212-R33J (Bourns Inc.) is an alternative substitute suitable for applications where current rating requirements do not exceed 200 mA. This part maintains the same inductance and tolerance specifications with ROHS3 compliance and active product status. The current rating of 200 mA is lower than the original specification, requiring circuit-level evaluation. The standardized 0805 (2012 Metric) package is widely supported in manufacturing environments.

Both substitute parts are ROHS3 compliant and active products, providing supply chain stability compared to the obsolete 0805-331J.

Frequently Asked Questions (FAQ)

Q: Can CW201212-R33J be used in place of 0805-331J if the circuit only requires 200 mA?

A: Yes, provided the application current demand does not exceed 200 mA. The CW201212-R33J is rated for 200 mA maximum, which is lower than the original 310 mA specification. Circuit analysis must confirm that operating current remains within this limit.

Q: What is the difference between the package formats of these substitutes?

A: The 0805-331J uses a nonstandard package (0.090" L x 0.068" W). The CW201212-R33J uses the standardized 0805 (2012 Metric) format (0.083" L x 0.059" W), and the LQW2BASR33J00L uses the 0805 (2015 Metric) format (0.082" L x 0.060" W). Both standardized packages are compatible with modern PCB assembly equipment, though PCB footprint verification is required.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both CW201212-R33J and LQW2BASR33J00L are ROHS3 compliant. The original 0805-331J is RoHS non-compliant. If RoHS compliance is a design requirement, either substitute part satisfies this criterion.

Q: What is the significance of the different core materials?

A: The 0805-331J and CW201212-R33J use ceramic core materials, while the LQW2BASR33J00L uses an air core. All three parts achieve the same 330 nH inductance specification with ±5% tolerance. The core material difference does not affect electrical equivalence for this application.

Q: Which substitute part has the better frequency characteristics?

A: The CW201212-R33J has the highest self-resonant frequency at 800MHz, compared to 650MHz for LQW2BASR33J00L and 600MHz for the original 0805-331J. For applications operating near resonant frequencies, the CW201212-R33J provides extended frequency margin. However, both substitutes meet the original specification requirements.