IR02EV330K Equivalent & Substitute Parts

Part Overview

The IR02EV330K is a 33 µH unshielded inductor manufactured by Vishay Dale, rated for 130 mA maximum current with a DC resistance of 3.4Ohm maximum. This through-hole axial component operates across a temperature range of -55°C to 105°C and is ROHS3 compliant. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

IR02EV330K

Vishay DaleIn Stock: 764IR02EV330K Datasheet

Current PartRFQ

1025R-56K

DelevanIn Stock: 18161025R-56K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR02EV330K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 33 µH with ±10% tolerance
• Current Rating: 130 mA maximum
• DC Resistance: 3.4Ohm maximum
• Core Material: Ferrite
• Shielding Configuration: Unshielded
• Mounting Type: Through Hole Axial
• Operating Temperature Range: -55°C to 105°C
• Quality Factor: 45 @ 2.5MHz
• Self Resonant Frequency: 24MHz
• Regulatory Compliance: ROHS3 Compliant

The substitute part 1025R-56K from Delevan meets all specified electrical and mechanical parameters, with the distinction of being an active product with molded construction versus the obsolete Vishay Dale original.

Parameter Comparison

Engineering Selection Recommendations

The 1025R-56K from Delevan is a direct functional equivalent to the obsolete IR02EV330K. Both components share identical electrical specifications across inductance, current rating, DC resistance, quality factor, and self-resonant frequency. Both maintain ROHS3 compliance and operate within the same temperature range.

The primary distinction is product status: the IR02EV330K is obsolete, while the 1025R-56K is an active product with established supply chain availability. The Delevan part features molded construction, which provides equivalent performance within the specified parameters. Physical dimensions differ slightly (0.095" Dia x 0.250" L for the 1025R-56K versus 0.120" Dia x 0.260" L for the IR02EV330K), but both maintain through-hole axial mounting compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 1025R-56K replace the IR02EV330K in existing designs?

A: Yes. Both components meet identical electrical specifications: 33 µH inductance, 130 mA current rating, 3.4Ohm maximum DC resistance, 45 Q @ 2.5MHz, and 24MHz self-resonant frequency. Both are ROHS3 compliant and operate across -55°C to 105°C. Physical dimensions are similar, with minor variations that do not affect through-hole axial mounting.

Q: What is the difference between molded and standard construction?

A: The 1025R-56K uses molded construction while the IR02EV330K uses standard construction. Both achieve the same electrical performance within the specified parameters. Molded construction provides consistent dimensional tolerances and environmental protection.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and share the same ECCN (EAR99) and HTSUS (8504.50.8000) classifications. Both are not subject to moisture sensitivity level requirements.

Q: What is the availability status of these parts?

A: The IR02EV330K is obsolete with limited remaining inventory. The 1025R-56K is an active product with established supply chain availability, making it the recommended selection for new procurement.

Q: Do the physical dimension differences affect circuit board layout?

A: The 1025R-56K (0.095" Dia x 0.250" L) is slightly smaller than the IR02EV330K (0.120" Dia x 0.260" L). Both maintain through-hole axial mounting compatibility. Verify PCB hole spacing and component clearance for your specific layout before implementation.