IM02EB8R2K Equivalent & Substitute Parts

Part Overview

The IM02EB8R2K is an 8.2 µH unshielded molded inductor manufactured by Vishay Dale, rated for 155 mA maximum current with 2.7Ohm DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors. The part is currently obsolete, making identification of functionally equivalent alternatives essential for design continuity and procurement planning.

Substiute Parts

IM02EB8R2K

Vishay DaleIn Stock: 788IM02EB8R2K Datasheet

Current PartRFQ

1025R-42K

API Delevan Inc.In Stock: 15051025R-42K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IM02EB8R2K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 8.2 µH (±10% tolerance maintained)
• Current Rating: Minimum 155 mA; higher ratings acceptable
• DC Resistance: 2.7Ohm Max (no deviation permitted)
• Core Material: Iron (unshielded molded construction)
• Mounting Configuration: Through-hole axial package
• Operating Temperature: -55°C ~ 105°C minimum range
• Frequency Characteristics: Q @ 7.9MHz and 55MHz self-resonant frequency

The substitute part 1025R-42K meets all substitution criteria with identical electrical specifications and enhanced current rating capability (160 mA vs. 155 mA), providing direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The 1025R-42K from API Delevan Inc. is the direct equivalent for the obsolete IM02EB8R2K. Selection is based on the following engineering criteria:

• Electrical Equivalence: All critical parameters match exactly, including inductance, tolerance, DC resistance, and frequency characteristics.
• Current Capacity: The 1025R-42K provides 160 mA rating versus 155 mA, offering improved headroom without circuit modification.
• Compliance: Both parts maintain ROHS3 compliance and identical regulatory certifications (REACH Unaffected, ECCN EAR99, HTSUS 8504.50.8000).
• Product Status: The 1025R-42K is active in production, ensuring long-term availability and supply chain continuity.
• Physical Compatibility: Identical axial through-hole package dimensions (0.095" Dia x 0.250" L) enable direct PCB footprint compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the 1025R-42K be used as a direct replacement for the IM02EB8R2K without circuit modification?

A: Yes. The 1025R-42K is electrically and mechanically equivalent. All critical parameters—inductance, tolerance, DC resistance, frequency response, and operating temperature range—are identical. The physical package dimensions match exactly, enabling direct PCB substitution.

Q: What is the significance of the higher current rating (160 mA vs. 155 mA) on the 1025R-42K?

A: The 160 mA rating on the 1025R-42K provides additional current capacity margin. This does not affect compatibility; it simply means the substitute part can handle slightly higher current loads without saturation, offering improved design margin.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both the IM02EB8R2K and 1025R-42K maintain identical compliance certifications: ROHS3 Compliant, REACH Unaffected, ECCN EAR99, and HTSUS 8504.50.8000.

Q: Why is the IM02EB8R2K obsolete while the 1025R-42K remains active?

A: Product lifecycle decisions are manufacturer-specific. The 1025R-42K remains in active production by API Delevan Inc., ensuring continued availability and supply chain support for this inductance value and specification class.

Q: Will the 1025R-42K fit the same PCB footprint as the IM02EB8R2K?

A: Yes. Both parts share identical axial through-hole package dimensions: 0.095" diameter by 0.250" length (2.41mm x 6.35mm). No PCB layout modification is required.

Q: Are the frequency characteristics identical between the two parts?

A: Yes. Both parts exhibit Q of 55 @ 7.9MHz and a self-resonant frequency of 55MHz, ensuring identical performance in frequency-dependent applications.