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IM02EB3R3K Equivalent & Substitute Parts
Part Overview
The IM02EB3R3K is a 3.3 µH unshielded molded inductor manufactured by Vishay Dale, designed for through-hole axial mounting applications. This component is rated for 270 mA maximum current with 850mOhm DC resistance and operates across the temperature range of -55°C to 105°C. The part is currently listed as obsolete, making identification of equivalent substitute components essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 3.3 µH |
| Tolerance | ±10% |
| Current Rating | 270 mA |
| DC Resistance (DCR) | 850mOhm Max |
| Q @ Frequency | 45 @ 7.9MHz |
| Frequency - Self Resonant | 90MHz |
| Operating Temperature Range | -55°C ~ 105°C |
| Mounting Type | Through Hole |
| Package / Case | Axial |
| Size / Dimension | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the IM02EB3R3K is determined by strict equivalence across the following critical parameters:
- Inductance value: 3.3 µH with ±10% tolerance
- DC Resistance: 850mOhm maximum
- Current Rating: minimum 270 mA
- Mounting configuration: Through-hole axial package
- Physical dimensions: 0.095" Dia x 0.250" L (2.41mm x 6.35mm)
- Operating temperature range: -55°C to 105°C
- Frequency characteristics: Q @ 7.9MHz and 90MHz self-resonant frequency
The 1025R-32K from API Delevan Inc. meets all substitution criteria with identical electrical specifications and physical form factor.
Parameter Comparison
| Parameter | IM02EB3R3K (Vishay Dale) | 1025R-32K (API Delevan Inc.) | Compatibility |
|---|---|---|---|
| Inductance | 3.3 µH | 3.3 µH | Identical |
| Tolerance | ±10% | ±10% | Identical |
| Current Rating (Amps) | 270 mA | 285 mA | Compatible (higher rating) |
| DC Resistance (DCR) | 850mOhm Max | 850mOhm Max | Identical |
| Q @ Frequency | 45 @ 7.9MHz | 45 @ 7.9MHz | Identical |
| Frequency - Self Resonant | 90MHz | 90MHz | Identical |
| Operating Temperature Range | -55°C ~ 105°C | -55°C ~ 105°C | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package / Case | Axial | Axial | Identical |
| Size / Dimension | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) | 0.095" Dia x 0.250" L (2.41mm x 6.35mm) | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Obsolete | Active | Substitute is active |
Engineering Selection Recommendations
The 1025R-32K from API Delevan Inc. is a direct functional equivalent to the obsolete IM02EB3R3K. Both components maintain identical electrical performance specifications, physical dimensions, and compliance certifications. The 1025R-32K offers the additional advantage of active product status with confirmed inventory availability, ensuring long-term supply chain reliability. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.
Frequently Asked Questions (FAQ)
Q: Can the 1025R-32K replace the IM02EB3R3K in existing designs?
A: Yes. The 1025R-32K is electrically and mechanically equivalent. Both components share identical inductance values, DC resistance, frequency characteristics, operating temperature ranges, and axial through-hole package dimensions.
Q: What is the difference in current rating between these parts?
A: The IM02EB3R3K is rated for 270 mA, while the 1025R-32K is rated for 285 mA. The higher current rating of the substitute part does not affect compatibility and provides additional design margin.
Q: Are there any compliance differences between the two parts?
A: No. Both components are ROHS3 compliant and REACH unaffected. Regulatory compliance is identical.
Q: Why is the IM02EB3R3K listed as obsolete?
A: The IM02EB3R3K has been discontinued by Vishay Dale. The 1025R-32K from API Delevan Inc. remains in active production with equivalent specifications.
Q: Will the 1025R-32K fit the same PCB footprint?
A: Yes. Both components use identical axial through-hole package dimensions of 0.095" diameter by 0.250" length (2.41mm x 6.35mm), ensuring direct board-level compatibility.
Q: Are the frequency characteristics the same?
A: Yes. Both parts exhibit Q of 45 @ 7.9MHz and a self-resonant frequency of 90MHz.
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