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IM02ER3R3K Equivalent & Substitute Parts
Part Overview
The IM02ER3R3K is a 3.3 µH unshielded molded inductor manufactured by Vishay Dale, designed for through-hole axial mounting applications. This component operates at a maximum current rating of 270 mA with a DC resistance of 850mOhm. The part is currently in stock with 781 pieces available as new original inventory.
Substitute parts are identified when they maintain equivalent electrical performance within the specified parameter tolerances and mechanical compatibility for axial through-hole mounting. The primary substitute identified is the Bourns Inc. 9230-32-RC series inductor.
Substiute Parts
Key Parameters
| Parameter | IM02ER3R3K |
|---|---|
| Inductance | 3.3 µH |
| Current Rating (Amps) | 270 mA |
| DC Resistance (DCR) | 850mOhm Max |
| Shielding | Unshielded |
| Type | Molded |
| Mounting Type | Through Hole |
| Package / Case | Axial |
Substitute Part Grouping Explanation
Substitution eligibility for the IM02ER3R3K is determined by the following critical parameters:
- Inductance Value: Must be 3.3 µH (±10% tolerance acceptable)
- DC Resistance (DCR): Must not exceed 850mOhm
- Shielding Configuration: Must be unshielded
- Mounting Type: Must be through-hole axial
- Core Material: Ferrite core construction
- Package Type: Axial molded inductor
The Bourns Inc. 9230-32-RC meets all substitution criteria. While it features a higher current rating of 380 mA compared to the 270 mA of the IM02ER3R3K, this represents an improvement in current handling capability and does not restrict substitution. The inductance value, DC resistance, shielding, and mounting configuration are identical.
Parameter Comparison
| Parameter | IM02ER3R3K (Vishay Dale) | 9230-32-RC (Bourns Inc.) |
|---|---|---|
| Inductance | 3.3 µH | 3.3 µH |
| Tolerance | Not specified | ±10% |
| Current Rating (Amps) | 270 mA | 380 mA |
| DC Resistance (DCR) | 850mOhm Max | 850mOhm Max |
| Shielding | Unshielded | Unshielded |
| Type | Molded | Molded |
| Core Material | Not specified | Ferrite |
| Operating Temperature | Not specified | -55°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Axial | Axial |
| RoHS Status | Not specified | ROHS3 Compliant |
Engineering Selection Recommendations
The Bourns Inc. 9230-32-RC is a direct substitute for the IM02ER3R3K based on matching electrical specifications and mechanical compatibility. The 9230-32-RC is classified as an active product with ROHS3 compliance and REACH unaffected status, confirming current manufacturing support and regulatory alignment.
The higher current rating of the 9230-32-RC (380 mA versus 270 mA) provides additional design margin without compromising the electrical characteristics required for the application. Both components maintain identical inductance values, DC resistance specifications, and axial through-hole mounting configuration.
Frequently Asked Questions (FAQ)
Q: Can the Bourns 9230-32-RC replace the Vishay Dale IM02ER3R3K in existing designs?
A: Yes. Both components share identical inductance (3.3 µH), DC resistance (850mOhm Max), shielding configuration (unshielded), and axial through-hole mounting. The 9230-32-RC features a higher current rating, which does not restrict substitution.
Q: What are the key electrical parameters that determine substitution compatibility?
A: Inductance value (3.3 µH), DC resistance (850mOhm Max), shielding type (unshielded), and mounting configuration (through-hole axial) are the primary parameters governing substitution eligibility.
Q: Are there any mechanical differences between these components?
A: Both components are molded inductors with axial through-hole mounting. The 9230-32-RC specifies a physical dimension of 0.095" Dia x 0.250" L (2.41mm x 6.35mm), confirming standard axial package compatibility.
Q: What is the tolerance specification for inductance?
A: The Bourns 9230-32-RC specifies ±10% inductance tolerance. This tolerance range encompasses the 3.3 µH nominal value and is standard for molded inductor products in this category.
Q: Are both components compliant with current regulatory requirements?
A: The Bourns 9230-32-RC is ROHS3 compliant and REACH unaffected. Regulatory status for the Vishay Dale IM02ER3R3K is not specified in the provided data.
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