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IDCS2512ER2R2M Equivalent & Substitute Parts
Part Overview
The IDCS2512ER2R2M is a 2.2 µH shielded inductor manufactured by Vishay Dale, designed for surface mount applications requiring fixed inductance in compact form factors. This component operates across the industrial temperature range of -40°C to 125°C and is classified as Active product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 2.2 | µH |
| Inductance Tolerance | ±20% | % |
| Current Rating | 1.8 | A |
| DC Resistance (DCR) | 50 | mOhm Max |
| Shielding | Shielded | — |
| Core Material | Ferrite | — |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility for the IDCS2512ER2R2M is determined by the following critical parameters:
Inductance Value: Must be 2.2 µH with ±20% tolerance to maintain circuit design specifications.
Current Rating: Substitute parts must support minimum 1.8 A continuous current. Higher current ratings provide design margin and are acceptable.
DC Resistance: Substitute parts with DCR ≤ 50 mOhm Max are compatible. Lower DCR values reduce power dissipation and are acceptable.
Shielding: Shielded construction is required to prevent electromagnetic interference in the application circuit.
Core Material: Ferrite core material is specified for this inductance category.
Operating Temperature Range: Substitute parts must support the full -40°C to 125°C range.
Mounting Type: Surface mount configuration is required for PCB integration.
Compliance: RoHS3 compliance is mandatory for regulatory alignment.
The SRR0604-2R2ML manufactured by Bourns Inc. meets all substitution criteria within these parameters.
Parameter Comparison
| Parameter | IDCS2512ER2R2M (Vishay Dale) | SRR0604-2R2ML (Bourns Inc.) | Compatibility |
|---|---|---|---|
| Inductance | 2.2 µH | 2.2 µH | Match |
| Inductance Tolerance | ±20% | ±20% | Match |
| Current Rating | 1.8 A | 2.5 A | Compatible (higher rating) |
| DC Resistance (DCR) | 50 mOhm Max | 32 mOhm Max | Compatible (lower DCR) |
| Shielding | Shielded | Shielded | Match |
| Core Material | Ferrite | Ferrite | Match |
| Operating Temperature | -40 to 125°C | -40 to 125°C | Match |
| Mounting Type | Surface Mount | Surface Mount | Match |
| Package / Case | Nonstandard | Nonstandard, Corner Terminals | Verify PCB footprint compatibility |
| Size / Dimension | 6.60 x 4.45 mm (L x W) | 6.50 x 6.50 mm (L x W) | Similar footprint area |
| Height - Seated (Max) | 2.92 mm | 4.80 mm | SRR0604 is taller; verify clearance |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Match |
| Product Status | Active | Active | Match |
Engineering Selection Recommendations
Both the IDCS2512ER2R2M and SRR0604-2R2ML are Active status products with ROHS3 compliance and MSL Level 1 ratings, ensuring regulatory alignment and long-term availability. The SRR0604-2R2ML provides performance advantages through higher current rating (2.5 A vs. 1.8 A) and lower DC resistance (32 mOhm vs. 50 mOhm), resulting in reduced thermal dissipation and improved circuit efficiency. Physical dimensions require evaluation: the SRR0604-2R2ML has a larger footprint (6.50 x 6.50 mm vs. 6.60 x 4.45 mm) and greater height (4.80 mm vs. 2.92 mm), necessitating PCB layout verification and clearance confirmation before implementation. Both components maintain identical inductance value, tolerance, shielding, core material, and operating temperature specifications.
Frequently Asked Questions (FAQ)
Q: Can the SRR0604-2R2ML directly replace the IDCS2512ER2R2M in existing designs?
A: Electrical substitution is valid based on matching inductance, tolerance, shielding, and core material. Physical substitution requires PCB footprint verification due to different dimensions and terminal configuration (corner terminals on SRR0604). Height difference (4.80 mm vs. 2.92 mm) must be confirmed against available clearance.
Q: What is the significance of the lower DC resistance in the SRR0604-2R2ML?
A: Lower DC resistance (32 mOhm vs. 50 mOhm) reduces I²R power dissipation, lowering component temperature rise and improving overall circuit efficiency. This is a performance advantage when thermal management is a design consideration.
Q: Are both parts suitable for the same operating temperature range?
A: Yes. Both components operate across -40°C to 125°C, meeting identical temperature specifications for industrial applications.
Q: What does the higher current rating (2.5 A vs. 1.8 A) on the SRR0604-2R2ML indicate?
A: The higher saturation current rating provides additional design margin and allows operation at higher current levels without inductance degradation. For applications limited to 1.8 A, both parts are functionally equivalent in this parameter.
Q: Are there compliance or supply chain differences between these parts?
A: Both parts are ROHS3 compliant, REACH unaffected, and classified as Active products. Both carry MSL Level 1 (unlimited moisture sensitivity). Supply availability may differ; verify current inventory status with component distributors.
Q: What is the impact of the corner terminal configuration on the SRR0604-2R2ML?
A: Corner terminals affect PCB pad layout and soldering process. Verify that existing PCB footprints accommodate this terminal style before design implementation.
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