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L0805C2R2MPWST Equivalent & Substitute Parts
Part Overview
The L0805C2R2MPWST is a 2.2 µH unshielded drum core wirewound inductor manufactured by KEMET in the 0805 (2012 Metric) surface mount package. This component is rated for 240 mA continuous current with a DC resistance of 230 mOhm and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute components must maintain electrical performance within the specified parameter tolerances while meeting the same physical and environmental requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Inductance | 2.2 | µH |
| Inductance Tolerance | ±20% | % |
| Current Rating | 240 | mA |
| DC Resistance (DCR) | 230 | mOhm |
| Core Type | Ferrite Drum Core | — |
| Shielding | Unshielded | — |
| Package / Case | 0805 (2012 Metric) | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -40°C to 105°C | — |
| Frequency - Self Resonant | 80 | MHz |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the L0805C2R2MPWST is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Criteria:
- Inductance value of 2.2 µH with ±20% tolerance
- Ferrite drum core construction
- Unshielded configuration
- Self-resonant frequency of 80 MHz
- Operating temperature range of -40°C to 105°C
- Inductance test frequency of 7.96 MHz
Mechanical Equivalence Criteria:
- 0805 (2012 Metric) package / case designation
- Surface mount mounting type
- Physical dimensions: 0.079" L × 0.049" W (2.00 mm × 1.25 mm)
- Maximum seated height of 0.057" (1.45 mm)
Compliance Equivalence Criteria:
- ROHS3 compliance
- Moisture Sensitivity Level 1 (Unlimited)
- REACH Unaffected status
- ECCN EAR99 classification
Substitute components must satisfy all three equivalence categories. Current rating and DC resistance variations are acceptable within the bounds of the specified inductance tolerance and core material properties, provided the substitute maintains electrical performance in the target application circuit.
Parameter Comparison
| Parameter | L0805C2R2MPWST (KEMET) | LBR2012T2R2M (Taiyo Yuden) | Notes |
|---|---|---|---|
| Inductance | 2.2 µH | 2.2 µH | Identical |
| Inductance Tolerance | ±20% | ±20% | Identical |
| Current Rating | 240 mA | 260 mA | Substitute rated higher |
| DC Resistance (DCR) | 230 mOhm | 130 mOhm | Substitute lower |
| Core Type | Ferrite Drum Core | Ferrite Drum Core | Identical |
| Shielding | Unshielded | Unshielded | Identical |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | Identical |
| Mounting Type | Surface Mount | Surface Mount | Identical |
| Physical Dimensions | 0.079" L × 0.049" W (2.00 mm × 1.25 mm) | 0.079" L × 0.049" W (2.00 mm × 1.25 mm) | Identical |
| Height - Seated (Max) | 0.057" (1.45 mm) | 0.057" (1.45 mm) | Identical |
| Operating Temperature Range | -40°C to 105°C | -40°C to 105°C | Identical |
| Frequency - Self Resonant | 80 MHz | 80 MHz | Identical |
| Inductance Frequency - Test | 7.96 MHz | 7.96 MHz | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
| Product Status | Obsolete | Not For New Designs | Both restricted |
Engineering Selection Recommendations
The LBR2012T2R2M manufactured by Taiyo Yuden is electrically and mechanically equivalent to the L0805C2R2MPWST. Both components share identical inductance values, tolerance specifications, package dimensions, and environmental operating parameters. The substitute part demonstrates improved electrical performance characteristics with a higher current rating (260 mA versus 240 mA) and lower DC resistance (130 mOhm versus 230 mOhm), resulting in reduced power dissipation in the application circuit.
Both the original and substitute parts carry restricted product status designations. The L0805C2R2MPWST is classified as obsolete, while the LBR2012T2R2M is designated as not for new designs. For applications requiring active component sourcing, alternative 2.2 µH 0805 inductors from current production lines should be evaluated. Both parts maintain full compliance with ROHS3 and REACH regulatory requirements, with identical moisture sensitivity and ECCN classifications.
Frequently Asked Questions (FAQ)
Q: Can the LBR2012T2R2M directly replace the L0805C2R2MPWST in existing circuit designs?
A: Yes. Both components are mechanically and electrically equivalent across all critical parameters. The substitute part fits the identical 0805 (2012 Metric) package footprint and maintains the same inductance value, tolerance, operating temperature range, and self-resonant frequency. The improved current rating and lower DC resistance of the substitute part provide enhanced performance margins.
Q: What are the key differences between these two inductors?
A: The primary differences are manufacturer identity and DC resistance characteristics. The LBR2012T2R2M exhibits lower DC resistance (130 mOhm versus 230 mOhm) and higher current rating (260 mA versus 240 mA). These differences result in reduced power dissipation and improved thermal performance in the substitute component. All other electrical and mechanical specifications are identical.
Q: Are both parts suitable for new product designs?
A: Neither part is recommended for new designs. The L0805C2R2MPWST is obsolete, and the LBR2012T2R2M is designated as not for new designs. For new product development, alternative 2.2 µH 0805 surface mount inductors from active production series should be selected.
Q: What packaging options are available for these parts?
A: The L0805C2R2MPWST is supplied in standard packaging. The LBR2012T2R2M is available in Tape & Reel (TR) format. Both components use the 0805 (2012 Metric) package / case designation with identical physical dimensions and mounting characteristics.
Q: Do these inductors have any shielding?
A: No. Both the L0805C2R2MPWST and LBR2012T2R2M are unshielded drum core inductors. The unshielded configuration is identical across both components and affects electromagnetic field distribution in the circuit layout.
Q: What is the moisture sensitivity classification for these parts?
A: Both inductors carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.
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