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SMP5022-682M Equivalent & Substitute Parts
Part Overview
The SMP5022-682M is a 68 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for surface mount applications requiring moderate current handling and low DC resistance. This component is classified as Active product status with 876 pieces currently in stock. Alternative components may be required due to supply constraints, design optimization, or specific application requirements where substitute inductors meet the electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 68 µH |
| Inductance Tolerance | ±20% |
| Current Rating | 2.3 A |
| Saturation Current (Isat) | 4.5 A |
| DC Resistance (DCR) | 130 mOhm Max |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Operating Temperature Range | -55°C to 125°C |
| Mounting Type | Surface Mount |
| Package Type | Nonstandard |
| Inductance Test Frequency | 100 kHz |
Substitute Part Grouping Explanation
The SDR1806-680ML from Bourns Inc. qualifies as an equivalent substitute based on the following critical parameters:
- Inductance value: 68 µH (identical)
- Inductance tolerance: ±20% (identical)
- DC resistance: 130 mOhm Max (identical)
- Core material: Ferrite (identical)
- Shielding configuration: Unshielded (identical)
- Mounting type: Surface Mount (identical)
- Inductance test frequency: 100 kHz (identical)
- Package classification: Nonstandard (identical)
The substitute part demonstrates compatibility within the electrical performance envelope required for this application category. Physical dimensions and current ratings show minor variations within acceptable engineering tolerances for component substitution.
Parameter Comparison
| Parameter | SMP5022-682M (Gowanda) | SDR1806-680ML (Bourns) |
|---|---|---|
| Inductance | 68 µH | 68 µH |
| Inductance Tolerance | ±20% | ±20% |
| Current Rating (Amps) | 2.3 A | 2.1 A |
| Saturation Current (Isat) | 4.5 A | 3.8 A |
| DC Resistance (DCR) | 130 mOhm Max | 130 mOhm Max |
| Core Material | Ferrite | Ferrite |
| Core Type | Molded | Drum Core, Wirewound |
| Shielding | Unshielded | Unshielded |
| Operating Temperature Range | -55°C to 125°C | -40°C to 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package Type | Nonstandard | Nonstandard |
| Inductance Test Frequency | 100 kHz | 100 kHz |
| Self Resonant Frequency | Not specified | 8 MHz |
| Q @ Frequency | Not specified | 22 @ 2.52 MHz |
| Physical Dimensions (L x W) | 0.750" x 0.620" (19.04mm x 15.74mm) | 0.720" x 0.551" (18.30mm x 14.00mm) |
| Height - Seated (Max) | 0.280" (7.11mm) | 0.272" (6.90mm) |
Engineering Selection Recommendations
Both components maintain Active product status and are available in production quantities. The SDR1806-680ML carries ROHS3 compliance certification, whereas the SMP5022-682M RoHS status is not applicable. Both parts are REACH Unaffected and classified under EAR99 export control.
Selection between these inductors should be based on application-specific current requirements. The SMP5022-682M supports a 2.3 A continuous current rating with 4.5 A saturation current. The SDR1806-680ML operates at 2.1 A continuous current with 3.8 A saturation current. Applications requiring the full 2.3 A rating should retain the primary part. Applications operating below 2.1 A continuous current can utilize the substitute without performance degradation.
Temperature range consideration: The SMP5022-682M operates from -55°C to 125°C, while the SDR1806-680ML operates from -40°C to 125°C. Applications requiring operation below -40°C must use the primary part.
Physical footprint differences are minimal. The substitute part is slightly smaller in length and width with marginally reduced height, suitable for space-constrained layouts.
Frequently Asked Questions (FAQ)
Q: Can the SDR1806-680ML replace the SMP5022-682M in all applications?
A: Substitution is valid when application current requirements do not exceed 2.1 A continuous operation and operating temperature remains above -40°C. These are the primary limiting factors for direct substitution.
Q: What are the key electrical parameters that determine substitution compatibility?
A: Inductance value (68 µH), inductance tolerance (±20%), DC resistance (130 mOhm Max), core material (Ferrite), and shielding configuration (Unshielded) are identical between both parts. These parameters establish electrical equivalence.
Q: Are there physical compatibility concerns with PCB layout?
A: The SDR1806-680ML has slightly reduced dimensions (0.720" x 0.551" versus 0.750" x 0.620") and lower height (0.272" versus 0.280"). Existing PCB footprints designed for the SMP5022-682M will accommodate the substitute with clearance margin. Verify pad spacing compatibility with your specific PCB design.
Q: What is the difference between molded and drum core construction?
A: The SMP5022-682M uses molded construction while the SDR1806-680ML uses drum core wirewound construction. Both achieve identical electrical specifications for this application. Construction differences do not affect substitution validity when electrical parameters match.
Q: Are there compliance or certification differences?
A: The SDR1806-680ML is ROHS3 compliant. The SMP5022-682M RoHS status is not applicable. Both are REACH Unaffected and EAR99 classified. Verify compliance requirements for your specific application before selection.
Q: What inventory considerations apply?
A: The SMP5022-682M has 876 pieces in stock. The SDR1806-680ML has 3518 pieces in stock. Higher substitute availability may support extended production schedules or supply chain resilience requirements.
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