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5526R-5 Equivalent & Substitute Parts
Part Overview
The 5526R-5 is a 206 nH unshielded wirewound surface mount inductor rated for 3 A continuous current, manufactured by API Delevan Inc. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The part operates across the industrial temperature range of -55°C to 125°C and meets ROHS3 compliance requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 206 nH |
| Inductance Tolerance | ±5% |
| Current Rating | 3 A |
| Type | Wirewound |
| Core Material | Air |
| Shielding | Unshielded |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -55°C to 125°C |
| Self Resonant Frequency | 800 MHz |
| Q Factor @ 50 MHz | 95 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 5526R-5 is determined by strict equivalence across the following critical parameters:
- Inductance value: 206 nH ±5%
- Current rating: minimum 3 A
- Core type: Air core
- Shielding configuration: Unshielded
- Mounting technology: Surface mount
- Operating temperature range: must encompass or exceed -55°C to 125°C
- Self resonant frequency: 800 MHz
- RoHS3 compliance status
The Würth Elektronik 744918220 satisfies all substitution criteria. This part maintains identical inductance, tolerance, current rating, core material, and shielding characteristics. The component operates within the required frequency and temperature specifications and carries equivalent environmental compliance certifications.
Parameter Comparison
| Parameter | 5526R-5 (API Delevan) | 744918220 (Würth Elektronik) | Match Status |
|---|---|---|---|
| Inductance | 206 nH | 206 nH | Equivalent |
| Inductance Tolerance | ±5% | ±5% | Equivalent |
| Current Rating (Amps) | 3 A | 3 A | Equivalent |
| Type | Wirewound | Wirewound | Equivalent |
| Core Material | Air | Air | Equivalent |
| Shielding | Unshielded | Unshielded | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Self Resonant Frequency | 800 MHz | 800 MHz | Equivalent |
| Q @ 50 MHz | 95 | 100 | Substitute Superior |
| Operating Temperature Range | -55°C to 125°C | -40°C to 125°C | Substitute Reduced Low Temp |
| DC Resistance (DCR) | Not specified | 30 mOhm Max | Substitute Specified |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
Engineering Selection Recommendations
The 5526R-5 is obsolete; the Würth Elektronik 744918220 is the qualified substitute for new designs and ongoing production support. Both components meet ROHS3 compliance and carry identical moisture sensitivity ratings. The 744918220 offers superior Q factor performance at 50 MHz (100 versus 95) and provides specified DC resistance of 30 mOhm maximum, enabling more precise circuit analysis.
The primary consideration is operating temperature range. The 744918220 operates from -40°C to 125°C, which does not extend to the -55°C minimum of the original part. Applications requiring operation below -40°C must evaluate alternative sources or accept the temperature limitation of the substitute.
The 744918220 carries AEC-Q200 automotive qualification, providing additional reliability assurance for demanding applications. Packaging is supplied as Tape & Reel (TR) in standard 5910 format, supporting automated assembly processes.
Frequently Asked Questions (FAQ)
Q: Can the 744918220 directly replace the 5526R-5 in all applications?
A: The 744918220 is electrically and mechanically equivalent for inductance, current rating, frequency response, and compliance requirements. The substitute is suitable for applications operating within -40°C to 125°C. Applications requiring operation below -40°C require alternative component sourcing.
Q: What is the significance of the Q factor difference between these parts?
A: The 744918220 exhibits Q of 100 at 50 MHz compared to 95 for the 5526R-5. Higher Q indicates lower losses and improved efficiency at the test frequency. This difference is minor and does not affect functional substitution in most circuit applications.
Q: Why is DC resistance specified for the substitute but not the original part?
A: The 744918220 datasheet explicitly specifies maximum DC resistance of 30 mOhm, while the 5526R-5 specification does not include this parameter. For circuits where DCR is critical, the 744918220 provides measurable performance data. If the original part's DCR is required for design validation, contact the component supplier for historical specifications.
Q: Are there packaging differences between these parts?
A: Both components use nonstandard surface mount packages with similar physical dimensions. The 744918220 is supplied in standard Tape & Reel (TR) packaging format (5910), while the 5526R-5 packaging format is not specified. Verify mechanical fit and PCB footprint compatibility before design release.
Q: Does the AEC-Q200 rating on the 744918220 provide additional value?
A: AEC-Q200 qualification indicates the component meets automotive-grade reliability and testing standards. This certification is beneficial for applications requiring high reliability assurance but is not mandatory for general industrial use.
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