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5526-1 Equivalent & Substitute Parts
Part Overview
The 5526-1 is a 90 nH unshielded wirewound inductor rated for 4.6 A continuous current, manufactured by API Delevan Inc. This component is designed for surface mount applications requiring low inductance values with air core construction. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 90 nH |
| Tolerance | ±5% |
| Current Rating | 4.6 A |
| Type | Wirewound |
| Core Material | Air |
| Shielding | Unshielded |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -55°C ~ 125°C |
| Self Resonant Frequency | 1.14 GHz |
| Q @ 50 MHz | 95 |
Substitute Part Grouping Explanation
The 744918190 manufactured by Würth Elektronik qualifies as a direct substitute based on the following critical parameters:
- Inductance value: 90 nH (identical)
- Tolerance: ±5% (identical)
- Current rating: 4.6 A (identical)
- Core type: Air (identical)
- Shielding: Unshielded (identical)
- Mounting: Surface Mount (identical)
- Self resonant frequency: 1.14 GHz (identical)
- Operating temperature range: -40°C ~ 125°C (encompasses primary operating window)
The substitute maintains electrical performance characteristics within the same specification envelope. Physical dimensions are comparable, with minor variations within manufacturing tolerances.
Parameter Comparison
| Parameter | 5526-1 (API Delevan) | 744918190 (Würth Elektronik) |
|---|---|---|
| Inductance | 90 nH | 90 nH |
| Tolerance | ±5% | ±5% |
| Current Rating (Amps) | 4.6 A | 4.6 A |
| Type | Wirewound | Wirewound |
| Core Material | Air | Air |
| Shielding | Unshielded | Unshielded |
| DC Resistance (DCR) | Not specified | 15 mOhm Max |
| Q @ 50 MHz | 95 | 100 |
| Self Resonant Frequency | 1.14 GHz | 1.14 GHz |
| Operating Temperature | -55°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Size / Dimension | 0.420" L x 0.250" W (10.67mm x 6.35mm) | 0.415" L x 0.250" W (10.55mm x 6.35mm) |
| Height - Seated (Max) | 0.235" (5.97mm) | 0.232" (5.90mm) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The 744918190 is the qualified substitute for the obsolete 5526-1. Selection is based on:
- Identical electrical specifications across all critical parameters
- Active product status with established supply chain availability
- ROHS3 compliance, providing regulatory advantage over the non-compliant original part
- AEC-Q200 automotive qualification rating
- Comparable physical footprint suitable for existing PCB layouts
- Specified DC resistance of 15 mOhm maximum provides additional design margin
The substitute maintains functional equivalence for all applications where the 5526-1 was originally specified.
Frequently Asked Questions (FAQ)
Q: Can the 744918190 be used as a direct replacement for the 5526-1 in existing designs?
A: Yes. The 744918190 meets all electrical and mechanical requirements of the 5526-1. Physical dimensions are within acceptable tolerances for standard PCB layouts. No circuit modifications are required.
Q: What is the difference in DC resistance between these parts?
A: The 5526-1 DC resistance is not specified in available documentation. The 744918190 specifies a maximum DC resistance of 15 mOhm. This specification provides additional design information for the substitute part.
Q: Are there temperature range considerations for substitution?
A: The 5526-1 operates from -55°C to 125°C. The 744918190 operates from -40°C to 125°C. For applications requiring operation below -40°C, the original part specification must be maintained. For standard industrial and commercial temperature ranges, the substitute is suitable.
Q: What packaging format is the 744918190 supplied in?
A: The 744918190 is supplied in Tape & Reel (TR) format with supplier device package designation 5910, suitable for automated assembly processes.
Q: Does the substitute part have any additional certifications?
A: Yes. The 744918190 carries AEC-Q200 automotive qualification and ROHS3 compliance, providing enhanced regulatory and quality assurance status compared to the obsolete original part.
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