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1008HS-563EJFS Equivalent & Substitute Parts Reference
Part Overview
The 1008HS-563EJFS is a 56 µH unshielded drum core wirewound inductor manufactured by Delta Electronics/Components, designed for surface mount applications in the 1008 (2520 Metric) package. This component operates at 110 mA current rating with 6.8 Ohm DC resistance and is rated for -40°C to 85°C operating temperature range.
The 1008HS-563EJFS carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring 56 µH inductance in compact surface mount form factors.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 56 µH |
| Tolerance | ±5% |
| Current Rating | 110 mA |
| DC Resistance (DCR) | 6.8 Ohm |
| Core Type | Ferrite, Unshielded, Drum Core |
| Package | 1008 (2520 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the 1008HS-563EJFS must satisfy the following electrical and mechanical criteria:
Electrical Parameters (Critical):
- Inductance: 56 µH (±5% tolerance)
- Core material: Ferrite
- Shielding: Unshielded
- Package classification: 1008 (2520 Metric)
Mechanical Parameters (Critical):
- Mounting type: Surface Mount
- Physical package: 1008 form factor
Operational Considerations:
- Current rating and DC resistance values may vary within acceptable design margins
- Operating temperature range may extend beyond the original specification
- Self-resonant frequency and Q factor variations are acceptable provided inductance and tolerance remain constant
The substitute parts NLV25T-560J-EF and NLV25T-560J-EFD, both manufactured by TDK Corporation, meet these substitution criteria. Both parts maintain the 56 µH inductance value, ±5% tolerance, ferrite unshielded drum core construction, and 1008 (2520 Metric) surface mount package specification.
Parameter Comparison
| Parameter | 1008HS-563EJFS (Delta) | NLV25T-560J-EF (TDK) | NLV25T-560J-EFD (TDK) |
|---|---|---|---|
| Manufacturer | Delta Electronics/Components | TDK Corporation | TDK Corporation |
| Inductance | 56 µH | 56 µH | 56 µH |
| Tolerance | ±5% | ±5% | ±5% |
| Current Rating | 110 mA | 75 mA | 75 mA |
| DC Resistance | 6.8 Ohm | 12.1 Ohm Max | 12.1 Ohm Max |
| Core Type | Ferrite, Unshielded, Drum Core | Ferrite, Unshielded, Drum Core | Ferrite, Unshielded, Drum Core |
| Q @ 2.52 MHz | 18 | 20 | 20 |
| Self Resonant Frequency | 13 MHz | 16 MHz | 16 MHz |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 105°C | -40°C ~ 105°C |
| Package / Case | 1008 (2520 Metric) | 1008 (2520 Metric) | 1008 (2520 Metric) |
| Size / Dimension | 0.115" L x 0.110" W (2.92mm x 2.79mm) | 0.098" L x 0.079" W (2.50mm x 2.00mm) | 0.098" L x 0.079" W (2.50mm x 2.00mm) |
| Height - Seated (Max) | 0.083" (2.10mm) | 0.075" (1.90mm) | 0.075" (1.90mm) |
| Product Status | Obsolete | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Packaging | Bulk | Tape & Reel (TR) | Tape & Reel (TR) |
| Ratings | Not specified | Not specified | AEC-Q200 |
Engineering Selection Recommendations
Primary Substitute: NLV25T-560J-EFD
The NLV25T-560J-EFD is the preferred substitute for the obsolete 1008HS-563EJFS. This part maintains identical inductance (56 µH) and tolerance (±5%), matching core type and package specification. The NLV25T-560J-EFD carries active product status from TDK Corporation, ensuring long-term availability and supply chain stability. This part includes AEC-Q200 automotive qualification rating, providing additional reliability assurance for demanding applications. Operating temperature range extends to 105°C, exceeding the original specification. ROHS3 compliance and MSL 1 rating match the original component.
Secondary Substitute: NLV25T-560J-EF
The NLV25T-560J-EF provides an alternative substitute with identical electrical specifications to the NLV25T-560J-EFD. This part maintains 56 µH inductance, ±5% tolerance, and ferrite unshielded drum core construction in the 1008 (2520 Metric) package. The NLV25T-560J-EF carries active product status and ROHS3 compliance. The primary distinction from the NLV25T-560J-EFD is the absence of AEC-Q200 automotive qualification.
Design Considerations:
Both TDK substitutes exhibit higher DC resistance (12.1 Ohm Max) compared to the original 1008HS-563EJFS (6.8 Ohm). Applications sensitive to inductor losses or thermal dissipation must evaluate this parameter against circuit requirements. Both substitutes support reduced current rating (75 mA versus 110 mA original), requiring verification that application current demands do not exceed substitute specifications. Physical dimensions of TDK parts are smaller than the original component; PCB layout compatibility must be confirmed.
Frequently Asked Questions (FAQ)
Q: Can NLV25T-560J-EF and NLV25T-560J-EFD be used interchangeably with the 1008HS-563EJFS?
A: Both TDK parts maintain the critical electrical parameters: 56 µH inductance, ±5% tolerance, ferrite unshielded drum core, and 1008 (2520 Metric) surface mount package. Substitution is valid provided application current requirements do not exceed 75 mA and circuit design accommodates the higher DC resistance (12.1 Ohm Max versus 6.8 Ohm original).
Q: What is the difference between NLV25T-560J-EF and NLV25T-560J-EFD?
A: Both parts share identical electrical specifications and physical dimensions. The NLV25T-560J-EFD includes AEC-Q200 automotive qualification rating, while the NLV25T-560J-EF does not. For automotive or high-reliability applications, the NLV25T-560J-EFD is specified. For general industrial applications, either part is acceptable.
Q: Why is the DC resistance higher in the TDK substitutes?
A: The NLV25T-560J-EF and NLV25T-560J-EFD exhibit 12.1 Ohm maximum DC resistance compared to 6.8 Ohm in the original 1008HS-563EJFS. This difference reflects design variations between manufacturers. Circuit designs must account for increased resistive losses and thermal dissipation when substituting these parts.
Q: Are the physical dimensions compatible with the original PCB layout?
A: The TDK substitutes (2.50mm x 2.00mm, 1.90mm height) are smaller than the original Delta part (2.92mm x 2.79mm, 2.10mm height). PCB footprints designed for the 1008 (2520 Metric) package accommodate both dimensions. However, verify specific PCB layout constraints and clearance requirements for your application.
Q: What is the maximum current rating for the substitute parts?
A: Both NLV25T-560J-EF and NLV25T-560J-EFD are rated for 75 mA maximum current. Applications requiring 110 mA operation must use alternative components or verify that actual circuit current remains below 75 mA.
Q: Are the substitute parts RoHS and REACH compliant?
A: Both TDK substitutes are ROHS3 compliant. REACH status differs: NLV25T-560J-EF is REACH Affected, while NLV25T-560J-EFD is REACH Affected. Verify REACH compliance requirements for your specific application and region.
Q: What is the operating temperature range for the substitutes?
A: Both NLV25T-560J-EF and NLV25T-560J-EFD operate across -40°C to 105°C, exceeding the original 1008HS-563EJFS specification (-40°C to 85°C). This extended range provides additional design margin for temperature-sensitive applications.
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