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ELC-16B271L Equivalent & Substitute Parts
Part Overview
The ELC-16B271L is a 270 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.6 A with 170mOhm DC resistance. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, current rating, and through-hole mounting configuration while meeting modern compliance standards.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 270 µH |
| Tolerance | ±10% |
| Current Rating | 1.6 A |
| DC Resistance (DCR) | 170mOhm |
| Shielding | Unshielded |
| Mounting Type | Through Hole |
| Package Type | Radial, Vertical Cylinder |
| Size | 0.630" Dia (16.00mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the ELC-16B271L is determined by the following critical parameters:
- Inductance Value: Must be 270 µH ±10%
- Current Rating: Minimum 1.6 A
- Mounting Configuration: Through-hole radial, vertical cylinder package
- Shielding Type: Unshielded construction
- DC Resistance: Must not exceed design limits for the application circuit
The AIRD-01-271K from Abracon LLC meets these core substitution criteria. While the substitute exhibits a higher maximum DC resistance (300mOhm vs. 170mOhm), it maintains identical inductance, tolerance, and current rating specifications. The substitute uses drum core ferrite construction versus the original wirewound design, representing a functional equivalent within the specified electrical parameters.
Parameter Comparison
| Parameter | ELC-16B271L (Panasonic) | AIRD-01-271K (Abracon) |
|---|---|---|
| Inductance | 270 µH | 270 µH |
| Tolerance | ±10% | ±10% |
| Current Rating (Amps) | 1.6 A | 1.6 A |
| DC Resistance (DCR) | 170mOhm | 300mOhm Max |
| Shielding | Unshielded | Unshielded |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial, Vertical Cylinder (Open) | Radial, Vertical Cylinder |
| Size / Dimension | 0.630" Dia (16.00mm) | 0.650" Dia (16.50mm) |
| Height - Seated (Max) | 0.906" (23.00mm) | 0.827" (21.00mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The AIRD-01-271K is a direct functional substitute for the obsolete ELC-16B271L based on matching inductance, current rating, and mounting specifications. Both components are ROHS3 compliant and carry MSL 1 ratings, ensuring compatibility with standard manufacturing and storage protocols.
The primary design consideration is the increased DC resistance of the substitute (300mOhm maximum versus 170mOhm). Circuit designs operating at or near the 1.6 A rating should evaluate whether the additional resistive loss is acceptable. The substitute's active product status and current availability provide procurement advantages over the obsolete original component.
Physical dimensions show minor variations: the substitute is slightly larger in diameter (0.650" vs. 0.630") and shorter in height (0.827" vs. 0.906"). PCB layout verification is recommended to confirm mechanical fit within existing footprints.
Frequently Asked Questions (FAQ)
Q: Can the AIRD-01-271K replace the ELC-16B271L in all applications?
A: The AIRD-01-271K meets the core electrical specifications (270 µH, 1.6 A, ±10% tolerance) and mounting requirements. However, the higher DC resistance (300mOhm max vs. 170mOhm) may impact circuits sensitive to resistive losses. Verify that the increased resistance does not exceed your design's thermal or efficiency margins.
Q: What is the significance of the different core materials?
A: The ELC-16B271L uses wirewound construction while the AIRD-01-271K uses drum core ferrite. Both achieve the same inductance and current rating. The core material difference does not affect substitution eligibility when electrical parameters match.
Q: Are there physical fit concerns?
A: The AIRD-01-271K has a slightly larger diameter (0.650" vs. 0.630") and reduced height (0.827" vs. 0.906"). Confirm that your PCB layout accommodates these dimensional variations before component placement.
Q: Do both parts meet current compliance standards?
A: Yes. Both the ELC-16B271L and AIRD-01-271K are ROHS3 compliant with MSL 1 ratings, meeting standard manufacturing and environmental requirements.
Q: Why is the original part listed as obsolete?
A: The ELC-16B271L is no longer in active production by Panasonic. The AIRD-01-271K from Abracon LLC provides equivalent functionality with current manufacturing support and active inventory availability.
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