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ELJ-DA820JF Equivalent & Substitute Parts
Part Overview
The ELJ-DA820JF is a 82 µH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 80 mA maximum current with 10 Ohm DC resistance in a 1210 (3225 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new production and replacement applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 82 µH |
| Tolerance | ±5% |
| Current Rating | 80 mA |
| DC Resistance (DCR) | 10 Ohm Max |
| Package / Case | 1210 (3225 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -20°C ~ 85°C |
| Shielding | Unshielded |
| Q @ Frequency | 19 @ 2.52 MHz |
| Self Resonant Frequency | 7 MHz |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Inductance value: 82 µH (±5% tolerance maintained)
- Package / Case: 1210 (3225 Metric) surface mount form factor
- DC Resistance: Maximum 10 Ohm (allows parts rated up to 12 Ohm with design verification)
- Current Rating: Minimum 80 mA (higher ratings acceptable for derating margin)
- Shielding: Unshielded configuration
- Mounting Type: Surface Mount
Grouping Logic:
Direct Equivalents maintain all primary electrical parameters within the original specification envelope. These parts are interchangeable without circuit modification.
Compatible Substitutes exceed minimum current rating or operate within extended temperature ranges while maintaining core electrical characteristics. These require design verification for specific application constraints.
Similar Parts share inductance, package, and core electrical parameters but may have different core materials or slightly elevated DCR values. Application-specific testing is necessary.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Inductance (µH) | Current Rating (mA) | DCR (Ohm Max) | Package | Core Material | Operating Temp (°C) | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| ELJ-DA820JF | Panasonic Electronic Components | 82 | 80 | 10 | 1210 (3225 Metric) | Wirewound | -20 ~ 85 | Obsolete | Not specified |
| 1210R-823J | API Delevan Inc. | 82 | 136 | 10 | 1210 (3225 Metric) | Ferrite | -55 ~ 125 | Active | ROHS3 Compliant |
| CM322522-820JL | Bourns Inc. | 82 | 60 | 10 | Nonstandard | Ferrite, Drum Core, Wirewound | -40 ~ 125 | Active | ROHS3 Compliant |
| IMC1210BN820J | Vishay Dale | 82 | 79 | 12 | 1210 (3225 Metric) | Iron Powder, Drum Core, Wirewound | -55 ~ 125 | Active | RoHS non-compliant |
| IMC1210EB820J | Vishay Dale | 82 | 79 | 12 | 1210 (3225 Metric) | Iron Powder, Drum Core, Wirewound | -55 ~ 125 | Active | ROHS3 Compliant |
| IMC1210ER820J | Vishay Dale | 82 | 79 | 12 | 1210 (3225 Metric) | Iron Powder, Drum Core, Wirewound | -55 ~ 125 | Active | ROHS3 Compliant |
| IMC1210SY820J | Vishay Dale | 82 | 79 | 12 | 1210 (3225 Metric) | Iron Powder, Drum Core, Wirewound | -55 ~ 125 | Active | RoHS non-compliant |
| NLV32T-820J-EF | TDK Corporation | 82 | 45 | 10 | 1210 (3225 Metric) | Ferrite, Drum Core, Wirewound | -40 ~ 105 | Active | ROHS3 Compliant |
| NLV32T-820J-EFD | TDK Corporation | 82 | 45 | 10 | 1210 (3225 Metric) | Ferrite, Drum Core, Wirewound | -40 ~ 105 | Active | ROHS3 Compliant |
| NLV32T-820J-PF | TDK Corporation | 82 | 45 | 10 | 1210 (3225 Metric) | Ferrite, Drum Core, Wirewound | -40 ~ 105 | Not For New Designs | ROHS3 Compliant |
Engineering Selection Recommendations
Recommended Direct Substitutes (Active Status, Standard Package):
1210R-823J (API Delevan Inc.) is the primary recommended substitute. It maintains 82 µH inductance, 10 Ohm maximum DCR, and 1210 package form factor. The 136 mA current rating exceeds the original 80 mA specification, providing design margin. Extended operating temperature range (-55°C to 125°C) supports broader application environments. ROHS3 compliance satisfies modern regulatory requirements.
IMC1210EB820J and IMC1210ER820J (Vishay Dale) are active alternatives with identical electrical performance. Both maintain 82 µH inductance and 1210 package compatibility. The 12 Ohm maximum DCR represents a 20% increase over the original specification and requires circuit-level verification for impedance-sensitive applications. ROHS3 compliance is confirmed for both variants. IMC1210ER820J is packaged in Tape & Reel format, supporting automated assembly workflows.
Conditional Substitutes (Current Rating Below Original):
NLV32T-820J-EF and NLV32T-820J-EFD (TDK Corporation) maintain 82 µH inductance, 10 Ohm DCR, and 1210 package specifications. The 45 mA current rating is below the original 80 mA specification. These parts are suitable only for applications where actual circuit current demand does not exceed 45 mA. ROHS3 compliance and AEC-Q200 qualification (NLV32T-820J-EFD) support automotive and high-reliability applications.
Not Recommended:
NLV32T-820J-PF carries "Not For New Designs" status and is unsuitable for new production applications.
CM322522-820JL uses a nonstandard package form factor, incompatible with 1210 footprint requirements.
IMC1210BN820J and IMC1210SY820J lack ROHS3 compliance, creating regulatory and supply chain risk for modern applications.
Frequently Asked Questions (FAQ)
Q: Can I use 1210R-823J as a direct replacement for ELJ-DA820JF?
A: Yes. Both parts maintain 82 µH inductance, 10 Ohm maximum DCR, and 1210 (3225 Metric) surface mount package. The higher current rating (136 mA vs. 80 mA) provides additional design margin without circuit modification.
Q: What is the significance of the 12 Ohm DCR in IMC1210EB820J and IMC1210ER820J?
A: The 12 Ohm maximum DCR is 20% higher than the original 10 Ohm specification. In circuits where inductor resistance contributes to impedance matching, filtering response, or power dissipation calculations, this difference must be evaluated. Applications with strict impedance or Q-factor requirements require design verification before substitution.
Q: Why is NLV32T-820J-EF listed as a similar part rather than a direct equivalent?
A: The 45 mA current rating is below the original 80 mA specification. This part is suitable only for applications where actual circuit current remains below 45 mA. Exceeding this rating risks saturation and performance degradation.
Q: Are all recommended substitutes compatible with automated assembly?
A: 1210R-823J, IMC1210ER820J, NLV32T-820J-EF, and NLV32T-820J-EFD are supplied in Tape & Reel packaging, supporting automated pick-and-place assembly. IMC1210EB820J is supplied in Bulk packaging and requires manual handling or reel conversion.
Q: What compliance certifications should I prioritize for new designs?
A: ROHS3 compliance is mandatory for most modern applications. AEC-Q200 qualification (available on NLV32T-820J-EFD) is required for automotive and high-reliability environments. Verify specific regulatory requirements for your application before final part selection.
Q: Can I substitute parts with different core materials?
A: Core material differences (wirewound vs. ferrite vs. iron powder) affect frequency response, temperature stability, and saturation characteristics. While inductance and DCR values may match, core material changes require circuit-level testing to confirm performance in your specific application.
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