Request Quote
(Ships tomorrow)
70F822AF-RC Equivalent & Substitute Parts
Part Overview
The 70F822AF-RC is a 82 mH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 32 mA maximum current with 238 Ohm DC resistance. This through-hole axial component operates across -55°C to 105°C and is compliant with ROHS3 and REACH standards. The product is currently obsolete, making equivalent substitutes necessary for ongoing design requirements and component sourcing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 82 mH |
| Tolerance | ±5% |
| Current Rating | 32 mA |
| DC Resistance (DCR) | 238 Ohm Max |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Mounting Type | Through Hole |
| Package Type | Axial |
| Operating Temperature Range | -55°C to 105°C |
Substitute Part Grouping Explanation
Substitution eligibility for the 70F822AF-RC is determined by the following critical parameters:
- Inductance Value: Must be 82 mH (±5% tolerance acceptable)
- Core Type: Ferrite drum core construction required
- Shielding Configuration: Unshielded design
- Mounting and Package: Through-hole axial configuration
- Current Handling: Substitute must support minimum 32 mA operation
- DC Resistance: Lower DCR values are acceptable as they indicate improved performance characteristics
- Temperature Range: Substitute must cover or exceed the -55°C to 105°C operating window
- Compliance: ROHS3 and REACH compliance required
The 4590R-826J from API Delevan Inc. meets all substitution criteria with identical inductance, core material, shielding, and package configuration. The substitute provides superior current rating (100 mA vs. 32 mA) and lower DC resistance (67.3 Ohm vs. 238 Ohm), making it functionally compatible for applications requiring the 70F822AF-RC specifications.
Parameter Comparison
| Parameter | 70F822AF-RC (Bourns) | 4590R-826J (API Delevan) |
|---|---|---|
| Inductance | 82 mH | 82 mH |
| Tolerance | ±5% | ±5% |
| Current Rating (Amps) | 32 mA | 100 mA |
| DC Resistance (DCR) | 238 Ohm Max | 67.3 Ohm Max |
| Core Material | Ferrite | Ferrite |
| Shielding | Unshielded | Unshielded |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Axial | Axial |
| Operating Temperature | -55°C to 105°C | -55°C to 125°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The 4590R-826J is a direct functional substitute for the obsolete 70F822AF-RC. Both components maintain identical inductance specifications, core construction, and package configuration. The substitute carries active product status with confirmed inventory availability, addressing the obsolescence constraint of the original part.
Compliance requirements are satisfied: both components are ROHS3 compliant and REACH unaffected. The 4590R-826J provides extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) and superior electrical performance through higher current rating and reduced DC resistance, making it suitable for direct replacement in existing designs.
Physical dimensions differ slightly (0.455" Dia x 0.900" L for substitute versus 0.430" Dia x 0.630" L for original), requiring verification of board layout constraints before implementation.
Frequently Asked Questions (FAQ)
Q: Can the 4590R-826J replace the 70F822AF-RC in all applications?
A: Yes, provided board layout accommodates the slightly larger physical dimensions (0.455" Dia x 0.900" L). The substitute meets all electrical and compliance requirements for direct substitution.
Q: What is the significance of the lower DC resistance in the substitute part?
A: The 4590R-826J exhibits 67.3 Ohm DCR compared to 238 Ohm DCR in the original. Lower DC resistance reduces power dissipation and heat generation, representing improved performance characteristics. This is advantageous in current-limited applications.
Q: Does the higher current rating of the 4590R-826J affect compatibility?
A: No. The 100 mA rating of the substitute exceeds the 32 mA requirement of the original design. Higher current ratings indicate greater design margin and do not compromise compatibility.
Q: Are there temperature range considerations for substitution?
A: The substitute operates to 125°C versus 105°C for the original. This extended range provides additional thermal margin and does not restrict substitution in designs requiring the original temperature specification.
Q: What packaging differences exist between these components?
A: Both components use through-hole axial packaging. Physical dimensions differ: the substitute is 0.025" larger in diameter and 0.270" longer. PCB layout verification is required before substitution.
Q: Are both components RoHS and REACH compliant?
A: Yes. Both the 70F822AF-RC and 4590R-826J are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts