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ALS81G124NF063 Equivalent & Substitute Parts
Part Overview
The ALS81G124NF063 is a 120000 µF aluminum electrolytic capacitor rated for 63 V with screw terminals, manufactured by KEMET. This radial, can-style component is designed for general-purpose applications requiring high capacitance values in chassis-mount configurations. The part maintains an active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory requirements necessitate alternative stock sources.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 120000 µF |
| Voltage Rating | 63 V |
| Tolerance | ±20% |
| ESR @ 100Hz | 9 mOhm |
| Lifetime @ 105°C | 9000 Hrs |
| Operating Temperature Range | -40°C ~ 105°C |
| Ripple Current @ 100 Hz | 23.2 A |
| Ripple Current @ 10 kHz | 24.6 A |
| Package Type | Radial, Can - Screw Terminals |
| Mounting Type | Chassis Mount |
| Physical Dimensions | 3.031" Dia (77.00mm) × 4.213" Height (107.00mm) |
| Lead Spacing | 1.252" (31.80mm) |
Substitute Part Grouping Explanation
Substitution of the ALS81G124NF063 with the ALS80A124NF063 is based on electrical and mechanical parameter equivalence. Both parts share identical specifications across all critical performance parameters: capacitance value of 120000 µF, voltage rating of 63 V, tolerance of ±20%, ESR of 9 mOhm at 100 Hz, and lifetime rating of 9000 hours at 105°C. The operating temperature range, ripple current ratings at both low and high frequencies, and impedance characteristics are identical. Physical dimensions, lead spacing, and mounting configuration are equivalent, confirming mechanical interchangeability. Both parts maintain the same package classification as radial, can-style components with screw terminals suitable for chassis mounting. Compliance certifications including RoHS3 status and REACH unaffected designation are identical, ensuring regulatory equivalence.
Parameter Comparison
| Parameter | ALS81G124NF063 | ALS80A124NF063 | Match |
|---|---|---|---|
| Manufacturer | KEMET | KEMET | Yes |
| Capacitance | 120000 µF | 120000 µF | Yes |
| Voltage Rating | 63 V | 63 V | Yes |
| Tolerance | ±20% | ±20% | Yes |
| ESR @ 100Hz | 9 mOhm | 9 mOhm | Yes |
| Lifetime @ 105°C | 9000 Hrs | 9000 Hrs | Yes |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C | Yes |
| Ripple Current @ 100 Hz | 23.2 A | 23.2 A | Yes |
| Ripple Current @ 10 kHz | 24.6 A | 24.6 A | Yes |
| Impedance | 10 mOhms | 10 mOhms | Yes |
| Package Type | Radial, Can - Screw Terminals | Radial, Can - Screw Terminals | Yes |
| Mounting Type | Chassis Mount | Chassis Mount | Yes |
| Lead Spacing | 1.252" (31.80mm) | 1.252" (31.80mm) | Yes |
| Size / Dimension | 3.031" Dia (77.00mm) | 3.031" Dia (77.00mm) | Yes |
| Height - Seated (Max) | 4.213" (107.00mm) | 4.213" (107.00mm) | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| REACH Status | REACH Unaffected | REACH Unaffected | Yes |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
Both the ALS81G124NF063 and ALS80A124NF063 are active products manufactured by KEMET with full RoHS3 compliance and REACH unaffected status. The parts are electrically and mechanically equivalent across all specified parameters. Selection between these two part numbers may be based on inventory availability, lead time considerations, or supply chain preferences. The ALS80A124NF063 currently maintains higher inventory levels at 991 pieces compared to 736 pieces for the ALS81G124NF063. Both parts are suitable for direct substitution in applications requiring 120000 µF capacitance at 63 V with screw terminal connections in chassis-mount configurations. The identical electrical performance characteristics, including ESR, ripple current ratings, and thermal specifications, ensure functional equivalence in circuit applications.
Frequently Asked Questions (FAQ)
Q: Are the ALS81G124NF063 and ALS80A124NF063 electrically interchangeable?
A: Yes. Both parts share identical electrical specifications including capacitance (120000 µF), voltage rating (63 V), ESR (9 mOhm @ 100 Hz), ripple current ratings, and operating temperature range (-40°C ~ 105°C). The lifetime rating of 9000 hours at 105°C is equivalent for both parts.
Q: Are these parts mechanically compatible?
A: Yes. Both parts feature identical physical dimensions (3.031" diameter, 4.213" height), lead spacing (1.252"), and package configuration (radial, can-style with screw terminals). Both are chassis-mount components with matching footprints.
Q: What is the difference between the ALS81G and ALS80A series designations?
A: The series designation reflects different product lines within KEMET's aluminum electrolytic capacitor portfolio. Despite different series names, these specific part numbers are parametrically equivalent across all electrical and mechanical specifications.
Q: Are both parts RoHS compliant?
A: Yes. Both the ALS81G124NF063 and ALS80A124NF063 are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.
Q: Can I use either part in new designs?
A: Yes. Both parts maintain active product status with KEMET. Either part number is suitable for new design implementations requiring 120000 µF, 63 V aluminum electrolytic capacitors with screw terminal connections.
Q: What is the tolerance specification for these capacitors?
A: Both parts carry a tolerance specification of ±20%, indicating the acceptable deviation from the nominal 120000 µF capacitance value.
Q: Are there any differences in packaging or lead configuration?
A: No. Both parts are supplied in bulk packaging with identical screw terminal lead configurations suitable for direct PCB or chassis mounting applications.
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