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ALS71H471DB500 Equivalent & Substitute Parts
Part Overview
The ALS71H471DB500 is a 470 µF, 500 V aluminum electrolytic capacitor manufactured by KEMET in the ALS71 series. This component features radial, can-style construction with screw terminals, designed for chassis mount applications requiring general-purpose energy storage and filtering. The part is Active in product status and maintains 11,000 hours of operational life at 85°C. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Capacitance | 470 | µF |
| Voltage - Rated | 500 | V |
| Tolerance | ±20% | - |
| ESR @ 100Hz | 531 | mOhm |
| Lifetime @ 85°C | 11000 | Hrs |
| Operating Temperature Range | -40 to 85 | °C |
| Ripple Current @ 100 Hz | 3.1 | A |
| Ripple Current @ 10 kHz | 6 | A |
| Package / Case | Radial, Can - Screw Terminals | - |
| Mounting Type | Chassis Mount | - |
| Lead Spacing | 12.80 | mm |
| Diameter | 36.00 | mm |
| Height - Seated (Max) | 64.00 | mm |
Substitute Part Grouping Explanation
Substitute parts for the ALS71H471DB500 are identified based on strict equivalence across the following critical parameters:
Electrical Equivalence Criteria:
- Capacitance: 470 µF (exact match)
- Voltage Rating: 500 V (exact match)
- Tolerance: ±20% (exact match)
- ESR @ 100Hz: 531 mOhm (exact match)
- Lifetime @ 85°C: 11000 Hrs (exact match)
- Ripple Current @ 100 Hz: 3.1 A (exact match)
- Ripple Current @ 10 kHz: 6 A (exact match)
- Operating Temperature Range: -40°C to 85°C (exact match)
Mechanical Equivalence Criteria:
- Package Type: Radial, Can - Screw Terminals (exact match)
- Mounting Type: Chassis Mount (exact match)
- Lead Spacing: 12.80 mm (exact match)
- Diameter: 36.00 mm (exact match)
- Height - Seated (Max): 64.00 mm (exact match)
Compliance Equivalence Criteria:
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
- REACH Status: REACH Unaffected
The ALS70A471DB500 meets all electrical, mechanical, and compliance requirements for direct substitution with the ALS71H471DB500.
Parameter Comparison
| Parameter | ALS71H471DB500 | ALS70A471DB500 | Match |
|---|---|---|---|
| Manufacturer | KEMET | KEMET | Yes |
| Capacitance | 470 µF | 470 µF | Yes |
| Voltage - Rated | 500 V | 500 V | Yes |
| Tolerance | ±20% | ±20% | Yes |
| ESR @ 100Hz | 531 mOhm | 531 mOhm | Yes |
| Lifetime @ 85°C | 11000 Hrs | 11000 Hrs | Yes |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | Yes |
| Ripple Current @ 100 Hz | 3.1 A | 3.1 A | Yes |
| Ripple Current @ 10 kHz | 6 A | 6 A | Yes |
| Impedance | 399 mOhms | 399 mOhms | Yes |
| Lead Spacing | 12.80 mm | 12.80 mm | Yes |
| Diameter | 36.00 mm | 36.00 mm | Yes |
| Height - Seated (Max) | 64.00 mm | 64.00 mm | Yes |
| Package / Case | Radial, Can - Screw Terminals | Radial, Can - Screw Terminals | Yes |
| Mounting Type | Chassis Mount | Chassis Mount | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Yes |
| REACH Status | REACH Unaffected | REACH Unaffected | Yes |
| Product Status | Active | Active | Yes |
Engineering Selection Recommendations
Both the ALS71H471DB500 and ALS70A471DB500 are Active products manufactured by KEMET with identical electrical performance, mechanical dimensions, and compliance certifications. Selection between these parts may be based on:
Inventory Availability: The ALS70A471DB500 has 955 pieces in stock, while the ALS71H471DB500 has 871 pieces in stock. Either part satisfies the same circuit requirements without modification.
Compliance Status: Both parts maintain ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited), ensuring regulatory compatibility in equivalent applications.
Series Designation: The ALS71H471DB500 belongs to the ALS71 series, while the ALS70A471DB500 belongs to the ALS70 series. This series difference does not affect electrical or mechanical performance for the specified parameters.
Frequently Asked Questions (FAQ)
Q: Can the ALS70A471DB500 be used as a direct replacement for the ALS71H471DB500?
A: Yes. All electrical parameters (capacitance, voltage rating, ESR, ripple current, lifetime, and operating temperature) are identical. Mechanical dimensions and mounting configuration are identical. Both parts are ROHS3 compliant and REACH Unaffected.
Q: Are there any differences in the screw terminal configuration between these parts?
A: No. Both parts feature identical radial, can-style construction with screw terminals, lead spacing of 12.80 mm, and chassis mount configuration.
Q: What is the significance of the series designation (ALS71 vs. ALS70)?
A: The series designation indicates the product line within KEMET's aluminum electrolytic capacitor portfolio. For the specified parameters in this comparison, the series difference does not affect substitution eligibility.
Q: Are both parts suitable for high-frequency ripple current applications?
A: Yes. Both parts support 6 A ripple current at 10 kHz and 3.1 A ripple current at 100 Hz, with identical ESR of 531 mOhm @ 100Hz.
Q: What is the operating temperature range for both parts?
A: Both parts operate across -40°C to 85°C with a rated lifetime of 11,000 hours at 85°C.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both parts are ROHS3 compliant, REACH Unaffected, and classified as Moisture Sensitivity Level 1 (Unlimited).
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