L70S010.T Equivalent & Substitute Parts

Part Overview

The L70S010.T is a POWR-GARD® L70S series cartridge fuse manufactured by Littelfuse, rated for 10A at 700 VAC / 650 VDC. This component is designed for semiconductor applications and requires a compatible fuse holder for installation. The part maintains Active product status with full compliance to CE, CSA, and UR approval agencies. Substitute parts are identified when equivalent electrical ratings and mechanical compatibility are maintained within the allowed parameter tolerances for this fuse category.

Substiute Parts

L70S010.T

LittelfuseIn Stock: 844L70S010.T Datasheet

Current PartRFQ

FWP-10A14FA

Eaton - Bussmann Electrical DivisionIn Stock: 836FWP-10A14FA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L70S010.T is determined by the following criteria:

• Current Rating: Must be 10A
• Voltage Rating - AC: Must be 700 VAC or higher
• Voltage Rating - DC: Must be 650 VDC or higher
• Fuse Type: Must be Cartridge
• Physical Dimensions: Must be 0.563" Dia x 2.000" L (14.30mm x 50.80mm)
• Approval Agencies: Must maintain CE, CSA, and UR certifications
• RoHS Compliance: Must be RoHS Compliant

The FWP-10A14FA meets all substitution criteria with equivalent current and AC voltage ratings, superior DC voltage rating (800 VDC vs. 650 VDC), identical physical dimensions, and matching approval certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the L70S010.T and FWP-10A14FA are Active products with full compliance to CE, CSA, and UR approval agencies. The FWP-10A14FA provides equivalent performance for the specified 10A / 700 VAC rating with enhanced DC voltage capability (800 VDC vs. 650 VDC) and superior DC breaking capacity (50kA vs. 20kA). Both components maintain identical physical dimensions and are suitable for direct mechanical substitution in compatible fuse holders. Selection between these parts should be based on application-specific DC voltage requirements and breaking capacity needs.

Frequently Asked Questions (FAQ)

Q: Can the FWP-10A14FA be used as a direct replacement for the L70S010.T?

A: Yes. Both parts are 10A cartridge fuses with 700 VAC rating, identical physical dimensions (0.563" Dia x 2.000" L), and matching approval certifications (CE, CSA, UR). The FWP-10A14FA has a higher DC voltage rating (800 VDC vs. 650 VDC), making it suitable for applications within or below the original specification.

Q: What are the key differences between these two fuses?

A: The primary differences are DC voltage rating (650 VDC vs. 800 VDC), DC breaking capacity (20kA vs. 50kA), and manufacturer. Both maintain identical AC ratings, current ratings, and physical form factors.

Q: Are there any compatibility concerns with fuse holders?

A: No. Both parts share identical cartridge dimensions (0.563" Dia x 2.000" L) and require the same holder type. Physical compatibility is maintained.

Q: Do both parts meet RoHS requirements?

A: Yes. The L70S010.T is ROHS3 Compliant, and the FWP-10A14FA is RoHS Compliant. Both meet RoHS standards.

Q: Which part should be selected for new designs?

A: Selection depends on application DC voltage requirements. For applications at or below 650 VDC, either part is acceptable. For applications requiring higher DC voltage capability or breaking capacity, the FWP-10A14FA is the appropriate choice.