TPS-70V Equivalent & Substitute Parts Reference

Part Overview

The TPS-70V is a 70A 170 VDC fuse cartridge manufactured by Eaton - Bussmann Electrical Division, part of the Telpower® TPS series. This through-hole mounted radial bend cylinder fuse is designed for telecom applications requiring reliable DC circuit protection at high voltage levels. The component is currently active in production with 793 units in stock. Equivalent parts are necessary when primary sourcing is unavailable, when supply chain optimization is required, or when design flexibility across approved manufacturers is needed for production continuity.

Substiute Parts

TPS-70V

Eaton - Bussmann Electrical DivisionIn Stock: 892TPS-70V Datasheet

Current PartRFQ

0TLS070.TXLS

Littelfuse Inc.In Stock: 8490TLS070.TXLS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS-70V is determined by strict equivalence across the following critical parameters:

• Current Rating: 70A (exact match required)
• Voltage Rating (DC): 170 VDC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial Bend Cylinder (exact match required)
• Breaking Capacity @ Rated Voltage: 100kA (exact match required)

The substitute part 0TLS070.TXLS from Littelfuse Inc. meets all critical electrical and mechanical parameters. Both components are active products with current manufacturing status, ensuring long-term availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

Both the TPS-70V and 0TLS070.TXLS are active products with current manufacturing status, ensuring availability for new designs and replacement applications. Selection between these components should be based on:

• Approval agency requirements: The TPS-70V carries CE and UR certifications, while the 0TLS070.TXLS carries CE and cURus certifications. Verify that the required certifications align with your application's regulatory requirements.
• RoHS compliance: Both components meet RoHS requirements (TPS-70V is RoHS Compliant; 0TLS070.TXLS is ROHS3 Compliant).
• Physical dimensions: The 0TLS070.TXLS has a slightly larger height (0.944" vs 0.874"), which may impact PCB layout in space-constrained applications.
• Inventory availability: TPS-70V has 793 units in stock; 0TLS070.TXLS has 785 units in stock.

Both components are suitable for telecom applications requiring 70A 170 VDC protection with 100kA breaking capacity.

Frequently Asked Questions (FAQ)

Q: Can the 0TLS070.TXLS replace the TPS-70V in existing designs?

A: Yes. Both components share identical electrical ratings (70A, 170 VDC), fuse type (Cartridge), mounting method (Through Hole), and breaking capacity (100kA). The physical dimensions are compatible within standard PCB tolerances, though the 0TLS070.TXLS is 0.070" taller.

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

A: The primary differences are manufacturer (Eaton vs. Littelfuse), series designation (Telpower® TPS vs. POWR-GARD® TLS), response time specification (not specified vs. Fast Blow), and certification bodies (UR vs. cURus). All critical electrical and mechanical parameters are identical.

Q: Are both parts currently available?

A: Yes. Both the TPS-70V and 0TLS070.TXLS are active products with current inventory: TPS-70V has 793 units in stock, and 0TLS070.TXLS has 785 units in stock.

Q: Do I need to verify certifications before substituting?

A: Yes. Confirm that your application's regulatory requirements are met by the substitute part's certifications. The TPS-70V is certified by CE and UR; the 0TLS070.TXLS is certified by CE and cURus.

Q: Will the dimensional difference affect my circuit board layout?

A: The 0TLS070.TXLS is 0.070" taller than the TPS-70V (0.944" vs. 0.874"). Verify that your PCB layout and component clearances accommodate this height difference before substitution.