TPS-30V Equivalent & Substitute Parts Reference

Part Overview

The TPS-30V is a 30A 170 VDC fuse cartridge manufactured by Eaton - Bussmann Electrical Division from the Telpower® TPS series. This through-hole radial bend cylinder fuse is designed for telecom applications with a breaking capacity of 100kA at rated voltage. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance, repairs, and ongoing component sourcing in legacy telecom installations.

Substiute Parts

TPS-30V

Eaton - Bussmann Electrical DivisionIn Stock: 1171TPS-30V Datasheet

Current PartRFQ

0TLS030.TXLS

Littelfuse Inc.In Stock: 7170TLS030.TXLS Datasheet

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0TLS030.TXV

Littelfuse Inc.In Stock: 10710TLS030.TXV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS-30V are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Critical for Substitution):

• Current Rating: 30A (exact match required)
• Voltage Rating - DC: 170 VDC (exact match required)
• Breaking Capacity @ Rated Voltage: 100kA (exact match required)

Mechanical Parameters (Critical for Substitution):

• Fuse Type: Cartridge (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial Bend Cylinder (exact match required)

Functional Parameters:

• Applications: Telecom (matching application domain)

Both substitute parts listed below meet all critical electrical and mechanical parameters, ensuring direct functional equivalence in telecom circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both Littelfuse POWR-GARD® TLS substitute parts (0TLS030.TXLS and 0TLS030.TXV) provide direct electrical and mechanical equivalence to the obsolete TPS-30V. Selection between the two substitutes should be based on the following factors:

Product Status: Both substitute parts are Active products, ensuring long-term availability and supply chain continuity compared to the Obsolete TPS-30V.

Compliance & Certifications: Both substitutes carry CE and cURus approvals, meeting international safety standards. The TPS-30V carries CE and UR approvals. The cURus certification on substitute parts provides equivalent regulatory coverage for telecom applications.

Dimensional Compatibility: The 0TLS030.TXV (0.563" Dia x 0.877" H) provides the closest dimensional match to the original TPS-30V (0.563" Dia x 0.874" H), with a height variance of 0.003". The 0TLS030.TXLS (0.562" Dia x 0.944" L) has a greater length variance of 0.070", which may require mechanical accommodation verification in space-constrained applications.

Response Characteristic: Both substitutes specify Fast Blow response, providing consistent circuit protection behavior in telecom systems.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0TLS030.TXLS or 0TLS030.TXV be used as direct replacements for the TPS-30V?

A: Yes. Both parts meet all critical electrical parameters (30A, 170 VDC, 100kA breaking capacity) and mechanical specifications (cartridge type, through-hole mounting, radial bend cylinder package). They are functionally equivalent for telecom circuit protection applications.

Q: What is the difference between the two Littelfuse substitute parts?

A: The primary difference is physical dimension. The 0TLS030.TXV has a height of 0.877" (22.28mm), closely matching the original TPS-30V at 0.874" (22.20mm). The 0TLS030.TXLS has a length of 0.944" (23.98mm), which is 0.070" longer. Both have identical electrical ratings and response characteristics.

Q: Are there any compliance or certification differences between the substitutes and the original part?

A: The original TPS-30V carries CE and UR approvals. Both Littelfuse substitutes carry CE and cURus approvals. The cURus certification provides equivalent regulatory recognition for North American and international markets in telecom applications.

Q: Which substitute should I select if space is limited in my application?

A: The 0TLS030.TXV is recommended for space-constrained installations due to its dimensional alignment with the original TPS-30V, particularly in height (0.877" vs. 0.874").

Q: Are both substitutes available in the same packaging as the original?

A: Both Littelfuse substitutes are supplied in Bulk packaging. The original TPS-30V was supplied with "-" packaging designation. Verify packaging requirements for your procurement process.

Q: Do the substitute parts have RoHS compliance?

A: Both Littelfuse substitutes are ROHS3 Compliant. The original TPS-30V does not specify RoHS status in available documentation.