TR2-S505SC-2.5-R Equivalent & Substitute Parts

Part Overview

The TR2-S505SC-2.5-R is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 2.5 A at 250 V AC/DC with a 5mm x 20mm form factor. This fuse is designed for through-hole mounting applications requiring slow-blow response characteristics. The part is currently active in production with 920 pieces available in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

TR2-S505SC-2.5-R

Eaton - Electronics DivisionIn Stock: 999TR2-S505SC-2.5-R Datasheet

Current PartRFQ

TUC UDA-P 2.5A 250V (PF)

ConquerIn Stock: 2075TUC UDA-P 2.5A 250V (PF) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TR2-S505SC-2.5-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 2.5 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)

The substitute part TUC UDA-P 2.5A 250V (PF) manufactured by Conquer meets all critical electrical and mechanical parameters, confirming direct substitution capability within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the TR2-S505SC-2.5-R and TUC UDA-P 2.5A 250V (PF) are active production parts with equivalent electrical and mechanical specifications. Selection between these parts is based on the following factors:

TR2-S505SC-2.5-R (Eaton) is suitable for applications requiring certifications from BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, and VDE approval agencies.

TUC UDA-P 2.5A 250V (PF) (Conquer) is suitable for applications requiring certifications from CCC, cURus, KC, PSE, and TUV approval agencies, with extended operating temperature range of -55°C to 125°C and REACH Unaffected status.

Both parts carry RoHS compliance certifications and share identical ECCN and HTSUS classifications. The Conquer substitute provides higher melting I²t value (24.75 versus 16.6) and marginally lower DC cold resistance (0.0385 versus 0.0395 Ohms). Component selection should align with specific certification requirements and thermal operating conditions of the target application.

Frequently Asked Questions (FAQ)

Q: Can the TUC UDA-P 2.5A 250V (PF) directly replace the TR2-S505SC-2.5-R in existing designs?

A: Yes. Both parts share identical current rating (2.5 A), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), package dimensions (5mm x 20mm), mounting type (Through Hole), response time (Slow Blow), and breaking capacity (1.5 kA). Physical and electrical compatibility is confirmed.

Q: What are the differences in approval certifications between these two parts?

A: The TR2-S505SC-2.5-R carries approvals from BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, and VDE. The TUC UDA-P 2.5A 250V (PF) carries approvals from CCC, cURus, KC, PSE, and TUV. Application requirements should determine which certification set is necessary.

Q: Are there differences in thermal operating range between these parts?

A: The TR2-S505SC-2.5-R does not specify an operating temperature range. The TUC UDA-P 2.5A 250V (PF) specifies -55°C to 125°C operating temperature. For applications with defined thermal requirements, the Conquer part provides explicit temperature specification.

Q: How do the melting I²t values differ, and does this affect substitution?

A: The TR2-S505SC-2.5-R has a melting I²t of 16.6, while the TUC UDA-P 2.5A 250V (PF) has 24.75. Both parts maintain the same current rating and response time classification. The higher I²t value in the Conquer part indicates slightly different thermal characteristics within the slow-blow category. Application-specific thermal analysis determines if this difference is significant.

Q: What is the difference in packaging between these parts?

A: The TR2-S505SC-2.5-R is supplied in Tape & Reel (TR) packaging with 920 pieces in stock. The TUC UDA-P 2.5A 250V (PF) is supplied in Bulk packaging with 1967 pieces in stock. Packaging format selection depends on assembly process requirements and order quantity.

Q: Are both parts RoHS compliant?

A: Yes. The TR2-S505SC-2.5-R is RoHS Compliant. The TUC UDA-P 2.5A 250V (PF) is ROHS3 Compliant. Both meet RoHS requirements for the respective standards applicable to their production dates.