Equivalent & Substitute Parts for 0ADKP2500-RE

Part Overview

The 0ADKP2500-RE is a 2.5 A ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 600 V AC and 500 V DC operation. This through-hole component is designed for applications requiring slow-blow fuse protection in a 5mm x 20mm axial package. The part maintains active product status with ROHS3 compliance and cURus approval certification. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining equivalent electrical and mechanical performance within specified parameter tolerances.

Substiute Parts

0ADKP2500-RE

Bel Fuse Inc.In Stock: 11550ADKP2500-RE Datasheet

Current PartRFQ

TR2-S505H-V-2.5-R

Eaton - Electronics DivisionIn Stock: 17530TR2-S505H-V-2.5-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0ADKP2500-RE is determined by the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 2.5 A (exact match required)
• Voltage Rating - AC: 600 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)

Allowable Variation Parameters:

• Voltage Rating - DC: Substitute must meet or exceed 500 V DC rating
• Operating Temperature Range: Substitute must support the application's operating environment
• Approval Certifications: Substitute must maintain equivalent or superior compliance status

The TR2-S505H-V-2.5-R qualifies as a substitute based on matching all mandatory parameters. The DC voltage rating of 400 V on the substitute is lower than the 500 V DC specification of the main part; this represents a parameter variance that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

0ADKP2500-RE (Bel Fuse Inc.) is the primary specification. This part is active, ROHS3 compliant, and carries cURus certification. The 500 V DC rating provides the full specified voltage margin for DC applications.

TR2-S505H-V-2.5-R (Eaton - Electronics Division) is a qualified substitute for applications where the 400 V DC rating is sufficient. This part is active, ROHS3 compliant, and carries cULus and PSE/JET certifications, providing broader regional approval coverage. The higher breaking capacity (1.5kA) and superior melting I²t value (24.23 versus 12.5) indicate different thermal and mechanical characteristics that may be advantageous in specific circuit protection scenarios.

Selection between these parts depends on DC voltage requirements and regional certification needs. Both parts maintain identical AC voltage ratings, current ratings, fuse type, response time, and package specifications.

Frequently Asked Questions (FAQ)

Q: Can TR2-S505H-V-2.5-R replace 0ADKP2500-RE in all applications?

A: TR2-S505H-V-2.5-R is mechanically and electrically compatible for AC applications and DC applications rated at 400 V or lower. Applications requiring 500 V DC operation must use 0ADKP2500-RE or verify that the 400 V DC rating of the substitute is acceptable for the specific circuit design.

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

A: Both fuses share identical current rating (2.5 A), AC voltage rating (600 V), fuse type (ceramic cartridge), response time (slow blow), and package dimensions (5mm x 20mm axial). The primary differences are DC voltage rating (500 V versus 400 V), operating temperature range (-55°C to 125°C versus -40°C to 85°C), breaking capacity, and approval certifications.

Q: Are the physical dimensions identical?

A: Both fuses are specified as 5mm x 20mm (Axial) through-hole components. Minor dimensional variations exist: 0ADKP2500-RE measures 0.236" Dia x 0.886" L (6.00mm x 22.50mm), while TR2-S505H-V-2.5-R measures 0.218" Dia x 0.831" L (5.54mm x 21.10mm). These variations are within typical manufacturing tolerances for this package class and do not affect mechanical fit in standard fuse holders.

Q: Which certifications apply to each part?

A: 0ADKP2500-RE carries cURus certification. TR2-S505H-V-2.5-R carries cULus and PSE/JET certifications. Both parts are ROHS3 compliant and EAR99 classified.

Q: What is the significance of the melting I²t values?

A: Melting I²t indicates the thermal energy required to melt the fuse element. 0ADKP2500-RE has a melting I²t of 12.5, while TR2-S505H-V-2.5-R has 24.23. This difference reflects different fuse element designs and thermal response characteristics. The substitute's higher value indicates slower thermal response, which may affect nuisance trip behavior in circuits with high inrush currents.