Littelfuse 0230.600DRT2P Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230.600DRT2P is a 600 mA, 250 V AC / 125 V DC glass cartridge fuse with slow-blow response characteristics. This through-hole component is designed for circuit protection in applications requiring reliable overcurrent interruption across AC and DC voltage domains. The part maintains active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified to address inventory availability, packaging preferences, or specific application requirements while maintaining electrical and mechanical compatibility within defined tolerance ranges.

Substiute Parts

0230.600DRT2P

Littelfuse Inc.In Stock: 8550230.600DRT2P Datasheet

Current PartRFQ

BK/C515-600-R

Eaton - Electronics DivisionIn Stock: 854BK/C515-600-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 0230.600DRT2P is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Current Rating: 600 mA (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)

Mechanical Compatibility Requirements:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Axial cartridge format with compatible dimensions

Regulatory & Compliance Requirements:

• Approval Agencies: Must include CSA and UL certifications (minimum)
• RoHS Status: Compliant with applicable directives

The Eaton BK/C515-600-R meets all electrical and regulatory criteria. Physical dimensions vary slightly (0.217" Dia x 0.598" L vs. 0.177" Dia x 0.571" L), representing a 2AG standard form factor. This dimensional difference is acceptable for through-hole applications where footprint tolerance permits the larger 5mm x 15mm package.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (Littelfuse 0230.600DRT2P): Use when DC voltage rating of 125 V is required, when ROHS3 compliance is mandatory, or when CE certification is a project requirement. This part carries active product status with full multi-agency approval.

Substitute Part (Eaton BK/C515-600-R): Use when AC-only applications permit omission of DC voltage specification, when 2AG standard form factor is preferred for inventory standardization, or when Eaton supply chain availability is advantageous. This part maintains CSA and UL certifications with RoHS compliance. Selection is valid only when circuit design confirms DC voltage stress does not exceed the AC-rated voltage capability.

Both parts are active products with established supply chains. Substitution is permissible based on application voltage domain and mechanical footprint constraints.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK/C515-600-R replace the Littelfuse 0230.600DRT2P in all applications?

A: Substitution is valid for AC-only circuits or mixed AC/DC circuits where DC voltage does not exceed 250 V. The Littelfuse part explicitly rates 125 V DC; the Eaton part does not specify DC voltage. Verify circuit DC voltage stress before substitution.

Q: What is the significance of the different melting I²t values (1.75 vs. 6.982)?

A: Melting I²t defines the thermal energy required to melt the fuse element. The Eaton part requires approximately 4× greater thermal energy. Both parts share identical current rating (600 mA) and response time (Slow Blow), indicating the difference reflects internal element design. Thermal response characteristics may differ in transient overcurrent scenarios; verify application transient profiles if thermal coordination is critical.

Q: Are the physical dimension differences acceptable?

A: The Eaton part uses standard 2AG form factor (5mm x 15mm) versus the Littelfuse non-standard axial format (4.50mm x 14.50mm). Substitution requires verification that the PCB or holder footprint accommodates the larger diameter (0.217" vs. 0.177"). Mechanical fit must be confirmed before deployment.

Q: Do both parts meet the same regulatory requirements?

A: Both parts carry CSA and UL certifications. The Littelfuse part additionally carries CE certification. If CE marking is a project requirement, the Littelfuse part is mandatory. For CSA/UL-only applications, both parts are equivalent.

Q: What is the impact of the different DC cold resistance values?

A: The Eaton part exhibits lower DC cold resistance (0.38 Ohms vs. 0.4805 Ohms). This represents approximately 21% lower resistance. In low-voltage DC circuits, this may result in marginally lower voltage drop across the fuse element. For most applications, this difference is negligible; verify if circuit design includes fuse voltage drop calculations.