Equivalent & Substitute Parts for 5ETP 4-R

Part Overview

The 5ETP 4-R is a 4A 250VAC slow-blow glass cartridge fuse manufactured by Bel Fuse Inc. in a 5mm x 20mm through-hole package. This component is classified as Active product status and is widely used in circuit protection applications requiring reliable overcurrent protection with delayed response characteristics. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory availability, or specific certification compliance.

Substiute Parts

5ETP 4-R

Bel Fuse Inc.In Stock: 16485ETP 4-R Datasheet

Current PartRFQ

5STP 4-R

Bel Fuse Inc.In Stock: 20555STP 4-R Datasheet

Parametric EquivalentRFQ

0219004.MXAEP

Littelfuse Inc.In Stock: 13650219004.MXAEP Datasheet

DirectRFQ

TSC-P-4A

OptiFuseIn Stock: 3641TSC-P-4A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5ETP 4-R are classified based on strict electrical and mechanical parameter alignment:

Parametric Equivalents share identical electrical characteristics (4A, 250VAC, slow-blow response, 5mm x 20mm package, through-hole mounting, -55°C to 125°C operating range, and ROHS3 compliance). These parts are interchangeable in applications where the specified parameters are the primary selection criteria.

Direct Manufacturer Equivalents meet the same electrical and mechanical requirements but may have minor dimensional variations or different breaking capacity ratings. These parts maintain functional compatibility while potentially offering different performance characteristics in specific fault conditions.

The following parameters determine substitution eligibility:

• Current Rating: 4 A (mandatory match)
• Voltage Rating: 250 V AC (mandatory match)
• Response Time: Slow Blow (mandatory match)
• Package Dimensions: 5mm x 20mm (mandatory match)
• Mounting Type: Through Hole (mandatory match)
• Operating Temperature: -55°C ~ 125°C (mandatory match)

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and environmental regulatory adherence.

5STP 4-R (Bel Fuse Inc.) is a parametric equivalent from the same manufacturer. This part shares identical electrical and mechanical specifications with the 5ETP 4-R. The primary distinction is the lower breaking capacity (40A versus 150A) and reduced melting I²t value (56 versus 300). Selection of this part is appropriate when breaking capacity requirements are lower than the original specification.

0219004.MXAEP (Littelfuse Inc.) is a direct manufacturer equivalent offering comparable breaking capacity (150A) and slightly higher melting I²t (330 versus 300). This part carries broader certification coverage including PSE and UL in addition to the certifications shared with the 5ETP 4-R. Minor dimensional variation exists (5.80mm diameter and 22.50mm length versus 5.50mm and 21.00mm), which may require mechanical fit verification in constrained mounting environments.

TSC-P-4A (OptiFuse) is a parametric equivalent with the highest breaking capacity (200A) and the lowest melting I²t value (30.8). This part carries UL 248 certification. Selection is appropriate for applications requiring maximum breaking capacity performance.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 5ETP 4-R with the 5STP 4-R?

A: Yes. Both parts share identical current rating (4A), voltage rating (250VAC), response time (slow-blow), package dimensions (5mm x 20mm), and operating temperature range (-55°C to 125°C). The 5STP 4-R has lower breaking capacity (40A) and melting I²t (56), making it suitable for applications where these lower values are acceptable.

Q: What is the difference between the 5ETP 4-R and 0219004.MXAEP?

A: Both parts meet the same electrical specifications (4A, 250VAC, slow-blow, 5mm x 20mm package). The 0219004.MXAEP has slightly higher melting I²t (330 versus 300) and comparable breaking capacity (150A). Minor dimensional differences exist: the Littelfuse part measures 5.80mm diameter x 22.50mm length compared to 5.50mm x 21.00mm for the Bel Fuse part. Mechanical fit in the circuit board or holder should be verified before substitution.

Q: Which substitute part has the highest breaking capacity?

A: The TSC-P-4A (OptiFuse) offers the highest breaking capacity at 200A, compared to 150A for the 5ETP 4-R and 0219004.MXAEP, and 40A for the 5STP 4-R.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (5STP 4-R, 0219004.MXAEP, and TSC-P-4A) are ROHS3 compliant, matching the environmental compliance status of the 5ETP 4-R.

Q: What certifications does each part carry?

A: The 5ETP 4-R carries CCC, CE, CSA, cULus, SEMKO, and VDE certifications. The 5STP 4-R carries CCC, CE, CSA, cURus, IMQ, SEMKO, and VDE certifications. The 0219004.MXAEP carries CCC, CE, CSA, PSE, SEMKO, UL, and VDE certifications. The TSC-P-4A carries cULus and UL 248 certifications.

Q: Can I use these parts interchangeably in all applications?

A: Substitution is valid when the application requirements align with the specified electrical parameters (4A, 250VAC, slow-blow response). Breaking capacity and melting I²t values should be evaluated against specific fault current conditions in the circuit. Mechanical fit must be verified, particularly for the 0219004.MXAEP due to minor dimensional variations.