Equivalent & Substitute Parts for S505-1.6-R Ceramic Fuse

Part Overview

The S505-1.6-R is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated at 1.6 A, 250 V AC, with a 5mm x 20mm form factor. This slow-blow fuse is designed for applications requiring circuit protection in AC/DC systems and is actively supported by the manufacturer. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and regulatory compliance standards to ensure direct functional interchangeability in holder-based fuse applications.

Substiute Parts

S505-1.6-R

Eaton - Electronics DivisionIn Stock: 786S505-1.6-R Datasheet

Current PartRFQ

BK/S505-1.6-R

Eaton - Electronics DivisionIn Stock: 989BK/S505-1.6-R Datasheet

DirectRFQ

BK1/S505-1.6-R

Eaton - Electronics DivisionIn Stock: 1576BK1/S505-1.6-R Datasheet

Parametric EquivalentRFQ

0001.2506

SCHURTER Inc.In Stock: 17080001.2506 Datasheet

Parametric EquivalentRFQ

021501.6HXP

Littelfuse Inc.In Stock: 2257021501.6HXP Datasheet

Parametric EquivalentRFQ

0659C1600-12

Bel Fuse Inc.In Stock: 45150659C1600-12 Datasheet

Parametric EquivalentRFQ

TCC-1.6A

OptiFuseIn Stock: 1500TCC-1.6A Datasheet

Parametric EquivalentRFQ

TCD-1.6A

OptiFuseIn Stock: 2065TCD-1.6A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S505-1.6-R is determined by the following critical parameters:

Primary Matching Criteria:

• Current Rating: 1.6 A (exact match required)
• Voltage Rating - AC: 250 V (minimum requirement)
• Package / Case: 5mm x 20mm (mechanical compatibility with holder)
• Fuse Type: Cartridge, Ceramic (functional equivalence)
• Response Time: Slow Blow (circuit protection characteristic)
• Mounting Type: Requires Holder (installation compatibility)

Secondary Compatibility Factors:

• Breaking Capacity @ Rated Voltage: 1.5 kA or higher
• Melting I²t: Within acceptable range for application-specific thermal response
• Regulatory Approvals: Compliance with applicable standards (BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, VDE)
• RoHS Status: RoHS Compliant or ROHS3 Compliant

All identified substitute parts meet or exceed these criteria and are confirmed as direct functional equivalents for the S505-1.6-R in holder-based circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Manufacturer Equivalents (Eaton - Electronics Division):

BK/S505-1.6-R and BK1/S505-1.6-R are direct equivalents manufactured by Eaton - Electronics Division. Both parts maintain identical electrical specifications and mechanical dimensions to the S505-1.6-R. BK1/S505-1.6-R carries ROHS3 Compliant status, providing enhanced regulatory alignment for applications with updated environmental compliance requirements. All three Eaton variants are Active products with full manufacturer support.

Cross-Manufacturer Parametric Equivalents:

021501.6HXP (Littelfuse Inc.), 0659C1600-12 (Bel Fuse Inc.), and TCD-1.6A (OptiFuse) are parametric equivalents meeting all primary matching criteria. These parts are Active products with ROHS3 Compliant status and operating temperature ranges of -55°C ~ 125°C, providing extended thermal performance compared to the main part specification. All three carry regulatory approvals suitable for industrial and commercial applications.

0001.2506 (SCHURTER Inc.) is a parametric equivalent with the additional advantage of 300 V DC voltage rating, providing enhanced DC circuit protection capability while maintaining 250 V AC compatibility. This part is suitable for applications requiring dual AC/DC voltage protection.

Alternative Consideration:

TCC-1.6A (OptiFuse) meets all primary electrical and mechanical criteria with ROHS3 Compliant status and extended operating temperature range. However, this part specifies a breaking capacity of 100 A at rated voltage, which differs from the 1.5 kA specification of the main part and other equivalents. Selection of TCC-1.6A requires confirmation that the application's fault current environment is compatible with this lower breaking capacity rating.

Frequently Asked Questions (FAQ)

Q: Can BK/S505-1.6-R be used as a direct replacement for S505-1.6-R?

A: Yes. BK/S505-1.6-R is a direct manufacturer equivalent produced by Eaton - Electronics Division with identical electrical ratings (1.6 A, 250 V AC), response time (Slow Blow), mechanical dimensions (5mm x 20mm), and breaking capacity (1.5 kA). Both parts are Active products with full regulatory compliance.

Q: What is the difference between BK1/S505-1.6-R and BK/S505-1.6-R?

A: Both are Eaton - Electronics Division products with identical electrical and mechanical specifications. The primary difference is RoHS compliance status: BK1/S505-1.6-R carries ROHS3 Compliant certification, while BK/S505-1.6-R carries RoHS Compliant status. Selection depends on application environmental compliance requirements.

Q: Can cross-manufacturer parts such as 021501.6HXP or 0659C1600-12 be used interchangeably with S505-1.6-R?

A: Yes. Both 021501.6HXP (Littelfuse Inc.) and 0659C1600-12 (Bel Fuse Inc.) are parametric equivalents meeting all primary matching criteria: 1.6 A current rating, 250 V AC voltage rating, 5mm x 20mm package, Slow Blow response, and 1.5 kA breaking capacity. Both are Active products with ROHS3 Compliant status and extended operating temperature ranges (-55°C ~ 125°C).

Q: What is the advantage of 0001.2506 compared to other substitutes?

A: 0001.2506 (SCHURTER Inc.) provides 300 V DC voltage rating in addition to 250 V AC compatibility, enabling protection in dual AC/DC voltage applications. This part is suitable for circuits requiring both AC and DC protection capability. All other electrical and mechanical parameters match the S505-1.6-R specification.

Q: Why does TCC-1.6A have a different breaking capacity specification?

A: TCC-1.6A (OptiFuse) specifies a breaking capacity of 100 A at rated voltage, compared to 1.5 kA for the S505-1.6-R and most other equivalents. This difference reflects the specific design characteristics of the OptiFuse TCC series. Selection of TCC-1.6A requires confirmation that the application's maximum fault current does not exceed 100 A.

Q: Are all substitute parts RoHS compliant?

A: All identified substitute parts carry either RoHS Compliant or ROHS3 Compliant status. ROHS3 Compliant parts meet the most current environmental compliance standards. Selection between RoHS Compliant and ROHS3 Compliant depends on application and procurement requirements.

Q: Do all substitute parts fit in the same holder as S505-1.6-R?

A: Yes. All substitute parts maintain the 5mm x 20mm mechanical dimensions (0.205" Dia x 0.787" L) and Requires Holder mounting type, ensuring compatibility with standard 5mm x 20mm fuse holders designed for the S505-1.6-R.

Q: What regulatory approvals should I verify for my specific application?

A: Regulatory approval requirements depend on application geography and industry standards. The S505-1.6-R carries approvals from BSI, CCC/CQC, CSA, cULus, IMQ, KC, PSE/JET, SEMKO, and VDE. Cross-manufacturer equivalents carry subsets of these approvals. Verify that the selected substitute part carries approvals required by your application's regulatory framework.