Equivalent & Substitute Parts for S501-800-R

Part Overview

The S501-800-R is an 800 mA ceramic fuse cartridge rated for 250 V AC/DC operation in a 5mm x 20mm package format. Manufactured by Eaton - Electronics Division, this fast-blow fuse cartridge requires a compatible holder for installation and is classified as Active product status. Alternative equivalent parts become necessary when the primary part number experiences supply constraints, when specific certification requirements must be met for regional compliance, or when design flexibility across multiple manufacturers is required for procurement optimization.

Substiute Parts

S501-800-R

Eaton - Electronics DivisionIn Stock: 753S501-800-R Datasheet

Current PartRFQ

BK/GDA-800MA

Eaton - Electronics DivisionIn Stock: 799BK/GDA-800MA Datasheet

Parametric EquivalentRFQ

BK1/S501-800-R

Eaton - Electronics DivisionIn Stock: 1761BK1/S501-800-R Datasheet

Parametric EquivalentRFQ

GDA-800MA

Eaton - Electronics DivisionIn Stock: 1081GDA-800MA Datasheet

Parametric EquivalentRFQ

0216.800MXP

Littelfuse Inc.In Stock: 12450216.800MXP Datasheet

DirectRFQ

0001.1003

SCHURTER Inc.In Stock: 13920001.1003 Datasheet

Parametric EquivalentRFQ

0216.800HXP

Littelfuse Inc.In Stock: 14690216.800HXP Datasheet

Parametric EquivalentRFQ

FCD-800MA

OptiFuseIn Stock: 4177FCD-800MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S501-800-R is determined by strict equivalence across the following parameters: current rating of 800 mA, AC voltage rating of 250 V, ceramic cartridge fuse type, fast-blow response characteristic, 5mm x 20mm physical package dimensions, and 1.5 kA breaking capacity at rated voltage. All substitute parts listed maintain these core electrical and mechanical specifications. Variations in melting I²t values, DC cold resistance, operating temperature ranges, and approval agency certifications do not disqualify parts from functional equivalence but are documented to support application-specific selection criteria. Parts are grouped by manufacturer to facilitate procurement decisions based on supply availability and regional compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

Eaton - Electronics Division Series (S501-800-R, BK/GDA-800MA, BK1/S501-800-R, GDA-800MA): These parts share identical electrical characteristics and melting I²t specifications. BK1/S501-800-R and BK/GDA-800MA provide the highest inventory availability (1714 and 788 units respectively) and maintain full compliance with BSI, CCC, CSA, and VDE certifications. Selection from this group is appropriate when Eaton-specific supply chain requirements or existing design validation with Eaton components is established.

Littelfuse Inc. Series (0216.800MXP, 0216.800HXP): Both Littelfuse parts maintain identical electrical specifications with melting I²t of 0.285 and operating temperature range of -55°C to 125°C. These parts carry CE, CSA, SEMKO, UL, and VDE certifications. The 0216.800HXP variant offers the highest inventory level (1368 units) among Littelfuse offerings and is suitable for applications requiring extended temperature operation.

SCHURTER Inc. (0001.1003): This part provides the highest melting I²t value (0.469) among all substitutes while maintaining the required electrical ratings. It supports operating temperatures from -55°C to 125°C and carries CCC, cURus, KC, and VDE certifications. Selection is appropriate for applications requiring specific SCHURTER component qualification or when the elevated melting I²t characteristic aligns with circuit protection requirements.

OptiFuse (FCD-800MA): The FCD-800MA offers the lowest melting I²t value (0.121) and the highest inventory availability (4157 units). It explicitly specifies 250 V DC voltage rating in addition to AC rating and operates across -55°C to 125°C. This part is suitable for applications requiring rapid response characteristics and dual AC/DC voltage specification.

Frequently Asked Questions (FAQ)

Q: Can S501-800-R be directly replaced with any of the listed substitute parts?

A: Yes. All listed parts maintain identical current rating (800 mA), AC voltage rating (250 V), fuse type (ceramic cartridge), response time (fast-blow), physical package (5mm x 20mm), and breaking capacity (1.5 kA). Direct mechanical and electrical substitution is supported across all parts listed.

Q: What is the significance of different melting I²t values among the substitutes?

A: Melting I²t represents the thermal energy required to melt the fuse element. The S501-800-R specifies 0.097, while substitutes range from 0.121 (FCD-800MA) to 0.469 (0001.1003). Higher melting I²t values result in slower thermal response to transient overcurrent conditions. Selection should align with the specific circuit protection requirements and transient tolerance of the application.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry ROHS3 compliance status or equivalent RoHS compliance designation. The S501-800-R itself is ROHS3 compliant. Compliance status is consistent across the substitution group.

Q: Which substitute part has the widest operating temperature range?

A: Littelfuse (0216.800MXP, 0216.800HXP), SCHURTER (0001.1003), and OptiFuse (FCD-800MA) all specify operating temperature ranges of -55°C to 125°C. The S501-800-R and other Eaton parts do not specify operating temperature limits. Selection of temperature-rated parts is appropriate for applications operating outside standard ambient conditions.

Q: What approval agencies are common across all substitute parts?

A: CCC and CSA certifications are present across all substitute parts. VDE certification is present in all parts except GDA-800MA. Selection based on specific regional compliance requirements should reference the approval agency table in the Parameter Comparison section.

Q: Does the 5mm x 20mm package dimension remain constant across all substitutes?

A: Yes. All substitute parts maintain the 5mm x 20mm physical package dimension and require compatible fuse holders. No mechanical redesign or holder replacement is necessary when substituting between listed parts.

Q: Which substitute part offers the highest inventory availability?

A: FCD-800MA (OptiFuse) provides the highest inventory level at 4157 units. BK1/S501-800-R (Eaton) offers 1714 units. These parts are suitable for applications requiring immediate procurement without lead time constraints.