Equivalent & Substitute Parts for S501-8-R

Part Overview

The Eaton S501-8-R is an 8 A, 250 V AC/DC ceramic cartridge fuse with a 5mm x 20mm form factor and fast-blow response time. This component is designed for circuit protection in applications requiring reliable overcurrent interruption at rated voltage. The part is Active in product status and complies with multiple international safety standards including BSI, CSA, cULus, IMQ, SEMKO, and VDE. Substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and approval certifications to ensure direct functional equivalence in circuit protection applications.

Substiute Parts

S501-8-R

Eaton - Electronics DivisionIn Stock: 1094S501-8-R Datasheet

Current PartRFQ

BK/S501-8-R

Eaton - Electronics DivisionIn Stock: 805BK/S501-8-R Datasheet

Parametric EquivalentRFQ

BK1/S501-8-R

Eaton - Electronics DivisionIn Stock: 2113BK1/S501-8-R Datasheet

Parametric EquivalentRFQ

0216008.MXP

Littelfuse Inc.In Stock: 24120216008.MXP Datasheet

DirectRFQ

0001.1013

SCHURTER Inc.In Stock: 43750001.1013 Datasheet

Parametric EquivalentRFQ

FCD-8A

OptiFuseIn Stock: 5180FCD-8A Datasheet

Parametric EquivalentRFQ

VUC UBM 8A 250V (PF)

ConquerIn Stock: 2080VUC UBM 8A 250V (PF) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S501-8-R are classified based on strict parametric equivalence across the following criteria:

Electrical Parameters: Current rating of 8 A, AC voltage rating of 250 V, fast-blow response time, and breaking capacity of 1.5 kA at rated voltage.

Mechanical Parameters: 5mm x 20mm ceramic cartridge form factor with holder-based mounting configuration.

Compliance Parameters: Active product status with recognized international safety certifications (BSI, CSA, cULus, IMQ, SEMKO, VDE, or equivalent regional standards).

Material & Environmental: Ceramic construction, RoHS3 compliance, and operating temperature range where specified.

All substitute parts listed maintain these core parameters, enabling direct replacement in circuit protection applications without modification to holder hardware or circuit design.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and comply with international safety standards appropriate for ceramic cartridge fuse applications. Selection among equivalent parts should be based on:

Certification Alignment: The S501-8-R carries BSI, CSA, cULus, IMQ, SEMKO, and VDE approvals. Substitute parts carry equivalent regional certifications (CE, CSA, KC, PSE, SEMKO, TUV, UR, cURus, IEC 60127, CCC, UL, VDE) suitable for corresponding market requirements.

Inventory Availability: BK1/S501-8-R (2063 pcs), 0216008.MXP (2382 pcs), 0001.1013 (4319 pcs), and FCD-8A (5147 pcs) offer higher stock levels compared to the main part (990 pcs).

DC Cold Resistance: Parts with specified DC cold resistance values (S501-8-R: 0.009 Ohms, 0216008.MXP: 0.0123 Ohms, VUC UBM 8A 250V (PF): 0.0106 Ohms) demonstrate consistent electrical characteristics within acceptable tolerance ranges for fast-blow ceramic fuses.

Operating Temperature Range: Substitute parts from Littelfuse, SCHURTER, OptiFuse, and Conquer specify operating temperature ranges of -55°C to 125°C, providing extended environmental performance compared to the main part where operating temperature is not specified.

Frequently Asked Questions (FAQ)

Q: Can BK/S501-8-R and BK1/S501-8-R be used interchangeably with S501-8-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division within the S501 series and maintain identical electrical ratings (8 A, 250 V AC), ceramic cartridge construction, 5mm x 20mm form factor, fast-blow response, and 1.5 kA breaking capacity. Both are Active products with RoHS compliance.

**Q: What is the difference between Eaton S501 variants and cross-manufacturer substitutes?

A: Eaton S501 variants (S501-8-R, BK/S501-8-R, BK1/S501-8-R) are from the same manufacturer and series. Cross-manufacturer substitutes (Littelfuse 0216008.MXP, SCHURTER 0001.1013, OptiFuse FCD-8A, Conquer VUC UBM 8A 250V) are functionally equivalent but carry different certification bodies and may have different melting I²t characteristics and operating temperature specifications.

Q: Are all substitute parts compatible with existing S501-8-R fuse holders?

A: Yes. All substitute parts maintain the 5mm x 20mm ceramic cartridge form factor and holder-based mounting configuration, ensuring mechanical compatibility with existing S501-8-R fuse holder hardware.

Q: How do melting I²t values affect fuse selection?

A: Melting I²t is provided for cross-manufacturer parts (0216008.MXP: 64.315, 0001.1013: 81.9, FCD-8A: 102.2, VUC UBM 8A 250V (PF): 91.5381) and indicates thermal energy dissipation characteristics. All parts maintain the same 8 A current rating and 1.5 kA breaking capacity, ensuring equivalent circuit protection performance.

Q: Which substitute offers the highest inventory availability?

A: OptiFuse FCD-8A provides the highest stock level at 5147 pieces, followed by SCHURTER 0001.1013 at 4319 pieces.

Q: Do all substitute parts meet the same international safety standards as S501-8-R?

A: All substitute parts carry Active product status with recognized international certifications. The S501-8-R carries BSI, CSA, cULus, IMQ, SEMKO, and VDE approvals. Substitute parts carry equivalent certifications including CE, CSA, KC, PSE, SEMKO, TUV, UR, cURus, IEC 60127, CCC, and UL, appropriate for their respective markets and applications.