BK/S500-16-R Equivalent & Substitute Parts

Part Overview

The BK/S500-16-R is a 16 A, 250 V AC/DC fast-blow glass cartridge fuse in a 5mm x 20mm package manufactured by Eaton - Electronics Division. This component is classified as obsolete, requiring identification of active equivalent alternatives for continued system support and procurement.

Substitute parts are necessary due to the obsolete status of the BK/S500-16-R series. Active equivalent fuses maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

Substiute Parts

BK/S500-16-R

Eaton - Electronics DivisionIn Stock: 1035BK/S500-16-R Datasheet

Current PartRFQ

BK/GDB-16A

Eaton - Electronics DivisionIn Stock: 1146BK/GDB-16A Datasheet

Parametric EquivalentRFQ

FSC-16A

OptiFuseIn Stock: 3697FSC-16A Datasheet

Parametric EquivalentRFQ

FSD-16A

OptiFuseIn Stock: 1495FSD-16A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/S500-16-R is determined by strict equivalence across the following parameters:

• Current Rating: 16 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 5mm x 20mm
• Mounting Type: Requires Holder
• Size / Dimension: 0.205" Dia x 0.787" L (5.20mm x 20.00mm)

All substitute parts listed maintain these specifications. Substitutes differ in manufacturer, series designation, product status (active vs. obsolete), and optional certifications or performance ratings.

Parameter Comparison

Engineering Selection Recommendations

BK/GDB-16A (Eaton - Electronics Division): This substitute maintains Eaton manufacturer continuity and is classified as active. It provides direct parametric equivalence to the BK/S500-16-R with RoHS compliance. Selection of this part preserves single-manufacturer sourcing.

FSC-16A (OptiFuse): This substitute is active and provides parametric equivalence with UL 248 approval agency certification and ROHS3 compliance. Operating temperature range is -55°C to 90°C. Breaking capacity is rated at 1 kA.

FSD-16A (OptiFuse): This substitute is active and provides parametric equivalence with IEC 60127 approval agency certification and ROHS3 compliance. Operating temperature range is -55°C to 125°C, extending the upper thermal limit. Breaking capacity is rated at 35 A with a melting I²t value of 894.7. REACH status is unaffected.

All three substitutes are active products with current inventory availability, eliminating obsolescence risk associated with the BK/S500-16-R.

Frequently Asked Questions (FAQ)

Q: Can the BK/GDB-16A directly replace the BK/S500-16-R?

A: Yes. The BK/GDB-16A maintains identical electrical specifications (16 A, 250 V AC/DC), fuse type (cartridge, glass), response time (fast blow), and mechanical package (5mm x 20mm). Both require a fuse holder for installation.

Q: What is the difference between the OptiFuse FSC-16A and FSD-16A substitutes?

A: Both maintain identical core electrical and mechanical parameters. The FSC-16A carries UL 248 certification with a 1 kA breaking capacity and -55°C to 90°C operating temperature. The FSD-16A carries IEC 60127 certification with a 35 A breaking capacity, extended operating temperature to 125°C, and a melting I²t value of 894.7.

Q: Are all substitute parts RoHS compliant?

A: The BK/GDB-16A is RoHS compliant. The FSC-16A and FSD-16A are ROHS3 compliant. The original BK/S500-16-R does not specify RoHS status.

Q: Does the 5mm x 20mm package dimension apply to all substitutes?

A: Yes. All substitute parts use the identical 5mm x 20mm cartridge package (0.205" Dia x 0.787" L), ensuring mechanical compatibility with existing fuse holders.

Q: What approval agencies certify these substitute fuses?

A: The FSC-16A carries UL 248 certification. The FSD-16A carries IEC 60127 certification. The BK/GDB-16A does not specify an approval agency in the provided data.

Q: Can these fuses be used interchangeably in the same circuit?

A: Yes, within the scope of their specified electrical parameters. All substitutes are rated for 16 A at 250 V AC/DC with fast-blow response. Differences in breaking capacity, operating temperature range, and approval certifications may influence selection based on specific application requirements.