Equivalent & Substitute Parts for 3SB 200-R

Part Overview

The 3SB 200-R is a 200 mA, 250 V AC/DC glass cartridge fuse manufactured by Bel Fuse Inc. This component is classified as obsolete, requiring identification of active equivalent alternatives for continued system support and procurement. The fuse is designed for 3AB and 3AG holder compatibility with a 1/4" x 1-1/4" form factor and slow-blow response characteristics.

Substiute Parts

3SB 200-R

Bel Fuse Inc.In Stock: 9023SB 200-R Datasheet

Current PartRFQ

0313.200HXP

Littelfuse Inc.In Stock: 11350313.200HXP Datasheet

DirectRFQ

0313.200MXP

Littelfuse Inc.In Stock: 15020313.200MXP Datasheet

DirectRFQ

0313.200VXP

Littelfuse Inc.In Stock: 8140313.200VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3SB 200-R is determined by strict equivalence across the following parameters:

• Current Rating: 200 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All three substitute parts—0313.200HXP, 0313.200MXP, and 0313.200VXP—manufactured by Littelfuse Inc., meet these criteria and are classified as active products.

Parameter Comparison

Engineering Selection Recommendations

The 3SB 200-R is obsolete and no longer in active production. All three Littelfuse substitute parts—0313.200HXP, 0313.200MXP, and 0313.200VXP—are active products with identical electrical and mechanical specifications. Selection among these three substitutes may be based on inventory availability and packaging preferences, as all meet the required functional and compliance criteria.

The Littelfuse substitutes carry CE, CSA, and UL certifications, providing regulatory coverage for most industrial applications. The original 3SB 200-R included PSE certification; applications requiring PSE compliance should be evaluated against the substitute certifications.

Frequently Asked Questions (FAQ)

Q: Can 0313.200HXP, 0313.200MXP, and 0313.200VXP be used interchangeably with the 3SB 200-R?

A: Yes. All three Littelfuse parts meet the electrical and mechanical specifications of the 3SB 200-R, including current rating, voltage rating, fuse type, response time, package dimensions, and operating temperature range.

Q: What is the difference between the three Littelfuse substitute parts?

A: The three parts are functionally equivalent. Differences exist only in packaging designation (HXP, MXP, VXP variants) and do not affect electrical or mechanical performance.

Q: Are there dimensional differences between the 3SB 200-R and the substitutes?

A: The substitute parts have a length of 1.250" (31.75mm) compared to the original 1.252" (31.80mm). This 0.002" difference is within standard mechanical tolerances for cartridge fuse holders and does not affect compatibility.

Q: What certifications do the substitute parts carry?

A: The Littelfuse substitutes carry CE, CSA, and UL certifications. The original 3SB 200-R included PSE certification; applications requiring PSE compliance should be evaluated separately.

Q: Are the substitute parts RoHS compliant?

A: Yes. All substitute parts are ROHS3 compliant, matching the compliance status of the original 3SB 200-R.