3SBP 200-R Equivalent & Substitute Parts

Part Overview

The 3SBP 200-R is a 200 mA, 250 V AC/DC slow-blow glass cartridge fuse manufactured by Bel Fuse Inc. in the 3AB/3AG package format (1/4" x 1-1/4" axial). This part is classified as obsolete, making equivalent substitute components necessary for ongoing system maintenance and new design implementations. Littelfuse Inc. produces direct functional equivalents within the 315 series that maintain electrical and mechanical compatibility.

Substiute Parts

3SBP 200-R

Bel Fuse Inc.In Stock: 10423SBP 200-R Datasheet

Current PartRFQ

0315.200HXP

Littelfuse Inc.In Stock: 9200315.200HXP Datasheet

DirectRFQ

0315.200MXP

LittelfuseIn Stock: 11290315.200MXP Datasheet

DirectRFQ

0315.200VXP

Littelfuse Inc.In Stock: 9080315.200VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3SBP 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)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Regulatory Compliance: CE, CSA certifications (minimum requirement)

All three Littelfuse 315 series parts (0315.200HXP, 0315.200MXP, 0315.200VXP) meet these substitution criteria. These parts are active products with current manufacturing status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The 3SBP 200-R is obsolete and no longer in active production. All three Littelfuse 315 series substitutes (0315.200HXP, 0315.200MXP, 0315.200VXP) are active products with current manufacturing status, ensuring availability for both replacement and new design applications.

All substitute parts maintain full compliance with CE, CSA, and UL certifications, meeting the regulatory requirements of the original component. ROHS3 compliance is maintained across all options.

The Littelfuse substitutes are dimensionally compatible within standard PCB and through-hole assembly tolerances. Physical dimensions vary minimally (0.003" diameter, 0.005" length) and remain within acceptable mechanical fit parameters for standard 3AG fuse holders.

Selection among the three Littelfuse options (0315.200HXP, 0315.200MXP, 0315.200VXP) is determined by packaging availability and inventory requirements, as all three are electrically and mechanically equivalent.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 315 series parts directly replace the 3SBP 200-R in existing designs?

A: Yes. The 0315.200HXP, 0315.200MXP, and 0315.200VXP are direct functional equivalents. All maintain identical current rating (200 mA), voltage rating (250 V AC), response time (Slow Blow), package format (3AB, 3AG, 1/4" x 1-1/4" axial), and operating temperature range (-55°C ~ 125°C). Physical dimensions are within standard assembly tolerances for through-hole fuse holders.

Q: What is the difference between the three Littelfuse substitute part numbers?

A: The 0315.200HXP, 0315.200MXP, and 0315.200VXP are electrically and mechanically identical. Differences are limited to internal manufacturing designations and packaging configurations. All three are active products with equivalent performance characteristics.

Q: Are regulatory certifications maintained with these substitutes?

A: Yes. All three Littelfuse substitutes carry CE, CSA, and UL certifications, meeting or exceeding the regulatory requirements of the original 3SBP 200-R (CE, CSA, cULus). ROHS3 compliance is maintained.

Q: What is the significance of the DC Cold Resistance difference?

A: The Littelfuse substitutes exhibit lower DC cold resistance (6.59 Ohms) compared to the original 3SBP 200-R (8.3 Ohms). This difference does not affect functional performance in standard fuse applications and remains within acceptable parameters for slow-blow cartridge fuses in this current and voltage class.

Q: Are there any compatibility concerns with existing PCB designs?

A: No. The substitute parts are designed for standard 3AG through-hole fuse holders. Dimensional variations (0.003" diameter, 0.005" length) are within normal manufacturing tolerances and do not require PCB or holder modifications.