Littelfuse 0232005.MXF22P Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0232005.MXF22P is a 5A 250VAC glass cartridge fuse in 5mm x 20mm form factor, designed for circuit protection in AC and DC applications. This Active product requires a fuse holder for installation and is RoHS3 compliant with CE, KC, and PSE approvals. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional performance characteristics to ensure direct interchangeability in protected circuits.

Substiute Parts

0232005.MXF22P

Littelfuse Inc.In Stock: 10360232005.MXF22P Datasheet

Current PartRFQ

0232005.MXP

Littelfuse Inc.In Stock: 14450232005.MXP Datasheet

Parametric EquivalentRFQ

MSC-5A

OptiFuseIn Stock: 5260MSC-5A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0232005.MXF22P are grouped based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Current Rating: 5 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Medium Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Mounting Type: Requires Holder (exact match required)

All identified substitutes meet these criteria and are therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

0232005.MXP (Littelfuse): Direct equivalent from the same manufacturer and series (232). Identical electrical and mechanical specifications with identical melting I²t value (56.72). Recommended as primary substitute when 0232005.MXF22P is unavailable. Higher inventory availability (1343 pcs) supports supply chain continuity. Maintains identical approval certifications (CE, KC, PSE).

MSC-5A (OptiFuse): Parametric equivalent meeting all critical electrical and mechanical requirements. Differs in melting I²t (51.13 vs. 56.72), indicating slightly faster response characteristics within the Medium Blow classification. Holds different approval certifications (cULus, UL 248) suitable for applications requiring these standards. Highest inventory availability (5195 pcs) provides supply flexibility. Suitable for applications where OptiFuse certification is acceptable and faster response time is compatible with circuit design.

All three parts are Active products with RoHS3 compliance and MSL 1 rating, ensuring environmental and regulatory compatibility.

Frequently Asked Questions (FAQ)

Q: Can 0232005.MXP be used as a direct replacement for 0232005.MXF22P? A: Yes. Both parts are from Littelfuse Series 232 with identical current rating (5A), voltage rating (250V AC), package dimensions (5mm x 20mm), response time (Medium Blow), breaking capacity (100A), and melting I²t (56.72). They are electrically and mechanically interchangeable.

Q: What is the difference between the Littelfuse and OptiFuse substitutes? A: The primary difference is melting I²t: Littelfuse parts (56.72) versus OptiFuse MSC-5A (51.13). This indicates OptiFuse provides slightly faster response within the Medium Blow classification. Approval certifications also differ: Littelfuse holds CE, KC, PSE; OptiFuse holds cULus, UL 248. All other electrical and mechanical parameters are identical.

Q: Does the difference in melting I²t affect compatibility? A: The melting I²t difference (56.72 vs. 51.13) reflects response time variation within the Medium Blow category. Both values meet the 100A breaking capacity requirement at 250V. Compatibility depends on circuit design tolerance for response time. Verify with circuit design specifications if response time is a critical parameter.

Q: Are all three parts RoHS3 compliant? A: Yes. All three parts (0232005.MXF22P, 0232005.MXP, and MSC-5A) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What holder type is required for these fuses? A: All three parts require a 5mm x 20mm fuse holder. Verify holder compatibility with your circuit board or equipment design before installation.

Q: Which part should I select if multiple substitutes are available? A: Selection depends on approval certifications required by your application and supply availability. For CE, KC, PSE compliance, use Littelfuse parts (0232005.MXF22P or 0232005.MXP). For cULus, UL 248 compliance, use OptiFuse MSC-5A. All parts meet identical electrical and mechanical requirements.