Littelfuse 0239.200VXP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0239.200VXP is a 200 mA, 250 V AC/DC glass cartridge fuse with 5mm x 20mm dimensions and slow-blow response characteristics. This component is classified as Active product status and is designed for applications requiring overcurrent protection in AC and DC circuits. Substitute parts are identified based on matching electrical ratings, mechanical dimensions, response time characteristics, and approval agency certifications to ensure functional equivalence in circuit protection applications.

Substiute Parts

0239.200VXP

Littelfuse Inc.In Stock: 10750239.200VXP Datasheet

Current PartRFQ

0218.200HXP

Littelfuse Inc.In Stock: 23820218.200HXP Datasheet

Parametric EquivalentRFQ

0218.200MXP

Littelfuse Inc.In Stock: 40760218.200MXP Datasheet

Parametric EquivalentRFQ

0219.200MXAP

Littelfuse Inc.In Stock: 24440219.200MXAP Datasheet

Parametric EquivalentRFQ

0239.200HXP

Littelfuse Inc.In Stock: 16500239.200HXP Datasheet

Parametric EquivalentRFQ

0239.200MXP

Littelfuse Inc.In Stock: 21940239.200MXP Datasheet

Parametric EquivalentRFQ

0034.3110

SCHURTER Inc.In Stock: 23600034.3110 Datasheet

Parametric EquivalentRFQ

0034.5610.11

SCHURTER Inc.In Stock: 10440034.5610.11 Datasheet

Parametric EquivalentRFQ

TSD-200MA

OptiFuseIn Stock: 1766TSD-200MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0239.200VXP are qualified based on the following criteria:

Mandatory Matching Parameters:

• Current Rating: 200 mA
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Package / Case: 5mm x 20mm
• Response Time: Slow Blow
• Operating Temperature Range: -55°C ~ 125°C
• Mounting Type: Requires Holder

Acceptable Variation Parameters:

• Breaking Capacity @ Rated Voltage: 35A or higher
• Melting I²t: Within manufacturer tolerance ranges
• DC Cold Resistance: Manufacturer-specific design variations
• Approval Agency certifications: Subset or superset of original certifications

All substitute parts listed maintain identical electrical protection characteristics and physical form factor compatibility with the original part.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and are ROHS3 compliant. Selection among equivalent parts should be based on:

Littelfuse Series 239 (0239.200VXP, 0239.200HXP, 0239.200MXP): These parts share identical melting I²t values (0.165) and DC cold resistance (3.8725 Ohms), providing the closest electrical performance match. Approval agencies include CE, CSA, KC, and UL certifications.

Littelfuse Series 218 (0218.200HXP, 0218.200MXP): These parts feature higher melting I²t values (0.341) and lower DC cold resistance (1.6 Ohms), representing a different thermal response profile while maintaining the same current and voltage ratings. Approval agencies include CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE certifications.

Littelfuse Series 219XA (0219.200MXAP): This part offers enhanced breaking capacity (150A versus 35A) with melting I²t of 0.32. Approval agencies include CCC, CE, CSA, SEMKO, UL, and VDE certifications.

SCHURTER FST Series (0034.3110, 0034.5610.11): These parts provide cross-manufacturer equivalence with melting I²t of 0.256. Approval agencies include CCC, cURus, and VDE certifications.

OptiFuse TSD Series (TSD-200MA): This part offers the lowest melting I²t value (0.1628) with IEC 60127 approval agency certification.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 0239.200VXP with any of the listed parts?

A: Yes. All listed parts meet the mandatory matching parameters: 200 mA current rating, 250 V AC voltage rating, 5mm x 20mm package dimensions, slow-blow response time, and -55°C to 125°C operating temperature range. Physical form factor and holder compatibility are identical.

Q: What is the difference between the Littelfuse Series 239 and Series 218 parts?

A: Both series maintain identical electrical ratings and package dimensions. The primary difference is the melting I²t value: Series 239 parts have 0.165 I²t, while Series 218 parts have 0.341 I²t. This affects thermal response characteristics during fault conditions. Series 218 parts also feature lower DC cold resistance (1.6 Ohms versus 3.8725 Ohms).

Q: Why does the 0219.200MXAP have a higher breaking capacity (150A)?

A: The 0219.200MXAP is designed for applications requiring higher fault current interruption capability. Despite the higher breaking capacity, it maintains the same 200 mA current rating, 250 V voltage rating, and 5mm x 20mm package dimensions as the original part.

Q: Are there approval agency differences between substitute parts?

A: Yes. The original 0239.200VXP carries CE, CSA, KC, and UL certifications. Substitute parts may have different certification sets. Series 218 and 219XA parts include additional certifications (CCC, K-MARK, SEMKO, VDE). SCHURTER parts carry cURus and VDE certifications. OptiFuse TSD-200MA carries IEC 60127 certification. Verify that the selected substitute meets your application's specific approval requirements.

Q: Can I use the TSD-200MA from OptiFuse as a direct replacement?

A: Yes. The TSD-200MA meets all mandatory matching parameters and maintains the same 5mm x 20mm physical form factor. The melting I²t value (0.1628) is the lowest among all listed substitutes, resulting in faster thermal response. Confirm that your application's thermal protection requirements are compatible with this characteristic.

Q: What should I consider when selecting between multiple equivalent parts?

A: Consider inventory availability, approval agency certifications required by your application, melting I²t thermal response characteristics, and DC cold resistance specifications. All parts are ROHS3 compliant and maintain identical current, voltage, and package specifications.