Littelfuse 0326.062H Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0326.062H is a 62 mA, 250 V AC/DC ceramic cartridge fuse with slow-blow response characteristics, designed for 3AB and 3AG holder compatibility. This fuse is classified as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and component procurement. Substitute parts must maintain identical electrical ratings and mechanical form factors to ensure direct interchangeability within existing fuse holder assemblies.

Substiute Parts

0326.062H

Littelfuse Inc.In Stock: 11350326.062H Datasheet

Current PartRFQ

0326.062HXP

LittelfuseIn Stock: 9970326.062HXP Datasheet

DirectRFQ

0326.062MXP

Littelfuse Inc.In Stock: 11480326.062MXP Datasheet

Parametric EquivalentRFQ

0326.062VXP

Littelfuse Inc.In Stock: 11150326.062VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0326.062H are qualified based on the following critical parameters that determine functional interchangeability:

• Current Rating: 62 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)
• Melting I²t: 0.0276 (exact match required)
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm) (exact match required)

All substitute parts listed below meet these criteria and are manufactured by Littelfuse Inc. within the 326 series. The primary distinction between the main part and substitutes is product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (0326.062HXP, 0326.062MXP, and 0326.062VXP) are functionally equivalent to the obsolete 0326.062H based on electrical and mechanical parameters. The substitute parts offer the following advantages:

• Active Product Status: All substitutes are currently in active production, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: All substitutes are ROHS3 compliant and CE approved, meeting current environmental and safety standards.
• Operating Temperature Range: Substitutes specify an operating temperature range of -55°C to 125°C, providing defined thermal performance boundaries.
• REACH Compliance: All substitutes are REACH unaffected, confirming compliance with chemical substance regulations.

Selection among the three substitute parts may be based on inventory availability or specific procurement requirements, as all three maintain identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can the 0326.062HXP, 0326.062MXP, or 0326.062VXP be used as direct replacements for the 0326.062H?

A: Yes. All three substitute parts maintain identical current ratings (62 mA), voltage ratings (250 V AC), fuse type (ceramic cartridge), response time (slow blow), package dimensions (3AB, 3AG, 1/4" x 1-1/4"), breaking capacity (100 A), and melting I²t (0.0276). They are mechanically and electrically interchangeable within existing 3AB and 3AG fuse holder assemblies.

Q: What is the difference between the 0326.062H and its substitutes?

A: The primary differences are product status and compliance certifications. The 0326.062H is obsolete and lacks specified operating temperature and approval agency information. The substitutes are active products with CE approval, ROHS3 compliance, REACH unaffected status, and a defined operating temperature range of -55°C to 125°C. DC cold resistance values are marginally higher in substitutes (91.7 Ohms vs. 91 Ohms), which is within acceptable tolerance for ceramic fuse cartridges.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. All substitute parts are designed for the same 3AB and 3AG holder types and maintain identical dimensional specifications (0.250" Dia x 1.250" L). They will function identically in circuits designed for the 0326.062H.

Q: Which substitute part should be selected?

A: All three substitutes (0326.062HXP, 0326.062MXP, and 0326.062VXP) are equivalent. Selection may be based on inventory availability, packaging preferences, or procurement lead times, as all three meet identical electrical and mechanical requirements.

Q: What does the MSL rating of 1 (Unlimited) indicate?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This applies to all parts in this comparison.