0474.600MAT1L Equivalent & Substitute Parts

Part Overview

The 0474.600MAT1L is a 500 mA, 125 V AC/DC board mount axial fuse manufactured by Littelfuse Inc. as part of the PICO® II 473 series. This slow blow fuse is designed for through-hole mounting applications requiring reliable overcurrent protection in industrial and commercial electronics. The part is currently active in production with full inventory availability. Substitute parts are identified to support procurement flexibility, design revisions, and supply chain continuity.

Substiute Parts

0473.500MAT1L

Littelfuse Inc.In Stock: 11150473.500MAT1L Datasheet

Current PartRFQ

0473.500HAT1L

Littelfuse Inc.In Stock: 8280473.500HAT1L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 0474.600HAT1L is a parametric equivalent to the 0474.600MAT1L. Substitution is valid based on identical electrical and mechanical specifications across all critical parameters:

• Current Rating: 500 mA (identical)
• Voltage Rating: 125 V AC / 125 V DC (identical)
• Response Time: Slow Blow (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Axial (identical)
• Breaking Capacity: 50 A (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Physical Dimensions: 0.135" Dia x 0.280" L (identical)
• DC Cold Resistance: 1.13 Ohms (identical)
• Melting I²t: 0.21 (identical)
• Series: PICO® II 473 (identical)
• Compliance: ROHS3 Compliant, CSA/UR Approved (identical)

Both parts are manufactured by Littelfuse Inc. and maintain active product status. The difference between the two part numbers reflects internal manufacturing or packaging variations that do not affect electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the 0474.600MAT1L and 0474.600HAT1L are suitable for direct substitution in applications requiring 500 mA, 125 V AC/DC board mount axial fuses. Selection between the two parts should be based on:

• Inventory availability and lead time requirements
• Procurement source and pricing
• PCB assembly scheduling and component allocation

Both parts carry identical regulatory approvals (CSA, UR) and maintain ROHS3 compliance, ensuring compatibility with environmental and safety standards. Both are active products from Littelfuse Inc., supporting long-term supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can 0474.600HAT1L be used as a direct replacement for 0474.600MAT1L?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including current rating, voltage rating, response time, physical dimensions, and thermal characteristics. No circuit modifications or PCB layout changes are required.

Q: What is the difference between the two part numbers?

A: The part number suffix difference (MAT1L vs. HAT1L) reflects internal manufacturing or packaging variations within Littelfuse Inc.'s production process. These variations do not affect electrical performance, mechanical fit, or functional characteristics.

Q: Are both parts certified to the same standards?

A: Yes. Both 0474.600MAT1L and 0474.600HAT1L carry identical approvals from CSA and UR, and both are ROHS3 compliant. They meet the same regulatory and environmental requirements.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. Both parts are rated for 125 V AC and 125 V DC operation, making them suitable for dual-voltage applications within the specified voltage range.

Q: What is the operating temperature range for these fuses?

A: Both parts operate reliably across -55°C to 125°C. This range covers industrial and commercial temperature environments.

Q: Are these fuses suitable for through-hole PCB assembly?

A: Yes. Both parts are designed for through-hole mounting with axial lead configuration, compatible with standard PCB assembly processes and wave soldering.

Q: What does "Slow Blow" response time mean?

A: Slow Blow indicates that the fuse is designed to tolerate temporary inrush currents without nuisance tripping, while still providing protection against sustained overcurrent conditions. This characteristic is identical in both parts.