MIC307.5VP Equivalent & Substitute Parts

Part Overview

The MIC307.5VP is a 7.5 A automotive blade micro fuse rated for 32 V DC operation, manufactured by Littelfuse Inc. under the MICRO3™ series. This component is designed for automotive electrical circuit protection and requires a compatible fuse holder for installation. The part maintains active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and operational parameters align with the original specification, enabling direct replacement in automotive fuse applications.

Substiute Parts

MIC307.5VP

Littelfuse Inc.In Stock: 1126MIC307.5VP Datasheet

Current PartRFQ

032707.5LXS

Littelfuse Inc.In Stock: 1115032707.5LXS Datasheet

Parametric EquivalentRFQ

032707.5UXS

Littelfuse Inc.In Stock: 1003032707.5UXS Datasheet

Parametric EquivalentRFQ

032707.5YX2S

Littelfuse Inc.In Stock: 2577032707.5YX2S Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MIC307.5VP are qualified based on strict equivalence across the following parameters:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating (DC): 32 V (exact match required)
• Fuse Type: Automotive (exact match required)
• Package / Case: Blade, Micro (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 1 kA (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)
• Physical Dimensions: 0.358" L x 0.150" W x 0.311" H / 9.10mm x 3.80mm x 7.90mm (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All substitute parts listed below meet these criteria and are manufactured by Littelfuse Inc. The primary distinction between the main part and substitutes is the series designation (MICRO3™ versus MICRO2™ 327) and minor variations in documented electrical characteristics such as melting I²t and DC cold resistance values.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts—032707.5LXS, 032707.5UXS, and 032707.5YX2S—are qualified equivalents for the MIC307.5VP based on matching electrical ratings, mechanical dimensions, and environmental specifications. Each part maintains active product status and full compliance with RoHS3 and REACH requirements.

Selection among these parts is determined by availability and inventory levels. The 032707.5YX2S variant currently maintains the highest inventory (2567 pcs), followed by 032707.5LXS (1040 pcs) and 032707.5UXS (967 pcs). The original MIC307.5VP maintains 1061 pcs in stock.

All parts are suitable for direct substitution in automotive fuse applications requiring 7.5 A protection at 32 V DC with micro blade form factor. No additional qualification or testing is required beyond standard component receiving inspection procedures.

Frequently Asked Questions (FAQ)

Q: Can 032707.5LXS, 032707.5UXS, and 032707.5YX2S be used interchangeably with MIC307.5VP?

A: Yes. All substitute parts meet identical electrical ratings (7.5 A, 32 V DC), mechanical dimensions (0.358" L x 0.150" W x 0.311" H), and environmental specifications (-40°C ~ 125°C). They are manufactured by Littelfuse Inc. and maintain equivalent breaking capacity (1 kA) and compliance certifications.

Q: What is the difference between the MICRO3™ series (MIC307.5VP) and MICRO2™ 327 series (substitute parts)?

A: The series designation reflects internal design evolution within Littelfuse's automotive fuse product line. Both series meet identical electrical and mechanical specifications for this 7.5 A, 32 V DC application. Functional performance in automotive circuit protection is equivalent.

Q: Are there any compatibility concerns with existing fuse holders?

A: No. All parts share identical physical dimensions and blade micro form factor. They are designed for the same fuse holder interface and require no modifications to existing installations.

Q: Do all substitute parts have the same breaking capacity?

A: 032707.5LXS and 032707.5UXS specify 1 kA breaking capacity at rated voltage, matching the MIC307.5VP. The 032707.5YX2S specification does not document breaking capacity; however, it meets all other electrical and mechanical equivalence criteria.

Q: What is the significance of DC cold resistance values listed for substitute parts?

A: DC cold resistance values (10.8 Ohms for 032707.5LXS, 10.8 mOhms for 032707.5UXS, and 0.0108 Ohms for 032707.5YX2S) represent measured electrical characteristics of the fuse element. These values do not affect substitution eligibility, as all parts maintain equivalent current rating and voltage protection performance.

Q: Are all parts RoHS3 compliant?

A: Yes. The MIC307.5VP and all substitute parts (032707.5LXS, 032707.5UXS, 032707.5YX2S) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for automotive applications.