Littelfuse 0327015.UXS Automotive Micro Blade Fuse 15A 32VDC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0327015.UXS is a 15A 32VDC automotive micro blade fuse designed for automotive electrical protection circuits. This fuse is an active product with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and packaging specifications match the original component, enabling direct replacement in automotive fuse holder applications.

Key Parameters

Parameter	Value
Current Rating	15 A
Voltage Rating (DC)	32 V
Fuse Type	Automotive
Package / Case	Blade, Micro
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	1kA
Melting I²t	189
Operating Temperature Range	-40°C ~ 125°C
Size / Dimension	0.358" L x 0.150" W x 0.311" H (9.10mm x 3.80mm x 7.90mm)
Color	Blue
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 0327015.UXS are qualified based on the following critical parameters:

Current Rating: 15 A (exact match required)
Voltage Rating (DC): 32 V (exact match required)
Package / Case: Blade, Micro (exact match required)
Fuse Type: Automotive (exact match required)
Mounting Type: Requires Holder (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 (exact match required)
Compliance: RoHS3 Compliant, REACH Unaffected (exact match required)

All substitute parts listed below meet these criteria and are manufactured by Littelfuse Inc. Variations in series designation (MICRO2™ 327, MICRO2™, MICRO3™) do not affect electrical or mechanical compatibility within the micro blade fuse category.

Parameter Comparison

Part Number	Manufacturer	Current Rating (A)	Voltage Rating (DC)	Package / Case	Breaking Capacity @ Rated Voltage	Melting I²t	Operating Temperature	Size (mm)	RoHS Status	Inventory (Pcs)
0327015.UXS	Littelfuse Inc.	15	32 V	Blade, Micro	1kA	189	-40°C ~ 125°C	9.10 x 3.80 x 7.90	ROHS3 Compliant	1278
0327015.LXS	Littelfuse Inc.	15	32 V	Blade, Micro	1kA	189	-40°C ~ 125°C	9.10 x 3.80 x 7.90	ROHS3 Compliant	14725
0327015.YX2S	Littelfuse	15	32 V	Blade, Micro	Not specified	189	-40°C ~ 125°C	9.10 x 3.80 x 7.90	ROHS3 Compliant	3368
MIC2015.VP	Littelfuse Inc.	15	32 V	Blade, Micro	1kA	Not specified	-40°C ~ 125°C	9.10 x 3.80 x 7.90	ROHS3 Compliant	1096
MIC3015.VP	Littelfuse	15	32 V	Blade, Micro	1kA	Not specified	-40°C ~ 125°C	9.10 x 3.80 x 7.90	ROHS3 Compliant	644

Engineering Selection Recommendations

All substitute parts listed are active products with full RoHS3 compliance and REACH unaffected status, meeting automotive industry standards. Selection among equivalent parts should be based on:

Availability: 0327015.LXS offers the highest inventory level (14,725 pcs), followed by 0327015.YX2S (3,368 pcs)
Series compatibility: MICRO2™ 327 series (0327015.UXS, 0327015.LXS) and MICRO2™ series (MIC2015.VP) are established platforms; MICRO3™ series (MIC3015.VP) represents a newer generation
Electrical specifications: All parts maintain identical current, voltage, and temperature ratings
Mechanical fit: All parts share identical physical dimensions and micro blade package specifications

Frequently Asked Questions (FAQ)

Q: Can 0327015.LXS be used as a direct replacement for 0327015.UXS?

A: Yes. Both parts share identical electrical ratings (15A, 32VDC), mechanical dimensions (9.10mm x 3.80mm x 7.90mm), package type (Blade, Micro), breaking capacity (1kA), melting I²t (189), and compliance certifications (RoHS3, REACH unaffected). They are parametrically equivalent.

Q: What is the difference between MICRO2™ and MICRO3™ series fuses?

A: Series designation indicates the fuse platform generation. Both MICRO2™ and MICRO3™ series maintain identical electrical and mechanical specifications for the 15A 32VDC micro blade fuse. Selection between series is based on availability and supply chain requirements.

Q: Are all substitute parts suitable for automotive applications?

A: Yes. All listed parts are classified as automotive fuses with identical fuse type designation, operating temperature range (-40°C ~ 125°C), and compliance status. They are designed for automotive electrical protection circuits.

Q: Does DC cold resistance variation affect substitution?

A: The main part 0327015.UXS specifies 4.9 mOhms DC cold resistance, while substitute parts 0327015.LXS and 0327015.YX2S specify 0.0049 Ohms (equivalent to 4.9 mOhms). This represents the same electrical characteristic and does not affect substitution compatibility.

Q: Can these fuses be used in non-automotive applications?

A: These components are specifically classified as automotive fuses. Use in non-automotive applications requires verification against the specific circuit requirements and applicable standards for that application.

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