Littelfuse 0294070.U Automotive Fuse 70A 32VDC Auto Link Equivalent & Substitute Parts

Part Overview

The Littelfuse 0294070.U is a 70A 32VDC automotive bolt mount fuse with Auto Link package configuration, part of the PAL™ 294 series. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and component replacement in automotive applications requiring 70A slow-blow fuse protection at 32V DC.

Key Parameters

Parameter	Value
Manufacturer	Littelfuse Inc.
Current Rating	70 A
Voltage Rating - DC	32 V
Fuse Type	Automotive
Mounting Type	Bolt Mount
Response Time	Slow Blow
Package / Case	Auto Link
Size / Dimension	0.898" L x 0.638" W x 0.866" H (22.81mm x 16.20mm x 22.00mm)
Color	Brown
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 0294070.U is determined by strict equivalence across the following parameters:

Current Rating: 70 A (exact match required)
Voltage Rating - DC: 32 V (exact match required)
Fuse Type: Automotive (exact match required)
Mounting Type: Bolt Mount (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: Auto Link (exact match required)
Physical Dimensions: 0.898" L x 0.638" W x 0.866" H (exact match required)
Color: Brown (exact match required)
RoHS Status: ROHS3 Compliant (minimum requirement)

All substitute parts listed below meet these criteria and are manufactured by Littelfuse Inc. Substitutes differ only in series designation (PAL™ 283, PAL™ 294, PAL™ 295) and packaging configuration (Bulk vs. standard), with no impact on electrical or mechanical performance.

Parameter Comparison

Part Number	Series	Current Rating (A)	Voltage Rating - DC (V)	Response Time	Mounting Type	Package / Case	Dimensions (mm)	Product Status	Inventory (Pcs)
0294070.U	PAL™ 294	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Obsolete	981
0283070.MXJ	PAL™ 283	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	953
0283070.MXJ-B	PAL™ 283	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	890
0294070.H	PAL™ 294	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	620
0294070.MXJ	PAL™ 294	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	922
0295070.H	PAL™ 295	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	909
0295070.MXJ	PAL™ 295	70	32	Slow Blow	Bolt Mount	Auto Link	22.81 x 16.20 x 22.00	Active	788

Engineering Selection Recommendations

For applications currently using the obsolete 0294070.U, direct substitution is supported by the following active alternatives:

PAL™ 294 Series (Same Series Family):

0294070.H: Active status, bulk packaging, 620 units in stock
0294070.MXJ: Active status, bulk packaging, 922 units in stock

PAL™ 283 Series (Cross-Series Equivalent):

0283070.MXJ: Active status, bulk packaging, 953 units in stock
0283070.MXJ-B: Active status, bulk packaging, 890 units in stock

PAL™ 295 Series (Cross-Series Equivalent):

0295070.H: Active status, bulk packaging, 909 units in stock
0295070.MXJ: Active status, bulk packaging, 788 units in stock

All substitute parts maintain ROHS3 compliance and identical electrical and mechanical specifications. Selection among active alternatives may be based on packaging configuration requirements and inventory availability. Parts designated with ".H" suffix indicate standard bulk packaging, while ".MXJ" and ".MXJ-B" designations indicate alternative packaging configurations with no impact on functional performance.

Frequently Asked Questions (FAQ)

Q: Can 0294070.H be used as a direct replacement for the obsolete 0294070.U? A: Yes. Both parts share identical electrical ratings (70A, 32VDC), response time (Slow Blow), mounting configuration (Bolt Mount), physical dimensions, and Auto Link package type. The primary difference is product status (Active vs. Obsolete) and packaging format.

Q: What is the difference between PAL™ 283, PAL™ 294, and PAL™ 295 series fuses? A: Series designation indicates internal design generation within the Littelfuse automotive fuse product line. All three series are electrically and mechanically equivalent for the 70A 32VDC Auto Link configuration specified. Series differences do not affect substitution eligibility.

Q: Does packaging suffix (.H, .MXJ, .MXJ-B) affect electrical performance? A: No. Packaging suffixes indicate distribution and quantity configurations only. All variants maintain identical electrical characteristics, voltage ratings, current ratings, and response time specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts meet ROHS3 compliance requirements, matching the original 0294070.U specification.

Q: Can I mix different series (283, 294, 295) in the same application? A: Yes, provided the application circuit design specifies 70A 32VDC slow-blow automotive fuse protection with bolt mount configuration. All listed substitutes are electrically and mechanically interchangeable for this specification.

Q: What is the significance of the Auto Link package type? A: Auto Link is a standardized automotive fuse package configuration that defines the physical form factor and mounting interface. All substitute parts use identical Auto Link packaging, ensuring mechanical compatibility with existing fuse holders and mounting hardware.

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