Littelfuse 169.5802 Automotive Fuse 80A 32VDC Blade Equivalent & Substitute Parts

Part Overview

The Littelfuse 169.5802 is an 80A 32VDC automotive blade fuse with slow-blow response characteristics, designed for automotive electrical protection applications requiring a blade-type holder. This part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing system maintenance and new design implementations. The substitute parts listed maintain identical electrical and mechanical specifications while offering current product availability and active manufacturer support.

Substiute Parts

169.5802

LittelfuseIn Stock: 849169.5802 Datasheet

Current PartRFQ

0299080.ZXNV

Littelfuse Inc.In Stock: 121820299080.ZXNV Datasheet

DirectRFQ

0299080.ZXT

Littelfuse Inc.In Stock: 11230299080.ZXT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 169.5802 is determined by strict equivalence across the following parameters:

• Current Rating: 80 A (exact match required)
• Voltage Rating (DC): 32 V (exact match required)
• Package / Case: Blade, Max (exact match required)
• Fuse Type: Automotive (exact match required)
• Response Time: Slow Blow (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 1kA (exact match required)

The substitute parts 0299080.ZXNV and 0299080.ZXT meet all mandatory electrical and mechanical parameters. Both are manufactured by Littelfuse Inc. and carry active product status with current inventory availability.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts 0299080.ZXNV and 0299080.ZXT are active products manufactured by Littelfuse Inc. and maintain full ROHS3 compliance. The primary distinction between the two substitutes is approval agency certification: 0299080.ZXT carries UR approval, while 0299080.ZXNV does not list specific approval agency designation. Both parts are dimensionally compatible with blade-type fuse holders designed for Max-size automotive fuses and maintain the required 1kA breaking capacity at 32VDC.

Selection between the two active substitutes should be based on specific application approval requirements and holder compatibility verification.

Frequently Asked Questions (FAQ)

Q: Can 0299080.ZXNV and 0299080.ZXT be used interchangeably with 169.5802?

A: Both parts meet the mandatory electrical parameters (80A, 32VDC, Slow Blow, Blade Max, 1kA breaking capacity) and are mechanically compatible with automotive blade fuse holders designed for Max-size fuses. Dimensional variations are within acceptable tolerances for standard holder applications.

Q: What is the significance of the different DC Cold Resistance values?

A: DC Cold Resistance values (0.0009Ω, 0.00054Ω, and 0.54Ω) are provided specifications. Selection should be based on application requirements and holder compatibility rather than resistance variance alone.

Q: Does the color difference between 0299080.ZXNV (Clear) and 0299080.ZXT (White) affect functionality?

A: Color is a visual identifier only and does not affect electrical or mechanical performance. Selection may be based on application documentation or holder design preferences.

Q: Why is 0299080.ZXT listed with UR approval while 0299080.ZXNV is not?

A: Approval agency certifications are application-specific. If UR approval is required for your application, 0299080.ZXT is the appropriate selection. Otherwise, both parts meet ROHS3 compliance requirements.

Q: Are the dimensional differences between parts significant?

A: All three parts are classified as Blade, Max package type. Dimensional variations (approximately 0.5mm across length and width) are within standard manufacturing tolerances for automotive blade fuses and are compatible with standard Max-size fuse holders.