BK/ATM-5 Equivalent & Substitute Parts

Part Overview

The BK/ATM-5 is a 5A automotive blade fuse rated for 32V DC operation, manufactured by Eaton - Bussmann Electrical Division. This miniature blade fuse is designed for automotive applications requiring fast-blow response characteristics and is actively stocked with 774 units available. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical form factors, and operational parameters to ensure direct circuit compatibility.

Key Parameters

Parameter	BK/ATM-5 Specification
Current Rating	5 A
Voltage Rating - DC	32 V
Fuse Type	Automotive
Response Time	Fast Blow
Package / Case	Blade, Miniature
Breaking Capacity @ Rated Voltage	1 kA
Mounting Type	Requires Holder
Size / Dimension	0.430" L x 0.150" W x 0.347" H (10.92mm x 3.81mm x 8.81mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BK/ATM-5 are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents match all critical parameters: 5A current rating, 32V DC voltage rating, fast-blow response, miniature blade package form factor, and 1 kA breaking capacity. These parts are interchangeable without circuit modification.

Similar Alternatives share the same current rating (5A) and voltage rating (32V DC) but differ in package form factor (Micro blade instead of Miniature blade) or voltage rating (58V DC instead of 32V DC). These require mechanical compatibility verification with the fuse holder before substitution.

Critical parameters determining substitutability:

Current Rating: 5 A (mandatory match)
Voltage Rating - DC: 32 V (mandatory match for direct equivalents)
Package / Case: Blade, Miniature (mandatory match for direct equivalents)
Response Time: Fast Blow (required for circuit protection characteristics)
Breaking Capacity: 1 kA (required for fault protection)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage Rating - DC (V)	Package / Case	Response Time	Breaking Capacity @ Rated Voltage	Size / Dimension (mm)	Product Status	Inventory (Pcs)
BK/ATM-5	Eaton - Bussmann Electrical Division	5	32	Blade, Miniature	Fast Blow	1 kA	10.92 x 3.81 x 8.81	Active	774
0297005.L	Littelfuse Inc.	5	32	Blade, Miniature	Fast Blow	1 kA	10.90 x 3.80 x 8.80	Active	3342
0297005.U	Littelfuse Inc.	5	32	Blade, Miniature	Fast Blow	1 kA	10.90 x 3.80 x 8.80	Active	2893
0297005.WXNV	Littelfuse	5	32	Blade, Miniature	Fast Blow	1 kA	10.90 x 3.80 x 8.80	Active	45282
0MIN005.V	Littelfuse Inc.	5	32	Blade, Miniature	Fast Blow	—	10.90 x 3.80 x 8.80	Active	1164
0MIN005.VP	Littelfuse Inc.	5	32	Blade, Miniature	Fast Blow	—	10.90 x 3.80 x 8.80	Active	956
0997005.WXN	Littelfuse Inc.	5	58	Blade, Miniature	Fast Blow	1 kA	10.90 x 3.80 x 8.80	Active	5495
0327005.YX2S	Littelfuse Inc.	5	32	Blade, Micro	—	—	9.10 x 3.80 x 7.90	Active	3910
0337005.PX2S	Littelfuse Inc.	5	32	Blade, Micro	—	—	14.40 x 4.20 x 10.60	Active	1489
0MIN005.HXGLO	Littelfuse Inc.	5	32	Blade, Miniature	Fast Blow	—	10.90 x 3.80 x 8.80	Active	878

Engineering Selection Recommendations

Direct Substitutes (Interchangeable):

0297005.L, 0297005.U, 0297005.WXNV: These Littelfuse MINI® 297 series fuses provide complete electrical and mechanical equivalence to the BK/ATM-5. All three maintain 5A current rating, 32V DC voltage rating, miniature blade package, fast-blow response, and 1 kA breaking capacity. Dimensional tolerances are within acceptable limits (±0.01" variation). All are ROHS3 compliant and actively stocked.
0MIN005.V, 0MIN005.VP, 0MIN005.HXGLO: These Littelfuse MINI® series fuses match all critical electrical parameters and mechanical form factor. While breaking capacity data is not provided for these variants, they maintain identical current, voltage, package, and response characteristics. All are ROHS3 compliant and actively stocked.

Conditional Substitutes (Verify Holder Compatibility):

0997005.WXN: This Littelfuse MINI® 997 series fuse is rated for 58V DC instead of 32V DC. While mechanically compatible with miniature blade holders and electrically suitable for 32V DC circuits (higher voltage rating provides margin), circuit design must confirm that the 58V rating does not conflict with application requirements.

Similar Alternatives (Form Factor Change Required):

0327005.YX2S, 0337005.PX2S: These Littelfuse MICRO2™ series fuses maintain 5A current and 32V DC voltage ratings but use Micro blade package form factor instead of Miniature. These require mechanical compatibility verification with the fuse holder. Dimensional differences preclude direct physical substitution without holder modification.

All recommended substitutes are actively stocked, ROHS3 compliant, and manufactured by established automotive fuse suppliers.

Frequently Asked Questions (FAQ)

Q: Can I substitute a 0297005.L for the BK/ATM-5 without any modifications? A: Yes. The 0297005.L matches all critical electrical parameters (5A, 32V DC, fast-blow) and mechanical specifications (miniature blade package). Dimensional variation is within acceptable tolerance (±0.01"). No circuit or holder modifications are required.

Q: What is the difference between the 0MIN005.V and 0297005.L substitutes? A: Both are 5A, 32V DC, miniature blade fuses with fast-blow response. The primary difference is manufacturer series designation (MINI® vs. MINI® 297). Electrical performance and mechanical compatibility are equivalent. Selection may be based on inventory availability or supplier preference.

Q: Can I use the 0997005.WXN (58V DC rated) in place of the BK/ATM-5 (32V DC rated)? A: The 0997005.WXN is mechanically compatible with miniature blade holders and electrically suitable for 32V DC circuits due to its higher voltage rating. However, verify that the 58V rating does not conflict with circuit design specifications or application requirements before substitution.

Q: Why are the MICRO2™ series fuses (0327005.YX2S, 0337005.PX2S) listed as similar alternatives rather than direct substitutes? A: These fuses use Micro blade package form factor instead of Miniature blade. Physical dimensions differ significantly, preventing direct insertion into miniature blade holders. Mechanical compatibility with the fuse holder must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant like the BK/ATM-5? A: Yes. All direct and conditional substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the BK/ATM-5.

Q: What does "fast-blow" response mean for these fuses? A: Fast-blow fuses interrupt circuit current rapidly when rated current is exceeded, providing immediate protection against overcurrent conditions. This response characteristic is consistent across all recommended substitutes and the original BK/ATM-5.

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