0ABB-4000-TM Equivalent & Substitute Parts

Part Overview

The 0ABB-4000-TM is a surface mount board mount fuse manufactured by Bel Fuse Inc., rated for 4 A at 32 V DC with slow blow response characteristics. This component is packaged in the 0603 (1608 Metric) form factor and is designed for direct PCB mounting applications. The part maintains Active product status with full RoHS3 compliance and AEC-Q200 certification. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

0ABB-4000-TM

Bel Fuse Inc.In Stock: 11830ABB-4000-TM Datasheet

Current PartRFQ

SF-0603S400-2

Bourns Inc.In Stock: 6801SF-0603S400-2 Datasheet

DirectRFQ

SF-0603S400M-2

Bourns Inc.In Stock: 21446SF-0603S400M-2 Datasheet

DirectRFQ

SF-0603SP400-2

Bourns Inc.In Stock: 6527SF-0603SP400-2 Datasheet

DirectRFQ

SF-0603SP400M-2

Bourns Inc.In Stock: 13569SF-0603SP400M-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0ABB-4000-TM are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Mandatory Matching Parameters:

• Current Rating: 4 A
• Voltage Rating (DC): 32 V
• Response Time: Slow Blow
• Package / Case: 0603 (1608 Metric)
• Mounting Type: Surface Mount
• Fuse Type: Board Mount (Cartridge Style Excluded)

Allowable Variation Parameters:

• Breaking Capacity @ Rated Voltage: 35 A to 50 A
• Melting I²t: 0.326 to 2.3
• DC Cold Resistance: 0.012 to 18 Ohms
• Operating Temperature Range: -55°C to 150°C
• Approval Agency certifications

All four substitute parts from Bourns Inc. (SF-0603S400-2, SF-0603S400M-2, SF-0603SP400-2, SF-0603SP400M-2) meet the mandatory matching parameters and are therefore direct functional equivalents for the 0ABB-4000-TM.

Parameter Comparison

Engineering Selection Recommendations

All four Bourns substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original 0ABB-4000-TM component.

SF-0603S400-2: This part carries UL approval and operates within -20°C to 105°C. Selection is appropriate for applications where the operating temperature range does not exceed 105°C and UL certification is required.

SF-0603S400M-2: This variant extends the operating temperature range to -55°C to 125°C and maintains the same 4 A / 32 V DC ratings. The breaking capacity is rated at 35 A, which is lower than the original part. Selection is appropriate for extended temperature applications where the 35 A breaking capacity is sufficient.

SF-0603SP400-2: This part carries UL approval and operates within -40°C to 105°C. Selection is appropriate for applications requiring UL certification and operating temperatures between -40°C and 105°C.

SF-0603SP400M-2: This variant extends the operating temperature range to -55°C to 150°C, matching the original part's temperature specification. The melting I²t value of 2.3 is significantly higher than the original part. Selection is appropriate for applications requiring the full -55°C to 150°C operating range.

Frequently Asked Questions (FAQ)

Q: Can SF-0603S400-2 be used as a direct replacement for 0ABB-4000-TM in all applications?

A: SF-0603S400-2 is electrically compatible for 4 A / 32 V DC applications. However, its operating temperature range (-20°C to 105°C) is narrower than the original part (-55°C to 150°C). Substitution is valid only when the application operates within the -20°C to 105°C range.

Q: What is the significance of the melting I²t parameter in fuse selection?

A: Melting I²t defines the thermal energy required to melt the fuse element. The original 0ABB-4000-TM has a melting I²t of 0.6. Substitute parts range from 0.326 to 2.3. Lower values indicate faster response to overcurrent conditions, while higher values indicate slower response. Selection depends on the specific circuit protection requirements.

Q: Why does SF-0603S400M-2 have a lower breaking capacity (35 A) compared to other substitutes (50 A)?

A: Breaking capacity is the maximum current the fuse can safely interrupt at rated voltage. SF-0603S400M-2 is rated for 35 A breaking capacity, which is still sufficient for 4 A rated fuses in most applications. Verification against circuit requirements is necessary if breaking capacity is a critical design parameter.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all four substitute parts (SF-0603S400-2, SF-0603S400M-2, SF-0603SP400-2, SF-0603SP400M-2) are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity level, matching the original 0ABB-4000-TM specifications.

Q: Which substitute part best matches the original 0ABB-4000-TM operating temperature range?

A: SF-0603SP400M-2 matches the original operating temperature range of -55°C to 150°C. This part is the optimal choice for applications requiring the full temperature specification of the original component.

Q: What is the difference between SF-0603S and SF-0603SP series?

A: Both series are SinglFuse™ products from Bourns with identical 4 A / 32 V DC ratings and 0603 packaging. The SF-0603SP series variants (SF-0603SP400-2 and SF-0603SP400M-2) differ in physical dimensions and thermal characteristics compared to the SF-0603S series variants (SF-0603S400-2 and SF-0603S400M-2).

Q: Can these substitute parts be used interchangeably on the same PCB?

A: All substitute parts share the same 0603 (1608 Metric) package and surface mount footprint, enabling direct PCB layout compatibility. However, physical dimensions vary slightly between variants, and thermal performance characteristics differ. Verification of specific application requirements is necessary before interchangeable use.