Equivalent & Substitute Parts for 0ABB-5000-TM

Part Overview

The 0ABB-5000-TM is a surface mount board mount fuse manufactured by Bel Fuse Inc., rated for 5 A at 32 V DC with slow blow response characteristics. The device is packaged in 0603 (1608 Metric) form factor and is designed for circuit protection in surface mount applications. This part is active in production status with AEC-Q200 and cURus approval certifications.

Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification. Alternative sources provide equivalent protection performance while maintaining compatibility with the same PCB footprint and circuit requirements.

Key Parameters

Parameter	Value
Current Rating	5 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)
Breaking Capacity @ Rated Voltage	50 A
Operating Temperature Range	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 0ABB-5000-TM is determined by the following critical parameters:

Primary Matching Criteria:

Current Rating: 5 A (exact match required)
Voltage Rating (DC): 32 V (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Response Time: Slow Blow (exact match required)
Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Factors:

Breaking Capacity at Rated Voltage: 50 A or higher
RoHS3 Compliance
Moisture Sensitivity Level: 1 (Unlimited)
Board Mount fuse type classification

Substitute parts are grouped into two categories based on operating temperature range and melting I²t characteristics:

Group 1 - Standard Temperature Range Substitutes: SF-0603S500-2 and SF-0603SP500-2 operate within -20°C to 105°C with lower melting I²t values (0.622).

Group 2 - Extended Temperature Range Substitutes: SF-0603S500M-2 and SF-0603SP500M-2 operate within -55°C to 125°C or -55°C to 150°C with higher melting I²t values (0.8 to 3.2).

Group 3 - Elevated Voltage Rating Substitute: SF-0603SA500M-2 is rated for 35 V DC (exceeds 32 V requirement) with extended temperature range -55°C to 150°C.

Parameter Comparison

Parameter	0ABB-5000-TM (Bel Fuse)	SF-0603S500-2 (Bourns)	SF-0603S500M-2 (Bourns)	SF-0603SA500M-2 (Bourns)	SF-0603SP500-2 (Bourns)	SF-0603SP500M-2 (Bourns)
Current Rating (Amps)	5 A	5 A	5 A	5 A	5 A	5 A
Voltage Rating - DC	32 V	32 V	32 V	35 V	32 V	32 V
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Fuse Type	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)
Breaking Capacity @ Rated Voltage	50 A	50 A	35 A	50 A	50 A	50 A
Melting I²t	1.9	0.622	0.8	0.889	0.622	3.2
Operating Temperature	-55°C ~ 150°C	-20°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 150°C	-40°C ~ 105°C	-55°C ~ 150°C
DC Cold Resistance	14 Ohms	0.009 Ohms	0.013 Ohms	Not specified	Not specified	0.013 Ohms
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Approval Agency	AEC-Q200, cURus	UL	-	cUL	UL	-

Engineering Selection Recommendations

For applications requiring full AEC-Q200 compliance: The 0ABB-5000-TM maintains AEC-Q200 certification. Bourns substitute parts do not carry AEC-Q200 designation; however, SF-0603S500-2, SF-0603SP500-2, and SF-0603SA500M-2 carry UL or cUL approvals suitable for general industrial and consumer applications.

For extended temperature operation (-55°C to 150°C): Select SF-0603SP500M-2 or SF-0603SA500M-2. Both parts maintain the full operating temperature range of the original 0ABB-5000-TM. The SF-0603SP500M-2 is preferred for 32 V DC circuits, while SF-0603SA500M-2 provides additional voltage margin at 35 V DC.

For standard temperature applications (-20°C to 105°C): SF-0603S500-2 and SF-0603SP500-2 are suitable alternatives with lower melting I²t values (0.622), providing faster response characteristics within their temperature range.

For circuits with voltage headroom requirements: SF-0603SA500M-2 rated at 35 V DC accommodates applications where 32 V DC margin is insufficient.

For high-volume procurement: SF-0603SP500M-2 and SF-0603S500-2 offer the highest inventory availability (23,940 and 29,372 units respectively) among substitute options.

All substitute parts maintain identical 0603 (1608 Metric) package dimensions, surface mount compatibility, and slow blow response characteristics, ensuring direct PCB footprint compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can SF-0603S500M-2 replace 0ABB-5000-TM in all applications?

A: SF-0603S500M-2 matches the primary electrical parameters (5 A, 32 V DC, slow blow, 0603 package) and extends the operating temperature range to -55°C to 125°C. However, the breaking capacity is rated at 35 A versus the original 50 A. Application-specific circuit requirements determine suitability.

Q: What is the significance of the melting I²t value difference between 0ABB-5000-TM (1.9) and SF-0603S500-2 (0.622)?

A: Melting I²t indicates the thermal energy required to melt the fuse element. Lower I²t values result in faster fuse response to overcurrent conditions. The 0ABB-5000-TM with I²t of 1.9 provides slower response compared to SF-0603S500-2 at 0.622. Circuit design must account for this difference in protection speed.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (SF-0603S500-2, SF-0603S500M-2, SF-0603SA500M-2, SF-0603SP500-2, SF-0603SP500M-2) are ROHS3 compliant and carry REACH Unaffected status, matching the environmental compliance of the original 0ABB-5000-TM.

Q: Which substitute part maintains the widest operating temperature range?

A: SF-0603SP500M-2 and SF-0603SA500M-2 both operate across -55°C to 150°C, matching the original 0ABB-5000-TM temperature specification. SF-0603S500M-2 operates to -55°C to 125°C, providing extended low-temperature performance but with reduced high-temperature capability.

Q: Is the 0603 package dimension identical across all parts?

A: All parts use the 0603 (1608 Metric) package classification. Physical dimensions vary slightly: the 0ABB-5000-TM measures 0.063" L x 0.032" W x 0.019" H, while Bourns substitutes range from 0.063" L x 0.032" W x 0.018" H to 0.063" L x 0.031" W x 0.037" H. These variations remain within standard 0603 footprint tolerances for PCB compatibility.

Q: What approval certifications are available for each substitute?

A: SF-0603S500-2 and SF-0603SP500-2 carry UL approval. SF-0603SA500M-2 carries cUL approval. SF-0603S500M-2 and SF-0603SP500M-2 do not list specific approval agencies. The original 0ABB-5000-TM carries AEC-Q200 and cURus certifications. Application requirements determine which certification is necessary.

Q: Can SF-0603SA500M-2 (35 V DC) be used in a 32 V DC circuit?

A: Yes. SF-0603SA500M-2 rated at 35 V DC exceeds the 32 V DC requirement and provides additional voltage margin. The higher voltage rating does not compromise performance in lower-voltage applications.

Q: What is the DC cold resistance difference between the original and substitutes?

A: The 0ABB-5000-TM exhibits 14 Ohms DC cold resistance, significantly higher than Bourns substitutes which range from 0.009 to 0.013 Ohms. This difference affects circuit behavior during normal operation and must be evaluated for applications sensitive to fuse resistance characteristics.

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