SSTC 7 Equivalent & Substitute Parts Reference

Part Overview

The SSTC 7 is a 7A 125VAC/VDC surface mount board mount fuse manufactured by Bel Fuse Inc. in 2-SMD square end block configuration with clip. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Active alternatives within the 0680L series provide functional equivalence with enhanced specifications and current availability.

Key Parameters

Parameter	Value
Current Rating	7 A
Voltage Rating AC	125 V
Voltage Rating DC	125 V
Response Time	Slow Blow
Fuse Type	Board Mount (Cartridge Style Excluded)
Package / Case	2-SMD, Square End Block
Mounting Type	Surface Mount
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SSTC 7 are identified from the 0680L series based on strict electrical and mechanical parameter matching:

Matching Criteria:

Current Rating: 7 A (identical)
Voltage Rating: 125 V AC / 125 V DC (identical)
Response Time: Slow Blow (identical)
Fuse Type: Board Mount (identical)
Package Configuration: 2-SMD, Square End Block (identical)
Mounting Type: Surface Mount (identical)
Operating Temperature: -55°C ~ 125°C (identical)
RoHS Compliance: ROHS3 Compliant (identical)
MSL Rating: 1 (Unlimited) (identical)

Substitute Part Numbers:

0680L7000-01
0680L7000-05
0680L7000-11
0680L7000-15
0680L7000-21
0680L7000-25

All substitute parts are manufactured by Bel Fuse and maintain functional equivalence with the SSTC 7 across all critical electrical and mechanical parameters.

Parameter Comparison

Parameter	SSTC 7	0680L7000-01	0680L7000-05	0680L7000-11	0680L7000-15	0680L7000-21	0680L7000-25
Current Rating (A)	7	7	7	7	7	7	7
Voltage Rating AC (V)	125	125	125	125	125	125	125
Voltage Rating DC (V)	125	125	125	125	125	125	125
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	2-SMD, Square End Block with Clip	2-SMD, Square End Block	2-SMD, Square End Block	2-SMD, Square End Block	2-SMD, Square End Block	2-SMD, Square End Block	2-SMD, Square End Block
Mounting Type	Requires Holder, Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Breaking Capacity @ Rated Voltage	50A	50A AC, 100A DC	50A AC, 100A DC	50A AC, 100A DC	50A AC, 100A DC	50A AC, 100A DC	50A AC, 100A DC
Melting I²t	80	68	68	68	68	68	68
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
DC Cold Resistance (Ohms)	0.01	0.012	0.012	0.012	0.012	0.012	0.012
RoHS Status	ROHS3 Compliant	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)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Approval Agency	-	AEC-Q200, CE, cURus	AEC-Q200, CE, cURus	AEC-Q200, CE, cURus	AEC-Q200, CE, cURus	AEC-Q200, CE, cURus	AEC-Q200, CE, cURus
Packaging	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

All 0680L series substitute parts (0680L7000-01, 0680L7000-05, 0680L7000-11, 0680L7000-15, 0680L7000-21, 0680L7000-25) are functionally equivalent to the SSTC 7 and are recommended for direct replacement in new designs and production applications.

Key Advantages of 0680L Series Substitutes:

Active product status with ongoing manufacturer support and availability
Enhanced breaking capacity specifications (50A AC, 100A DC vs. 50A for SSTC 7)
Third-party certifications: AEC-Q200, CE, cURus compliance
Tape & Reel packaging suitable for automated assembly processes
Identical electrical performance across all critical parameters

Physical Dimension Consideration:

The 0680L series features a smaller footprint (0.240" L x 0.100" W x 0.100" H) compared to the SSTC 7 (0.330" L x 0.128" W x 0.115" H). PCB layout verification is required to confirm mechanical fit within existing holder or socket configurations.

Frequently Asked Questions (FAQ)

Q: Can 0680L7000 series parts directly replace SSTC 7 in existing designs?

A: Electrical substitution is direct based on matching current rating, voltage rating, response time, and operating temperature. Mechanical fit must be verified due to dimensional differences. The SSTC 7 requires a holder, while 0680L parts are surface mount compatible. Confirm holder or socket compatibility before implementation.

Q: What is the difference between the various 0680L7000 part numbers?

A: All listed 0680L7000 variants (01, 05, 11, 15, 21, 25) share identical electrical and mechanical specifications. Differences are internal manufacturing variants or tape/reel configurations. Selection can be based on inventory availability or supplier preference without affecting circuit performance.

Q: Are there compliance differences between SSTC 7 and 0680L substitutes?

A: The SSTC 7 lists no approval agencies. All 0680L series substitutes carry AEC-Q200, CE, and cURus certifications, providing enhanced compliance documentation for automotive and regulated applications.

Q: How do the melting I²t values differ?

A: SSTC 7 has a melting I²t of 80, while 0680L series parts have 68. Both values fall within the slow-blow fuse category and maintain the same 7A current rating and response characteristics. The difference reflects manufacturing process variations between product lines.

Q: What packaging format should be selected for automated assembly?

A: The 0680L series is supplied in Tape & Reel (TR) format, suitable for pick-and-place assembly equipment. The SSTC 7 is available in Cut Tape (CT) & Digi-Reel® format, which is manual-friendly but less suitable for high-volume automated production.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message