Equivalent & Substitute Parts for 0ZCF0300FF2C

Part Overview

The 0ZCF0300FF2C is a polymeric PTC resettable fuse manufactured by Bel Fuse Inc., rated for 6V maximum voltage with a 3A hold current. This surface mount component in 2920 package format is designed for overcurrent protection in electronic circuits. The part is currently active in production with full inventory availability. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical performance specifications.

Key Parameters

Parameter	Value
Voltage - Max	6V
Current - Hold (Ih) (Max)	3 A
Current - Trip (It)	5.2 A
Current - Max	100 A
Time to Trip	25 s
Resistance - Initial (Ri) (Min)	10 mOhms
Resistance - Post Trip (R1) (Max)	48 mOhms
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	2920 (7351 Metric), Concave
Size / Dimension	0.290" L x 0.202" W (7.36mm x 5.12mm)
Thickness (Max)	0.035" (0.90mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0ZCF0300FF2C is determined by strict equivalence across the following critical parameters:

Voltage rating: 6V maximum
Hold current (Ih): 3A maximum
Trip current (It): 5.2A
Time to trip: 25 seconds
Initial resistance (Ri): 10 mOhms minimum
Post-trip resistance (R1): 48 mOhms maximum
Operating temperature range: -40°C to 85°C
Package format: 2920 (7351 Metric), Concave surface mount
Physical dimensions: 0.290" L x 0.202" W, 0.035" maximum thickness
RoHS3 compliance

The substitute part FSMD300-2920-R meets all these parameters and is therefore classified as a parametric equivalent.

Parameter Comparison

Parameter	0ZCF0300FF2C (Bel Fuse Inc.)	FSMD300-2920-R (RFE/Fuzetec)
Voltage - Max	6V	6V
Current - Hold (Ih) (Max)	3 A	3 A
Current - Trip (It)	5.2 A	5.2 A
Current - Max	100 A	100 A
Time to Trip	25 s	25 s
Resistance - Initial (Ri) (Min)	10 mOhms	10 mOhms
Resistance - Post Trip (R1) (Max)	48 mOhms	48 mOhms
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	2920 (7351 Metric), Concave	2920 (7351 Metric), Concave
Size / Dimension	0.290" L x 0.202" W (7.36mm x 5.12mm)	0.290" L x 0.202" W (7.36mm x 5.12mm)
Thickness (Max)	0.035" (0.90mm)	0.035" (0.90mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active

Engineering Selection Recommendations

Both the 0ZCF0300FF2C and FSMD300-2920-R are active production components with full RoHS3 compliance. The 0ZCF0300FF2C carries AEC-Q200, cURus, and TUV approvals. The FSMD300-2920-R carries cUL, TUV, and UL approvals. Selection between these parts should be based on specific certification requirements for the application and supply chain availability. Both components are suitable for equivalent circuit protection applications where 6V, 3A hold current specifications are required.

Frequently Asked Questions (FAQ)

Q: Can FSMD300-2920-R be used as a direct replacement for 0ZCF0300FF2C?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (6V, 3A Ih, 5.2A It, 25s trip time) and mechanical dimensions (2920 package, 0.290" x 0.202" x 0.035" max). Both are RoHS3 compliant and surface mount compatible.

Q: Are there differences in approval certifications?

A: Yes. The 0ZCF0300FF2C includes AEC-Q200 certification, while the FSMD300-2920-R includes cUL and UL certifications. Application requirements should determine which certification set is necessary.

Q: Do these parts have different moisture sensitivity levels?

A: The 0ZCF0300FF2C is rated MSL 2A (4 weeks), while the FSMD300-2920-R is rated MSL 2 (1 year). Both are MSL 2 classification but with different storage duration specifications.

Q: Will the 2920 package fit existing PCB layouts designed for the original part?

A: Yes. Both parts use identical 2920 (7351 Metric) concave surface mount packaging with matching physical dimensions and footprints.

Q: Are there any resistance specification differences?

A: No. Both parts have identical initial resistance (Ri) minimum of 10 mOhms and post-trip resistance (R1) maximum of 48 mOhms.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message