Equivalent & Substitute Parts for 0ZCE0100FF2E

Part Overview

The 0ZCE0100FF2E is a Polymeric PTC Resettable Fuse manufactured by Bel Fuse Inc., rated for 6V, 1A hold current in a 0805 (2012 Metric) surface mount package. This part is classified as Obsolete, making substitute components necessary for new designs and ongoing production requirements. The electrical and mechanical specifications of this fuse establish the baseline parameters for identifying compatible alternatives across multiple manufacturers.

Key Parameters

Parameter	Value
Voltage - Max	6V
Current - Hold (Ih) (Max)	1 A
Current - Trip (It)	1.95 A
Time to Trip	300 ms
Resistance - Initial (Ri) (Min)	60 mOhms
Resistance - Post Trip (R1) (Max)	210 mOhms
Operating Temperature	-40°C ~ 85°C
Package / Case	0805 (2012 Metric), Concave
Mounting Type	Surface Mount
Type	Polymeric

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

Voltage rating: 6V maximum
Current hold (Ih): 1 A maximum
Current trip (It): 1.95 A
Time to trip: 300 ms
Resistance initial (Ri): 60 mOhms minimum
Resistance post-trip (R1): 210 mOhms maximum
Package: 0805 (2012 Metric), Concave
Mounting: Surface Mount
Operating temperature range: -40°C to 85°C

Direct Substitutes maintain all electrical and mechanical parameters identically to the main part.

Parametric Equivalents match all critical electrical specifications and package dimensions but may differ in manufacturer, series designation, or compliance ratings.

Similar Parts share the same voltage and package family but differ in current ratings or trip characteristics, suitable only for applications with lower current requirements.

Parameter Comparison

Part Number	Manufacturer	Status	Voltage (Max)	Ih (Max)	It	Ri (Min)	R1 (Max)	Time to Trip	Package	Compliance
0ZCE0100FF2E	Bel Fuse Inc.	Obsolete	6V	1 A	1.95 A	60 mOhms	210 mOhms	300 ms	0805 Concave	cURus, TUV
0ZCK0100FF2E	Bel Fuse Inc.	Active	6V	1 A	1.95 A	60 mOhms	210 mOhms	300 ms	0805 Concave	cURus, TUV, AEC-Q200
FSMD100-0805R	RFE/Fuzetec	Active	6V	1 A	1.95 A	60 mOhms	210 mOhms	300 ms	0805 Concave	cUL, TUV, UL
0805L100WR	Littelfuse Inc.	Active	6V	1 A	1.95 A	60 mOhms	210 mOhms	300 ms	0805 Concave	cURus, TUV
0805L100WR-A	Littelfuse Inc.	Active	6V	1 A	1.95 A	60 mOhms	210 mOhms	300 ms	0805 Concave	cURus, TUV, AEC-Q200
0402L010SLKR	Littelfuse Inc.	Active	6V	100 mA	300 mA	150 mOhms	2 Ohms	1 s	0402 Concave	cURus, TUV
0402L020SLKR	Littelfuse Inc.	Active	6V	200 mA	500 mA	100 mOhms	1.25 Ohms	1 s	0402 Concave	cURus, TUV

Engineering Selection Recommendations

Direct Substitutes (Recommended for Pin-Compatible Replacement):

0ZCK0100FF2E, FSMD100-0805R, 0805L100WR, and 0805L100WR-A are direct electrical and mechanical equivalents to the 0ZCE0100FF2E. All maintain identical voltage, current hold, trip current, resistance, and time-to-trip specifications within the 0805 package footprint.

0ZCK0100FF2E is the active-status successor from the original manufacturer (Bel Fuse Inc.) and carries AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability.

FSMD100-0805R from RFE/Fuzetec provides equivalent performance with cUL, TUV, and UL certifications, offering broader regulatory coverage.

0805L100WR and 0805L100WR-A from Littelfuse Inc. are parametric equivalents with established market availability. The -A variant includes AEC-Q200 qualification for automotive applications.

Similar Parts (Current-Reduced Alternatives):

0402L010SLKR and 0402L020SLKR are smaller 0402 package alternatives with reduced current hold ratings (100 mA and 200 mA respectively). These are suitable only for applications where the lower current threshold is acceptable and space constraints favor the smaller package. Direct substitution is not recommended without circuit redesign verification.

Frequently Asked Questions (FAQ)

Q: Can I use 0ZCK0100FF2E as a direct replacement for 0ZCE0100FF2E?

A: Yes. The 0ZCK0100FF2E is electrically and mechanically identical to the 0ZCE0100FF2E, with all parameters matching exactly. The primary difference is product status: 0ZCK0100FF2E is Active while 0ZCE0100FF2E is Obsolete. The 0ZCK variant includes AEC-Q200 qualification.

Q: What is the difference between 0805L100WR and 0805L100WR-A?

A: Both parts are parametric equivalents with identical electrical specifications and 0805 package dimensions. The -A variant includes AEC-Q200 automotive qualification. Selection depends on application requirements for automotive-grade certification.

Q: Can I substitute the 0402L010SLKR or 0402L020SLKR for the main part?

A: These 0402 package parts have lower current hold ratings (100 mA and 200 mA respectively) compared to the 1 A rating of the main part. Substitution is not recommended without circuit analysis to confirm the lower current threshold is acceptable for your application. Package size is also significantly smaller.

Q: What certifications should I verify for my application?

A: The main part carries cURus and TUV certifications. Substitute parts maintain these certifications with variations: some include AEC-Q200 (automotive), cUL, or UL. Verify that the selected substitute meets your specific regulatory and application requirements.

Q: Are all substitute parts available in the same packaging format?

A: No. The main part is specified as loose packaging. Direct substitutes are available in Tape & Reel (TR) format for production volumes. Verify packaging compatibility with your assembly process before final selection.

Q: What is the operating temperature range for all substitutes?

A: All listed substitutes maintain the -40°C to 85°C operating temperature range of the main part, ensuring thermal compatibility across applications.

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