Polymeric PTC Resettable Fuse 0ZRC0010FF2E

Part Overview

The 0ZRC0010FF2E is a polymeric PTC resettable fuse manufactured by Bel Fuse Inc., designed for overcurrent protection in electronic circuits. This through-hole radial disc component provides automatic reset functionality with a 90V maximum voltage rating and 100 mA hold current. The part is currently in active production status with 3,080 units available in inventory. Alternative components may be required due to voltage rating constraints, lead time considerations, or specific application requirements where substitute parts offer equivalent electrical performance within defined parameter ranges.

Substiute Parts

0ZRC0010FF2E

Bel Fuse Inc.In Stock: 31840ZRC0010FF2E Datasheet

Current PartRFQ

RXEF010-2

LittelfuseIn Stock: 7663RXEF010-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RXEF010-2 manufactured by Littelfuse qualifies as a direct substitute based on the following critical electrical and mechanical parameters:

Matching Parameters:

• Current - Hold (Ih) (Max): 100 mA
• Current - Trip (It): 200 mA
• Current - Max: 40 A
• Time to Trip: 4 s
• Resistance - Initial (Ri) (Min): 2.5 Ohms
• Resistance - Post Trip (R1) (Max): 7.5 Ohms
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: Radial, Disc
• Lead Spacing: 0.199" (5.05mm) — within tolerance of 0.201" (5.10mm)
• RoHS Status: ROHS3 Compliant

Differing Parameter:

• Voltage - Max: 60V (versus 90V for the main part)

The RXEF010-2 operates at a lower maximum voltage rating of 60V. This substitute is applicable only in applications where the circuit voltage does not exceed 60V. Both parts share identical hold current, trip current, resistance characteristics, and thermal operating range, ensuring functional equivalence within the voltage constraint.

Parameter Comparison

Engineering Selection Recommendations

Both the 0ZRC0010FF2E and RXEF010-2 are active production components with full RoHS3 compliance. The 0ZRC0010FF2E carries cURus certification, while the RXEF010-2 holds broader regulatory approvals including CQC, CSA, TUV, and UL. Selection between these parts depends on circuit voltage requirements: use the 0ZRC0010FF2E for applications operating at voltages up to 90V, and the RXEF010-2 for circuits limited to 60V maximum. Both components share identical electrical protection characteristics, thermal operating range, and mechanical form factor, ensuring functional interchangeability within their respective voltage ratings. Lead spacing tolerance between the two parts (0.201" versus 0.199") is negligible for through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can the RXEF010-2 be used in place of the 0ZRC0010FF2E in all applications?

A: The RXEF010-2 is suitable only for applications where the maximum circuit voltage does not exceed 60V. If your circuit operates above 60V, the 0ZRC0010FF2E must be used. Both parts provide identical overcurrent protection characteristics at 100 mA hold current and 200 mA trip current.

Q: Are the physical dimensions compatible for PCB mounting?

A: Yes. Both parts use radial disc through-hole packages with lead spacing within 0.002" (0.05mm) of each other. The seated heights differ slightly (0.500" versus 0.457"), but this does not affect PCB compatibility for standard through-hole applications.

Q: What is the functional difference between these two parts?

A: The only functional difference is the maximum voltage rating. The 0ZRC0010FF2E is rated to 90V, while the RXEF010-2 is rated to 60V. All other electrical parameters—hold current, trip current, resistance characteristics, and thermal range—are identical.

Q: Which certifications should I consider for my application?

A: The 0ZRC0010FF2E carries cURus certification. The RXEF010-2 carries broader certifications including CQC, CSA, TUV, and UL. Select based on your regional regulatory requirements and end-use application standards.

Q: Are both parts currently available?

A: Yes. The 0ZRC0010FF2E has 3,080 units in stock, and the RXEF010-2 has 7,600 units in stock, both as new original components in cut tape packaging.