PC06F3A Surface Mount Fuse 3A 32V - Equivalent & Substitute Parts

Part Overview

The PC06F3A is a surface mount board-mounted fuse manufactured by Eaton Electronics Division, rated for 3 amperes at 32 volts AC/DC with fast-blow response characteristics. This component is designed for 0603 (1608 metric) package applications requiring overcurrent protection in low-voltage circuits.

The PC06F3A carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this fuse specification.

Substiute Parts

PC06F3A

Eaton - Electronics DivisionIn Stock: 982PC06F3A Datasheet

Current PartRFQ

TR/0603FA3-R

Eaton - Electronics DivisionIn Stock: 5114TR/0603FA3-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PC06F3A is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 3 A
• Voltage Rating AC: 32 V
• Voltage Rating DC: 32 V
• Response Time: Fast Blow
• Package / Case: 0603 (1608 Metric)
• Mounting Type: Surface Mount
• Fuse Type: Board Mount (Cartridge Style Excluded)

The substitute part TR/0603FA3-R satisfies all mandatory matching parameters, confirming functional and mechanical compatibility with the PC06F3A in equivalent circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TR/0603FA3-R

The TR/0603FA3-R is the direct functional equivalent for the obsolete PC06F3A. Both components share identical electrical ratings (3 A, 32 V AC/DC, fast-blow response) and mechanical specifications (0603 package, surface mount configuration).

The TR/0603FA3-R offers the following advantages:

• Active Product Status: Currently manufactured and in production, ensuring long-term supply availability
• Enhanced Compliance: Holds both CSA and UL approvals, compared to UL-only certification for the PC06F3A
• Improved Moisture Handling: MSL rating of 1 (unlimited shelf life) versus MSL 2 (1-year limit) for the PC06F3A
• Environmental Compliance: ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements
• Specified Operating Temperature: Rated for -55°C to 125°C operation, providing defined thermal performance envelope

Electrical Performance Differences:

The TR/0603FA3-R exhibits lower breaking capacity (35 A versus 50 A) and reduced melting I²t (0.0699 versus 0.15778). These differences reflect design optimization in the active product line. For applications where the original 50 A breaking capacity is a circuit design requirement, compatibility must be verified against the actual fault current levels in the protected circuit.

The TR/0603FA3-R is suitable for direct replacement in new designs and legacy system maintenance where the 35 A breaking capacity meets circuit protection requirements.

Frequently Asked Questions (FAQ)

Q: Can TR/0603FA3-R be used as a direct drop-in replacement for PC06F3A?

A: Yes. Both components share identical current rating (3 A), voltage rating (32 V AC/DC), response time (fast-blow), and package specification (0603 surface mount). Mechanical and electrical compatibility is confirmed for equivalent circuit protection function.

Q: What is the significance of the different breaking capacity ratings (50 A vs. 35 A)?

A: Breaking capacity defines the maximum fault current the fuse can safely interrupt without component failure or hazard. The TR/0603FA3-R's 35 A breaking capacity is adequate for most low-voltage surface mount applications. If the circuit design requires 50 A breaking capacity, the application must be evaluated to confirm that actual fault currents remain below 35 A.

Q: Why does the TR/0603FA3-R have lower melting I²t and higher DC cold resistance?

A: These parameters reflect design differences between the obsolete PC06F3A and the active TR/0603FA3-R product line. The lower melting I²t indicates faster thermal response, while the higher DC cold resistance is within acceptable limits for surface mount fuse applications. Both components meet the 3 A fast-blow specification.

Q: Is the TR/0603FA3-R packaging compatible with PC06F3A board layouts?

A: Yes. Both components use identical 0603 (1608 metric) package dimensions and surface mount footprints. PCB layouts designed for PC06F3A accept TR/0603FA3-R without modification.

Q: What compliance advantages does TR/0603FA3-R offer?

A: The TR/0603FA3-R holds CSA and UL approvals (versus UL-only for PC06F3A), is ROHS3 compliant, and REACH unaffected. The MSL rating of 1 (unlimited) provides superior moisture protection compared to MSL 2 (1-year limit). These certifications support modern regulatory and supply chain requirements.

Q: Is the TR/0603FA3-R available in the same packaging format as PC06F3A?

A: The TR/0603FA3-R is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount production. The PC06F3A packaging format is not specified in available documentation. Tape & Reel format is compatible with automated assembly equipment used in modern manufacturing.