MF-RG800-AP Equivalent & Substitute Parts

Part Overview

The MF-RG800-AP is a polymeric PTC resettable fuse manufactured by Bourns Inc., rated for 16V maximum voltage and 8A hold current. This component is designed for overcurrent protection in electronic circuits, automatically resetting after a fault condition is cleared. The part is currently in active production status with AEC-Q200 automotive-grade ratings and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges.

Substiute Parts

MF-RG800-AP

Bourns Inc.In Stock: 846MF-RG800-AP Datasheet

Current PartRFQ

PTR016V0800-TR

Eaton - Electronics DivisionIn Stock: 1966PTR016V0800-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-RG800-AP is determined by strict equivalence across the following critical parameters:

• Voltage rating: 16V maximum
• Hold current (Ih): 8A maximum
• Trip current (It): 13.6A
• Time to trip: 5 seconds
• Operating temperature range: -40°C to 85°C
• Mounting configuration: Through hole radial disc package
• Lead spacing tolerance: within mechanical PCB compatibility limits
• Regulatory compliance: ROHS3 and cURus approval

The PTR016V0800-TR from Eaton - Electronics Division meets all specified electrical parameters and maintains mechanical compatibility within the radial disc form factor. Resistance characteristics (initial and post-trip) remain within acceptable operational ranges for this application category.

Parameter Comparison

Engineering Selection Recommendations

Both the MF-RG800-AP and PTR016V0800-TR are active production components with ROHS3 compliance and cURus certification. The MF-RG800-AP carries AEC-Q200 automotive-grade qualification. The PTR016V0800-TR includes additional TUV approval. Selection between these parts should be based on supply availability, packaging format preference (Tape & Box versus Cut Tape), and specific regulatory requirements of the end application. Lead spacing variance of 0.004 inches (0.10 mm) is within standard PCB tolerance for radial through-hole mounting.

Frequently Asked Questions (FAQ)

Q: Can PTR016V0800-TR replace MF-RG800-AP in all applications?

A: Yes, provided the application does not mandate AEC-Q200 qualification specifically. Both parts meet identical electrical specifications and operating temperature ranges. Lead spacing difference of 0.004 inches is within standard PCB hole tolerance for radial components.

Q: What is the significance of the lead spacing difference?

A: The MF-RG800-AP has 0.201 inches (5.10 mm) lead spacing while PTR016V0800-TR has 0.197 inches (5.00 mm). This 0.004-inch variance is typical for radial disc packages and should not affect PCB compatibility in standard designs with normal manufacturing tolerances.

Q: Are the resistance characteristics interchangeable?

A: Yes. Initial resistance (Ri) and post-trip resistance (R1) values are within compatible ranges. MF-RG800-AP specifies 5.6 mOhms minimum initial resistance and 17.5 mOhms maximum post-trip resistance. PTR016V0800-TR specifies 5 mOhms minimum and 18 mOhms maximum, both acceptable for equivalent circuit protection performance.

Q: What packaging formats are available?

A: MF-RG800-AP is supplied in Tape & Box format. PTR016V0800-TR is supplied in Cut Tape format. Selection depends on assembly process requirements and inventory management preferences.

Q: Do both parts have the same trip characteristics?

A: Yes. Both parts have identical trip current (13.6A) and time to trip (5 seconds) specifications, ensuring equivalent protection behavior in the circuit.