MF-R800-0-14 Equivalent & Substitute Parts

Part Overview

The MF-R800-0-14 is a polymeric PTC resettable fuse manufactured by Bourns Inc. in the Multifuse® MF-R series. This component functions as an automatic reset protective device for overcurrent conditions in electronic circuits. The device operates at a maximum voltage of 30V with a hold current of 8A and provides automatic trip protection at 16A. The part is currently in active production status with 773 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across manufacturers, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

MF-R800-0-14

Bourns Inc.In Stock: 857MF-R800-0-14 Datasheet

Current PartRFQ

MF-R800

Bourns Inc.In Stock: 3880MF-R800 Datasheet

Parametric EquivalentRFQ

PFRA.800

SCHURTER Inc.In Stock: 806PFRA.800 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-R800-0-14 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Voltage - Maximum: 30V
• Current - Hold (Ih) Maximum: 8A
• Current - Trip (It): 16A
• Current - Maximum: 40A
• Time to Trip: 18.8s
• Resistance - Initial (Ri) Minimum: 5 mOhms
• Resistance - Post Trip (R1) Maximum: 30 mOhms
• Operating Temperature Range: -40°C to 85°C

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Package Type: Radial, Disc
• Lead Spacing: 0.402 inches (10.20 mm)
• Height - Seated Maximum: 1.295 inches (32.90 mm)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Two substitute parts meet all substitution criteria for the MF-R800-0-14: the MF-R800 (Bourns Inc.) and the PFRA.800 (SCHURTER Inc.).

Parameter Comparison

Engineering Selection Recommendations

MF-R800 (Bourns Inc.): The MF-R800 is a direct parametric equivalent to the MF-R800-0-14, manufactured by the same supplier. Both components share identical electrical and mechanical specifications. The MF-R800 maintains active product status and ROHS3 compliance. This substitute provides the highest inventory availability at 3785 units in stock. Selection of this substitute eliminates supplier diversification but ensures continuity within the Multifuse® MF-R product line.

PFRA.800 (SCHURTER Inc.): The PFRA.800 is a cross-manufacturer substitute produced by SCHURTER Inc. All electrical parameters, mechanical dimensions, and lead spacing are identical to the MF-R800-0-14. The PFRA.800 maintains active product status and ROHS3 compliance. This substitute introduces supplier diversity while maintaining full functional equivalence. Inventory availability is 715 units in stock.

Both substitute parts are suitable for direct replacement in applications where the MF-R800-0-14 is specified, provided that circuit design does not include manufacturer-specific performance characteristics beyond the stated electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the MF-R800 be used as a direct replacement for the MF-R800-0-14?

A: Yes. The MF-R800 is a parametric equivalent with identical electrical specifications (30V maximum voltage, 8A hold current, 16A trip current, 18.8s trip time), identical resistance characteristics (5 mOhms initial, 30 mOhms post-trip maximum), and identical mechanical dimensions (0.402" lead spacing, 1.295" seated height). Both are through-hole radial disc packages manufactured by Bourns Inc. in the Multifuse® MF-R series.

Q: Can the PFRA.800 be used as a direct replacement for the MF-R800-0-14?

A: Yes. The PFRA.800 is a cross-manufacturer substitute with identical electrical specifications, resistance characteristics, and mechanical dimensions. The PFRA.800 is manufactured by SCHURTER Inc. and operates within the same parameter envelope as the MF-R800-0-14. Both components are through-hole radial disc packages with 0.402" lead spacing and 1.295" seated height.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact equivalence in: maximum voltage (30V), hold current (8A), trip current (16A), maximum current (40A), trip time (18.8s), initial resistance (5 mOhms minimum), post-trip resistance (30 mOhms maximum), operating temperature range (-40°C to 85°C), mounting type (through hole), package type (radial disc), lead spacing (0.402"), and seated height (1.295").

Q: Are there differences in approval agencies between the main part and substitutes?

A: The MF-R800-0-14 carries approvals from cUL, cURus, TUV, and UL. The MF-R800 carries approvals from cURus and TUV. The PFRA.800 carries approvals from cURus and TUV. Applications requiring specific approval agency certification should verify that the selected substitute meets all required regulatory standards.

Q: What is the difference in inventory availability between these parts?

A: The MF-R800 has the highest inventory availability at 3785 units in stock. The MF-R800-0-14 has 773 units in stock. The PFRA.800 has 715 units in stock. Inventory levels should be confirmed at the time of procurement.

Q: Are all three parts RoHS3 compliant?

A: Yes. The MF-R800-0-14, MF-R800, and PFRA.800 are all ROHS3 compliant and REACH unaffected.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. All three parts share identical mechanical dimensions, lead spacing (0.402"), and seated height (1.295"), enabling direct PCB footprint compatibility. Through-hole mounting characteristics are identical across all three components.