MF-R075-2-14 Equivalent & Substitute Parts

Part Overview

The MF-R075-2-14 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc. in the Multifuse® MF-R series. This through-hole radial disc component provides overcurrent protection at 60V with a 750 mA hold current rating. The part is Active status and widely used in electronic circuit protection applications requiring automatic reset functionality after fault conditions clear.

Substitute parts are identified when electrical and mechanical parameters remain within the specified tolerances for this product category, ensuring functional equivalence in circuit protection applications.

Substiute Parts

MF-R075-2-14

Bourns Inc.In Stock: 1047MF-R075-2-14 Datasheet

Current PartRFQ

MF-R075-2

Bourns Inc.In Stock: 3142MF-R075-2 Datasheet

Parametric EquivalentRFQ

MF-R075-AP

Bourns Inc.In Stock: 12989MF-R075-AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF-R075-2-14 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that define functional interchangeability:

Electrical Parameters (Must Match):

• Voltage - Max: 60V
• Current - Hold (Ih) (Max): 750 mA
• Current - Trip (It): 1.5 A
• Current - Max: 40 A
• Time to Trip: 6.3 s
• Resistance - Initial (Ri) (Min): 180 mOhms
• Resistance - Post Trip (R1) (Max): 600 mOhms
• Operating Temperature: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: Radial, Disc
• Size / Dimension: 0.409" Dia x 0.122" T (10.40mm x 3.10mm)
• Lead Spacing: 0.201" (5.10mm)

Compliance Parameters (Must Match):

• Type: Polymeric
• Approval Agency: cURus, TUV
• RoHS Status: ROHS3 Compliant

The identified substitutes MF-R075-2 and MF-R075-AP maintain identical electrical performance, mechanical form factor, and regulatory compliance, differing only in packaging configuration (Cut Tape vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

All three parts—MF-R075-2-14, MF-R075-2, and MF-R075-AP—are Active status components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and supply chain requirements rather than functional performance.

MF-R075-2-14 is supplied in standard packaging configuration with 1032 pieces in stock inventory.

MF-R075-2 is supplied in Cut Tape (CT) packaging with 3130 pieces in stock inventory, suitable for automated assembly processes.

MF-R075-AP is supplied in Cut Tape (CT) packaging with 12880 pieces in stock inventory, offering the highest availability for high-volume production requirements.

All parts carry cURus and TUV approval certifications and maintain ROHS3 compliance. Selection should be based on assembly method compatibility and inventory availability for the intended application.

Frequently Asked Questions (FAQ)

Q: Can MF-R075-2 or MF-R075-AP be used as direct replacements for MF-R075-2-14?

A: Yes. All three parts are parametrically equivalent across all electrical and mechanical specifications. The differences are limited to packaging format (standard vs. Cut Tape) and do not affect circuit protection performance.

Q: What is the difference between the packaging types?

A: MF-R075-2-14 uses standard packaging suitable for manual or conventional pick-and-place assembly. MF-R075-2 and MF-R075-AP use Cut Tape (CT) packaging optimized for automated tape-and-reel assembly processes. The electrical and mechanical form factors are identical.

Q: Are all three parts certified to the same standards?

A: Yes. All parts carry cURus and TUV approval certifications and are ROHS3 compliant. Regulatory compliance is identical across all three variants.

Q: Which part should I select for high-volume production?

A: MF-R075-AP offers the highest inventory availability (12880 pieces) and Cut Tape packaging suitable for automated assembly. MF-R075-2 provides an alternative Cut Tape option with moderate inventory (3130 pieces).

Q: Do these parts have the same operating temperature range?

A: Yes. All three parts operate across the identical temperature range of -40°C to 85°C with the same electrical performance characteristics.

Q: Are there any differences in hold current or trip current specifications?

A: No. All three parts maintain identical hold current (750 mA), trip current (1.5 A), and all other electrical parameters including initial resistance (180 mOhms minimum) and post-trip resistance (600 mOhms maximum).