Equivalent & Substitute Parts for MF-RX160-AP

Part Overview

The MF-RX160-AP is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc. as part of the Multifuse® MF-RX series. This through-hole radial disc component is rated for 60V maximum voltage with a 1.6A hold current. The product is currently listed as Obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

MF-RX160-AP

Bourns Inc.In Stock: 926MF-RX160-AP Datasheet

Current PartRFQ

MF-RX160/72-AP

Bourns Inc.In Stock: 873MF-RX160/72-AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-RX160-AP is determined by the following critical parameters:

Mandatory Matching Parameters:

• Mounting Type: Through Hole
• Package / Case: Radial, Disc
• Current - Hold (Ih) (Max): 1.6 A
• Current - Trip (It): 3.2 A
• Resistance - Initial (Ri) (Min): 90 mOhms
• Resistance - Post Trip (R1) (Max): 220 mOhms
• Time to Trip: 11.4 s
• Operating Temperature Range: -40°C ~ 85°C
• Lead Spacing: 0.201" (5.10mm)
• Size / Dimension: 0.642" L x 0.122" W (16.30mm x 3.10mm)
• Height - Seated (Max): 0.839" (21.30mm)

Allowable Variation Parameter:

• Voltage - Max: May exceed 60V while maintaining all other electrical and mechanical specifications

The MF-RX160/72-AP qualifies as a parametric equivalent because it maintains all mandatory parameters while providing a higher voltage rating of 72V, making it suitable for applications where the original 60V specification can accommodate the increased voltage margin.

Parameter Comparison

Engineering Selection Recommendations

The MF-RX160/72-AP is the qualified substitute for the obsolete MF-RX160-AP. Selection is based on the following engineering criteria:

Product Status: The MF-RX160/72-AP maintains Active product status, ensuring continued availability and manufacturing support, whereas the original MF-RX160-AP is Obsolete.

Compliance & Certification: Both components carry identical regulatory approvals (cURus, TUV) and maintain ROHS3 compliance, ensuring equivalent safety and environmental standards.

Electrical & Mechanical Compatibility: The substitute part maintains identical hold current (1.6A), trip current (3.2A), trip time (11.4s), and resistance characteristics. The increased voltage rating (72V vs. 60V) provides additional design margin without affecting circuit protection behavior in applications operating at or below 60V.

Physical Compatibility: Identical through-hole radial disc packaging, lead spacing (0.201"), and overall dimensions (0.642" L x 0.122" W, height 0.839") ensure direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the MF-RX160/72-AP be used as a direct replacement for the MF-RX160-AP?

A: Yes. The MF-RX160/72-AP is a parametric equivalent with identical electrical protection characteristics (1.6A hold current, 3.2A trip current, 11.4s trip time) and mechanical dimensions. The higher voltage rating (72V) does not affect operation in circuits designed for 60V maximum.

Q: What is the difference between the two parts?

A: The primary difference is the maximum voltage rating: MF-RX160-AP is rated 60V, while MF-RX160/72-AP is rated 72V. All other electrical parameters, physical dimensions, and thermal characteristics are identical. The MF-RX160/72-AP is currently in Active production status.

Q: Are the packaging and lead configurations identical?

A: Yes. Both components use through-hole radial disc packaging with 0.201" lead spacing and identical physical dimensions (0.642" L x 0.122" W, 0.839" seated height). No PCB layout changes are required for substitution.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the MF-RX160-AP and MF-RX160/72-AP carry cURus and TUV approvals and are ROHS3 compliant, meeting identical safety and environmental requirements.

Q: Why is the original part listed as Obsolete?

A: The MF-RX160-AP has been discontinued by Bourns Inc. The MF-RX160/72-AP remains in active production and serves as the recommended substitute for new designs and ongoing component procurement.