MF-RHT700-AP Equivalent & Substitute Parts

Part Overview

The MF-RHT700-AP is a polymeric PTC resettable fuse manufactured by Bourns Inc., rated for 16V maximum voltage and 7A 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 qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

MF-RHT700-AP

Bourns Inc.In Stock: 811MF-RHT700-AP Datasheet

Current PartRFQ

0ZRN0700FF1A

Bel Fuse Inc.In Stock: 13700ZRN0700FF1A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MF-RHT700-AP is determined by strict equivalence across the following critical parameters:

• Voltage rating: 16V maximum
• Hold current: 7A maximum
• Trip current: 13A
• Time to trip: 7 seconds
• Initial resistance: 10 mOhms minimum
• Post-trip resistance: 25 mOhms maximum
• Operating temperature range: -40°C to 125°C
• Mounting configuration: Through hole radial disc package
• Physical dimensions: 14.00mm L x 3.00mm W with 5.10mm lead spacing
• Compliance: AEC-Q200 rated, ROHS3 compliant

The substitute part 0ZRN0700FF1A from Bel Fuse Inc. meets all specified electrical and mechanical parameters, enabling direct functional replacement in circuit designs requiring polymeric PTC resettable fuse protection.

Parameter Comparison

Engineering Selection Recommendations

Both the MF-RHT700-AP and 0ZRN0700FF1A are active production components with identical electrical specifications and mechanical form factors. Selection between these parts should be based on:

• Availability and lead time requirements
• Supply chain preferences and established vendor relationships
• Approval agency certifications: The 0ZRN0700FF1A carries additional certifications (cURus, TUV, UL) beyond the MF-RHT700-AP
• Inventory status: 0ZRN0700FF1A has higher stock availability (1354 pcs vs 703 pcs)

Both components satisfy AEC-Q200 automotive qualification and ROHS3 environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 0ZRN0700FF1A directly replace the MF-RHT700-AP in existing designs?

A: Yes. Both components share identical electrical parameters (16V, 7A hold current, 13A trip current, 7-second trip time), identical resistance specifications, and identical physical dimensions with 5.10mm lead spacing. No circuit modifications are required.

Q: Are there differences in operating temperature ranges?

A: No. Both parts operate across the identical temperature range of -40°C to 125°C.

Q: What is the significance of the additional certifications on the 0ZRN0700FF1A?

A: The 0ZRN0700FF1A carries cURus, TUV, and UL approvals in addition to AEC-Q200 rating. These certifications may be required for specific applications or regional regulatory compliance. The MF-RHT700-AP holds AEC-Q200 qualification.

Q: Do these parts have different moisture sensitivity levels?

A: The MF-RHT700-AP specifies MSL 1 (Unlimited). The 0ZRN0700FF1A lists MSL as Not Applicable. Both are suitable for standard handling and storage conditions.

Q: Are the lead spacing and package dimensions identical?

A: Yes. Both components use radial disc packaging with 0.201" (5.10mm) lead spacing, 14.00mm length, 3.00mm width, and 21.90mm maximum seated height. PCB footprints are interchangeable.