Equivalent & Substitute Parts Reference: MF-RHT550-2-14

Part Overview

The Bourns Inc. MF-RHT550-2-14 is a Polymeric PTC Resettable Fuse, 16V 5.5A Ih, designed with through hole radial, disc leaded packaging and certified for automotive (AEC-Q200) and multiple global agency approvals. The product is actively available, but identifying alternative models is essential when alternate packaging, inventory levels, or specific compliance requirements arise within the Polymeric PTC Resettable Fuse category.

Substiute Parts

MF-RHT550-2-14

Bourns Inc.In Stock: 766MF-RHT550-2-14 Datasheet

Current PartRFQ

MF-RHT550-2

Bourns Inc.In Stock: 1065MF-RHT550-2 Datasheet

Parametric EquivalentRFQ

MF-RHT550-2

Bourns Inc.In Stock: 1065MF-RHT550-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the Polymeric PTC Resettable Fuse category is governed by the equivalency of electrical, thermal, mechanical, regulatory, and package criteria. The applicable key parameters for substitution—Voltage - Max, Current - Hold (Ih), Current - Trip (It), Current - Max, Time to Trip, Resistance Initial and Post Trip, Operating Temperature, Ratings, Package / Case, Size / Dimension, Height - Seated, Lead Spacing, RoHS, REACH, and compliance certifications—are strictly matched between MF-RHT550-2-14 and listed substitute parts. Packaging differences (Tape & Reel, Cut Tape) do not affect electrical or mechanical equivalence.

Parameter Comparison

Engineering Selection Recommendations

MF-RHT550-2-14 and MF-RHT550-2 are parametric equivalents within the Polymeric PTC Resettable Fuse category, maintaining identical electrical, thermal, mechanical, and regulatory specifications. Both are ROHS3 compliant and REACH unaffected. MF-RHT550-2-14 lists multiple agency approvals (cUL, cURus, TUV) whereas MF-RHT550-2 does not specify approval agencies. Equivalence supports either part for circuit protection selection, provided agency certifications are not a mandatory requirement for the application. Inventory status and packaging format (Tape & Reel vs. Cut Tape) can inform component selection in procurement scenarios.

Frequently Asked Questions (FAQ)

Q1: What are the criteria for substituting MF-RHT550-2-14 with MF-RHT550-2?
A1: Substitution is valid when all key electrical, mechanical, and regulatory parameters—Voltage, Current ratings, Time to Trip, Resistance values, Operating Temperature, Mounting type, Package, Dimensions, Lead Spacing, RoHS, and REACH—match between parts.

Q2: Does packaging format (Tape & Reel vs. Cut Tape) affect component equivalency in electrical circuits?
A2: Packaging format does not impact electrical or mechanical equivalence. Selection can be based on preferred packaging for assembly methods.

Q3: Are certification differences relevant for all applications?
A3: If regulatory approvals such as cUL, cURus, or TUV are required, select parts with listed agency certifications. Otherwise, parts with identical technical specifications are interchangeable within the Polymeric PTC Resettable Fuse category.

Q4: Is there any dimensional or performance difference between MF-RHT550-2-14 and MF-RHT550-2?
A4: No. Both parts have matching dimensional and performance parameters as per the provided data.

Q5: What must be verified when selecting substitute parts in the Polymeric PTC Resettable Fuse category?
A5: Confirm matching electrical ratings, mechanical dimensions, mounting type, regulatory compliance (RoHS, REACH), and, when required by the application, agency approvals.