MF-SMDF200-2 Equivalent & Substitute Parts

Part Overview

The MF-SMDF200-2 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc. in the Multifuse® series. This surface mount component is rated for 10V maximum voltage with a 2A hold current and is housed in a 2018 (5045 Metric) package. The part is Active status and widely used in circuit protection applications requiring automatic reset capability. Substitute parts may be required due to inventory constraints, regional availability, or specific application requirements within compatible electrical and mechanical parameters.

Substiute Parts

MF-SMDF200-2

Bourns Inc.In Stock: 12202MF-SMDF200-2 Datasheet

Current PartRFQ

2016L200PR

Littelfuse Inc.In Stock: 190112016L200PR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-SMDF200-2 is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Current - Hold (Ih) (Max): Must be 2 A
• Voltage - Max: Must support minimum 10V operation
• Current - Trip (It): Must be within acceptable range for circuit protection function
• Resistance characteristics: Initial and post-trip resistance must be compatible with circuit design

Mechanical Compatibility Parameters:

• Mounting Type: Must be Surface Mount
• Package / Case: Must be compatible with 2018 or equivalent metric package footprint
• Size / Dimension: Physical dimensions must fit PCB layout constraints
• Thickness: Must not exceed 0.033" (0.85mm) for board assembly compatibility

Compliance & Regulatory Parameters:

• RoHS Status: Must be ROHS3 Compliant
• Moisture Sensitivity Level: Must be MSL 1 or equivalent
• REACH Status: Must be REACH Unaffected
• Product Status: Must be Active

The substitute part 2016L200PR from Littelfuse Inc. meets the hold current requirement of 2A and shares the same polymeric PTC resettable fuse technology. However, it operates at a lower maximum voltage (6V vs. 10V) and uses a different package footprint (2016 vs. 2018), which affects mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

MF-SMDF200-2 (Primary Selection): The MF-SMDF200-2 is the specified component and remains the primary selection. It is Active status, ROHS3 Compliant, and REACH Unaffected. The part carries cURus and TUV certifications through its series designation and is suitable for applications requiring 10V maximum voltage operation.

2016L200PR (Conditional Substitution): The 2016L200PR from Littelfuse Inc. shares identical hold current (2A) and maximum current (40A) ratings, identical operating temperature range, and equivalent compliance status (ROHS3 Compliant, REACH Unaffected, EAR99 classification). However, this part operates at a reduced maximum voltage of 6V compared to the 10V specification of the MF-SMDF200-2. Additionally, the 2016 package footprint differs from the 2018 package, requiring PCB layout verification. The 2016L200PR is suitable only for applications where the circuit voltage does not exceed 6V and where the smaller package footprint (2016 vs. 2018) is compatible with the PCB design.

Frequently Asked Questions (FAQ)

Q: Can the 2016L200PR be used as a direct replacement for the MF-SMDF200-2?

A: No. While both parts share the same 2A hold current rating and polymeric PTC resettable fuse technology, the 2016L200PR has a maximum voltage rating of 6V compared to the MF-SMDF200-2's 10V rating. Additionally, the package footprints differ (2016 vs. 2018), requiring PCB layout changes. Substitution is only valid for applications operating at 6V or below with compatible PCB design.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical electrical parameters are: Current - Hold (Ih) at 2A, Current - Trip (It) within acceptable range, maximum voltage rating, and resistance characteristics. Both parts must operate within the same voltage and current specifications of the target application.

Q: Are there package compatibility concerns between the MF-SMDF200-2 and 2016L200PR?

A: Yes. The MF-SMDF200-2 uses a 2018 (5045 Metric) package measuring 0.200" L x 0.180" W, while the 2016L200PR uses a 2016 (5041 Metric) package measuring 0.200" L x 0.160" W. The width difference of 0.020" (0.51mm) requires PCB footprint verification before substitution.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the MF-SMDF200-2 and 2016L200PR are ROHS3 Compliant, REACH Unaffected, classified as EAR99, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Both are Active status products.

Q: What is the voltage limitation when considering the 2016L200PR as a substitute?

A: The 2016L200PR is rated for a maximum voltage of 6V, while the MF-SMDF200-2 is rated for 10V. Applications requiring operation above 6V must use the MF-SMDF200-2 or equivalent 10V-rated alternatives.