MF-SM200-2-006 Polymeric PTC Resettable Fuse Equivalent & Substitute Parts

Part Overview

The MF-SM200-2-006 is a polymeric PTC resettable fuse manufactured by Bourns Inc. in the Multifuse® MF-SM series. This component provides overcurrent protection with a 15V maximum voltage rating and 2A hold current specification. The part is actively produced and widely stocked, with 679 units available in new original condition. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product category, enabling design flexibility and supply chain optimization.

Substiute Parts

MF-SM200-2-006

Bourns Inc.In Stock: 748MF-SM200-2-006 Datasheet

Current PartRFQ

MF-SM200-2

Bourns Inc.In Stock: 15290MF-SM200-2 Datasheet

Parametric EquivalentRFQ

PFSM.200.2

SCHURTER Inc.In Stock: 6632PFSM.200.2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF-SM200-2-006 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 must remain identical:

• Voltage - Max: 15V
• Current - Hold (Ih) (Max): 2 A
• Current - Trip (It): 4 A
• Current - Max: 100 A
• Time to Trip: 12 s
• Resistance - Initial (Ri) (Min): 45 mOhms
• Resistance - Post Trip (R1) (Max): 125 mOhms
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 2-SMD
• Size / Dimension: 0.344" L x 0.264" W (8.75mm x 6.71mm)
• Thickness (Max): 0.118" (3.00mm)
• Type: Polymeric
• Ratings: AEC-Q200
• Approval Agency: cURus, TUV
• RoHS Status: ROHS3 Compliant

Two substitute parts meet these criteria: MF-SM200-2 from Bourns Inc. and PFSM.200.2 from SCHURTER Inc. Both maintain identical electrical performance and mechanical compatibility with the original part number.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—MF-SM200-2-006, MF-SM200-2, and PFSM.200.2—are active products with identical electrical and mechanical specifications. Selection between these parts may be based on the following factors:

Bourns Inc. MF-SM200-2: This substitute maintains the same manufacturer as the original part number and offers significantly higher inventory availability (15,200 units). The primary difference is packaging format (Tape & Reel vs. unspecified for the main part). This option provides supply chain continuity within the same manufacturer ecosystem.

SCHURTER Inc. PFSM.200.2: This substitute from an alternative manufacturer meets all parametric requirements and maintains AEC-Q200 automotive qualification and TUV/cURus approvals. Inventory availability is 6,551 units. This option provides cross-manufacturer compatibility for applications requiring supply chain diversification.

All three parts carry ROHS3 compliance, AEC-Q200 ratings, and equivalent regulatory approvals, making them suitable for direct substitution in applications where the specified electrical and mechanical parameters are required.

Frequently Asked Questions (FAQ)

Q: Can MF-SM200-2 be used as a direct replacement for MF-SM200-2-006?

A: Yes. MF-SM200-2 is a parametric equivalent with identical electrical specifications (15V, 2A hold current, 4A trip current, 12s trip time) and mechanical dimensions (2-SMD, 8.75mm x 6.71mm x 3.00mm). The primary difference is packaging format (Tape & Reel). Both are manufactured by Bourns Inc. and carry identical certifications.

Q: Is PFSM.200.2 from SCHURTER Inc. compatible with designs using MF-SM200-2-006?

A: Yes. PFSM.200.2 maintains all critical electrical parameters and mechanical specifications required for direct substitution. It is manufactured by SCHURTER Inc. and carries the same AEC-Q200 rating and regulatory approvals (cURus, TUV). Cross-manufacturer substitution is valid when all parametric specifications are identical.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: voltage rating (15V), hold current (2A), trip current (4A), maximum current (100A), trip time (12s), initial resistance (45 mOhms minimum), post-trip resistance (125 mOhms maximum), operating temperature range (-40°C to 85°C), mounting type (Surface Mount), package type (2-SMD), physical dimensions (0.344" x 0.264" x 0.118"), and regulatory certifications (AEC-Q200, cURus, TUV, ROHS3).

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Reel vs. other formats) affects handling, storage, and assembly processes but does not alter electrical performance or component specifications. All three part numbers deliver identical electrical characteristics regardless of packaging.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three part numbers carry AEC-Q200 qualification, indicating suitability for automotive applications. They maintain identical electrical specifications and regulatory compliance required for automotive overcurrent protection circuits.