SMF7.0A-TP Equivalent & Substitute Parts

Part Overview

The SMF7.0A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose interface protection applications. This surface-mount component operates with a 7V reverse standoff voltage and provides 12V clamping at peak pulse current, delivering 200W peak pulse power dissipation. The part is currently in active production status with 724 pieces available in bulk packaging. Substitute parts are identified to address inventory availability, packaging format requirements, or supply chain alternatives while maintaining electrical and mechanical compatibility.

Substiute Parts

SMF7.0A-TP

Micro Commercial CoIn Stock: 755SMF7.0A-TP Datasheet

Current PartRFQ

SMF7.0A

MDDIn Stock: 18332SMF7.0A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMF7.0A-TP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 7V
• Voltage - Breakdown (Min): 7.78V
• Voltage - Clamping (Max) @ Ipp: 12V
• Current - Peak Pulse (10/1000µs): 16.7A
• Power - Peak Pulse: 200W
• Type: Zener
• Unidirectional Channels: 1

Mechanical Parameters (Must Match):

• Package / Case: SOD-123F
• Mounting Type: Surface Mount

Acceptable Variations:

• Packaging format (Bulk vs. Tape & Reel)
• Operating temperature range (provided minimum and maximum bounds are met or exceeded)
• Manufacturer identity
• Inventory quantity

The substitute part SMF7.0A from MDD meets all electrical and mechanical equivalence criteria, with identical voltage and current specifications. Operating temperature range differs (-55°C to 150°C vs. -65°C to 175°C), representing a narrower specification window that remains suitable for most general-purpose applications within standard industrial operating conditions.

Parameter Comparison

*Operating temperature range of SMF7.0A is narrower but remains within standard industrial specifications.

Engineering Selection Recommendations

Primary Selection Criteria:

The SMF7.0A-TP remains the preferred choice when the full operating temperature range of -65°C to 175°C is required, particularly for applications in extreme environmental conditions or military/aerospace specifications.

The SMF7.0A (MDD) is electrically and mechanically equivalent and is suitable for general-purpose interface protection applications operating within the -55°C to 150°C temperature window. This substitute offers significantly higher inventory availability (18,300 pieces vs. 724 pieces) and is available in Tape & Reel packaging, which is advantageous for automated assembly processes.

Compliance Considerations:

Both parts carry Active product status and REACH Unaffected designation. The SMF7.0A additionally carries RoHS3 Compliance and MSL 1 (Unlimited) moisture sensitivity rating, providing enhanced supply chain documentation and handling flexibility.

Packaging Implications:

Selection between Bulk and Tape & Reel formats depends on assembly methodology. Tape & Reel packaging (SMF7.0A) is standard for high-volume surface-mount production lines, while Bulk packaging (SMF7.0A-TP) is suitable for manual assembly, prototyping, or lower-volume applications.

Frequently Asked Questions (FAQ)

Q: Can SMF7.0A replace SMF7.0A-TP in all applications?

A: SMF7.0A is electrically and mechanically equivalent for applications operating within -55°C to 150°C. Applications requiring operation below -55°C or above 150°C must use SMF7.0A-TP to ensure compliance with specified temperature ratings.

Q: What is the difference between Bulk and Tape & Reel packaging?

A: Bulk packaging contains loose components suitable for manual handling and lower-volume assembly. Tape & Reel packaging presents components on continuous carrier tape in reels, optimized for automated pick-and-place assembly equipment. Both formats contain identical components with identical electrical specifications.

Q: Are there any compatibility issues with PCB layout or footprint?

A: Both parts use SOD-123F package geometry. PCB footprints are identical. No layout modifications are required when substituting between these parts.

Q: Does the narrower operating temperature range of SMF7.0A affect reliability?

A: Operating temperature range defines the validated environmental limits for the component. SMF7.0A is qualified and tested for -55°C to 150°C operation. Use within this range presents no reliability concerns. Applications requiring extended temperature operation must specify SMF7.0A-TP.

Q: What does REACH Unaffected status mean?

A: REACH Unaffected indicates the component is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements, simplifying compliance documentation for European supply chains.

Q: Is RoHS3 Compliance on SMF7.0A significant?

A: RoHS3 Compliance confirms the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This certification is required for many commercial and industrial applications, particularly in European markets.