SMF8V0A-M3-18 Equivalent & Substitute Parts

Part Overview

The SMF8V0A-M3-18 is an 8V Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional Zener-type TVS diode is designed for general-purpose transient voltage suppression applications, featuring a 13.6V maximum clamping voltage and 14.7A peak pulse current capability. The device is housed in a DO-219AB (SMF) surface mount package and is actively produced with ROHS3 compliance. Equivalent and substitute parts are identified when electrical performance parameters and mechanical compatibility align with application requirements.

Substiute Parts

SMF8V0A-M3-18

Vishay General Semiconductor - Diodes DivisionIn Stock: 958SMF8V0A-M3-18 Datasheet

Current PartRFQ

SMF8.0A-TP

Micro Commercial CoIn Stock: 2319SMF8.0A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMF8V0A-M3-18 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 8V
• Voltage - Breakdown (Min): 8.89V
• Voltage - Clamping (Max) @ Ipp: 13.6V
• Current - Peak Pulse (10/1000µs): 14.7A
• Power - Peak Pulse: 200W
• Type: Zener, Unidirectional
• Applications: General Purpose
• RoHS Status: ROHS3 Compliant

Package Compatibility Consideration: The SMF8V0A-M3-18 uses the DO-219AB (SMF) package. Substitute parts may use alternative surface mount packages (such as SOD-123F) provided that the electrical specifications remain identical and the mounting type remains surface mount.

Parameter Comparison

Engineering Selection Recommendations

The SMF8.0A-TP (Micro Commercial Co) qualifies as a functional equivalent to the SMF8V0A-M3-18 based on identical electrical performance specifications across all critical parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and peak pulse power. Both devices maintain active product status and ROHS3 compliance.

The primary design consideration is package selection. The SMF8V0A-M3-18 uses the DO-219AB (SMF) package, while the SMF8.0A-TP uses the SOD-123F package. Both are surface mount packages suitable for automated assembly. Package selection should be based on PCB layout requirements, available board space, and existing design footprints.

Both devices are rated for the same operating temperature range and moisture sensitivity level, ensuring equivalent reliability in production and field environments.

Frequently Asked Questions (FAQ)

Q: What makes SMF8.0A-TP a valid substitute for SMF8V0A-M3-18?

A: The SMF8.0A-TP matches all critical electrical parameters of the SMF8V0A-M3-18, including 8V reverse standoff voltage, 13.6V maximum clamping voltage, and 14.7A peak pulse current. Both devices are Zener-type, unidirectional TVS diodes with identical power dissipation ratings and operating temperature ranges. Both maintain ROHS3 compliance and active product status.

Q: Can I use SMF8.0A-TP as a direct PCB replacement for SMF8V0A-M3-18?

A: Direct PCB replacement depends on package compatibility. The SMF8V0A-M3-18 uses DO-219AB (SMF) packaging, while SMF8.0A-TP uses SOD-123F packaging. These packages have different footprints and pin configurations. PCB layout modification is required if switching between these packages.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under the same ECCN (EAR99) and HTSUS (8541.10.0080) codes. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings. No compliance or certification differences exist.

Q: What is the difference between the operating temperature specifications (TJ vs TA)?

A: TJ refers to junction temperature, while TA refers to ambient temperature. Both specifications indicate the same operating temperature range of -65°C to 175°C. The notation difference reflects manufacturer documentation conventions and does not indicate a functional difference.

Q: Can I substitute based on package preference alone?

A: No. Substitution must be based on matching electrical performance parameters first. Package selection is a secondary consideration after confirming electrical equivalence. The SMF8.0A-TP is qualified as a substitute only because it matches all electrical specifications of the SMF8V0A-M3-18.