SMF13A-M3-08 Equivalent & Substitute Parts

Part Overview

The SMF13A-M3-08 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates with a 13V reverse standoff voltage and provides 21.5V maximum clamping voltage at peak pulse current, designed for general-purpose transient protection applications. The device is housed in a DO-219AB (SMF) surface mount package and maintains Active product status with full RoHS3 compliance. Equivalent and substitute parts are identified when electrical parameters and mechanical compatibility align within specified tolerances for the application requirements.

Substiute Parts

SMF13A-M3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 9510SMF13A-M3-08 Datasheet

Current PartRFQ

PTVS64VS1UTR,115

Nexperia USA Inc.In Stock: 12649PTVS64VS1UTR,115 Datasheet

MFR RecommendedRFQ

SMF13A-TP

Micro Commercial CoIn Stock: 13960SMF13A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMF13A-M3-08 are identified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 13V
• Voltage - Clamping (Max) @ Ipp: 21.5V
• Current - Peak Pulse (10/1000µs): 9.3A
• Power - Peak Pulse: 200W
• Unidirectional Channels: 1
• Type: Zener
• Surface Mount configuration

Substitute Parts Identified:

1. SMF13A-TP (Micro Commercial Co) — Exact electrical parameter match with alternative package configuration (SOD-123FL vs. DO-219AB)
2. PTVS64VS1UTR,115 (Nexperia USA Inc.) — Different voltage class (64V standoff) with automotive-grade qualification; electrical parameters do not align with primary application requirements

Parameter Comparison

Engineering Selection Recommendations

SMF13A-TP (Micro Commercial Co) is the direct electrical equivalent to SMF13A-M3-08. Both devices share identical voltage ratings (13V standoff, 21.5V clamping), peak pulse current (9.3A), and power dissipation (200W). The primary difference is the package configuration: SMF13A-TP uses SOD-123FL instead of DO-219AB. Both are surface mount, RoHS3 compliant, and Active status products. Selection between these two depends on PCB layout requirements and footprint compatibility.

PTVS64VS1UTR,115 (Nexperia USA Inc.) operates in a different voltage class (64V standoff, 103V clamping) and is not electrically equivalent for 13V protection applications. This part is suitable only for higher-voltage transient suppression circuits. The automotive-grade AEC-Q101 qualification and extended temperature range (-55 to 185°C) are available but do not compensate for the voltage mismatch. This part should not be selected as a substitute for the SMF13A-M3-08 in standard 13V protection circuits.

Frequently Asked Questions (FAQ)

Q: Can SMF13A-TP replace SMF13A-M3-08 directly? A: Yes, SMF13A-TP is electrically equivalent with identical voltage ratings, peak pulse current, and power dissipation. The difference is package type (SOD-123FL vs. DO-219AB). Substitution is valid if the PCB footprint accommodates the SOD-123FL package.

Q: Why is PTVS64VS1UTR,115 listed as a substitute if the voltage ratings differ? A: PTVS64VS1UTR,115 is listed in the provided substitute data but is not electrically compatible for 13V protection applications. This part is designed for 64V standoff voltage circuits and should not be used as a replacement for SMF13A-M3-08.

Q: What is the difference between DO-219AB and SOD-123FL packages? A: Both are surface mount packages for TVS diodes. DO-219AB (SMF) and SOD-123FL (SOD-123F) have different footprints and land patterns. PCB design and assembly equipment compatibility must be confirmed before substitution.

Q: Are all substitute parts RoHS3 compliant? A: Yes, SMF13A-TP and PTVS64VS1UTR,115 are both RoHS3 compliant, matching the compliance status of SMF13A-M3-08.

Q: Does SMF13A-TP have automotive qualification? A: No, SMF13A-TP does not carry automotive-grade certification. PTVS64VS1UTR,115 is AEC-Q101 qualified, but its voltage class makes it unsuitable for this application.