SMA6F16A-M3/6B Equivalent & Substitute Parts

Part Overview

The SMA6F16A-M3/6B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is part of the TransZorb® series and is designed for general-purpose transient voltage suppression applications. The device features a 16V reverse standoff voltage with a 29.5V maximum clamping voltage and peak pulse current capability of 119A (8/20µs). The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Alternative equivalent parts may be required due to inventory constraints, application-specific performance requirements, or supply chain considerations.

Substiute Parts

SMA6F16A-M3/6B

Vishay General Semiconductor - Diodes DivisionIn Stock: 869SMA6F16A-M3/6B Datasheet

Current PartRFQ

SMAJ16A-TP

Micro Commercial CoIn Stock: 9672SMAJ16A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitution for the SMA6F16A-M3/6B is determined by the following critical electrical and mechanical parameters:

• Reverse Standoff Voltage: 16V nominal
• Breakdown Voltage (Min): 17.8V
• Package Type: Surface mount configuration (DO-221AC or compatible SMA variants)
• Unidirectional Channel Configuration: Single channel
• Zener Type: Unidirectional TVS diode
• RoHS Compliance: ROHS3 Compliant
• Operating Temperature Range: -55°C to 175°C

The SMAJ16A-TP from Micro Commercial Co meets the primary electrical specifications for reverse standoff voltage (16V) and breakdown voltage (17.8V minimum). Both devices are surface-mount TVS diodes with identical voltage ratings and RoHS3 compliance. Differences in clamping voltage and peak pulse current reflect design variations within the same functional category and do not preclude substitution in applications where the SMAJ16A-TP performance envelope is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Both the SMA6F16A-M3/6B and SMAJ16A-TP are active-status TVS diodes with identical reverse standoff and breakdown voltage specifications. Selection between these parts is based on application power dissipation requirements and package footprint constraints.

The SMA6F16A-M3/6B provides higher peak pulse current (119A) and power handling (4000W) in a DO-221AC (SlimSMA) package. This configuration is suitable for high-energy transient suppression applications requiring maximum energy absorption.

The SMAJ16A-TP offers reduced peak pulse current (15.3A) and power dissipation (400W) in a DO-214AC (SMA) package. This configuration is appropriate for lower-energy transient events or space-constrained designs where the reduced power envelope is sufficient.

Both devices maintain full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard surface-mount assembly processes and long-term storage without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SMAJ16A-TP be used as a direct replacement for SMA6F16A-M3/6B?

A: Substitution is possible when the application transient energy profile does not exceed the SMAJ16A-TP power dissipation limit of 400W. The identical reverse standoff voltage (16V) and breakdown voltage (17.8V minimum) ensure voltage-level compatibility. However, the reduced peak pulse current (15.3A versus 119A) must be verified against circuit transient specifications.

Q: What is the difference between DO-221AC and DO-214AC packages?

A: Both are surface-mount SMA-family packages for TVS diodes. DO-221AC (SlimSMA) and DO-214AC (SMA) differ in physical dimensions and lead configuration. PCB footprint compatibility must be confirmed before substitution. Consult package datasheets for exact dimensional specifications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both SMA6F16A-M3/6B and SMAJ16A-TP operate across -55°C to 175°C, ensuring thermal compatibility in equivalent applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both devices are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity), REACH unaffected, and classified under ECCN EAR99. Compliance documentation is equivalent for both parts.

Q: What determines whether I should choose the higher-power SMA6F16A-M3/6B?

A: Selection is based on peak transient current and energy requirements. If circuit analysis indicates peak pulse currents exceeding 15.3A or energy dissipation exceeding 400W, the SMA6F16A-M3/6B (119A, 4000W) is required. For lower-energy transients, SMAJ16A-TP is sufficient.