SM15T150A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SM15T150A-M3/9AT is an active Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional Zener diode is designed for general-purpose transient voltage suppression in surface mount applications. The part operates across a temperature range of -65°C to 150°C and is RoHS3 compliant with MSL 1 rating. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AB (SMC) package format.

Substiute Parts

SM15T150A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1027SM15T150A-M3/9AT Datasheet

Current PartRFQ

1.5SMC150A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 11311.5SMC150A-E3/57T Datasheet

DirectRFQ

1.5SMC150A

Taiwan Semiconductor CorporationIn Stock: 147811.5SMC150A Datasheet

MFR RecommendedRFQ

1.5SMC150A

Taiwan Semiconductor CorporationIn Stock: 147811.5SMC150A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM15T150A-M3/9AT are qualified based on the following criteria:

Electrical Parameter Matching:

• Voltage - Reverse Standoff (Typ): 128V
• Voltage - Breakdown (Min): 143V
• Voltage - Clamping (Max) @ Ipp: 207V
• Power - Peak Pulse: 1500W

Mechanical Compatibility:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

Compliance & Environmental:

• RoHS3 Compliant
• MSL 1 Rating
• Active Product Status

The substitute parts identified maintain these core electrical and mechanical specifications, ensuring functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and full RoHS3 compliance with MSL 1 ratings, confirming their suitability for production applications. The 1.5SMC150A-E3/57T from Vishay provides direct electrical and thermal equivalence to the SM15T150A-M3/9AT, with identical peak pulse current specification of 7.2A and matching operating temperature range of -65°C to 150°C.

The 1.5SMC150A from Taiwan Semiconductor Corporation offers equivalent electrical performance with a slightly higher peak pulse current rating of 7.6A. This part operates across a narrower temperature range of -55°C to 150°C. Selection between these alternatives depends on application-specific temperature requirements and sourcing availability.

Frequently Asked Questions (FAQ)

Q: Can the 1.5SMC150A-E3/57T be used as a direct replacement for SM15T150A-M3/9AT?

A: Yes. Both parts share identical electrical specifications (128V standoff, 207V clamping, 7.2A peak pulse current, 1500W power rating) and are packaged in DO-214AB (SMC) surface mount format. Operating temperature ranges are also identical at -65°C to 150°C.

Q: What is the difference between the Vishay 1.5SMC150A-E3/57T and Taiwan Semiconductor 1.5SMC150A?

A: The primary differences are manufacturer origin and peak pulse current rating. The Taiwan Semiconductor version specifies 7.6A peak pulse current versus 7.2A for the Vishay variant. The Taiwan Semiconductor part operates across -55°C to 150°C, while the Vishay part extends to -65°C minimum. All other electrical parameters and package specifications are identical.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the DO-214AB (SMC) package format and are surface mount devices. PCB footprints and reflow soldering profiles are compatible across all three options.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and maintain active product status. REACH and ECCN classifications are identical across all variants.

Q: Which part should be selected for applications requiring the lowest operating temperature?

A: The SM15T150A-M3/9AT and 1.5SMC150A-E3/57T both support -65°C minimum operating temperature. The Taiwan Semiconductor 1.5SMC150A is limited to -55°C minimum and should not be used in applications requiring operation below -55°C.