SMCJ6.5A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ6.5A-M3/9AT is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component in DO-214AB (SMC) package is designed for general-purpose transient voltage protection applications. The part is active and in production, with 784 units currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

SMCJ6.5A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 803SMCJ6.5A-M3/9AT Datasheet

Current PartRFQ

SMCJ6.5A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 34480SMCJ6.5A-E3/57T Datasheet

DirectRFQ

SMCJ6.5A-13-F

Diodes IncorporatedIn Stock: 4141SMCJ6.5A-13-F Datasheet

DirectRFQ

SMCJ6.5A

Taiwan Semiconductor CorporationIn Stock: 84190SMCJ6.5A Datasheet

UpgradeRFQ

SM15T6V8A

STMicroelectronicsIn Stock: 8497SM15T6V8A Datasheet

MFR RecommendedRFQ

SMDJ6.5A

Alpha & Omega Semiconductor Inc.In Stock: 12326SMDJ6.5A Datasheet

MFR RecommendedRFQ

SMLJ6.5A

Bourns Inc.In Stock: 15372SMLJ6.5A Datasheet

MFR RecommendedRFQ

SMLJ6.5A-TP

Micro Commercial CoIn Stock: 3790SMLJ6.5A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ6.5A-M3/9AT are classified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional
• Operating Temperature Range: -55°C ~ 150°C (TJ) minimum
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into three categories:

Direct Equivalents (Identical Electrical & Mechanical Specifications): Parts with matching voltage ratings, clamping characteristics, and package specifications from alternative manufacturers or packaging configurations.

Upgrade Options (Enhanced Performance): Parts with identical voltage ratings and package specifications but higher peak pulse current or power dissipation capabilities.

Alternative Specifications (Different Electrical Parameters): Parts with different voltage or current ratings that may serve similar applications but require design verification.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents: SMCJ6.5A-E3/57T (Vishay), SMCJ6.5A-13-F (Diodes Incorporated), and SMCJ6.5A (Taiwan Semiconductor Corporation) provide identical electrical specifications with matching voltage ratings, clamping characteristics, and peak pulse current. All are ROHS3 compliant and operate within the required temperature range. Selection among these options is based on packaging format availability and inventory requirements.

Enhanced Performance Options: SMDJ6.5A (Alpha & Omega Semiconductor Inc.), SMLJ6.5A (Bourns Inc.), and SMLJ6.5A-TP (Micro Commercial Co) maintain identical voltage specifications and package form factor while providing doubled peak pulse current (267.9A) and quadrupled power dissipation (3000W). These options are suitable for applications requiring higher transient energy absorption. SMLJ6.5A-TP extends the operating temperature range to -55°C ~ 175°C.

Alternative Specification: SM15T6V8A (STMicroelectronics) features a lower reverse standoff voltage (5.8V) and higher clamping voltage (13.4V) with significantly higher peak pulse current (746A at 8/20µs pulse width). This part is suitable only for applications where the different voltage characteristics are acceptable and the enhanced current handling is required.

All recommended substitutes maintain ROHS3 compliance and surface mount DO-214AB (SMC) package compatibility with the original SMCJ6.5A-M3/9AT specification.

Frequently Asked Questions (FAQ)

Q: Can SMCJ6.5A-E3/57T be used as a direct replacement for SMCJ6.5A-M3/9AT?

A: Yes. Both parts are manufactured by Vishay with identical electrical specifications: 6.5V reverse standoff voltage, 11.2V clamping voltage, 133.9A peak pulse current, and 1500W power dissipation. The difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both are ROHS3 compliant and operate across -55°C to 150°C.

Q: What is the difference between SMCJ6.5A and SMLJ6.5A series?

A: The SMCJ series (1500W) and SMLJ series (3000W) maintain identical voltage ratings (6.5V reverse standoff, 11.2V clamping) and package form factor (DO-214AB, SMC). The SMLJ series provides doubled peak pulse current (267.9A versus 133.9A) and doubled power dissipation capability. Selection depends on transient energy requirements in the application.

Q: Is SM15T6V8A compatible with SMCJ6.5A-M3/9AT?

A: SM15T6V8A has different voltage specifications (5.8V reverse standoff, 13.4V clamping) and significantly higher peak pulse current (746A). While the package is identical (DO-214AB, SMC), the different voltage characteristics require design verification before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and meet the same environmental compliance requirements as the original SMCJ6.5A-M3/9AT.

Q: What is the operating temperature range for SMLJ6.5A-TP?

A: SMLJ6.5A-TP operates across -55°C to 175°C, extending the upper temperature limit by 25°C compared to the original SMCJ6.5A-M3/9AT (-55°C to 150°C). This extended range may be beneficial for high-temperature applications.

Q: Can I use a higher power-rated part (3000W) in place of the 1500W original?

A: Yes. SMDJ6.5A, SMLJ6.5A, and SMLJ6.5A-TP provide identical voltage specifications with higher power dissipation ratings. These parts are suitable for applications requiring greater transient energy absorption and are backward compatible from a voltage perspective.