SMCJ6.5A M6G Equivalent & Substitute Parts

Part Overview

The SMCJ6.5A M6G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose overvoltage protection applications. This component features a 6.5V reverse standoff voltage with an 11.2V maximum clamping voltage and 140A peak pulse current capability in a surface-mount DO-214AB (SMC) package.

The SMCJ6.5A M6G variant is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. The substitute part listed maintains identical electrical and mechanical specifications while offering active product status and improved inventory availability.

Substiute Parts

SMCJ6.5A M6G

Taiwan Semiconductor CorporationIn Stock: 1146SMCJ6.5A M6G Datasheet

Current PartRFQ

SMCJ6.5A

Taiwan Semiconductor CorporationIn Stock: 84190SMCJ6.5A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMCJ6.5A M6G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Must Match Exactly):

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Breakdown (Min): 7.22V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Current - Peak Pulse (10/1000µs): 140A
• Power - Peak Pulse: 1500W

Mechanical Parameters (Must Match Exactly):

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)

Compliance Parameters (Must Match Exactly):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SMCJ6.5A variant meets all substitution criteria and is classified as a direct equivalent to the SMCJ6.5A M6G.

Parameter Comparison

Engineering Selection Recommendations

The SMCJ6.5A (without the M6G suffix) is the direct substitute for the SMCJ6.5A M6G. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, mechanical packaging, and compliance certifications.

Selection Basis:

The substitute part is recommended based on the following factors:

1. Electrical Equivalence: All voltage ratings, current ratings, and power dissipation specifications are identical across both parts.

2. Mechanical Compatibility: Both parts utilize the DO-214AB (SMC) surface-mount package, ensuring identical PCB footprint and assembly compatibility.

3. Compliance Alignment: Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating, satisfying regulatory and environmental requirements.

4. Product Status: The SMCJ6.5A maintains active product status with significantly higher inventory availability (84,100 units versus 1,043 units), ensuring supply chain continuity.

5. Temperature Performance: Both parts operate across the identical temperature range of -55°C to 150°C (TJ), maintaining thermal performance specifications.

The SMCJ6.5A is a direct functional and physical replacement suitable for all applications where the SMCJ6.5A M6G was originally specified.

Frequently Asked Questions (FAQ)

Q: What is the difference between SMCJ6.5A M6G and SMCJ6.5A?

A: The SMCJ6.5A M6G and SMCJ6.5A are electrically and mechanically identical. The M6G suffix typically indicates a specific manufacturing date code or supplier designation. Both parts share identical voltage ratings (6.5V standoff, 11.2V clamping), current ratings (140A peak pulse), and DO-214AB package specifications.

Q: Can I use SMCJ6.5A as a direct replacement for SMCJ6.5A M6G in my circuit?

A: Yes. The SMCJ6.5A is a direct substitute. All electrical parameters, mechanical dimensions, and compliance certifications are identical. No circuit modifications or re-qualification are required.

Q: Are the PCB footprints identical between these parts?

A: Yes. Both parts use the DO-214AB (SMC) surface-mount package, which defines identical pad layouts and component placement requirements. No PCB redesign is necessary.

Q: What is the operating temperature range for both parts?

A: Both the SMCJ6.5A M6G and SMCJ6.5A operate across -55°C to 150°C (junction temperature). This range applies to all electrical specifications and performance guarantees.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Why is the SMCJ6.5A recommended over the SMCJ6.5A M6G?

A: The SMCJ6.5A is recommended due to active product status and superior inventory availability. The SMCJ6.5A M6G is discontinued at DiGi Electronics, while the SMCJ6.5A maintains 84,100 units in stock, ensuring reliable supply chain access.

Q: What is the peak pulse current rating for these TVS diodes?

A: Both parts are rated for 140A peak pulse current (10/1000µs waveform), with a maximum clamping voltage of 11.2V at this current level.

Q: Can these parts be used for power line protection applications?

A: No. Both the SMCJ6.5A M6G and SMCJ6.5A are classified for general-purpose applications and are not rated for power line protection.