SMCJ6.5A-13 Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMCJ6.5A-13 is a unidirectional Zener-type transient voltage suppressor manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 6.5V reverse standoff voltage and provides 11.2V maximum clamping voltage at peak pulse current. The SMCJ6.5A-13 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	6.5V
Voltage - Breakdown (Min)	7.22V
Voltage - Clamping (Max) @ Ipp	11.2V
Current - Peak Pulse (10/1000µs)	133.9A
Power - Peak Pulse	1500W
Operating Temperature Range	-55°C to 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitution for the SMCJ6.5A-13 is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff: 6.5V (exact match required)
Voltage - Clamping (Max) @ Ipp: 11.2V (exact match required)
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC (mechanical compatibility)
Type: Zener, Unidirectional (1 channel)
Operating Temperature Range: -55°C minimum to 150°C minimum

Substitute parts are grouped into two categories based on peak pulse current and power dissipation capacity:

Category A - Direct Electrical Equivalents (133.9A Ipp, 1500W): Parts with identical peak pulse current and power ratings as the original SMCJ6.5A-13.

Category B - Higher Performance Alternatives (267.9A Ipp, 3000W): Parts with doubled peak pulse current and power dissipation, suitable for applications requiring enhanced transient protection margin while maintaining identical voltage parameters.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	Product Status	RoHS Status
SMCJ6.5A-13	Diodes Incorporated	6.5V	11.2V	133.9A	1500W	-55°C to 150°C	DO-214AB, SMC	Discontinued	RoHS non-compliant
SMCJ6.5A-13-F	Diodes Incorporated	6.5V	11.2V	133.9A	1500W	-55°C to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ6.5A	Taiwan Semiconductor Corporation	6.5V	11.2V	140A	1500W	-55°C to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ6.5A-E3/57T	Vishay General Semiconductor - Diodes Division	6.5V	11.2V	133.9A	1500W	-55°C to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ6.5A	Alpha & Omega Semiconductor Inc.	6.5V	11.2V	267.9A	3000W	-55°C to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ6.5A	Bourns Inc.	6.5V	11.2V	267.9A	3000W	-55°C to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ6.5A-TP	Micro Commercial Co	6.5V	11.2V	267.9A	3000W	-55°C to 175°C	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents):

SMCJ6.5A-13-F from Diodes Incorporated is the direct replacement, offering identical electrical specifications with ROHS3 compliance and active product status. This part maintains the original 133.9A peak pulse current and 1500W power dissipation in tape & reel packaging.

SMCJ6.5A from Taiwan Semiconductor Corporation provides electrical equivalence with a marginal increase in peak pulse current (140A vs. 133.9A) while maintaining 1500W power dissipation and active status with ROHS3 compliance.

SMCJ6.5A-E3/57T from Vishay General Semiconductor matches the original specifications exactly with 133.9A peak pulse current, 1500W power dissipation, and ROHS3 compliance in tape & reel packaging.

Higher Performance Alternatives:

SMDJ6.5A, SMLJ6.5A, and SMLJ6.5A-TP are suitable for applications where enhanced transient protection margin is acceptable. These parts double the peak pulse current (267.9A) and power dissipation (3000W) while maintaining identical voltage parameters. SMLJ6.5A-TP extends the operating temperature range to 175°C.

All substitute parts maintain surface-mount DO-214AB (SMC) package compatibility and are ROHS3 compliant with active product status.

Frequently Asked Questions (FAQ)

Q: Can SMCJ6.5A-13 be replaced with SMDJ6.5A or SMLJ6.5A?

A: Yes. These parts maintain identical voltage parameters (6.5V reverse standoff, 11.2V clamping) and package compatibility (DO-214AB, SMC). The primary difference is doubled peak pulse current (267.9A vs. 133.9A) and power dissipation (3000W vs. 1500W), providing enhanced protection margin in the same footprint.

Q: What is the difference between SMCJ6.5A-13-F and SMCJ6.5A-13?

A: SMCJ6.5A-13-F is the active production equivalent with identical electrical specifications. The primary differences are product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant). Packaging is tape & reel (TR) for the -F variant.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitutes use the DO-214AB surface-mount package (SMC designation). This ensures mechanical and footprint compatibility on PCBs designed for the SMCJ6.5A-13.

Q: Which substitute offers the widest operating temperature range?

A: SMLJ6.5A-TP from Micro Commercial Co extends the operating temperature range to -55°C to 175°C, compared to -55°C to 150°C for other substitutes.

Q: Are all substitutes RoHS compliant?

A: All active substitute parts listed are ROHS3 compliant. The original SMCJ6.5A-13 is RoHS non-compliant, making ROHS3-compliant substitutes necessary for applications with RoHS requirements.

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